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Schaub Lorenz SL0521KO Service Manual

Color television / video cassette recorder
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SL0521KO
SERVICE MANUAL
COLOR TELEVISION/VIDEO CASSETTE RECORDER
ORIGINAL
MFR'S VERSION A
Design and specifications are subject to change without notice.

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Summary of Contents for Schaub Lorenz SL0521KO

  • Page 1 SL0521KO SERVICE MANUAL COLOR TELEVISION/VIDEO CASSETTE RECORDER ORIGINAL MFR’S VERSION A Design and specifications are subject to change without notice.

  • Page 2: Servicing Notices On Checking

    SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, Safety is secured against an X-ray by consider- they are indicated with the labels or seals on the ing about the cathode-ray tube and the high cabinet, chassis and parts.

  • Page 3: Tape Removal Method At No Power Supply

    TAPE REMOVAL METHOD AT NO POWER SUPPLY Remove the VCR block from the main unit. (Refer to item 1 of the DISASSEMBLY INSTRUCTIONS.) Remove the screw 1 of the Deck Chassis and remove the Loading Motor. Rotate the Pinch Roller Cam in the direction of the arrow by hand to slacken the Video Tape. Rotate the Clutch Ass'y either of the directions to wind the Video Tape in the Cassette Case.

  • Page 4: Table Of Contents

    CONTENTS SERVICING NOTICES ON CHECKING ..................A1-1 HOW TO ORDER PARTS ......................A1-1 TAPE REMOVAL METHOD AT NO POWER SUPPLY ............. A1-2 CONTENTS ..........................A2-1 GENERAL SPECIFICATIONS ....................A3-1~A3-5 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS AND P. C. BOARDS ..........B1-1, B1-2 2.

  • Page 5: General Specifications

    GENERAL SPECIFICATIONS G - 1 CRT Size / Visual Size 21 inch / 508.0mmV System CRT Type Normal Deflection degree Magnetic Field BV/BH +0.45G/0.18G Color System PAL/SECAM Speaker 1Speaker Position Front Size 3 Inch Impedance 8 ohm Sound Output 2.5W 10%(Typical) 2.0W G - 2...
  • Page 6 GENERAL SPECIFICATIONS Power Consumption at AC 60 W at 230 V 50 Hz at DC Stand by (at AC) 5 W at 230 V 50 Hz Per Year Protector Power Fuse Dew Sensor G - 6 Regulation Safety Radiation X-Radiation NONE G - 7 Temperature...
  • Page 7 GENERAL SPECIFICATIONS G - 1 2 Re mo te Unit RC-CH Control Glow in Dark Remocon Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys Keys Keys Power 0/AV CH/Tr Up CH/Tr Up/Page Up CH/Tr Down CH/Tr Down /Page Down Volume Up Volume Down...
  • Page 8 GENERAL SPECIFICATIONS Forward / Reverse Picture Search One Touch Playback Auto Tuning Anti-Theft End Call Index Search SQPB CATV CM Skip(30sec x 6 Times) Comb Filter T'Text Text type Fast Text Scene Repeat Hotel Lock TV Monitor TV/Rec Monitor Zero Return Choke Coil Power On Memory G - 1 4 Accessories Owner's Manual...
  • Page 9 GENERAL SPECIFICATIONS Key Light up Rec/OTR One Touch Playback Play Terminals Front Video Input RCA x1 Audio Input RCA x1 Other Terminal Headphone(Stereo & Mono, 3.5mm) Rear Video Input Audio Input Video Output Audio Output Euro Scart 1-SCART Diversity Ext Speaker DC Jack 12V(Center +) DIN type VHF/UHF Antenna Input...

  • Page 10: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS 1-3: TV/VCR BLOCK (Refer to Fig. 1-3) AND P.C. Boards Remove the 2 screws (1). Disconnect the following connectors: 1-1: BACK CABINET (Refer to Fig. 1-1) (CP401, CP501, CP502, CP4202 and CP4203). Remove the 6 screws (1). Unlock the support (2).
  • Page 11 DISASSEMBLY INSTRUCTIONS 1-5: DECK SHIELD PLATE (Refer to Fig. 1-5) Remove the 2 screws (1). Remove the 4 screws (2). Remove the screw (3). AC Head Cover Remove the Deck Shield Plate in the direction of arrow (A). Remove the 3 screws (4). Deck Chassis Remove the Shield Plate Bottom, Shield Plate Bottom (R), Shield Plate Bottom (L) in the direction of arrow (B).

