JVC TH-C5 Service Manual
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JVC TH-C5 Service Manual

Dvd digital theater system
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SERVICE MANUAL
DVD DIGITAL THEATER SYSTEM
4
2005
MB362
(SP-THC5F) (SP-THC5C)
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-42
TH-C5
(SP-THC5F)

TABLE OF CONTENTS

COPYRIGHT © 2005 Victor Company of Japan, Limited
(SP-THC5S)
(SP-PWC5)
(XV-THC5)
TH-C5
Area suffix
J ---------------------------- U.S.A.
C ------------------------- Canada
No.MB362
2005/4

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  • Page 1: Table Of Contents

    SERVICE MANUAL DVD DIGITAL THEATER SYSTEM MB362 2005 TH-C5 TH-C5 Area suffix J ---------------------------- U.S.A. C ------------------------- Canada (SP-THC5F) (SP-THC5C) (SP-THC5F) (SP-THC5S) (SP-PWC5) (XV-THC5) TABLE OF CONTENTS PRECAUTION............... . . 1-4 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION Center unit Audio section Total Harmonic Distortion 0.02%*1 Digital input*2 DIGITAL IN(DBS):-21 dBm to -15 dBm(OPTICAL:660 nm ±30 nm) Video section Video System NTSC Horizontal Resolution 500 lines Signal-to-Noise Ratio 64 dB Video output level Composite:1.0 V(p-p)/75Ω S-video-Y:1.0 V(p-p)/75 Ω S-video-C:0.286 V(p-p)/75 Ω...
  • Page 3 Satellite Speakers (SP-XTHC5) 5.5 cm (2-3/16 inches) × 2 Front speakers (SP-THC5F) Speaker unit Bass-reflex, Magnetically Shielded Power Handling Capacity 170 W Impedance 3Ω Frequency Range 95 Hz to 20 kHz Dimensions (W × H ×D) 230 mm × 1 103.5 mm × 285 mm (9-1/16 inches ×...

  • Page 4: Precaution

    SECTION 1 PRECAUTION Safety Precautions (1) This design of this product contains special hardware and voltmeter. many circuits and components specially for safety purpos- Move the resistor connection to each exposed metal es. For continued protection, no changes should be made part, particularly any exposed metal part having a return to the original design unless authorized in writing by the path to the chassis, and measure the AC voltage across...
  • Page 5 Preventing static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs. 1.5.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as laser products.
  • Page 6 Importance administering point on the safety Power supply board (Center unit) Mother board (Subwoofer) Caution: For continued protection against risk of fire, replace only with same type 1.6 A/125 V for F901, 8A/125V for F101,10 A/125 V for F153 and F154. This symbol specifies the type of fast operating fuse.

  • Page 7: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. (No.MB362)1-7...

