Sony BVH-2000 Operation And Maintenance Manual
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Sony BVH-2000 Operation And Maintenance Manual

Videocorder
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Table Of Contents
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Table of Contents

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Summary of Contents for Sony BVH-2000

  • Page 2 t: ~) , ~tt ~...
  • Page 3 ..-r r...
  • Page 5 Volume...
  • Page 8 10-12. 11-1. SIT-reel 11-4. 11-5. 11-6. 11-15-1.
  • Page 9 I.J'ClC'~,",,"" ,~"...
  • Page 10 DT SYSTEM ALIGNMENT Volume 2 LAYOUT Volume 3 OPTIONAL FIXTU...
  • Page 12 ""'.JL..J'-/I...
  • Page 13 Out-1/-2/-3...
  • Page 15 OPT\ONAL Function contra' Pane\s 8KH.20,\ '\ control panel {Tvpe-I) 8KH-20'\ 2 control pane' {TVpe-II) 8KH-2 control panel {Tvpe.ill)
  • Page 16 code generator/reader...
  • Page 18 BKH-2011/2012/2013 OOOAI B\TH-1 0001...
  • Page 20 Tape transport Level control panel Function control panel Circu it boards Connector panel (rear)
  • Page 21 1-4-1. Level Control Panel...
  • Page 26 ,r~;~~IP ,\~~ » . ;~~~'~~ ",J APEjEE APEjEE...
  • Page 27 TAPEjEE...
  • Page 28 (j).
  • Page 30 INHIBIT lamp...
  • Page 31 SEARCH indicator CD 0...
  • Page 34 t,:',> ''\'S;...
  • Page 35 -.;;;J TAPEI...
  • Page 36 (j).
  • Page 39 SEARCH dial SHUTTLE button...
  • Page 41 (variable) button...
  • Page 42 Edit function panel 1-32...
  • Page 44 I" t-r..Y\o· ..-v.,.,.rJ...
  • Page 48 TAPE/EE BVH-2000(OO) BVH-2000(02)
  • Page 49 TAPEI SERVO REF (reference) selector...
  • Page 50 HEAD (j).
  • Page 51 STOP 1-41...
  • Page 52 JLJ'-~''-,l''...
  • Page 53 1-43...
  • Page 54 SEARCH indicator...
  • Page 55 ,F""'~ ... """t-" ... '-", ..~...
  • Page 57 SPOT...
  • Page 59 20 key section...
  • Page 61 Setting the TIME CODE TC/U-BIT 1-51...
  • Page 63 of the point...
  • Page 64 1-54...
  • Page 65 1-4-6. Connector panel AC power cord...
  • Page 66 1-56...
  • Page 69 INPUT OUTPUT...
  • Page 71 CONNECTIONS (BB/CS) r------------ .,...
  • Page 72 1-6. PREADJUSTMENT 1-6-1. Record bias...
  • Page 74 RELEASE...
  • Page 75 Board and Insertion...
  • Page 76 ~~~~~~~~~~~~~~~~~~~~~ AUDIO-1 RECEQUALIZERVR LEVEL~~4~~~~~~~~~~~~~~~~~~~~AUDIO-1 RECLEVELVR ~~4~~~~~~~~~~~~~~~~~~~~AUDIO~RECEQUALIZERVR LEVEL 44~~~~~~~~~~~~~~~~~~~~ AUDIO~REClEVElVR...
  • Page 79 DM-25 board [}] (DEMODULATOR) OF F: position. signal is not...
  • Page 81 PHASE =>\...
  • Page 82 [!QJ LG-02 board (LOGIC) TEST 0 ~~4~~~~~~~~~~~~~~~~~~_ PLAY MODE...
  • Page 83 READ VITC ~ FREE CHAR VITC O· o·...
  • Page 88 CD-17 board ~ (CAPSTAN & DRUM) TEST POINT...
  • Page 89 11~.~~~~~~~~~~~~~~~~~~~~~_SCPHASEme~r ADJUST .~--- PULSE TEST POINT...
  • Page 90 c:::o...
  • Page 93 SHUTTLE Remarks...
  • Page 95 1-9-4. PROGRAM...
  • Page 96 1"'0C101"'"trori...
  • Page 97 1-9-6. VAR MEMORY (Type-III only)
  • Page 98 Standby mode for the VAR memory playback 1-9-7. Capstan Override...
  • Page 99 1-10-1. Assemble Editing EDIT...
  • Page 101 ------------..--------------'...
  • Page 103 1-95...
  • Page 104 only)
  • Page 109 AUDIO SPLIT EDIT area...
  • Page 112 .." ..1 ..","--' ..' ..
  • Page 113 PARALLEL OPERATION ..
  • Page 125 ®\...
  • Page 131 L-- __ -----1_----------------------------------...::...{ ---I...
  • Page 134 A-3 8EL:MICILINE Sel •••••••• 2-11-2, 1-6-3 REACTION T1ME ••••••••••••••• 2-11-7, 1-6-3, A-3 SEL:INT/EXT-1/EXT-2 8e1 ••••• 2-11-2, 1-6-3 4-12-1, 4-13-8, 4-13-10CA203H) TIME.. •• ••• 2-11-7, 1-6-3, VIDEO EQUALIZER:AUTOIMANU ••••••• 2 -11-3, 1-6-3 4-12-1, 4-13-8, JP1,2:DROPOUT 8ignal se1 Jumper •••••• 2-11-3 4-13-10CA203H) JP3: DROPOUT Test Jumper •••••••••••...
  • Page 135 TestlUpper •••••••••••••••••••••• 2-11-8, 4-12-1, 4-13-8 Test-I.. •••••• • • •• • •• 2-11-11, 4-14-1, TestlLower ••••••••••••••••••• 2-11-8, 4-12-1, 4-13-8 4-14-2 ••••••• 2-11-11, 4-14-1, Reset... ••••• • •••• 2-11-S, 4-13-1, 4-14-1 Test •••••••••••••••••••••••••••• 2-11-S, 4-12-1, 4-13-S 4-14-2(Test-1 "5"), EDT ~P: ON/OFF •••••••••••••• 2-11-8, 1-6-3, 4-14-3 4-13-10 (A028H)
  • Page 136 A,B,C,D,E,F,G,H,I: Audio OUtput IITpedance se1 •••••••••• 2-11-14 JPI0l,102: Audio-l Input IITpedance sel ••••••••• 2-11-14 JP201,202: Audio-2 Input IITpedance .2-11-14 JP~Ol,302: Audio-3 Input IITpedance 8el ••••••••• 2-11-14 JP401,402: Audio-4 Input IITpedance 2-11-14 K: Audio-l/2/3/4 Inp..1t I ITpedance 2-11-14 JPI03,104,10S,106: Audio-l Input Level .2-11-14 JP203,204,20S,206: Audio-2 Input Level se1 •••••••••••••...
  • Page 137 2-11-4. DM-25 Board 2-11-5. MD-14 Board...
  • Page 138 Board NTSC,PAL-M Model PRESET VIDEO/SYNC VIDEO/SYNC VIDE VIDE VIDEO SYNC VIDE None PAL,SECAM Model 81-1 EDIT PRST KEY PRESET MODE 8EL SIMUL VIDEO A4/SYNC CHANNEL 1VNC Push VIDEO/SYNC 1'VNC Push VIDEO/SYNC )I'F Push VIDEO Push VIDEO Push VIDEO/A4 ---- Push VIDEO/A4 SYNC Push...
  • Page 140 Board...
  • Page 142 Board...
  • Page 143 Board Board...
  • Page 144 DD DD DD DD DD DD DD DD DD DD...
  • Page 145 lOkn CH-4 CH-4...
  • Page 146 r> ..
  • Page 147 NOTES ON BVE-5000/P, BVE-3000/P OPERATION BVH-200 /2180 ..NTSC/PM SW2&4 SW3&5 OFF(orON*l) OFF (orON*l)
  • Page 152 RIP.
  • Page 153 HEAD PROJECTION CHECK AND usn,...
  • Page 156 REPLACEMENT HEAD ASSEM...
  • Page 159 3-7. SLIP RING AND BRUSH CLEANING 3-7-1. Cleaning of Ring and Brush AND REPLACEMENT model)
  • Page 160 C'.c>f"~1"'''~,""...
  • Page 164 f-.,rl,nf·-'''''''...
  • Page 165 3-9-1. S Reel Motor Replacement...
  • Page 169 ICW).
  • Page 170 3-9-2. T Reel Motor Replacement...
  • Page 172 <:lr>r>Ar,rh..-"rr...
  • Page 174 ?""\~C'1T1n,r\...
  • Page 176 1""\11C'h1~n...
  • Page 177 REPLACEMENT OF THE...
  • Page 182 CAPSTAN MOTOR REPLACEMENT...
  • Page 184 "B".
  • Page 186 PINCH SOLENOID...
  • Page 187 3-20. AUDIO/CTL R/P HEAD REPLACEMENT (i)1~ «> OAmm)
  • Page 188 AUDIO/CTL MONITOR HEAD REPLACEMENT i:P ~...
  • Page 189 3-22. AUDIO/CTL ERASE HEAD REPLACEMENT...
  • Page 190 Clll@...
  • Page 192 3-24-10. Audio/CTL 3-24-12. VIS...
  • Page 193 Path Adjustment &...
  • Page 199 3-24-3. Tape Tension Adjustment...
  • Page 200 Tape...
  • Page 202 'LI' ...."' ..i- ... nr-IT· ..""...
  • Page 208 e @@ @@@Oo usee, usee, +1-O.75H, usee.
  • Page 209 usee. usee.
  • Page 210 Preliminary Information ~--t§ §J 635}lsec 115}lsec 70}lsec 100}lsec 550}lsec 70}lsec...
  • Page 211 RIP. usee...
  • Page 212 usee, usee.
  • Page 213 3-24-9. Audio/CTL RIP Head Adjustment...
  • Page 214 rdr-.,f"'Ir""'1("H~...
  • Page 215 <,z;r"C)'...
  • Page 216 Head...
  • Page 217 ::::L...
  • Page 218 .---"J G--vG...
  • Page 222 LJ'-JI-..'...
  • Page 230 4-3-2. Voltage Indication Plate 0::: 0::: 1111 IIII CN921n IIII 1111 1111 L .. CN92SU r-...IL- IIII 927: 11/1 II II CN924 PROTECTOR DCN922 11 11 Illl II II CN925 II II II :: CN931 4-19 BVH-2000( IC) 12180( IC) 12500(...
  • Page 231 4-3-4. Primary Circuit & Electric Shock FV-02 BOARD (solder side) AC-39 BOARD (solder side) PRIMARY PRIMARY >- « BVH-2000(U/C)/2180(U/C)/2500(U/C)
  • Page 232 HOT-COLD (GND) -12V) +12V "'-=~"'-II"L:>' -19V (for -12V pre-drive) CN928, +250V (for DT) CN926,10-8 AC-39 CN926, -250V (for DT) +13V (for solenoids) CN923, CN930, +13V (for fans) -48V (for fluorescent display) CN926, AC-39 AC-39 4-3-8. ieu] BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM & BVH-2500(U/C)/P...