  • Page 12: Removal Of Vcr Deck Parts

    DISASSEMBLY INSTRUCTIONS 2. REMOVAL OF VCR DECK PARTS NOTE In case of the Locker R installation, check if the one 2-1: TOP BRACKET (Refer to Fig. 2-1) position of Fig.2-3-B is correctly locked. Extend the 2 supports 1. When you install the Cassette Side R, be sure to move Slide the 2 supports 2 and remove the Top Bracket.
  • Page 13 DISASSEMBLY INSTRUCTIONS 2-6: LOADING MOTOR/WORM (Refer to Fig. 2-6-A) 2-7: TENSION ASS'Y (Refer to Fig. 2-7-B) Remove the screw 1. Turn the Pinch Roller Cam clockwise so that the Remove the Loading Motor. Tension Holder hook is set to the position of Fig. 2-7-A Remove the Worm.
  • Page 14 DISASSEMBLY INSTRUCTIONS 2-8: T BRAKE ARM/T BRAKE BAND (Refer to Fig. 2-8-A) Remove the T Brake Spring. Idler Gear Turn the T Brake Arm clockwise and bend the hook Idler Arm Ass'y section to remove it. Unlock the 2 supports 1 and remove the T Brake S Reel Band.
  • Page 15 DISASSEMBLY INSTRUCTIONS 2-10: CASSETTE OPENER/PINCH ROLLER BLOCK/ P5 ARM ASS'Y (Refer to Fig. 2-10-A) Unlock the support 1 and remove the Cassette Opener. Remove the Pinch Roller Block and P5 Arm Ass'y. Cassette Opener Spring Position Fig. 2-11-B 2-12: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-12) Pinch Roller Block Remove the screw 1.
  • Page 16 DISASSEMBLY INSTRUCTIONS 2-14: CAPSTAN DD UNIT (Refer to Fig. 2-14-A) 2-15: MAIN CAM/PINCH ROLLER CAM/JOINT GEAR (Refer to Fig. 2-15-A) Remove the Capstan Belt. Remove the 3 screws 1. Remove the E-Ring 1, then remove the Main Cam. Remove the E-Ring 2, then remove the Pinch Roller Remove the Capstan DD Unit.
  • Page 17 DISASSEMBLY INSTRUCTIONS NOTE 2-18: CASSETTE GUIDE POST/INCLINED BASE S/T UNIT/P4 CAP (Refer to Fig. 2-18-A) 1. When you install the Loading Arm S Unit, Loading Arm T Unit and Main Loading Gear, align each marker. Remove the P4 Cap. Unlock the support 1 and remove the Cassette Guide (Refer to Fig.

  • Page 18: Removal Of Anode Cap

    DISASSEMBLY INSTRUCTIONS 3. After one side is removed, pull in the opposite direction to 3. REMOVAL OF ANODE CAP remove the other. Read the following NOTED items before starting work. NOTE After turning the power off there might still be a potential Take care not to damage the Rubber Cap.

  • Page 19: Removal And Installation Of Flat Package Ic

    DISASSEMBLY INSTRUCTIONS REMOVAL AND INSTALLATION OF When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using FLAT PACKAGE IC a tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 4-3.) REMOVAL NOTE Put the Masking Tape (cotton tape) around the Flat...
  • Page 20 DISASSEMBLY INSTRUCTIONS INSTALLATION When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin- Take care of the polarity of new IC and then install the tip Soldering Iron. (Refer to Fig. 4-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.

  • Page 21: Key To Abbreviations

    KEY TO ABBREVIATIONS Audio/Control H.SW Head Switch Automatic Color Control Hertz Audio Erase Integrated Circuit Automatic Frequency ContZrol Intermediate Frequency Automatic Fine Tuning Indicator AFT DET Automatic Fine Tuning Detect Inverter Automatic Gain Control Killer Amplifier Left Antenna Light Emitting Diode A.PB Audio Playback LIMIT AMP...
  • Page 22 KEY TO ABBREVIATIONS SYNC Synchronization SYNC SEP Sync Separator, Separation Transistor TRAC Tracking TRICK PB Trick Playback Test Point UNREG Unregulated Volt Voltage Controlled Oscillator Video Intermediate Frequency Vertical Pulse, Voltage Display V.PB Video Playback Variable Resistor V.REC Video Recording Visual Search Fast Forward Visual Search Rewind Voltage Super Source...

