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Dolby noise reduction manufactured under license from
Dolby Laboratories Licensing Corporation.
"DOLBY" and the double-D symbol
Dolby Laboratories Licensing Corporation.
IMPORTANT SERVICE NOTES (FOR UK ONLY) .............................................................................................................. 2
WIRING OF PRIMARILY SUPPLY LEADS (FOR UK ONLY) ............................................................................................. 2
SPECIFICATIONS ............................................................................................................................................................... 3
NAMES OF PARTS ............................................................................................................................................................. 3
DISASSEMBLY .................................................................................................................................................................... 4
ADJUSTMENT ..................................................................................................................................................................... 5
BLOCK DIAGRAM ............................................................................................................................................................... 6
SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ................................................................................................. 8
FUNCTION TABLE OF IC .................................................................................................................................................. 12
NOTES ON SCHEMATIC DIAGRAM ................................................................................................................................ 14
TYPES OF TRANSISTOR AND LED ................................................................................................................................. 14
REPLACEMENT PARTS LIST / EXPLODED VIEW
PACKING OF THE SET (FOR UK ONLY)
SERVICE MANUAL
B
C
are trademarks of
CONTENTS
SHARP CORPORATION
RT-XV300H
• In the interests of user-safety the set should be restored to its
original condition and only parts identical to those specified
should be used.
RT-XV300H
No. S4727RTXV300H
Page

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   Summary of Contents for Sharp RT-XV300H B C

  • Page 1 SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ....................8 FUNCTION TABLE OF IC ..............................12 NOTES ON SCHEMATIC DIAGRAM ..........................14 TYPES OF TRANSISTOR AND LED ..........................14 REPLACEMENT PARTS LIST / EXPLODED VIEW PACKING OF THE SET (FOR UK ONLY) SHARP CORPORATION...
  • Page 2 RT-XV300H ADJUSTMENT Adjusting the deck circuit MECHANISM SECTION • Driving Force Check • Checking the bias oscillation frequency Torque Meter Specified Value Adjusting object Set value Connection 85 ±7kHZ Play: TW-2412 80 g or more — TP101 1 or 3 Reverse Play: TW-2422 80 g or more •...
  • Page 3 RT-XV300H EQUALIZER AMP. IC101 M51167BFP A+12V MUTE Q115 Q116 RECORD/PLAYBACK P.B.AMP. HEAD Q151 SENS. Q152 MUTE VR101 CONTROL VR102 APSS Q137 A+12V APSS DOLBY NR B/C/OFF A+12V SELECTOR DOLBYR/P REC.AMP. IC102 SENS. PBCR BA3126N VR103 PBCR VR104 HEAD SELECTOR BIAS Q138 ADJUSTMENT VR105...
  • Page 4 RT-XV300H MUTE Q115 Q116 RECORD SIGNAL EMITTER Q151 Q152 AMP. PLAYBACK SIGNAL IC104 MICON CONTROL M5278L05 POWER VOLTAGE Q137 REGULATOR IC106 NJM78M10FA M+10V VOLTAGE AC 230V POWER REGULATOR 50Hz TRANSFORMER POWER AC POWER A+12V T101 CONTROL SUPPLY CORD F101 Q146 T800mA L 250V Q139 Q145...
  • Page 5 RT-XV300H PLAYBACK SIGNAL RECORD SIGNAL EQ OUT R133 C107 3.9K 10/50 C127 C121 C117 L101 R127 0.0047 220/16 10/50 R119 6.8mH 3.3K (ML) R123 2.7K C131 6.8K R114 R187 0.0082 R185 (ML) C105 R113 C113 0.033 100K C103 1/50 REC IN (ML) 220/10 C133...
  • Page 6 RT-XV300H MAIN PWB-A1 VR103 R149 C171 10K(B) 3.3K R137 R169 R109 10/50 L-CH REC.AMP.SENS. 6.8K MUTE R193 Q115 C139 C159 8.2K 0.0022(ML) 2SJ103 GR 0.47/50 R157 C153 VOLTAGE 0.047(ML) C145 R135 REGULAYOR L111 4.7/50 2.2K C161 C155 6.8mH C169 0.0022 R155 IC106 1/50...
  • Page 7 RT-XV300H PRICE PRICE DESCRIPTION PART CODE PARTS CODE DESCRIPTION RANK RANK VIBRATOR INTEGRATED CIRCUITS X101 RCRM-0119AFZZ AD Ceramic,6 MHz IC101 VHIM51167BFP1 AL Equalizer Amp.,M51167BFP1 IC102 VHIBA3126N/-1 AF Head Selector,BA3126N CAPACITORS IC103 VHIHA12142NT1 AS Dolby NR,HA12142NT IC104 VHIM5278L05-1 AE Voltage Regulator,M5278L05 C101,102 VCCSPA1HL561J AA 560 pF,50V...
  • Page 8 RT-XV300H PRICE PRICE DESCRIPTION PARTS CODE DESCRIPTION PART CODE RANK RANK R107,108 VRS-TV2AB392J AA 3.9 kohms,1/10W R241 VRD-ST2EE103J AA 10 kohm,1/4W R109,110 VRS-TV2AB123J AA 12 kohms,1/10W R242 VRD-ST2EE154J AA 150 kohms,1/4W R111,112 VRS-TV2AB333J AA 33 kohms,1/10W R243 VRD-ST2EE103J AA 10 kohm,1/4W R113 VRS-TV2AB104J AA 100 kohm,1/10W...
  • Page 9 RT-XV300H PRICE PRICE DESCRIPTION PART CODE PARTS CODE DESCRIPTION RANK RANK SW405 QSW-F9064AFZZ AC Switch,Leaf Type SW401 QSW-F9064AFZZ AC Switch,Leaf Type [Tape CrO Detection] [Tape Cassette Detection] SW406 QSW-F9064AFZZ AC Switch,Leaf Type SW402 QSW-F9064AFZZ AC Switch,Leaf Type [Tape Metal Detection] [Tape Side B Erase Prevention] TP101 92LCONE3P53253 J...
  • Page 10 RT-XV300H 502x2 60mm Figure 4 MECHANISM EXPLODE VIEW (1/2) – 4 –...
  • Page 11 RT-XV300H PWB-B SW404 SW403 SW406 SW401 SW405 M251 509x2 SOL401 515x3 BELT CONNECTION M251 Figure 5 MECHANISM EXPLODE VIEW (2/2) – 5 –...
  • Page 12 RT-XV300H 609x5 610x2 [UK Only] 605x4 TAPE 610x2 Mechanism 608x3 PWB-A3 608x4 608x5 PWB-A2 PWB-A4 202-1 202-2 Silicon Grease SOC101 IC106 Q146 201-1 602x4 607x2 PWB-A1 227x2 220x2 603x2 226x2 T101 PWB-A5 223-2 230x2 223-1 216x2 214x2 Figure 6 CABINET EXPLODED VIEW –...

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