  • Page 233 4-5. NOTES ON REPAIR 4-4. EXTRACTING/INSERTING PLUG-IN PARTS BOARDS BOARDLABEL EJECT LEVER---,----l'\.. BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 234 4-6. MAINTENANCE TOOLS/FIXTURES RED (+5V) 4-25 BVH-2000( U/C)/2180( U/C)/2500( U/C)
  • Page 235 "JB-4045" « thickness (rnm) 0.03 0.04 0.08 0.09 O.10 O.11 0.12 0.13 0.14 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.50 0.75 0.80 0.90 1.00 imprinted "T135" imprinted "S85" imprinted "JB-4016" imprinted "JB-312" labeled" JB-4075" BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM 4-26 BVH-2500(U/C)/P...
  • Page 236 1.4, 2.0 or 2.5 mm 0.7 mm 4-27 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH~2500(U/C}/P...
  • Page 237 Carrying Case OPTIONS J-6040-310-A Tension Scale, 500 grams 7-741-100.01 Weight, 200 grams J-6040-320-A Tension Adjustment Tool 7-732-050-10 Sector Gauge, 20 grams J-6041-650-A Tension Arm Bending Tools J-6041-660-A Stop-ring Plier J-6040-070-A Eccentric Screw Driver 4-28(1 ) BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500( U/C) /P...
  • Page 238 IIJB-372" « >: o::i imprinted imprinted "JB-365" "JB-400" BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 240 When playing back this tape, check/adjust the audio fre- quency response the machine that its output level at each frequency is the reference level at kHz plus the CHANNEL calibration level (dB). signal amplitude calibration SYNC CH 3.58 MHz MHz) (reference; BVH-2000(U/C)/2180(U/C)/2500(U/C)
  • Page 241 REC INHIBIT Front Panel LG-02 Board State > Mother board :2;;' TRANSPORT >::IC? '" TAPE "-' I NHIBI T RUNNING OPERATION I'" <f) .::':": ! r--t---' LG-02 -~J-«/- q?C[J-- G)--- LG-02 board M ,022 - 4 BVH-2000(U/C)/PS/PM, BVH-2180( U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 242 4-9. MANUAL OPEN/CLOSE OF MOVABLE GUIDE rnaIlualJy movable > 4-34 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 243 4-10. ERROR MESSAGES 11" BVH-2000(U/C)/PS/PM 4-35 BVH-2180(U/C)/PS/PM...
  • Page 244 Error IC-lH(ROM) ROM Checksum IC-lG (ROM) , ROM Checksum IC-lE(ROM) ROM Checksum IC-lD(ROM) ROM Checksum IC-lC(ROM) ROM Checksum SY-80 BRD Error occures on SY-80 board. IC-2H(CTC) CTC Vertical Interrupt Error Kev/Switch Kev/Switch on SY-79 may be shorted. "OF", BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 246 1nt,prt·:lrp. BVH-2000(U/C)/PS/PM BVH-2180( U/C)/PS/PM...
  • Page 247 2-3. Error/Mode Display by LEOs on R 2 Board) ""4F" > psec BVH-2000(U/C)/PS/PM 4-39 BVH-2180(U/C)/PS/PM...
  • Page 248 (4-12-3. Error/Mode Display LEOs on RL-12 Board) ..LJLJ ..BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 249 4-13. TEST FUNCTIONS OF SYSTEM 4-13-1. Test Mode setting/canceling CONTROL SYSTEM Press PLAY key? YesL..-... BVH-2000(U/C)/PS/PM 4-41 BVH-2180(U/C)/PS/PM...
  • Page 250 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 251 CCW~ 4-13-7. Test Memory Readout BV H-2000( U/C) IPS/PM 4-43...
  • Page 252 4-13-9. Monitor Display of Common Memory 4-13-8. Designation and Test of Memory Address PUSH 51: ·1· } BYTE 52: .0. LOW Example of Display > ND1:SY-79 SYft,79 \ 2 3 xO 2 2 x1 2 1 xO 2 o xO/ \ 2 3 xO 2 1 xO 2 o x1/...
  • Page 253 SHUTTLE ERASE TAPE CONFI CONFI CONFI CONFI A29C MUTE MUTE MUTE MUTE I-HEAD NORM Y/C SEP VID+SYNC ROTARY A29D ERASE MODE + EE INTERNAL INPUT DT REG PB HEAD DT HEAD A29E PB H SEL CHECK ALWAYS BVH-2000( U/C)/PS/PM BVH-2180{U/C)/PS/PM...
  • Page 254 "1". RL-12 Board ERROR T-Ree1 Tension S-Reel Tension. Capstan FG Reel FG 4-46 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 255 (Address A01 HI". HI" S5/SY-80 4-47 BVH-2000(U/C)/PS/PM BVH-2180( U/C) IPS/PM...
  • Page 256 (4-13-10. Contents of Common Memory Data) « "1" "1" BV H-2000( U /C) IPS/PM BVH-2180(U/C)/PS/PM...
  • Page 258 (4-13-10. Contents of Common Memory Data) "!" > BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 260 (4-13-10. Contents of Common Memory Data) "'1" "1". « HI". HI", p"""A. .. '-", .. " .. ,...,.., HI". BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 261 (4-13-10. Contents of Common Memory Data) nlavback HO". "'1" usee. > '"I". HI", HI", REC INHIBIT Switch REC INHIBIT BIT 0 Front Panal LG-02 Board STATUS BVH-2000( U/C)/PS/PM BVH-2180( U/C)/PS/PM...
  • Page 262 (4-13-10. Contents of Common Memory Data) 82-8 J.YJL ..82-8 > 82-1 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 263 1", ""0". "1 ", '''1'', ""I", ""I", > 1", "'I", ""I ". BVH-2000(U/C}/PS/PM BVH-2180( U/C)/PS/PM...
  • Page 264 (4-13-10. Contents of Common Memory Data) "O"~ nl::1Vr)::}CI{ ntavnack « "O~'~ BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 266 (4-14-2. Function of TEST-1 Switch S4/CD-17) & ""1", "C" "0", & & & & & BVH-2000(U/C)/PS/PM 4-58 BVH-2180(U/C)/PS/PM...
  • Page 267 Function of TEST-2 Switch (S5/CO-17) TEST-l "E" TEST-2 "0" & & TEST-2 "E" TEST-2 "4" "E" TEST-2 "C" & & "E" TEST-2 "5" TEST-I "E" TEST-2 "D" & & TEST-I "E" TEST-2 & « 4-4. Function TEST ..3 Switch RL-12 TEST-3 4-59 BVH-2000{U/C)/PS/PM BVH-2180{U/C)/PS/PM...
  • Page 268 (4-14-4. Function of TEST-3 Switch S6/CD-17) STATE OF MOVABLE GUIDE UNDER OPEN CLOSE CLOSE OPEN « & > & CNRA/DNTT VJl ... 4-60 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 270 & & « STATE OF SERVO LOCK CTL is not roduced. 2-FIELD LOCK 4-FIELD LOCK 8-FIELD LOCK NO INPUT (STOP button blinks. B/W SIGNAL SECAM SIGNAL NTSC/PAL/PAL-M SIGNALS BVH-2000(U/C)/PS/PM 4-62 BVH-2180(U/C)/PS/PM...
  • Page 271 SECTION 5 THEORY OF OPERATION GENERAL DEseR >- PROGRAMMABLE FEEDBACK PHASE COMPENSATOR DIGITAL INTERFACE FOR SPEED Sf: BVH-2000( U/C)/PM BVH-2180( U/C)/PM...
  • Page 272 U.lu ..l..l..<t >- S-REEL T-REEL (11.75"MAXl (11.75"MAX) T-TENSION NSOR SYNC PLAY HEAD VIDEO PLAY/DT HEAD BVH-2000( U/C) IPS/PM...
  • Page 273 244.0 mm/sec HEAD HEAD HEAD AUDIO AUDIO 116.63(CTL HEAD DISTANCE) NOTE: DIMENSIONS IN MILLIMETERS. f:~\W:::~*1:::;:;:'c~;{;';:;;"~;~;::#ififi;:i PB SWITCHING PLAYBACK PATTERN POINT RECORDED PATTERN. :3 THE OVERLAPS OF FIELD-:3 4 ON THE VIDEO SYNC TRACKS EQUAL IN FIELD-1 RESPECTIVELY. BVH-2000(J ,U/C)/PM BVH-2180(J,U/C)/PM...
  • Page 274 AUDIO SIGNAL SYSTEM & J...l.l,qJLl.l.Lv.l AP- 06 /1 BOARD BLOCK DIAGRAM BIAS (BE-03 RELAY CONT _--------' (BE -03) AUD-1/2 13 14/CTL MONITOR HEAD AUD -1 12 13/41 CONFI OUT PB CTL OUT (CD, (CD) BIAS _..:..-- (BE-02) RELAY_'""-- ----' (BE-02 NORMAL FW"'--'----- ---' (BE-02...
  • Page 275 BIAS I\,'\I'---.--..J « 6. CTL PB Amplifier >- FREQUENCY RESPONSE OF AUDIO CH-1/2/4 6dB/OCT 30d 8 t.---+----~ 50Hz 1KHz 10.6KHz FREQUENCY RESPONSE OF AUDIO CH-3 - 6dB/ OCT 30dB I---+-----~ 50Hz 1KHz 120KHz AUDIO SIGNAL SYSTEM 5-3-2 BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 276 LA-02 Board . Outline LA- 02 BOARD BLOCK DIAGRAM AUD-3 LINE ~---------:--.< ~~~~~ CONTROL >- AUD- 1 SELECT AUD- SELECT AUD- SELECT AUD - 3 SELECT SUCKUP R-CH MONITOR 3. line Amplifier/Monitor Amplifier 5-3-3 AUDIO SIGNAL SYSTEM BVH-2000( U/C)/PS/PM BVH-2180( U/C)/PS/PM...
  • Page 277 5-3-4. Board Outline & >- FREQUENCY 30Hz 27KHz 4. Monitor Amplifier 3. Playback Amplifier BVH-2000(U/C)/PS/PM AUDIO SIGNAL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 278 5-3-5. AE-03 Board nlavhack 5. Meter Amplifier Recording AUDIO-3/4 < >- Playback Amplifier AUDIO SIGNAL SYSTEM BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 279 (5-3-5. AE-03 Board) 7. AU Crosstalk Canceller (PS-04 Model) 9. Time Code <! crosstauc Canceller 5-3-6 BVH-2000(U/C)/PS/PM AUDIO SIGNAL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 280 5-3-6. BE-02 Board 5. CTL Bias Amplifier <! >- 3. Video/CTL Erase Oscillator (Stationary Head) Bias AUDIO SIGNAL SYSTEM BVH-2000( U /C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 281 1. Outline 3. Relay Timing Controller <{ >- 5-3-8 BVH-2000(U/C)/PS/PM AUDIO SIGNAL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 282 V •• LL•••• >- VIDEO SYSTEM SIGNAL BOARD VIDEO BOARD BOARD ~~-------- ..REC AMP ~BUFFER EE RF BOARD VIDEO VIDEO Il ~ SYNC ERASE HEAD DRUM PLAY VIDEOI.--_-----l~1I PLAY BOARD ________ ~~DYNAMIC TRACKING 5-4-1 BVH-2000(U/C)/PS/PM VIDEO SIGNAL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 283 Board From {VITC GATE 24 VITC CODE ,--~-EE/TAPEIFrom INPUTVIDEO (From VM) GAIN CONT (From >- t-------------~~--------'--_O__O_To -----RF-(V--::)O::"~O~ INPUT VIDEO RF METER SW VIDEO BOARD VIDEO GAIN H-------~1~18UFFER r--~---. CONTROLLE2 VIDEO From SYNC SEP VIDEO SIGNAL SYSTEM 5-4-2 BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 284 (5-4-2. MD-14 Board) Burst level Doubler 4. VITC Inserter 7. FM Modulator 5. Sync Separator r-----VIDEO AMPLlFIER~ ~RV5 ~CV1 CABLE COMPENSATION BVH-2180( U/C)/PS/PM...