  • Page 23: Service Mode List

    SERVICE MODE LIST This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter SERVICE MODE, Unplug AC cord till lost actual clock time. Then press and hold Vol (-) button of main unit and remocon key for more than 2 seconds.

  • Page 24: Preventive Checks And Service Intervals

    PREVENTIVE CHECKS AND SERVICE INTERVALS The following standard table depends on environmental conditions and usage. Parts replacing time does not mean the life span for individual parts. Also, long term storage or misuse may cause transformation and aging of rubber parts. The following list means standard hours, so the checking hours depends on the conditions.
  • Page 25 PREVENTIVE CHECKS AND SERVICE INTERVALS CLEANING NOTE 2. TAPE RUNNING SYSTEM After cleaning the heads with isopropyl alcohol, do not When cleaning the tape transport system, use the run a tape until the heads dry completely. If the heads gauze moistened with isopropyl alcohol. are not completely dry and alcohol gets on the tape, 3.

  • Page 26: When Replacing Eeprom (Memory) Ic

    WHEN REPLACING EEPROM (MEMORY) IC If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. NOTE: Initial Data setting will not be possible if clock has been set. To reset clock, either unplug AC cord and allow at least 30 minutes before Power On or alternatively, discharge backup capacitor.

  • Page 27: Servicing Fixtures And Tools

    SERVICING FIXTURES AND TOOLS (For 2 head 1 speed model, ( For 2 head 2 speed model) JG002B Adapter JG005 Post Adjustment 4 head model) VHS Alignment Tape JG002E Dial Torque Gauge Screwdriver VHS Alignment Tape JG001C (VP S-LI6 ) (10~90gf•cm) Part No.

  • Page 28: Preparation For Servicing

    PREPARATION FOR SERVICING How to use the Servicing Fixture Unplug the connector CP4202 and CP4203 then remove the TV/VCR Block from the set. Unplug the connector CP810, CP820 and CP850, then remove the Main PCB from the VCR Block. Connect as shown in the below figure using the Service Fixture. •...

  • Page 29: Mechanical Adjustments

    MECHANICAL ADJUSTMENTS 1. CONFIRMATION AND ADJUSTMENT 1-2: CONFIRMATION AND ADJUSTMENT OF TENSION POST POSITION Read the following NOTES before starting work. Set to the PLAY mode. • Place an object which weighs between 450g~500g on Adjust the adjusting section for the Tension Arm the Cassette Tape to keep it steady when you want to position so that the Tension Arm top is within the make the tape run without the Cassette Holder.
  • Page 30 MECHANICAL ADJUSTMENTS 1-4: CONFIRMATION OF VSR TORQUE NOTE Install the Torque Gauge (JG002F) and Adapter (JG002B) If the torque is out of the range, replace the following on the S Reel. Set to the Picture Search (Rewind) mode. parts. (Refer to Fig.1-4-B) Check item Replacement Part Then, confirm that it indicates 120~180gf•cm.
  • Page 31 MECHANICAL ADJUSTMENTS 2-2: CONFIRMATION AND ADJUSTMENT OF AUDIO/ 2-3: TAPE RUNNING ADJUSTMENT CONTROL HEAD (X VALUE ADJUSTMENT) When the Tape Running Mechanism does not work well, Confirm and adjust the height of the Reel Disk. adjust the following items. (Refer to item 1-1) Confirm and adjust the position of the Tension Post.
  • Page 32 MECHANICAL ADJUSTMENTS 3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE 1. Tension Connect P4 Post 2. Tension Arm T Brake Spring 3. Guide Roller T Reel 4. Audio/Control Head S Reel 5. X value adjustment driver hole Adjusting section for the Tension Arm position D2-4...