  • Page 8: Disassembly

    SECTION 3 DISASSEMBLY Main body section 3.1.1 Removing the metal cover (See Figs. 1 to 4) (1) From the both sides of the main body, remove the four screws A attaching the metal cover. (See Figs. 1 and 2.) Metal cover (2) From the back side of the main body, remove the three screws B attaching the metal cover.
  • Page 9 3.1.2 Removing the front panel assembly (See Figs. 5 and 6) • Prior to performing the following procedures, remove the metal cover. CN457 CN456 Main board (1) From the top side of the main body, disconnect the parallel wires from the connectors (CN456, CN457) on the main board.
  • Page 10 3.1.3 Removing the DVD changer mechanism assembly (See Fig. 7) • Prior to performing the following procedures, remove metal cover and front panel assembly. DVD changer mechanism assembly (1) From the top side of the main body, remove the screw E at- CN402 CN401 CN403 taching the wire protection board to the main board.
  • Page 11 3.1.5 Removing the audio & digital input board (See Figs. 9 and 10) • Prior to performing the following procedures, remove the metal cover. Main board CN412 Power supply board (1) From the top side of the main body, disconnect the card wires from the connectors (CN411, CN412) on the main Card wires CN411...
  • Page 12 3.1.8 Removing the main board (See Fig. 11) • Prior to performing the following procedures, remove the metal cover, rear panel, audio & digital input board and tuner. Wire protection board CN460 CN456 (1) From the top side of the main body, remove the screw Q CN457 CN401 CN402...
  • Page 13 Front panel assembly section • Prior to performing the following procedures, remove the front panel assembly from the main body. (See "Removing the front panel assembly") 3.2.1 Removing the phone jack board (See Fig. 1) (1) From the inside of the front panel assembly, remove the screw A attaching the phone jack board.
  • Page 14 3.2.5 Removing the front board (See Figs. 3 and 4) • Prior to performing the following procedures, remove the phone jack board, bracket board and operation board. Front panel assembly (1) From the front side of the front panel assembly, pull out the volume knob in the direction of the arrow.
  • Page 15 DVD changer mechanism assembly section Remove the DVD changer mechanism assembly from the main body. (See "Removing the DVD changer mechanism assembly".) 3.3.1 Removing the tray assemblies (See Figs.1 to 5) (1) From the top side of the main body, remove the two screws Top cover A from the top cover and release the two joints a on the both sides of the DVD changer mechanism assembly.
  • Page 16 Open det. lever Fig.3 Side(R) assembly Tray assemblies Fig.4 Tray assembly Fig.5 1-16 (No.MB362)
  • Page 17 3.3.2 Removing the DVD servo board (See Figs.6 to 8) Caution: Solder the short land sections d on the DVD pickup before dis- connecting the card wire extending from the DVD pickup. If you do not follow this instruction, the DVD pickup may be dam- DVD pickup aged.
  • Page 18 3.3.4 Removing the motor board (See Figs.9 and 10) (1) From the top side of the DVD changer mechanism assem- bly, remove the two belts from the motor pulleys. (See Fig.9.) Note: Take care not to attach grease on the belt. Belt Belt (2) Remove the two screws D attaching the motors to the load-...
  • Page 19 3.3.6 Removing the DVD traverse mechanism assembly (See Fig.11) • Remove the tray assemblies and DVD servo board. DVD changer mechanism assembly (1) From the bottom side of the DVD changer mechanism as- sembly, remove the three screws F attaching the DVD traverse mechanism assembly.
  • Page 20 3.3.7 Removing the DVD pickup (See Figs.12 to 14) • Remove the tray assemblies, DVD servo board and DVD DVD traverse mechanism assembly traverse mechanism assembly. Feed bracket (1) From the top side of the DVD traverse mechanism assem- Thrust spring bly, release the lock of the connector on the DVD pickup Connector and disconnect the card wire in the direction of the arrow.
  • Page 21 DVD pickup Rack arm Guide shaft Rack arm spring Fig.14 Tray assembly Fig.15 (No.MB362)1-21...
  • Page 22 3.3.9 Removing the spindle motor board (See Figs.16 and 17) • Remove the tray assemblies, DVD servo board and DVD DVD traverse mechanism assembly traverse mechanism assembly. (1) From the top side of the DVD traverse mechanism assem- Spindle motor board bly, remove the wires from the soldered sections r on the spindle motor board.
  • Page 23 3.3.10 Removing the feed motor (See Figs.18 and 19) • Remove the tray assemblies and DVD traverse mechanism Feed bracket assembly. (1) From the top side of the DVD traverse mechanism assem- Thrust spring bly, remove the screw K attaching the feed bracket and re- move the feed bracket from the sections t.
  • Page 24 3.3.11 Removing the side (L) and tray switch board (See Figs.20 to 22) • Remove the tray assemblies. SIde(L) (1) From the topside of the DVD changer mechanism assem- bly, remove the two screws M attaching the side (L). (See Fig.20.) (2) From the left side of the DVD changer mechanism assem- bly, disconnect the connector...
  • Page 25 3.3.12 Removing the side (R) assembly (See Fig.23 to 27) • Remove the tray assemblies and DVD servo board. Elevator spring (1) From the inside of the side (R) assembly, release the two tabs aa of the gear cover and remove the gear cover out- ward.
  • Page 26 3.3.13 Removing the lifter assembly (See Figs.28 to 32) • Remove the tray assemblies, DVD servo board, side (L) and Hook side (R) assembly. (1) (1) From the top side of the DVD changer mechanism as- sembly, turn the gear 1 clockwise to move the lifter assem- bly upward.
  • Page 27 3.3.14 Removing the sensor board and SV resistor (See Fig.33) • Remove the tray assemblies, side (L), side (R) assembly and Sensor board lifter assembly. (1) Remove the solders from the soldered sections aj on the sensor board and remove the wires. (2) Remove the two screws Q and take out the sensor board with the SV resistor.
  • Page 28 3.3.15 Taking out the disc in the play mode (See Fig.34 to 37) Reference: Tray assembly Refer to "3.3.1 Removing the tray assemblies". (1) From the top side of the DVD changer mechanism assem- bly, remove the top cover. (2) Unlock the tray assemblies and draw out the tray assem- blies toward the front.
  • Page 29 Tray stopper Main tray Sub tray Fig.36 Tray stopper Fig.37 (No.MB362)1-29...
  • Page 30 Speaker section 3.4.1 Removing the amplifier assembly (See Figs.1 to 3) (1) From the back side of the speaker main body, remove two screws A attaching the amplifier assembly. (See Fig.1) (2) From the bottom side of the speaker main body, remove the eight screws B attaching amplifier assembly.
  • Page 31 3.4.2 Removing the rear panel (See Figs.4 and 5) • Prior to performing the following procedures, remove the am- plifier assembly. (1) From the back side of the amplifier assembly, remove the four screws C, two screws D and screw E attaching the rear panel.
  • Page 32 3.4.5 Removing the mother board (See Figs.8 and 9) • Prior to performing the following procedures, remove the am- plifier assembly, rear panel and heat sink BKT. (1) From the top side of the amplifier assembly, remove the two screws H attaching the mother board. (See Fig.8) (2) From the left side of the amplifier assembly, disconnect the wires from the connectors CN102...
  • Page 33 3.4.7 Removing the heat sink (See Figs.11 and 12) • Prior to performing the following procedures, remove the am- Heat sink Power IC plifier assembly, rear panel, heat sink BKT, mother board and amp. board. (1) Remove the four screws K attaching the power IC to the heat sink.
  • Page 34 3.4.10 Removing the power transformer (See Figs.14 and 15) • Prior to performing the following procedures, remove the am- Wire clamp Amplifier assembly plifier assembly and rear panel. (1) From the top side of the amplifier assembly, disconnect the wires from the connectors CN102 CN151 on the moth-...
  • Page 35 3.4.11 Removing the speaker net (See Figs.16 and 17) (1) From side of the speaker main body, insert the tip of the Flat-bladed flat-bladed screwdriver or similar tool into the space be- screwdriver,etc. tween the speaker main body and speaker net, and lift the speaker net little by little to remove.
  • Page 36 3.4.12 Removing the speaker (See Figs.18 and 19) • Prior to performing the following procedures, remove the speaker net. (1) From right side of the speaker main body, remove the eight screws Q attaching the speaker. (See Fig.18) (2) Take out the speaker from the speaker main body. (See Fig.19) (3) Disconnect the wires from the terminal of the speaker.