  • Page 285 (5-4-2. MD-14 Board) 8. RF Pedestal Clamper From Modulator Modulotor « BURST GATE L..-.- __ ---I IC29-12 >- IC31-8 MOD. OUT FREQ. SAMPLING OSC FREQ. SAMPLING 9. Video/Sync RF Amplifier 5-4-4 VIDEO SIGNAL SYSTEM BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 286 RIP DP(V) PLAY DP(V) -""O-----.J.-D. PLAY VIDEO RF PLAY SYNC RF VIDEO RF-+o----.J.-D' P B R F RIP SYNC RF SPEED LEVEL BURST LEVEL ..-.---------------+------------..J.-...I-..l"'O----RF 1---<I.---------f------------t--I---iI-<:l- RF LEVEL DO OUT o<">-- __ DO OUT BVH-2000( U/C) IPS/PM VIDEO SIGNAL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 287 (5-4-3. EQ-02 Board) Compensator 6. Dropout Detector 3. PB RF DP Compensator -rptr1cr,rrp-rl:lhllp « 4. Equalizer Controller >- -t ... 5-4-6 BVH-2000(U/C)/PS/PM VIDEO SIGNAL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 288 5-4-4. DM.. 2 5 Board 1. Outline a::: WHITE REF SW 2. FM Demodulator 3. Pedestal Clamper BVH-2180(U/C)/PS/PM...
  • Page 289 5. Burst Level :SUt)DrE~SSC)r 8. PB H, PB Detector usee >- PB V / PB H SEPARATOR OEMOO VIDEO TP12 P8 SYNC IC40- 5(0) IC4E- IC40-13(0) IC58-11 IC58- IC48-13(0) IC4A-5(0) IC4C-5(0) TP10 PB H Level Detector 5-4-8 BVH-2000(U/C)/PS/PM VIDEO SIGNAL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 290 CONTROL 1O,CN657 4,CN658 WFM CTL RF ENV CN657,12 CN657,1O SPARE-~~-----~-__+_-__+------~ CN654,8 DEMOD OUT2 CN654,1 8,CN655 VIDEOOUT2 6,CN655 DEMOD TBC OUT-2(NON COMP)--~---------------~ .. -~KH 1,CN655 .._-~~ CN654,6 6,CN653 CN652,4 75fl CN-37BOARD ON/OFF CN-37 BOARD BVH-2000{U/C)/PS/PM 5-4-9 VIDEO SIGNAL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 291 (5-4-6. VM-01 Board) 4. Pedestal Clamper 2. Monitor Selector 5. Character Inserter 3. Sync Separator SL-07/08/09 HEAD DRUM CN271 CN272 CN291 -0-- ..ST GAUGE '--y---I >- FROM BOARD « FROM BOARD 5-4-10 BVH-2000( U/C)/PS/PM VIDEO SIGNAL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 292 5-5-2. Principle of Arbitrary Playback "A" . Slant Compensation ± DYNAMIC TRACKING SYSTEM BVH-2000( U/C) IPS/PM BVH-2180(U/C)/PS/PM...
  • Page 293 (5-5-2. Principle of Arbitrary Playback) 2. Tracking Control Recorded Track Head Trace without Tracking correction. (Head off-track Wobbling) « >- Head Trace with Track i ng Correction (Head off-track Wobbling) HEAD PB RF SIGNAL DYNAMIC TRACKING SYSTEM 5-5-2 BV H-2000 (U /C) IPS/PM BVH-2180(U/C)/PS/PM...
  • Page 294 TRACKING AND HEAD JUMP IN ARBITRARY PLAYBACK Head trace when the Tracklnoerror Head trace when the DT Headtrace tope is stoppedCSTILL). Ispeed Is 1.2 x normal. DT HEAD TRACKING ERROR VOLTAGE (BIMORPH DRIVING VOLTAGE)@ <D BVH-2000(U/C)/PS/PM 5-5-3 DYNAMIC TRACKING SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 295 5-5-3. DT-04 Board (DT-05 Board in PS model) 2. FHX Doubler 1. Outline of Digital Trace Circuit : FHX IC5K-5 IC5K-13 IC 5J 2FHX TRACK/lI.SH TRACK/ISH TRACK/l8.SH TRACK/22H BVH-2000(U/C)/PS/PM DYNAMIC TRACKING SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 296 (5-5-3. DT-04/-05 Board) Head Movement Detector OFF" HEAD DETECTOR MOVEMENT fC1P-3:FfLT IC1P-1 >- IC3P-9; IC4-0-11:1NTEG _ -...;.., ---' PBVX2 DETECTOR ~IC3M-13 ~IC3M-5 @IC3N-a ®IC3-0-13 IC3-0-5 RESET BY 5-5-5 BV H-2000 (U /C) IPS/PM DYNAMIC TRACKING SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 297 (5-5-3. DT -04/-05 Board) 8. V Sync In-phase Detector V SYNC INPHASE DETECTOR IC51'5H FHXITBCI >- ~"-------~VPULSE PBVX2 IC4-0-11 INTEG OFF IC31-3 : 2FHX ® IC31-5 IC31-2: IC41-3: PBVX2 :~tlt~~ ® IC41- 1 ® IC3J-5: 0 IC3J-12:Q ® IC5H-9:QO <D IC4H-11 IC41-13:0 ®...
  • Page 298 DT ON/OFF CONTROLLER TAPE DIRECTION (RL) --~~ r-----------+ (RLJ DT ~ "X}-e---------.. DT ~ DRUM LOCK (CD) DT HEAD SEL OFF TAPE IC4M.5L.4-~ lDRUM LOCK, DT·OFFTAPE CAP LOCK CAP LOCK (CD) FIELD PULSE ICSN) 5-5-7 DYNAMIC TRACKING SYSTEM BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 299 (IC50-6) '-_J 12. V Pulse Generator V PULSE GENERATOR r-..,..-- ~ ~C~;E LL--.J ---~I PBVX:IC5C-5 *IC5E-2 IC5E-6 ,-__ RESET PULSE:IC3F-12 IC3F-5 JUMP DATA LATCH IC4F-12 IC4F-13 IC4L-6 IC3F-5 WOBBLING STOP IC4L-4 NOTE: PALl SECAM 5-5-8 DYNAMIC TRACKING SYSTEM BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 300 (5-5-3. DT-04/-05 Board) SYNC NTERVAL COUNTER EX. TAPE SPEED=lX NORMAL LOAD IC2B- 12 >- COUNT PULSE IC5D-13 BRW10UT IC3A-12 Interval "",t'Y"I r\c:.rc:.f'r\Y" 5-5-9 DYNAMIC TRACKING SYSTEM BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 301 (5-5-3. DT-04/-05 Board) 15. V Sync Phase Detector Jump Signal Generator (il¢ ) JUMP SIGNAL !--o""'K>--I-H----·::TEGRATOR A,O.t SLOPE ERROR V SYNC PHASE DETECTOR 18. Slope Error Generator REF ADV V STA RT PBVX IC5C-6 UE'IC5E-6) >- IC3B- 3 L\¢ L\f, Adder QrblltrQrU SLOW:...
  • Page 302 (5-5-3. DT-04/-05 Board) Generator WOBBLING SIGNAL GENERATOR WOBBLING STOP StG IC3H ® WOBBLING >- WOBBLING CK 2 IC3H-4 ®fCO:~:~NG STOP SIG. @)IC2H-6 IC1H-l ®WOBBLING bunorph Af', ERATOR JUMP SIGNAL TRACKING 5-5-11 DYNAMIC TRACKING SYSTEM BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 303 } Ci1 1e21 JUMP INTEGRATOR ERROR ®ST GAUGE G)INTEGRATOR ®ST GAUGE ®FILT 22. Tracking Error Detector TRACKING ERROR DETECTOR FILT ST-~- ..IC2K -..--------------l-.l RF ENVELOPE (From Board) .._-~ PB H (SAMPLING PULSE) 5-5-12 BVH-2000(U/C)/PS/PM DYNAMIC TRACKING SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 304 NUMBER OF PULSE GENERATOR COLOR INFORMATION SIGNAL ± 2TRACK JUMP -1: TP7 ®2FHX IC3K-13 PBVX @IC20-5 IC2Q-7 @IC2Q-15 --CK INHI IC2Q ®PBVX..---~ 2CK SHIFT (D2FHX CK 3CK SHIFT JUMP STATUS-A, B ,C ® 30A: COLOR INF 5-5-13 DYNAMIC TRACKING SYSTEM BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 306 5-6. SYSTEM CONTROL SYSTEM 5-6-1 Outline of Board 1 CPU <! ¢: >- SYSTEM CONTROL BLOCK DIAGRAM 5-6-1 SYSTEM CONTROL SYSTEM BVH-2000( U/C) IPS/PM BVH-2180(U/C)/PS/PM...
  • Page 307 (5-6-2. Outline of SY-79 Board) RAMs 3. SIO >- SY-79 BOARD BLOCK DIAGRAM IC2L ~~:..R20M ,------------1( REM- FFXX FE X X CONTROL PANEL 5-6-2 BVH-2000(U/C)/PS/PM SYSTEM CONTROL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 308 5-6-3. Outline of SY-80 Board 3. ROMs 4. RAM <l >- h ..r f"r ..• SY-80BOARD BLOCK DIAGRAM IC4H (FROM CONTROL PANEL) (FROM TIMER PULSE (FROM TAPE DIRECTlC~ (FROM DATA ADDRESS TO/FROM ,.------.,--r---v LG/SVI .---------1 LG/SV I TC BVH-2180(U/C)/PS/PM...
  • Page 309 F106 SYNC/A4 PORT OUTPUT (F1XX) PORT EE I TAPE ADDRESS DECODER Ai,2 ,3,4 F100 INPUT PORT --_11IIoI IC3E'~3'3G ERASE ~~~~O >- (F1XXI SYNC VIDEO t--t-------------------4---...J IC5G RELAY t--~-----------------4---~l ~~~~ AIJV --.-.0 TEST 5-6-4 BVH-2000( U/C) IPS/PM SYSTEM CONTROL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 310 5-6-5. Control Panels BKH-2011, 2012, 201 1. Outline mll!Il-l-"lfl!~ ... r Control Block nrr ..nr\rt1An':ltt:> >- INPUT CONTROL BLOCK IC48 '-------.. TO S'\'-80 5-6-5 SYSTEM CONTROL SYSTEM BVH-2000(U/C)/PS/PM BVH-2180( U/C)/PS/PM...