  • Page 33: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS 1. ADJUSTMENT PROCEDURE 2. BASIC ADJUSTMENTS Read and perform these adjustments when repairing the (VCR SECTION) circuits or replacing electrical parts or PCB assemblies. 2-1: PG SHIFTER CAUTION Connect CH-1 on the oscilloscope to TP4001 and CH-2 When you exchange IC and Transistor for a heat sink, to TP4201.
  • Page 34 ELECTRICAL ADJUSTMENTS (MONITOR TUNER) 2-5: 21 PIN VIDEO OUT Place the set with Aging Test for more than 10 minutes. Receive the PAL UHF. Connect the oscillator (38.9MHz) to TP601. Connect the oscilloscope to TP4201. Check if the 21 PIN VIDEO OUT is 1.0 ± 0.2V. Activate the adjustment mode display of Fig.
  • Page 35 ELECTRICAL ADJUSTMENTS 2-13: VERTICAL SIZE 2-17: WHITE BALANCE NOTE: Adjust after performing adjustments in section 2-11. NOTE: Adjust after performing CUT OFF adjustment. Receive the cross hatch signal from the Pattern Place the set with Aging Test for more than 15 minutes. Generator.
  • Page 36 ELECTRICAL ADJUSTMENTS 2-21: COLOR CENT 2-23: AGC GAIN Receive the cross hatch signal from the Pattern Receive the PAL color bar pattern. (RF Input) Generator. Using the remote control, set the brightness, contrast Activate the adjustment mode display of Fig. 1-1 and and color to normal position.
  • Page 37 ELECTRICAL ADJUSTMENTS 3. PURITY AND CONVERGENCE 3-3: STATIC CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 3-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator.
  • Page 38 ELECTRICAL ADJUSTMENTS 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) CD803 CRT PCB CP803B CP802 J801 TP804 CP850 MAIN PCB CP810 VR502 CP820 FB401 T501 T501 CP601 VR401 TP501 TP501 CP401 CP3001 CD602 CP502 J4201 CP603 TP4201 TU1101 L503 TP1102 CD502 AC IN IF PCB...

  • Page 39: Y/C/Audio/Head Amp/Secam Chroma/Hi-Fi

    TV BLOCK DIAGRAM TEXT SYNC T'TEXT 21_B SW VIDEO IF/21PIN/ 21_G IN/OUT/ 21_R Q602 OPERATION 21_Y Y/C/AUDIO/ BUFFER Y/C_VIDEO HEAD AMP/ CONTROL SECAM CHROMA/ Y/C_AUDIO CF605 HI-FI V-DRIVE S-TRAP IC401 TDA8174A VIDEO SW FRONT_V_IN VIDEO SW REAR_V_IN IC603 LA7956 Q405 Q406 JACK_VIDEO H.DRIVE...
  • Page 40 Y/C/AUDIO/HEAD AMP/SECAM CHROMA/HI-FI BLOCK DIAGRAM SECAM CHROMA IC2801 LA7358M SYNC 4.43MHz GATE MODE MUTE SYNC GATE GEN / V-SEP 1.1MHz CONTROL MUTE SECAM SW MUTE LOGIC MICON SECAM_L REC/ 1.1MHz Q2805 SECAM_H IREF MICON SECAM PB SW. SP_H Q4016 Q2803 Q2807 Q2804 SECAM SW...
  • Page 41 MICON BLOCK DIAGRAM SYSCON/TIMER/SERVO IC1006 OEC0113B SW1001 AV_1 SYSTEM RESET TAB SW /RES 1 OUT IC1002 AV_2 R3111N311A/C-TR POWER FAIL POWER_FAIL (DC) AT+5.6V MS SEN-A EXT_IN_L EXT_IN_L MS_SEN A DEC_TU_SW DEC_TU_SW Q1009 IF/21PIN/ IN/OUT/ MS SEN-B OPERATION MS_SEN B P.CON+5V Q1003 TUNER_MUTE TU_AUDIO_MUTE_H...

  • Page 42: Micon

    IF/21PIN/IN/OUT/OPERATION BLOCK DIAGRAM IC6003 TDA9818T REC_AFT Q6002 FM DEM CF6001 TU1101 REC_AGC_CTL SECAM VL REC_SVL-H MICON AM DEM IF_MOD DEC_TU_SW Q6003 DETECTOR BUFFER CP6001 Q6001 CF6002 SECAM VL SW Y/C/AUDIO/ TU AUDIO REC_TU_A HEAD AMP/ Q6004 SECAM CHROMA/ TU VIDEO REC_TU_V HI-FI PRE AMP...