  • Page 37: Adjustment

    SECTION 4 ADJUSTMENT Special mode 4.1.1 Outline The contents in the special mode of operation, and the definition of a key (remote controller or main unit) 4.1.2 Special mode 1.DVD TEST MODE It goes into the TEST mode of DVD. DVD TEST mode is canceled by except DVD source, and POWER OFF.
  • Page 38 5.FORCED NTSC MODE It is made compulsive NTSC mode. From this, with regards to the input of NTSEL_SW, there is nothing only at the time of 1st power on, and it performs NTSC starting. (Command specification is performed to a module.) A mode clearance is performed by power off.
  • Page 39 DVD TEST MODE Refer to "4.2.2 Indication of FL display in the DVD test mode" as required Insert the power cord in an outlet while pressing the "POWER" and "PLAY" keys on the main unit simultaneously. It is made POWER ON in test mode, and VERSION is displayed on FL. FL indication TEST bb# TEST bb#...
  • Page 40 Press the "MENU" key on the remote controller. Enter to CHECK MODE FL indication FL indication Press the "1" key on the remote controller. CHECK CHECK Starting of DISC & normal play (Play from the started position) FL indication Press the "2" key on the remote controller. Existence of WOBBLE 0 : WOBBLE_NO_CHECK (Un-checking.) 1 : WOBBLE_PRESS_MEDIA (Press)
  • Page 41 FL indication Press the "0" key on the remote controller. MONITOR output change 1 : SRV_MONI_CIRC 2 : SRV_MONI_SERVO 3-5 : SRV_MONI_ANALOG 6-7 : SRV_MONI_DRC 8-11 : SRV_MONI_SERVO_JIG 12 : SRV_MONI_DEFAULT FL indication Press the "+10" key on the remote controller. Initialization of the contents of a backup memory Press the "STOP"...

  • Page 42: Troubleshooting

    SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING. 1-42 (No.MB362)
  • Page 43 (No.MB362)1-43...
  • Page 44 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MB362) Printed in Japan...
  • Page 45 PARTS LIST [ TH-C5 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix J ----------------------------- U.S.A. C -------------------------- Canada - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1) 3- 5 Speaker assembly and parts list(Subwoofer) (Block No.M2)
  • Page 46 Exploded view of general assembly and parts list Block No. Operation board Power key board Bracket board...
  • Page 47 Power supply board Main board Wire protection board Audio & Digital input board Bracket board Bracket board Front board Phone jack board...
  • Page 48 General Assembly Block No. [M][1][M][M]  Symbol No. Part No. Part Name Description Local GV10233-001A FRONT PANEL ASSY GV20310-001A FRONT LENS GV30641-002A VOLUME RING QYSDSF2608ZA TAP SCREW M2.6 x 8mm QYSDSF2608ZA TAP SCREW M2.6 x 8mm(x2) QYSDSF2608ZA TAP SCREW M2.6 x 8mm(x4) LV42851-006A FL SCREEN GV20312-001A...