  • Page 311 IN CHK INPUT TAPE IN CHK FE04H PB H PB H INPUT TAPE IN CHK ---- ---- FE05K ----' ---- FE06K >- ---- ---- FEO?H HIGH A OUT A IN V IN V OUT 5-6-6 BVH-2000(U/C)/PS/PM SYSTEM CONTROL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 312 (5-6-5. Control Panel) 3. Display Control Block >- DISPLAY CONTROL BLOCK FOR BKH-2013 FROM SY-79 5-6-7 SYSTEM CONTROL SYSTEM BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 313 <D ® CCJ IN (-) CCJ IN CCJ OUT (-) CCJ OUT TAPE DIRECTION +12V OUT -12V OUT >- 12V) (± +SV OUT GND (+5V) CTL OUT CTL OUT (G) REMOTE OUT ® 8f.lsec 5-6-8 BVH-2000(U/C)/PS/PM SYSTEM CONTROL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 314 (5-6-6. Outline of Remote Control) 2. REMOTE ..2 connectors 33N34A 33N34A, a... >- 3. REMOTE ..3 Connector BVH-2000( U/C)/PS/PM SYSTEM CONTROL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 315 (5-6-6. Outline of Remote Control) 5-6-10 BVH-2000(U/C)/PS/PM SYSTEM CONTROL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 316 1. Outline 13). 5-6-11 BVH-2000(U/C)/PS/PM SYSTEM CONTROL SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 317 (5-6-7. Common Memory) COMMON MEMORY SY-80 SY-79 OATA 8US -"OATA --+--fiI--+---O SY -79 AORS BUS SY- 80 AORS BUS -.;....-...0 5-6-12 SYSTEM CONTROL SYSTEM BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 318 5-6-8. Interface 11~r1"""''''<:llr"",n SYSTEM CONTROL /SERVO INTERFACE ~VIDEO HEADS TENS DETECTORS ---L CAPSTAN MOTOR ~~----.DRUM MOTOR 1. Control Panel/SY-79 Interface 2. SY-79/Common Memory Interface SYSTEM CONTROL SYSTEM 5-6-13 BVH-2000(U!C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 319 3. SY-80/ Servo Interface PRESET-Oil UNIVERSAL DATA CALL >- SY-80 TO SV-43 INTERFACE DATA FORMAT ADRS F400H F401H F402H SENSE COMMAND SENSE COMMAND REQUESTED STATUS STATUS-l STATUS-2 STATUS-3 STATUS-4 STATUS-5 STATUS-6 STATUS-7 5-6-14 SYSTEM CONTROL SYSTEM BVH-2000( U/C)/PS/PM BVH-2180( U/C)/PS/PM...
  • Page 320 VIDEO SERVO REF SEL:~:EXTREF REC: VIDEO O-NOT HEAD SEL: ~::~:yH~::D PRESET: ASSEM O:~~f HEAD MOOR: ~.l.SHEAD '----- INSERT PRESET:~:~~F ADVANCE: ~:~~;CD- ~--------- CONFIDENCE: ~--------- MOVABLEGUIDE·%-CLOSE -l.-OPEN '----------------CF MODE SEL: :~:~~;~:~~7LOCK 10-4-FIELD LOCK ll-e-FIELD lOCK SYSTEM CONTROL SYSTEM BVH-2000(U/C)/PS/PM 5-6-15 BVH-2180(U/C)/PS/PM...
  • Page 321 ADDRESS LABEL BITS A008H TMCO t-----+---t----L-~--L--.---'-_-L..-_---'----'--_i A009H TMCO+l COUNTER NUMBER( 24H ) AOOAH TMCl AOOBH TI1Cl+l COUNTER NUMBER( 25" ) AOOD TMC2+1 COUNTER NUMBER( 27H ) AOOE TMC3 HOLD AOOFH TI1C3+l COUNTER NUMBER( 26M) BVH-2000(U/C)/PS/PM SYSTEM CONTROL SYSTEM 5-6-1 BVH-2180(U/C)/PS/PM...
  • Page 322 (5-6-9. System Control/TC Board Interface) Read t-ha· 'CT~<rt1"'~ TIMER DISPLAY <! ADDRESS BITS >- 000: READER 010: USER'S READER 011: TIHER-2 101: GENERATOR 110: VITC USER'S READER 5-6-1 SYSTEM CONTROL SYSTEM BVH-2000(U/C)/PS/PM B VH-2180( U /C) IPS/PM...
  • Page 324 5-7. SERVO SYSTEM 5-7-1. Outline of Servo System CARD RACK TAPE TRANSPORT BLOCK: <i >- PFPC PROGRAMMABLE FEEDBACK PHASE COMPENSATOR DIGIT AL INiE RFACE FOR SPEED HV() BVH-2000( U/C)/PS/PM SERVO BVH-2180( U/C)/PS/PM...
  • Page 325 (5-7-1. Outline of Servo System) DRUM SERVO SYSTEM PB V CAPSTAN SERVO SYSTEM REEL SERVO SYSTEM « >- SERVO SYSTEM 5-7-2 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 326 Outline of Drum DRUM SERVO SYSTEM NTSC,PAL-M: 4555Hz 3800Hz PAL/SECAM SERVO SYSTEM INTERFACE HARD WARE HARD HOST <! 0... >- 5-7-3 BVH-2000(U/C)/PS/PM SERVO SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 327 5-7-3. Outline of Capstan Servo System CAPSTAN SERVO SYSTEM REF CTLl.- GEN. SYNC 'TRACKING: 'CONTROl _ ... _.J « HARD WARE - -- HARD CPU HOST CPU >- SERVO SYSTEM INTERFACE 5-7-4 BVH-2000(U/C)/PS/PM SERVO SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 328 5..7.. 4 . Outline of Reel Servo REEL SERVO SYSTEM HARDWARE HARD HOST 5-7-5 SERVO SYSTEM BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 329 5-7-5. CD-17 Board CAPSTAN SERVO SYSTEM DRUM SERVO SYSTEM OTHERS >- PULSE CF PULSE SERVO SYSTEM 5-7-6 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 330 6A ; CAP FG A( X ) 7 A; CAP FG 8( X ) TP6; FG A lIC9-4) TP7; FG 8 (IC9-9) IC19-11 IC7-13 IC18 - SAMPLING PULSE ICl8 ;SAMPLING PULSE IC 7-5 IC5-7;TRAPE ; CAPSTAN 5-7-7 SERVO SYSTEM BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 331 « >- FG A IC4N-6 tC4C-13 CAP VELO REQUEST TAPE SPEED~ 0.8 IC51-10 CAP VELO GATE TP16 TAPE SPEED=0.8toO.6 I C51-10 CAP VELO GATE PULSE TP16 TAPE SPEED:§:"0.6 IC51-10 CAP VELO GATE PULSE TP16 5-7-8 BVH-2000( U/C)/PS/PM SERVO SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 332 (5-7-5. CD-17 Board) Circuits <l >- CTL REC/PB CAP 4FG ------------+------- ..~ I----- .... (lC19-61 PULSE TAPE TP19 5-7-9 BVH-2000( U/C)/PS/PM SERVO SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 333 9A:DRUM TP12: FG A TP13:TTL FG B IC19 - 8 ~r__~:-------r---~---__:_--- I C 17 - 4 SAMPLING PULSE IC17 - 5 I C 16 - 7 : T RAPE ________________ y~14A:DRUM MDA(Xl 288: DRUM 5-7-10 BVH-2000( U/C)/PS/PM SERVO SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 334 (5-7-5. CD-17 Board) 8. PG Phase Detection 6. Drum Rotation Detection TP12 TTL FG A PG PHASE DET TP13 TTL FG B "L"-------- IC4M-13 328: IC4C-14 : PG PHASE REO <l IC1C-4: PG PHASE ACK PHASE GATE >- 7. Drum PG Delay 328: 20A: PG PULSE...
  • Page 335 Converter for Analog Voltage Control « IC2F:WR ADDR SOIA SELECT I ON OF A OUTPUT DATA BIT-O S--REEL T-REEL DRUM VELO CONT f------ CAPSTAN VELO CONT SPARE SPARE-l PLAY S - REEL TENS I ON CONT SPARE-2 5-7-12 SERVO SYSTEM BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 336 (5-7-6. R L-12 Board) 3. Reel Tension AC Feedback loop « >- BVH-2000(U/C)/PS/PM SERVO SYSTEM BVH-2180( U/C)/PS/PM...
  • Page 337 T-REEL POWER T-REEL MOA "B" S-REEL MDA "B" "u" SKEW CONTROL "U" TRACKING CONTROL "B" DRUM MDA CAPSTAN "B" SPARE-·!(Not "B" used) SPARE-2(Not "B" used) SPARE-3 (Not used) ANA BUS (CD-17 MPX) "U/B" "U" 5-7-14 SERVO SYSTEM BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 338 (5-7-6. R L-12 Board) 5. SiT Reels and Timer Roller Rotational 6. Interrupt Generator Direction Detection : S-REEL FG 8 T-REEL FG 8 TP3: S- REEL FG A TP2: T-REEL FG A IC1B(Q): FWD \ 5-7-1 BVH-2000(U/C)/PS/PM SERVO SYSTEM BVH-2180( U/C)/PS/PM...
  • Page 339 5-7-7. SR-15 Board Outline REF SYNC Separator « BURST SEPARATOR >- REF H ( IC3K-7) ..__------------- REF SYNC TP23 (IC3M-3 BURST I C4J-1 ( IC9-5) IC31-13 1 C4J-3 TP25 IC4K-10 SEP'ED IC3H-ll (IC3H-8) (lC4K-7 3 -FIELD TP20 REF H 2,4 -FIELD REF FRAME SEP 2,4-FIElD 1,3 -F I ElD...
  • Page 340 TP16 "5070H" I TP16 « IC4E-6 >- '-_. C F PHASE DETECTOR ( PAL) IC9-1 ("--------- REF SYNC IC3M-3 IC9-5 IC3F- 10(05) IC3F- 12(07) TPI4 TP13 IC2G- 6 IC2C-7 IC4E -6 -rnl111t-H"",la'va ... 01-GATE 5-7-17 SERVO SYSTEM BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 341 REF SYNC I C3M-3 BURST FLAG T P2"S : I C 3 I -S IC14-4 IC4H- 8 IC4G -IS(CO) IC4F-6 IC3E- FIELD-3 REF SYNC IC3M-3 BURST FLAG TP2S: IC31-S I C14-4 IC4H-8 IC4G-1S(CO) IC4F-6 IC3E-13 5-7-1 BVH-2000(U/C)/PS/PM SERVO SYSTEM BVH-2180(U/C)/PS/PM...
  • Page 342 (5-7-7. SR-15 Board) "LALT' <! >- BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 343 In~ ..n\llF' IC28 IC1E IC1F IC1H IC 11 HOST (l801 >- 2000 - 2FFFH ADDRESS DECODER MAIN PROGRAM CONTROL MODE CONTROL REEL SERVO OFFF 3000 J..------------4 8FFF '-----------' SERVO SYSTEM BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 345 1400 - 15FF DECODER lOVER TIME IC3F ~11600 - 17FFr IC41 ADDRESS It:f~RMAL'" DECODER -flo- ---1 OVER COUNT DETECTOR IC3N >- MREO RESET-+-t ADDRESS DECODER lCOU[lT ICOUNT 0,1,.3 4,5,6,7 IC3E ADDRESS ‫-ן‬ DECODER _l1000-17FF lloo-lFFFr .)t\.J BVH-2000( U/C)/PS/PM SERVO SYSTEM 5-7-22 BVH-2180(U/C)/PS/PM...