  • Page 43: T' Text

    T' TEXT BLOCK DIAGRAM T'TEXT IC1201 ET-TVT008B X1201 TEXT_RESET RSTB 13875KHz OSC IN OSC OUT MICON OSD_R OSD_G Q1262 OSD_B OSD_Y BLANK BUFFER BLUE 29 GREEN TRIPLE ANALOG MPXER 30 RED IC1202 MM1231XF 11 VINP 20 VIDEO IN SYNC TEXT_R TEXT_G TEXT_B TEXT_Y...

  • Page 44: Printed Circuit Boards Main/Crt/Power Sw

    PRINTED CIRCUIT BOARDS MAIN/CRT/POWER SW (INSERTED PARTS) SOLDER SIDE CP810 R490 W023 VR502 CP403 IC506 D507 W814 R507 W022 W005 D515 D508 IC501 W015 D502 R511 CP820 W013 C531 D533 R453 W010 C542 W008 W009 C431 S802X R505 D514 D503 W036 R529 C410...
  • Page 45 PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS) SOLDER SIDE C807 R812 W808 C806 R821 C802 C413 R531 C541 R532 R523 R510 R553 R516 R520 C554...

  • Page 46: Syscon

    PRINTED CIRCUIT BOARDS SYSCON (INSERTED PARTS) SOLDER SIDE D4202 Q3001 IC3001 W300 CP3001 CP4203_2 IC3003 W299 R1289 TP1001 R3002 W892 W014 C1090 W013 C3002 W822 D3004 C1016 W293 W094 W010 W090 L604 W197 W006 W291 W087 W194 W083 W008 R1025 W199 R647 R613...
  • Page 47 PRINTED CIRCUIT BOARDS SYSCON (CHIP MOUNTED PARTS) SOLDER SIDE C1006 W829 R1011 C4237 C1168 R1115 C1102 Q1104 Q306 R1102 C1210 C4203 Q301 C1208 R1112 R1206 R1197 C320 C1219 R1203 R4053 Q2803 R2814 C316 C4033 C2816 C2823 R1255 R2808 R2819 W934 C1196 W918 R4054...

  • Page 48: Operation/If

    PRINTED CIRCUIT BOARDS OPERATION SOLDER SIDE J351 R761 R754 D793 W001 R350 W811 R351 W002 C351 CD351_1 J701_1 IF (CHIP MOUNTED PARTS) IF (INSERTED PARTS) SOLDER SIDE SOLDER SIDE CP6001 R6032 R6031 VR6001 D6001 L6006 W003 CF6004 C6018 Q6003 D6002 W010 W002 R6023...

  • Page 49: Y/C/Audio/Head Amp

    Y/C/AUDIO/HEAD AMP SCHEMATIC DIAGRAM BUFFER Q4017 FROM/TO SECAM CHROMA/HI-FI 2SC2412K (SYSCON PCB) L4002 W804 W934 W897 REC_IN 100uH 0305 SECAM_SW SECAM_PB_C BUFFER Y/C_VIDEO Q4006 FROM POWER R4065 LOW_C TP4002 R4081 W871 2SA1037AK LOW_C2 1K 1/4W V.ENV 1K 1/4W REC_TU_A C.SYNC REC_TU_V Q4007 S802X...

  • Page 50: Micon

    D1006 MICON SCHEMATIC DIAGRAM D1010 SB140-EIC SB140-EIC (SYSCON PCB) R1096 FROM/TO REGULATOR C1072 C1030 AT+5.6V 68P CH 0.1 F VCR_POWER_H AT+12V CAP_VCO P.CON+5V_C MOTOR_GND C1060 0.1 B 0.5 2.2 5.2 3.3 2.6 2.5 5.2 1.5 1.6 5.2 2.6 5.2 0 3.5 3.5 3.6 2.8 5.3 C1047 FROM/TO POWER...