  • Page 346 DATA SV-43:SY-80 IC3P,3Q 4-BYTE --It---------~ ¢ SVS>SY 00-07 12.5MHzl INTERFACE 55 RO AO A1 AO A1 MEMORY IC4P,4Q 4-BYTE SV¢::JSY INTERFACE >- 55 WR MEMORY ~_}~E/CD!SR RL I/O SERVO CD,SR I/O SV I/O EXT I/O SERVO SYSTEM 5-7-23 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 347 (5-7-8. SV-43 Board) 8. I/O Port of the HOST PORT OUTPUT "1" ""1". « >- 1" "I", BVH-2000(U/C)/PS/PM SERVO SYSTEM 5-7-24 BVH-2180( U/C)/PS/PM...
  • Page 348 (5-7-8. SV-43 Board) I/O Port of the HARD CPU nrr'HTrQ m T', "I" « "1" BVH-2000(U/C)/PS/PM SERVO BVH-2180(U/C)/PS/PM...
  • Page 349 (5-7-8. SV-43 Board) OUTPUT PORT "1" >- SERVO SYSTEM BVH-2000(U/C)/PS/PM 5-7-26 BVH-2180(U/C)/PS/PM...
  • Page 350 Henlacernent 6-1. White Blue BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM BVH-2500( U/C)/P...
  • Page 351 TIMER ROLLER UPPER FLANGE MAGNET RING DME HOLDER ASSEMBLY SET SCREW 4x6 PIECE (1TURNING PREVENTION BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 352 6-3. REEL MOTOR ASSY REPLACEMENT 6-3-1. S Reel Motor Assy Replacement KNOB tanornzeo <r: BVH-2000(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 353 S REEL MOTOR ASSEMBLY PSW4x16 Fig. 6-4. S Reel Motor Assembly Replacement HEIGHT ADJUSTMENT SCREW (at the inside of this hole) Fig. 6-5. S Reel Table Height Adjustment BVH-2000(U/C)/PS/PM BVH-2180( U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 354 CD-17 BOARD §S4 (TEST 1) 57 (ENTRY) RL-12 BOARD 500/0. 50°,10. TP14 RL-12 BOARD RV2) TP14 RV4) Fig. 6-6. S Reel Motor FG Duty Cycle Adjustment BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 355 SV-43 BOARD co ~ ND1 ~ CF RV1 /RA-05 BOARD ..,..,,,"',, ...v"""n ..IliftlA t'onA 'lI:Tnll'Bnrl RA-05 BOARD @~RV1 & (£J SY-80 BOARD S3 (RESET) Fig. S Reel Motor Torque Adjustment BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 356 SV-43 BOARD HA", (hexa-decimal display) Cylinder TEST 2 TEST direction surface treatment switch switch tape running (reel position position "'1""'\+"'+ (CW) (14 to 1A) Fig. 6-8. ICW) REV (CW) BRAKE FWD (CCW) BRAKE TORQUE ADJ. TORQUE ADJ. BVH-2000( U/C)/PS/PM BVH-2500( U/C}/P...
  • Page 357 6.. 3 .. 2 . Reel Motor Replacement PSW4x16 <{ T REEL MOTOR ASSEMBLY COVER RK6x12 PSW4x16 Fig. 6-10. BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 358 REEL WASHER COVER IGHT ADJ. SCREW inside of this hole) CD-l BOARD <t ..J L-12 BOARD BVH-2000(U/C)/PS/PM 80(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 359 SV-43 BOARD co ~ ND1 ~ CF RV6/RA-05 BOARD RA-05 BOARD @@@ @ « «i SY-80 BOARD S3 (RESET) Fig. 6-13. T Reel Motor Torque Adjustment BVH-2000(U/C)/PS/PM 6-10 BVH-2180( U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 360 (reel rotation) position position Ni-plated anodized (CW) (46 to 54) (50 to 5E) (CCW) (14 to 1A) (07 to 1D) Fig. 6-14. Brake Torque ADJUSTMENT SPRING (FWD/CCW) ADJUSTMENT SPRING (REV/CW) Increase Decrease Fig. 6-15. T Reel Brake Torque Adjustment BVH-2000(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 361 6-4. LOWER DR MASSY REPLACEMENT Preliminary Information RP-09 BOARD THREADING MOTOR MOVABLE GUIDE ASSY ENTRANCE SLANT GUIDE ASSEMBLY EXIT SLANT GUIDE ASSEMBLY III\"~~~ SCREW~,1I~~ LOWER DRUM ASSEMBLY Fig. 6-1'6. 6-12 B V H -2000 (U /C) IPS/PM BVH-2180(U/C)/PS/PM...
  • Page 362 0... R PIN RP-09 BOARD Hole for passage of CN 112 ECCENTRIC STOPPER Drum BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 363 WHITE PROBE ZERO SCREW DRIVER Drum Installation and 1-I"",("o ... , +rlll"".+'\1 3!Lm !Lm. BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 364 Fig. 6-19. Gap Confirmation BOARD © ©D S4 (TEST « S5 (TEST 2) (ENTRY) <.0 BOARD \')0 6-20. Drum Speed Adjustment BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 365 6-5. GUIDE POST REPLACEMENT 24-1. 24-1. <D Fig. 6-21. Heolacernent 6-16 B V H -2000 (U /C) IPS/PM BVH-2180(U/C)/PS/PM...
  • Page 366 6-6. REPLACEMENT OF SLANT GUIDE ENTS (For your THREADING MOTOR PSW2.6x FENCE . Replacement of Entrance FLANGE FIXING SCREW Guide...
  • Page 367 FLANGE FIXING SCREW top of detail b the guide flange FLANGE PUSHING SCREW SLANT ADJUSTMENT SCREW <t GUIDE SIDE C SIDE 0 HEIGHT ADJUSTMENT SCREW SIDE A SLANT SIDE B ADJUSTMENT SCREW BVH-2000(U/C)/PS/PM 6-18 BVH-2180(U/C)/PS/PM BVH-2500( U/C)/P...
  • Page 368 TAPER GUIDE THICKNESS GAUGE C3x12 ENTRANCE SLANT GUIDE ASSEMBLY ± THICKNESS GAUGE FENCE srnootntv. SET SCREW UPPER DRUM UNIT: mm Entrance Slant Guide Position BVH-2000(U/C)/PS/PM 80(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 369 FIXJNG SCREW <! ..J FLANGE PUSHING SCREW <0 ACCESSORY SCREW guide flange. NOTE: Take Fig. 6-30. Assembly of Exit Guide Flange and Guide Post W2.6 GUIDE BRACKET Fig. 6-31. Reassembly of Exit Guide Post and Guide BVH-2000(U/C)/PS/PM 6-20 BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 372 RV14 •• 13-24 RV28 A3 REC EO Control •• .12-14 •• 13-23 RV5... 13-23 RV29 A3 REC LEVEL Control RV16 •••• 13-24 RV17 •••• 13-20 RV32 ••• 12-18 .13-30-6 "" ..' '-'lIIl RV37 •••• 13-30-4 RV9 ••••• 13-25 BVH-2000(U/C)/PM BVH-2180(U/C)/PM...
  • Page 373 RV13 •••• "-12,12-5 LV2 ••••• 12-11 11-15-1 RV 14 •••• 11-7 •• 3-24-7 10-7 15-2 RV16 Section RV17 •••• 1'-9 A1 BIAS LEVEL ADJ Control •• 12-11 A2 BIAS LEVEL ADJ Control •• 12-11 BIAS LEVEL ADJ Control 2-11 BVH-2000(U/C)/PM BVH-2180(U/C)/PM...
  • Page 374 RV9 •••••••••••••••••••••••••••••• 12-3 RV102 ••• 12-1 RV302 ••• 12-1 RV10 AUOIO-2 PB OOntrol ••••••••• 12-4 ••• 13-7 VIDEO LEVEL Control ••••••• 1-4-1 RV3 ••••• 13-3 RV7 ••••• 13-37 RV17 TRACKING COntrol ••••••••••• 1-4-1 RV4 ••••• 13-4 RV8 ••••• 13-38 BVH-2000(U/C)/PM BVH-2180(U/C)/PM...
  • Page 376 OSCILLOSCOPE OSCILLOSCOPE ~~~~EE CH-1 CH-2 SR-15 S2: REF2 ______ SIG. GEN 1410) COMPO VIDEO SYNC OUT BVT-2000 CCY MULTI PLE COMPO CABLE TO TBC TO VTR VIDEO VIDEO TBC IN OUT-1 VECTORSCOPE CH-A WFM OUT ¢REF MONITOR CH-A SYNC BVH-2000(U/C)/2180(U/C)
  • Page 377 Set the positions from 3 to 8 to ON. SG-28 BOARD BOARD NO. 1-600-163-12 or UP NORMAL ADJUST « c:::. c::. '4-1II::J-\ - - - - -l. >' Set the positions from 4 to 8 to ON. BVH-2000( U/C)/2180( U/C)/2500( U/C)
  • Page 378 8-6. Initial Setting of the BVH-2000/2180 8-6-1. Level Control Panel t4)-14 Board METER Sw.. INPUT JP1/2;FREO. OOMPEN Sel •••••••••• JP2 PICTURE MONITOR Sel ••••••••••••• OEMOD WAVEFORM MONITOR Sel..•••• SELECT VIDEO JP3/4;PEAK/SYNC Sel.. ••••••• SYNC(JP4) Sel • • .Depends mode REMOTE/LOCAL Sw.
  • Page 379 ..OFF (+/-12H) Sl-4 •••••••••• '••OFF 59-5; DISPLAY MODE 5w••••••••••• Oepends on usage REM/FIELD/FRAME 5w •••••••• FIELD 59-6; IN PO NT SYNCHRO 5w..OFF • •• • ••• S9-7; SYNCHRO OFF 5w •••••••••••• OFF •••••••••••••••••••••••••• 59-8; TEST DISPLAY Sw..OFF BVH-2000(U/c)/i180(U/C)
  • Page 380 SECTION ER SU P AL GN FV-01 Board TP115 1...1 ~ PA-19 TPl13 CT-38 TP105 ::.::: TP112 ::~ TP111 ::~ TP110 TP116 CT-36-4 Board ST-21 ~ CT-36-4 T P103 TP101 ,..., r: ' &..1 &..1 TP108 TP102 CT-36-1 Board TP104 :~ TP106 ~ CT-36-1 TP107...
  • Page 381 RV1 ~OTP1 TPE1 RV302 RV303 RV301 TP3 TP16 TPE2 TP5 TPE3 OTP17 RV6 ~OTP6 « TPE4 >- TP18 RV8 ~O TPE5 RV10 OTP10 OTPE6 RV11 TP11 RV12 TP12 ~OOOTP23 RV13~ TP13 TP25 TP24 TP26 TP22 TP21 TP20 TP19 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 382 CAUTION: 9-1. SWITCHING REGULATOR OPERATING 9-1-1. Switching Regulator Adjustment Fixture Installation BOARD BOARD EXTENSION CABLE ASSY <t >- BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 383 9-1-1. Switching Regulator Adjustment Fi xture) Installation ~,EXTENSION CABLE ASSY BOARD FIXTURE ...J >- ...J BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 384 Board Settings Y'\PlrtArrnlPfl C'",,""'l1"'1'"\l'!r CN921n CN928U Remove. ~CN924 @OCN922 CN923D CN926 CN92sD CN9290 CONNECTION FV-Ol, CN10l-AC-39,CN307 FV-01, CN102-AC-39,CN305 FV-01, CN103-CN-54,CN4 70 Fv-ot,CN104-AC-39,CN311 >- FV-o " eN105-FC -02,C N603 FV-Ol, CN106-FC -Q2,CN602 FV-01, CN107-VV-01,CN202, 203 B V H-2000 /PS/PM, B V H -2180 ( U /C) IPS/PM BVH-2500(U/C)/P...