  • Page 51: Power

    POWER SCHEMATIC DIAGRAM (SYSCON PCB) FROM REGULTOR TO Y/C/AUDIO/HEAD AMP REC_TU_V P.CON+5V_A REC_TU_A P.CON+5V_C AT+30V CF1101 MKT31.9MA110P FROM/TO MICON MO_SYNC REC_SVL-H SW_VIDEO REC_AFT REC_AGC_CTL AT+30V +30V 29.8 P.CON+5V_C IF_MOD L1103_1 P.CON+5V_A 100uH 9A06B MO_SYNC R1112 R1105 R1173 R1111 BUFFER R1197 Q1102 330K 3.3K...

  • Page 52: 21Pin/In/Out

    21PIN IN/OUT SCHEMATIC DIAGRAM (SYSCON PCB) FROM/TO MICON KEY_B W892 REC_LED FROM/TO SOUND AMP W887 T-REC_LED SOUND_L+ KEY_A SP_OUT_L W822 STANDBY_H POWER ON SW REMOCON_IN SOUND_GND Q4212 AT+5.6V_A KRC102SRTK W902 D4202 DEC_TU_SW TUNER_ON/OFF SB140-EIC R2217 R2218 R2219 R2220 R2221 1.5K 2.7K 5.6K EXT_IN_L...

  • Page 53: Chroma/If

    CHROMA/IF SCHEMATIC DIAGRAM FROM/TO 21PIN IN/OUT VIDEO SW IC IC603 LA7956 FROM/TO MICON (SYSCON PCB) FRONT_V_IN H_CTL REAR_V_IN VCR_POWER_H L613 FRONT_A_IN_L video switch P.CON+8V_A TV_POWER_H driver control REAR_A_IN_L 100uH 0305 P.CON+5V_A TU_AUDIO P.CON+9V SAW FILTER PROTECT JACK_VIDEO CF601_2 DEGAUSS_H K3953M 21_B POWER_FAIL[DC] AV_2...

  • Page 54: Sound Amp

    SOUND AMP SCHEMATIC DIAGRAM (SYSCON PCB) SOUND AMP IC IC352 AN7523 HS352_1 763WSA0021 FROM CHROMA/IF B301 FROM/TO 21PIN IN/OUT SOUND+B W5RH3.5X5X1.0 C303 SOUND_GND SOUND_L+ 1000 SP_OUT_L C306 R301 2.2K 0.47 SOUND_GND SW_AUDIO R306 C318 1K 1/4W 1000 TO SPEAKER CP354 MUTE SPEAKER TID-X02P-M1...

  • Page 55: Secam Chroma/Hi-Fi

    SECAM CHROMA/HI-FI SCHEMATIC DIAGRAM (SYSCON PCB) R2827 10K 1/4W R2813 VV SW W916 C2821 Q2806 VV SW 2SC2412K Q2802 0.01 2SA1037AK R2810 C2825 SECAM_PB_C 0.01 SECAM PB SW Q2805 KRC103SRTK SECAM_L VV_H C2801 REC_IN 220P CH 0.40 2.05 2.39 2.08 2.78 5.04 2.49...
  • Page 56 REGULATOR SCHEMATIC DIAGRAM (SYSCON PCB) 9V REG IC IC3001 KIA78R09API D3003 11E1-EIC TO Y/C/AUDIO/HEAD AMP 13.0 P.CON+9V P.CON+9V P.CON+5V_C FROM/TO MICON FROM TV POWER R3002 VCR_POWER_H CD3001 CP3001 (CP810) 2.2K 1/4W AT+12V B2013H02-9P CU293101 AT+5.6V CAP_VCO 5V REG. IC C3008 IC3003 P.CON+5V_C AT+12V...

  • Page 57: T'text

    T’TEXT SCHEMATIC DIAGRAM (SYSCON PCB) L1203 10uH 0305 Q1101 R1115 KTD863_Y BUFFER Q1104 KTC3875S_Y_RTK R1108 FROM REGULATOR P.CON+9V P.CON+5V_C L1205 D1203 D1202 SB140-EIC 10uH AT+5.6V 11E1-EIC W876 C1257 SYNC BUFFER 6.3V Q1253 KTC3875S_Y_RTK VDD3V1A R1206 C1219 VDD3V1B R1214 0.022 B W854 51 FLAG2 42 OSC OUT...
  • Page 58 TV POWER SCHEMATIC DIAGRAM (MAIN PCB) DEGAUSS_H RELAY DRIVE Q504 D516 R501_1 KTC3198 FROM/TO DEFLECTION 2.2 7W C 1SS133 SOUND+B DEGAUSS_H VCR.POWER_H W861 RY501 SOUND_GND T501_2 ALKS321 81350784 POWER_FAIL DEGAUSS COIL 308.3 15.5 L503 AT+13V DC IN 8H200015 CP502 A1561WV2-2P 344.5 D505 W802...
  • Page 59 DEFLECTION SCHEMATIC DIAGRAM (MAIN PCB) TO DY V-DRIVE IC IC401 TDA8174A CP401 A1561WV2-A5P 3221012F FB401_1 R404_1 11.1 24.5 24.2 247.6 330K +-1% 126.0 VIDEO FROM/TO CHROMA/IF 117.0 CP403 (CD602) R409 003P-2100 D403 680 1/2W 11E1-EIC R411 L402 1/2W V.LINEARTY ELH5L4112N VR401 R420_1 R406_1...
  • Page 60 CRT SCHEMATIC DIAGRAM (CRT PCB) CRT PCB TP804 R828 2.7K 1/4W RED AMP Q801 123.5 KTC4217(O,Y) W825 R810 4.7K TP805 C803 FROM CHROMA/IF CP850 (CP851) A2001WV2-5P R829 104.1 132.9 2.7K 1/4W CUT_OFF 132.5 G.OUT GREEN AMP Q802 R.OUT 123.9 KTC4217(O,Y) 132.8 B.OUT W829...
  • Page 61 IF SCHEMATIC DIAGRAM (IF PCB) C6013 6.3V SIF SAW FILTER IC L6005 CF6001 K9453M 3600036 C6011 C6015 8P TH 0.0022 VIF SAW FILTER IC CF6002 K3953M VOL REF VCO TWD DETECTOR SIF AMP AM DEM MODE SW QSS MIXER AGC VIF AGC VIDEO DEM SIF AGC VIF AMP...
  • Page 62 OPERATION SCHEMATIC DIAGRAM (OPERATION PCB) HEADPHONE JACK J351 HTJ-035-28A R350 R351 33 1/2W 33 1/2W W805 FROM/TO 21PIN IN/OUT CD351_1 (CP4202_1) CU273301 FRONT_VIDEO_IN FRONT_A_IN_L C351 GND/SOUND_GND 100P B SOUND_OUT_L SP_OUT_L POWER/PLAY R761 270 1/4W D792 SLZ-936C-07-S-T1 C701 0.001 B FRONT AV JACK J701_1 AV2-24D-5 FROM 21PIN IN/OUT...
  • Page 63 INTERCONNECTION DIAGRAM HEADPHONE JACK J351 IF PCB OPERATION PCB PCB350 PCB030 VE9892 TE9A16 VIDEO AUDIO L FRONT AV JACK HALL MAIN ROTOR J701_1 SENSOR COIL MAGNET FG SENSOR CAPSTAN DD UNIT ASS’Y M2001 HALL HALL SWITCH LOGIC CP1001 LOADING MOTOR M101 CAP_FG SP354...

  • Page 64: Tv Power

    WAVEFORMS TV POWER 1 5.0V 0.1ms/div 50.0V 20µs/div 12 PB 50mV 5ms/div DEFLECTION 2 2.0V 20µs/div 7 50.0V 20µs/div 13 REC 0.5V 10µs/div TV POWER 10.0V 5ms/div 14 REC 3 2.0V 5ms/div 0.5V 10µs/div Y/C/AUDIO/HEAD AMP 10 REC 4 200mV 20µs/div 15 REC 0.5V 10µs/div 2.0V 20µs/div...
  • Page 65 WAVEFORMS 17 REC 22 REC 27 PB 100mV 0.5ms/div 1.0V 10µs/div 2.0V 0.5µs/div 18 REC 23 REC 28 PB 0.5V 0.5ms/div 2.0V 20µs/div 2.0V 0.5µs/div 19 20.0V 2ms/div 24 REC 30 REC 2.0V 5ms/div 2.0V 1ms/div POWER 20 REC 25 REC 31 REC 20.0V 5µs/div 2.0V 20µs/div...
  • Page 66 WAVEFORMS SOUND AMP 50 REC 45 REC 0.5V 0.5ms/div 2V 20µs/div 21PIN/IN/OUT SECAM CHROMA/HI-FI 46 REC 51 PB 0.5V 10µs/div 200mV 5µs/div 52 REC 0.5V 0.5ms/div 47 REC 0.5V 10µs/div 48 REC 100mV 0.5ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 67: Mechanical Exploded Views