  • Page 385 (9-1-2. Board Setti nqs] Board Remove. CN923D CN926 CN925 VV-01,CN201 _AC-39,CN307 VV-Ol ,CN202-FV-Ol,CN1 VV-Ol,CN203-FV-0I,CN107 F V-O 1.CN 102 -AC-39.CN305 FV-Ol,CN1 04 -AC -39.CN 311 -o2f:,N602 F V -01 ,CN1 06 --FV >- BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 386 (9-1-2. Board Settings) exrcnsron swrrcn Remove. cN923D CN925 CN9290 FV-02,CN601 -AC-39,CN308 F V -<)2,CN602 -FV -01 ,CN106 FV-02,CN603-FV-<)1.CN105 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 387 (9-1-2. Board Setti nqs) 9- -3. AC-39 Board Part Replacement CN305 CN311 CN307 CN308 >- BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 388 Standard for Variable Standard Load Output Check POWER UNIT...
  • Page 389 9-1-6. Power Unit Check and Adjustment Procedure « >- 9-10 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 390 CN928 1 - + 20 + 25 CN92sD VOLTAGE INDICATION PLATE Variable Outputs TEST POINT OUTPUT VOLTAGE MAX. 9-1-9. Relay Switching Click Check with CN924 Power ON/OFF CN924 2- CN924 CN924 « >- ...J RY301! AC-39 9-11 BVH-2000(U/C)!PM, BVH-2180(U!C)!PM BVH-2500(U/C)
  • Page 391 ± ± ± ± ± >- 9-12 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 392 & (9-1-12. AC-39 Board Operation Check Adjustment) Adjustment >- 9-13 BVH-2000{U/C)/PS/PM, BVH-2180{U/C)/PS/PM BVH-2500{U/C)/P...
  • Page 393 VV-01 L202 @ - TP205 VV-Ol TP206-205 CD - (j): CT-36-7 TR VH L207 @ - TP213 VV-01 TP212-213 VV-Ol CT-36-7 DR VH VV-01 L212 @-TP220 VV-Ol TP219-220 CT-36-7 CP VH « VV-Ol L217 @-TP225 VV-Ol TP224-225 >- :::J 9-14 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 394 9-1-14. CT-36 (FV-01/FV-02/VV-01) Board operatiOn) Check Adjustment and Adjustment ± 17.5 ± 9-1-4.) <{ >- ± 17.5 1.5V 9-15 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM...
  • Page 395 SYSTEM Hot-Cold OUT Hot-Cold IN : OUT CT-37 CN924 1 : 10 ± CT-37 ± TR VH CN924 DR VH CT-37 CN924 5-10 ± CT-37 6-11 CP VH CN924 >- ® SPEC. +65±2V ± +65±2V +65±2V +33±2V BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 396 CN921 Spec.; CN921 Spec.; hoard >5 BVH-2000(U/C)/PS/PM, BVH-2500(U/C)/P...
  • Page 397 DR VH 5-10 CN924 SR VH VV-01 TP206 -205 +90±4.5V 6-11 CP VH CN924 TR VH VV-01 TP212 -213 +90±4.5V DR VH VV-01 TP219 - 220 +90±4.5V CP VH VV-01 TP224 -225 +47 ±2.5V « >- 9-18 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 398 9-2. PS-14 BOAR OPERATION CHECK 9-2-2. PS-14 Board Check 9-2-1. PS..1 Board Check Procedure uner~ltu1ln PS-14 Board System Overload System Overload >- =:> 9-19 80(U/C)/PS/PM BVH-2500( U/C) /P...
  • Page 399 9-3. PS-14 BOARD (SERIES REGULATOR) ADJUSTMENT 9-3-1. 9-3-2. >- 9-20 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 400 Adjustment -12V Adjustment 9-3-3. 9-3-5. Adjustment 9-3-4..J >- ...J 9-21 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 402 SECTION 10 TAPE SYSTEM ALIGNMENT PATH ADJUSTMENT FLOWCHART ..l >- 0... 0... BVH-2000( U/C)/PS/PM 10-1 BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 403 TAPE PATH CHECK & ADJUSTMENT ® ® SUPPLY REEL TAKE-UP REEL <, <, <, '-- -- GUIDE ROLLER ...J « >- GUIDE POST 1 EXIT SLANT GUIDE BVH-2000( U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 404 AUDIO/CTL MONITOR AUDIO/CTL HEAD ERASE AUDIO/CTL 'SLANT GUIDE HEAD GUIDE POST 1 HEAD IP ROLLER GUIDE POST 3 TAKE-UP REEL TABLE TIMER ROLLER T-TENSION >- e> BVH-2000( U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 405 REEL SHEET HEXAGONAL WRENCH (OPPOSITE SIDE: 2mm) Fig. 10-3-1. GR CAP GUIDE ROLLER GR FLANGE GR FLANGE 10-3-2. <t >- <t GUIDE POST 3 IP ROLLER <t Fig. 10-3-3. 10-4 BVH-2000(U/C)/PS/PM BVH-2500( U/C) /P...
  • Page 406 SETSCREW fLANGE L 10-3-4. SETSCREW 0-3-5. >- 0... FLANGE L Lower. 0... Fig. 10-3-6. 10-5 BVH-2000( U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 407 UPPER FLANGE Lower SET SCREW Fig. 10-3-7. HEIGHT ADJUSTMENT LOWER SCREW FLANGE UPPER FLANGE Fig. 10-3-8. +,.._~ ..« TAPE POSITION MODE SPACER POSITION BEFORE ADJ. >- F·FWD HIGH HIGH A&B Fig. 10-4. Timer Roller Slant Adjustment BVH-2000(U/C)/PS/PM 10-6 BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 408 10-3. TAPE TENSION ADJUSTMENT S ARM ADJUSTMENT WEIGHT 10-3-1. S Side Tape Tension Adjustment Tension Tool RL-12 Board Fig. 10-7. 10-7 BVH-2000( U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 409 POST 10-8. T-Tension Arm Replacement RL-12 BOARD ± TP13 RV13 ± a. With installed T135 TP13 O.03V ± b. With installed T240 RV2/TT-01 BOARD) TP13 1.4V O.15V ± « TT-01 BOARD T-TENSION >- 0... 0... « 0-9. Tension BVH-2000(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 410 10-4. TAPE SPEED ADJUSTMENT CD-17 BOARD RV90@@@O Fig. 10-10. Tape Speed Adjustment UU.I'U.:lI~'-'u. ± >- BVH-2000( U/C)/PS/PM 10-9 BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 411 EQ-02 BOARD (CH-2) (CH-1) VIDEO MIN. LEVEL x 100 ~ 80(%) VIDEO VIDEO MAX. LEVEL (CH-1) SYNC MIN. LEVEL x 100 ~ 70(%) SYNC RF: SYNC MAX. LEVEL (CH-2) THICKNESS GAUGE 0.08-mm-gauge: pass 0.1-mm-gauge: not pass EXIT SLANT GUIDE ASSY GUIDE FLANGE >- BV H-2000( U /C) IPS/PM...
  • Page 412 TAPE EXIT SIDE TAPE ENTRANCE SIDE ® SLANT ADJUSTMENT >- s> ENTRANCE EXIT SLANT « BVH-2000( u/C)/PS/PM BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 413 IO~ 7 TAPE EXIT SIDE TAPE ENTRANCE SIDE -:", .: RF WAVEFORM:: ;::: 100% ;:~:~: 80'" © :::, Flatten the waveform RF WAVEFORM BVH-2000( U/C) IPS/PM BVH-2180( U/C}/PS/PM...
  • Page 414 © Entrance Slant Guide ENTRANCE SLANT GUIDE ASSY TAPER GUIDE « >- Fig. 10-15. Height Adjustment Entrance Slant Guide c::i 10-13 BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 415 TAPE EXIT SIDE TAPE ENTRANCE SIDE © LOCKING SCREW SET SCREW © Fig. 10-16. Height Adjustment of Guide Post 3 and Slant Adjustment of Exit Slant Guide <..9 >- LOCKING SCREW Fig. 10-17. Adjustment of Exit Slant Guide 10-14 BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 416 Tape forced to run onto the guide flange about 1 mm. -.END 10-15 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 417 EQ-02 BOARD HEAD SELECTOR RF WAVEFORM VIDEO MIN. LEVEL 100 ~85 VIDEO MAX. LEVEL Fig. 10-19. Self Record/Playback R F Waveform Check « >- « e:> 10-16 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 418 HEAD No clearance. >- Q... Q... BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 419 CD-17 BOARD TP13 ± usee, VIDEO IN usee. ± VIDEO OUT Adiustrnent 1-11':1\/1"\':11"1/ « >- « « ± usee. BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 420 DEOIN CD-1 BOARD TP15 VIDEO OUT TP13 RV5/CD-17 BOARD PIf.l"h'!U'1(" usee. VIDEO OUT RV6/CD-17 BOARD >- BVH-2000(U/C)/PS/PM 80(U/C)/PS/PM...
  • Page 421 ± PB SWITCHING POINT PB SWITCHING POINT ..J « >- « e:> 70J.,Lsec ~ 100J.,Lsec BVH-2000/2180 550J.,Lsec ~ A ~ 635J.,Lsec 70J.,Lsec ~ 140J.,Lsec BVH-2500 BVH-2000/2180/2500( U/C) 10-20...
  • Page 422 FENCE SETSCREW C SETSCREVV D THICKNESS GAUGE 0.10-mm-gauge: pass FENCE 0.20-mm-gauge: not pass THICKNESS GAUGE 0.08-mm-gauge: pass not pass ~ I -rTlrn-UaIJ,UH' usee usee GUIDE FLANGE >- usee. BVH-2000{ U/C) IPS/PM BVH-2180{U/C)/PS/PM...
  • Page 423 SETSCREW Fig. 10-28. Overlap C Adjustment 0.09 mm or more. usee. >- « Fig. 10-29. Overlap 8 Adjustment BVH-2000(U/C)/PS/PM 10-22 BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 424 ADJUSTMENT RELEASE SCREW FLUCTUATION ADJUSTMENT Azimuth Azimuth Adjustment Check Height Adjustment HEIGHT ADJUSTMENT ADJUSTMENT Fluctuation AZIMUTH ADJUSTMENT SCREW A Check AUDIO/CTL MONITOR HEAD (Note) GUIDE POST 1 >- ~~,,""hr, •• '" FLAT PLATE Note: 0-30. Audio/CTL RIP Head BVH-2000( U/C) IPS/PM BVH-2500(U/C)/P...