    MECHANICAL EXPLODED VIEW J801 PCB110 (CRT PCB ASS'Y) L503 V801 FB401 PCB340 (POWER SW PCB ASS'Y) PCB070 (MAIN PCB ASS'Y) SW501 PCB030 (OPERATION PCB ASS'Y) SP354 I1-1...
  • Page 68 MECHANICAL EXPLODED VIEW PCB350 (IF PCB ASS'Y) TU1101 TU601 J4201 PCB010 (SYSCON PCB ASS'Y) I1-2...

  • Page 69: Chassis Exploded Views

    CHASSIS EXPLODED VIEW (TOP VIEW) CD1501 M2003 UN4001 H5002 H5001 CD1502 M101 NOTE: Applying positions AA, AB, AC and AD for the CLASS PART NO. MARK grease are displayed for this section. GREASE G-555G Check if the correct grease is applied for each MG-33 position.
  • Page 70 CHASSIS EXPLODED VIEW (BOTTOM VIEW) CD1501 M2001 CD1502 NOTE: Applying positions AA, AB, AC and AD for the CLASS PART NO. MARK grease are displayed for this section. GREASE G-555G Check if the correct grease is applied for each MG-33 position.

  • Page 71: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION A5D608G720K CABINET,FRONT ASSY 753WUAA006 SPRING,EARTH HEAD AMP 713WPAA044 GUIDE,REMOCON 761WPA0151 HOLDER,M/PCB 735WPAA356 BUTTON,BASE 85OP700037 HOLDER,LED 800WQ00048 FELT,SHEET 75x75 761WPA0239 HOLDER,TV-PCB 752WSA0269 PLATE,SHIELD BOTTOM(R) 752WSA0278 PLATE,DECK SHIELD ASS'Y 752WSA0267 PLATE,SHIELD BOTTOM 752WSA0270 PLATE,SHIELD BOTTOM(L) 741WUA0002 SPRING,EARTH 722566A010 SHEET,RATING...

  • Page 72: Chassis Replacement Parts List

    CHASSIS REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION A5D601G420A DECK ASSY A5D601G420A 8107226804 SCREW,TAP TITE(S) BIND 2.6x8 83ETW30000 E-RING 85OA400234 PINCH ROLLER BLOCK 8107226404 SCREW,TAP TITE(S) BIND 2.6x4 85OP900746 BRACKET,TOP 3V 8102120604 SCREW,PAN M2x6 85OP200290 BELT,CAPSTAN (S) 8109126604 SCREW,TAP TITE(B) PAN...

  • Page 73: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION RESISTORS DIODES R418 R3X181151J R,METAL OXIDE 150 OHM 1W D611 D1VT001330 DIODE,SILICON 1SS133T-77 R423 R3X28A271J R.METAL OXIDE 270 OHM 2W D791 002132Q130 SLZ-936C-07-S-T1 ! R447 R635U2820J R,FUSE OHM 1/2W D792...
  • Page 74 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION TRANSISTORS COILS &TRANSFORMERS Q1004 TNAAC05002 COMPOUND TRANSISTOR KRC103SRTK L2802 021LA66R8K COIL 6.8 UH Q1005 0002700690 PHOTO COUPLER RPI-303 L2803 021LA6270K COIL Q1006 0000M00390 PHOTO TRANSISTOR ST-304L L2804 021LA6680K COIL...
  • Page 75 ELECTRICAL REPLACEMENT PARTS LIST REF. NO. PART NO. DESCRIPTION RESISTOR MISCELLANEOUS RC....CARBON RESISTOR CD602 06CH01006A CORD CONNECTOR CH01006A CD801 127C210012 BRAIDED WIRE TD-2081 CAPACITORS CD803 WDL6030038 FLAT CABLE AWM2468 AWG26 6C BLACK 300MM CC....CERAMIC CAPACITOR CD850 06CU253901 CORD CONNECTOR CU253901 CE....
  • Page 76 M5D6-08G SPEC.NO. U2Y5548 O/R NO.

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