  • Page 425 (PHASE DIFFERENCE: WITHIN 5°) 0-31. Audio/CTL RIP Head Azimuth Audio 3 kHz Dp ~ 3 (PHASE DIFFERENCE: WITHIN 30°) 10-32. Audio/CTL RIP Head Azimuth Adjustment Audio AUDIO-10UT <.9 « >- « 0-33. Audio/CTL RIP Head Check « BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 426 10-34. SKEW KNOB RL-12 BOARD SKEW SWITCH AUDIO 15 kHz PLAYBACK -------------_...-" SPECIFIED VALUE: x 100 ~ 90% >- Audio/CTL RIP Head Fluctuation 10-35. « BV H-2000( U /C) IPS/PM 10-25 BVH-2180( U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 427 ADJUSTMENT FLUCTUATION ADJUSTMENT SCREW ZENITH ADJUSTMENT SCREW AZIMUTH ADJUSTMENT SCREW B Azimuth Adjustment HEIGHT ADJUSTMENT ZENITH ADJUSTMENT Height Adjustment AZIMUTH ADJUSTMENT SCREW A Fluctuation Fluctuation Adjustment Check « >- 10-36. Audio/CTL Monitor Head Zenith Adjustment BVH-2000(U/C)/PS/PM 10-26 BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 428 LG BOARD +---_.L-- Dp ~ 0.5 (PHASE Monitor Head -, Adjustment of Audio 3 kHz Playback Dp ~ 3 (PHASE DIFFERENCE: WITHIN Fig. 10-38. Audio/CTL Monitor Head Azimuth Adjustment of Audio 15 kHz Playback ..J >- « , « B V H -2000 (U /C) IPS/PM 10-27 BVH-2180{U/C)/PS/PM BVH-2500{U/C)/P...
  • Page 429 MONITOR OUT L -----v MONITOR OUT R BIIDIn SKEW KNOB RL-12 BOARD SKEW SWITCH AUDIO 15 kHz PLAYBACK 'U' ... « OUT L « « SPECIFIED VALUE: B x 100 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 430 10-1 . AUDIO/CTL HEAD IGHT ADJUSTMENT ADJUSTMENT RELEASE SCREW HEIGHT ADJUSTMENT SCREW >- « « BV H-2000 (U/C) IPS/PM 10-29 BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 431 SLANT GUIDES Fig. 10-42. Confirmation of Harness Clamp VIS ERASE HEAD VIS SCREW 10-43. V /S Erase Head Height Adjustment (mm) >- « « e:> BVH-2000(U/C)/PS/PM 10-30 BVH-2180( U/C)/PS/PM BVH-2500( U/C) /P...
  • Page 432 PAL/ NTSC SECAM > ", """" S3TI 1'" S4dJ PAL/ NTSC SECAM PAL-M TPE1 @ 1''' -" "€> S7?{] TP4@@ TPE2 TPE3 SV-43 Board TPE1@ TP1 TP2 TPE2 @TP14 TPE4 rryOOTP11 TP9 ~TP10 TP12 TP13 TPE3 11 -1 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 433 © RV3 @TPE2 TP9@@TP10 RV17 RV7 RV10 RV15 TP12 TP23 TP30 @ © TP24 RV14 f!lQ TP31 @TP11 RV11 TPE6 @ TP13 RV12 TPE3 TP16 RV13 TP14 (PS) TP19 TP17 TPE4 @TPE5 @TP21 TP20 @@TP15 11 -2 BVH-2000(U/C)/PS/PM BVH-2180( U/C)/PS/PM...
  • Page 434 :::i PAL! SECAM PAL-M NTSC >- TPE1 i» TPE2 © > TP11 TP10 RV5U TP12 @TP9 TPE3 TP24 51r: TP21 TP25 52'-" TPE5 TP20 RA-05 Board @TP20 TP10@TP9 @@TP21 @TP8 @TP19 TP22 TPE2 TP18 TP17@ @TP4 TP15 TP14 TP13 TT.. 0 1 TPE2 11 -3 BVH·2000(U/C)/PS/PM...
  • Page 436 11-1. SIT-REEL AND TIMER ROLLER FG 11-2. S-TENSION SENSOR ADJ USTM ENT c..9 DUTY ADJUSTMENT & > & ± ± BVH-2000{U/C)/PS/PM 11-5 BVH-2180{U/C)/PS/PM BVH-2500{U/C)/P...
  • Page 437 > ± ± ± & T135WEIGHT ± WEIGHT BV H-2000 (U /C) IPS/PM BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 438 11-5. AID CONVERTER ADJUSTMENT 11-6. D/A CONVERTER ADJUSTMENT 9" & > & ± (S4/CD-17) -I==t-= I' " "------ . .. Pin-16A 1 PERIOD "RV7/RL-12 -1/2 BV H-2000 (U /C) IPS/PM 11-7 BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 439 & "0". EXTENDER CD-17 BVH-2000(U/C)/PS/PM BVH-2180( U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 440 AUDIO/CTL PINCH ROLLER HEAD GUIDE POST CAPSTAN TAPE SENSOR CD-17 ~RV3 HO" BV H-2000( U/C) IPS/PM 80(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 441 <.9 ::::i « & For NTSC/PAL-M O.2Vp-p ± RV13 TP24 ± For PAL/SECAM O.2Vp-p ± TP24 RV13 ± TP24 TP24 A~250 mVp-p B~250 mVp-p BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 442 11-13. REC CTL LEVEL ADJUSTMENT 11-14. CONFI CTL LEVEL ADJUSTMENT & & > FOR NTSC/PAL-M TP14 TP24/CD-17 O.2Vp-p ± For PAL/SECAM TP14 TP24/CD-17 -------.".,. RV12 BVH-2000( U/C) IPS/PM BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 443 DRUM 11..15. PG PHASE ADJUSTMENT <.9 « ± VIDEO VIDEO OUT VIDEO VIDEO Set here. TP15 TP13 ± usee. BV H-2000 (U /C) IPS/PM 11-1 BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 444 PLAY TAPE ADJUSTMENT > CLAM VIDEO VIDEO O.02Vdc BVH-2000(U/C)/PS/PM 11-13 BVH-2180(U/C)/PS/PM...
  • Page 445 0.1Vdc Shift the burst flag (TP25) timing for matching the burst (TP4) portion. TP25 11-21. SC PHASE ADJUSTMENT '-''''-J1L.J'''-J.ll'- ± ± ± TP17 0.1j.tsec (NTSC/PAL-M) ± 0.1 usee (PAL/SECAM) ± ± ± ± BVH-2000( U/C)/PS/PM 11-14 BVH-2180( U/C)/PS/PM BVH-2500( U/C)/P...
  • Page 446 S- EEL EEL AM ADJUSTMENT ADJUSTMENT >- RA-05 BOARD RV2 t) ~ READING ADJUSTMENT ----. ROTATION OF RV2 1-23. S-REEL NORMAL TORQU E :"\WHrlnp~ IC5pin-6 BVH-2000(U/C)/PS/PM 11-15 BVH-2180( U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 447 « > RA-05 BOARD TPE2 TP17 R167 READING OF DVM ADJUSTMENT AREA OF RV5 ROTATION OF RV5 IC5 pin 1 1.35 0.1 msec ± BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 448 11-29. IP MOTOR ADJUSTMENT 11-28. S-REEL TENSION OFFSET ADJUSTMENT > Step. 1 Applicable Serial No. & rj>1 rj>2 Adjustment RT302 ± BVH-2000( U/C) IPS/PM BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 450 LIGNMENT (FOR 00/02 MODEL) SIGNAL SYSTEM AUDI AU-27 Board RV105 TP106 RV107 ... e RV1040 O@TPE106@TP103 @TPE103 RV1060 TP105 RV111 >- @TPEl RV205 TP206 RV207 RV2040 O@TPE206@ TP203 TPE203 RV206 @TP204@ TP205 TP202@ @TPE205 RV211 TPE202 TPE204 TP209 @TP208 00/02 Model Model ~RV5 RV33 RV37...
  • Page 451 S4dJ PAL/ SECAM NTSC PAL-M TP6 TP5@ TPE1 S8 @ RV16 TP18 TPE2 RV17 "j) RV15 RV7 RV10 TP23 TP12 " L· TP24 RV14 TP11 RV11 TPE6 TP13 RV12 TPE3 TP16 TP14 TP17 TP19 TPE5 TP21 TP20 TP15 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 453 \QI~ TPE203 TP303@ TP30 1 TP20 1 TP2031Y~ TP302 TPE202 RV202 TP304 @TPE204 TP205@@ TPE305@@ TP305 TPE3 R'O@@©TP204©TPE304TP306 TPE205@ @@@TP307 TPE405 TPE6 @TPE104 TP105©@ TPE306@TPE307 TPE4 TP7 @IR\ TPE 105 TP308 @ TP404 TPE5@\Q;TPl 04 TPE308 TPE404 BVH-2000(U/C)/PS/PM 12-4 BVH-2180(U/C)/PS/PM...
  • Page 454 12-1. LINE AMPLIFIER OFFSET AND 12-2. AUDIO LEVEL METER CALIBRATION OUTPUT LEVEL ADJUSTMENT & & AUDIO-I/2/3 >- (Sl/AE-03): kHz/+8 AUDIO-I/2/3 ± ± ± PB LEVEL CONTROLS AUDIO-I/2/3 & ± ± ± ± ± ± 12-5 BVH-2000{U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 455 & >- « BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500( U/C)/P...
  • Page 456 12-5. PB CTL LEVEL ADJUSTMENT 12-6. AUDIO ERASE OSCILLATOR FREQUENCY AND LEVEL ADJUSTMENT & & NTSC/PAL-M O.2V ± PAL/SECAM TP24 O.2Vp-p ORV13 12-7 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C}/P...
  • Page 457 12-7. SYNC ERASE (VIS Head) CURRENT 12-8. VIDEO (VIS Head)/CTL ERASE ENCY CURRE ADJU <..9 & ...J & >- ...J « <..9 ± mrn, ± ± 12-8 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 458 12-9. AUDIO ERASE CURRENT ADJUSTMENT & ...J >- ...J & mrn, URRE 2 ..10. Head) ADJUSTMENT CV1,2,3 -+--~~~ & ± ± ± ± BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 459 12-11. AUDIO (Audio/CTL Head) BIAS LEAK AND BIAS CURRENT ADJUSTMENT AUD-3 AUD-l Yellow Black AUD-2 >- ,~~- White :::J 0.5 dB AUDIO MONITOR OUTPUT Level Rotation BIAS LEVEL 12-10 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 460 12-12. RECORDING LEVEL ADJUSTMENT & ± ± & BVH-2000(U/C}/PS/PM, BVH-2180(U/C)/PS/PM 12-11 BVH-2500(U/C}/P...
  • Page 461 12-14. RECORD AMPLIFIER FREQUENCY 12-13. CONFI LEVEL ADJ STMENT RESPONSE USTME (For BVH-2000/2180 ModeI/BVH-2500) A n:::lIV7pr & >- ..'-JJLJ ..-...J ± ± 12-1 BVH-2000(U/C}/PS/PM, BVH-2180(U/C}/PS/PM BVH-2500(U/C}/P...
  • Page 463 12.. 7. 2- 8. TO AU 10.. 3 ROSSTALK ADJUSTMENT (For BVH-2000/2180 02 Model/BVH-2500) & « >- Adjustment For NTSC/PAL-M TP14/CD-17 For NTSC/PAL-M INCORRECT 0.1V ± AUDIO-3 LINE RV12 OUTPUT For PAL/SECAM TP14/CD-17 Minimum Crosstalk RV32/AE-03 0.19 0.05Vp-p ± ~RV12...
  • Page 464 & & >- For NTSC/PAL-M INCORRECT For NTSC/PAL-M INCORRECT AUDIO-3 LINE OUTPUT CORRECT ~1.0V RV12/AE-03 LV2/AE-03 PAL/SECAM INCORRECT INCORRECT Minimum Crosstalk f) RV9/AE-03 For PAL/SECAM INCORRECT AUDIO-3 LINE OUTPUT Minimum Crosstalk ~ RV8/AE-03 CORRECT ~1.0V RV12/AE-03 BVH-2000(U/C)/PS/PM, BVH-2180( U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 465 12-21. PLAY MODE CROSSTALK ADJUSTMENT <..9 >- <..9 « ± ± 12-22. MONITOR AMPLIFIER FREQUENCY RESPONSE ADJUSTMENT (For BVH-2000j2180 02 ModeI/BVH-2500) ~~~.~~-, ± rt=>cr\t=>,--trl.,TP BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM 12-16 BVH-2500(U/C)/P...
  • Page 466 2-23. TIM CODE DUTY CYCLE 12-24. TIME CODE OUTPUT LEVEL USTM ADJ STMENT >- & <[ TP8-TPE8 (GND)/AE-03 ± (Ext Trig: TP8) +1-) (Trig Slope: ~5 usee ",,--,V"LALA\JALJ, TP7-TPE8 (GND)/AE-03 (Ext Trig: TP7) +1-) (Trig Slope: ~5 usee BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 467 <; 12-26. BIAS LEAK ADJUSTMENT AUDIo-1/2/3 >- & & & & & & & & AUDIo-1/2/3 AUDIO-I/2/3. AVO .. r""'''',r\rn1 0' "l"lT1,t AVD-2 AVD-1/2 AVD-3 12-18 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 468 @TPE2 GRV16 @TP11 TPE3 "RV2 QRV32 >- JP1 JP2 TP1S ~!2:QJ RV30 TP16 @@TP15 :G-RV37-FOR NTSC, PM @TPAI TPEl TP3 TPE4 ~~~3.§ © GRV17 TPE6 RV10 RV13 RV11 TPS@ TP11 © @ CV2 © © TPE3 RV14 13-1 BVH-2000(U/C)/PS/PM 80(U/C)/PS/PM...
  • Page 469 @TP2 jqlOl CV2!1 TPE1 OCV3 ~TP4 TPE2 RV12 RV4 @ RV1 0 (] CV4 (PS) QQRV11 !I RV9 RV14 ..J RV15 TPE4 RV18{] RV19 TPE5 >- RV17 ..J TP10 LG-02(A) Board PAL/ NTSC SECAM PAL-M 13-2 BVH-2000( U/C) IPS/PM BVH-2180(U/C)/PS/PM...
  • Page 470 P-09 Board RV2 ~ TP2@ TP6@ « VR-05 Board > VR-07 Board; For 04 model VM-01 Board TPE1 © RV6Q RV7Q RV8Q TPE2 BVH-2000( U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 472 13-2. NSERT LEVEL 3-1. VI SIGNAL SYSTEM ALIGN ADJUSTMENT SEQUENCE 13-2 13-5 (VM-01l & <i >- <i 13-29, -30, (EQ-02J > 0.57 0.01 V (80 IRE) ± RV1/VM-Ol VIDEO 13-5 BVH-2000( U/C)/2180(U/C)
  • Page 473 LEVEL ADJUSTMENT & >- 0.5 to 4.1 MHz Flat RV3/VM-01 • 1.00 0.01 V ± WFM OUT • RV4/VM-01 VIDEO MONITOR 13..5. INPUT VIDEO LEVEL ADJUSTMENT VIDEO MONITOR 0.01V ± RV2/VM-01 WFM OUT 1.00 0.01V ± • RV5/VM-01 13-6 BVH-2000(U/C)/2180(U/C)/2500(U/C)
  • Page 474 REGULATOR ADJUSTMENT 13-8. MODULATOR URST TI & <.9 >- BVH-2000(U/C)/PM, BVH-2180(U/C)/PM BVH-2500( U/C)
  • Page 475 13-9. BURST LEVEL AND PHASE ADJUSTMENT 13-10. DG AND DP ADJUSTMENT & ..J INCORRECT >- INCORRECT ..J WFM OUT CORRECT less than 0.5 ~ RV2/MD Board CORRECT~ Burst and chroma should be in-phase. ORV7 INCORRECT WFM OUT less than 0.5% RV1 /MD Board CORRECT BVH-2000(U/C)/2180(U/C)/2500(U/C)
  • Page 477 VIDEO CH: Spectrum Analyzer TMAGN,FY Minimize 18 MHz Component. GRV9 SYNC CH : Spectrum Analyzer Minimize 18 MHz Component. usee ± GRV17 ORV23/MD Board 13-15. VIDEO/RF LEVEL METER CALIBRATION 'UT1t" Ihpc JLJL..I1..JL'JJLJ 100% 13-1 BVH-2000( U/C)/2180( U/C)/2500( U/C)
  • Page 478 3-16. BU DC LEVEL ADJUSTMENT 13-17. DEMOD AGC ADJUSTMENT & ,"--,'U',l.l".l''';.l0, >- « 13-18. DEMOD OUTPUT LEVELADJUSTENT 1 WFM OUT MAGNIFY BVH~2000(U/C)/PS, BVH-2180(U/C)/PS BVH-2500(U/C)
  • Page 479 Adjustment « 1.00±0.01V WFM OUT RV6/VM-01 WFM OUT (Line-21 ) Adjustment 3.58 MHz 0 dB/3.58 MHz usee. 0.5 ± 0.3 RV12/DM-25 WFM OUT ( Spectrum) Measure Analyzer center of no ise -55 dB than QRV4, *~RV17/DM-25 13-12 BVH-2000( U/C)/2180( U/C)/2500(U/C)
  • Page 481 >- > • t + •• 0.5 to 4.1 MHz Flat " RV14/DM-25 ~ RV16/DM-25 WFM OUT 13-14 BVH-2000(U/C)/2180(U/C)/2500(U/C)
  • Page 483 AND PB RF ADJUSTMENT LEVEL ADJUSTMENT & >- VIDEO CHANNEL > TP4 = 32 ± O.5Vp-p ORVl TP4= ±O.lMHz & 32 ± O.5Vp-p SYNC CHANNEL TP8 = 32 ± O.5Vp-p GRV3 TP8 = 16 ± 0.1 MHz ~LV2 ± 13-16 BVH-2000(U/C)/PM BVH-2180(U/C)/PM...
  • Page 485 13-30-6. PLAY VIDEO Moire Adj. Moire Adjustment 13-30-7. DP Adjustment RIP SYNC DG,DP, RV10, DG Adjustment Freq. Response Adjustment RV14 Freq. Response Adj. 13-30-8. DP Adjustment PLAY SYNC DG,DP, DG Adj ustment Freq. Response Freq. Response Adj. 13-18 BVH-2000(U/C)/PM BVH-2180(U/C)/PM...
  • Page 486 13-30-2. EQ Control Calibration INCORRECT INCORRECT WFM OUT (Vectorscope) <! CORRECT > INCORRECT INCORRECT WFM OUT (Vectorscope) 13-30-3. RIP DG, DP and Freq. V,IDEO Response Adjustment CORRECT & 13-19 BVH-2000(U/C)/2180(U/C)
  • Page 487 --+- & ) 88 IRE --+- WAVEFORM 0200n. MONITOR 841RE OR389/TEK 1410 >- & SWITCHER (A36) Board /,"'--P338---"',,- P3"86/ 3.58 MHz d B/3.58 MHz WFM OUT ( Spectrum) © Analyzer © Measure the © center of no ise 13-20 BVH-2000(U/C)/2180(U/C)
  • Page 488 Freq. & ..J <r ..J <r & > WFM OUT (Vector scope) & 0 dB/3.5S MHz INCORRECT INCORRECT WFM OUT (Vectorscopel CORRECT DG: less than 3% RV7/EQ-02 LV3/EQ-02 BVH-2000( U/C)/2180( U/C)
  • Page 489 13-30-7. RIP SYNC DG, DP and Freq. Response 13-30-8. PlAY SYNC DG, DP and Freq. Response >- f':I 13-22 BVH-2000(U/C)/2180(U/C)
  • Page 490 13-31. VIDEO/SYNC RECORD SYSTEM ADJUSTMENT 13-23 BVH-2000(U/C)/2180(U/C)
  • Page 491 13-31-2. Sync Channel Freq. Response, and DP Adjustment HA~'A~A' « 13-24 BVH-2000(U/C)/2180(U/C)
  • Page 493 RV23/EQ-02 VIDEO CH 0.35 0.05 Vp-p ± RV32/EQ-02 SYNC CH 0.35 0.05 Vp-p ± f') RV33/EQ-02 WFM OUT 0.3 Vp-p TP16/EQ-02 RV22/EQ-02 VIDEO CH 0.35 0.05 Vp-p ± (I RV25/EQ-02 SYNC CH 0.35 0.05 Vp-p ± RV31/EQ-02 13-26 BVH-2000(U/C)/PS BVH-2180(U/C)/PS...
  • Page 494 80(U/C)
  • Page 495 & BVH-2000/2180 TEST SIG. GEN INPUT VIDEO ..J <{ >- ..J <{ WFM OUT BVH-2000( U/C)/2180( U/C)
  • Page 498 14-2 >- Capstan Servo Check 80(U/C)/PS/PM BVH-2000( U/C)/PS/PM, BVH-2500(U/C)/P...
  • Page 499 R96® ®R139 @TP1 TPE1 &R98 tr\-. OQ)§>TP3 'R33 R94 (gTP2 R3 ; OTP10 S2¥o (DR6 R138 TPE3 TPE4 <t >- DT-05 Board R96® SR139 TPE1 AR50 ~airP10 tr\-.UR99 TP6~®R:) @TP2 aJR5 R138 R52 R9 R33 TPE2 TPE~ 14-2 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 500 lel pin-3 0.01 Vdc ± TP5/EQ-02 >- Edge Can nectar Pin-21 B R138...
  • Page 501 14-7. NG AN DT DRIVE LEVE 14-6. RAND ADJUSTMENT ADJUSTMENT LEVELS & Edge pin-5A- 0.5 Vdc >- TP5/EQ-02 • - - JO.35 O.05V Edge CN pin-5A Edge CN pin-5A 0.8 Vdc 14-4 BVH-2000( U/C) IPS/PM BVH-2180(U/C)/PS/PM...
  • Page 502 14-10. FEED-BACK LOOP ADJUSTMENT 14-8. RF ENVELOPE LEVEL ADJUSTMENT & ..J 50mV ± ~R52 >- ~Minimum ~R94/R96 14-9. STRAIN GAUGE LEVEL ADJUSTMENT 14-11. WOBBLING LEVEL ADJUSTMENT aT1r~1"'t .." ,. 0.5 Vdc ± QR139 BVH-2000(U/C)/PS/PM BVH-2180(U/C)/PS/PM...
  • Page 503 14-12. CONFIRMATION AFTER 2-1. Tape Path Check Reverse Direction 14-12-4. Reset System Check with Excessive Speeds 14-12-5. Horizontal Shift Check >- 2-2. 14-12-6. Color Frame Shift Check 12-7. Check 14-6 BVH-2000(U/C)/PS/PM, BVH-2180(U/C)/PS/PM BVH-2500(U/C)/P...
  • Page 505 BVH-2000(U/C) Printed in Japan 3-673-996-22 Volume-1 © 1985 1985.4 09...

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