  • Page 49: Speaker Assembly And Parts List(Subwoofer) (Block No.m2)

    Speaker assembly and parts list Block No. (Subwoofer) Amp. board Mother board LED board The parts without symbol number are not service.
  • Page 50 Speaker(Subwoofer) Block No. [M][2][M][M]  Symbol No. Part No. Part Name Description Local LV10875-002A CHASSIS BASE LV10951-001A HEAT SINK QYSBSG3010EA TAP SCREW M3 x 10mm(x3) QYSBSG3016EA TAP SCREW M3 x 16mm(x4) QYSBSG3010EA TAP SCREW M3 x 10mm(x9) QQT0482-001 POWER TRANSF ...

  • Page 51: Dvd Mechanism Assembly And Parts List (Block No.mj)

    DVD mechanism assembly and parts list Block No. Grease FXL-D8-1M =JVG-31N =JVS-1003 2.4mm + 0.1mm Letter side APPLY AREA Letter side 7.0mm + 0.1mm Reverse side The parts without symbol number are not service.
  • Page 52 DVD mechanism Block No. [M][J][M][M]  Symbol No. Part No. Part Name Description Local LV10985-001A C.TM CHASSIS QAR0334-002 S.MOTOR QYSPSPU1740ZA SCREW M1.7 x 4mm(x3) QAR0144-003 MOTOR VKS5557-001 F.M. GEAR QYSPSPT2025ZA SCREW M2 x 2.5mm LV35461-002A MIDDLE GEAR LV44040-001A SCREW SHAFT LV35462-001A SCREW SHAFT GEA QAL0667-001...

  • Page 53: Dvd Changer Mechanism Assembly And Parts List (Block No.mk)

    DVD changer mechanism assembly and parts list FMU-SM1-1M Block No. Grease =JVG-31N =JVS-1003 CH5-BASE-1M The parts without symbol number are not service.
  • Page 54 DVD changer mechanism Block No. [M][K][M][M]  Symbol No. Part No. Part Name Description Local LV10913-004A LOADER ASSY QVY0027-B14 S V RESISTOR QYSDST2004ZA TAP SCREW M2 x 4mm QAR0164-001 MOTOR (x2) LV42340-001A MOTOR PULLEY (x2) LV41431-002A BELT (x2) QYSPSPU1725NA SCREW M1.7 x 2.5mm(x2) LV33965-004A LIFTER ASSY...

  • Page 55: Electrical Parts List (Block No.01~06)

    IC601 RC4558D-X D4961 MTZJ4.7A-T2 Z DIODE  IC901 STR-G6651 D4962 1SS133-T2 SI DIODE IC951 PQ05RD21SSJH D4963 1SS133-T2 SI DIODE Q951 2SC3576-JVC-T TRANSISTOR  PC901 PC123Y22FZ PHOTO COUPLER Q953 KTA1267/YG/-T TRANSISTOR  PC902 PC123Y22FZ PHOTO COUPLER Q954 SI2305DS-X TRANSISTOR Q955 KRC103S-X DIGITAL TR ...
  • Page 56  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C4321 NCB30JK-105X C CAPACITOR 1uF 6.3V K C6603 QETN1HM-475Z E CAPACITOR 4.7uF 50V M C4331 NCB30JK-105X C CAPACITOR 1uF 6.3V K C6611 QETN1HM-475Z E CAPACITOR 4.7uF 50V M...
  • Page 57  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R4708 QRE141J-221Y C RESISTOR 220Ω 1/4W J R6106 QRE141J-330Y C RESISTOR 33Ω 1/4W J R4709 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R6107 QRE141J-390Y C RESISTOR 39Ω...
  • Page 58  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local FC901 QNG0003-001Z FUSE CLIP S523 QSW0825-001Z TACT SW FC902 QNG0003-001Z FUSE CLIP S526 QSW0825-001Z TACT SW FW901 QUM219-06DGZ4-E PARA RIBON WIR S527 QSW0825-001Z TACT SW FW902...
  • Page 59  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C1213 QETN1HM-475Z E CAPACITOR 4.7uF 50V M R1138 NRSA63J-104X MG RESISTOR 100kΩ 1/16W J C1214 QETN1HM-475Z E CAPACITOR 4.7uF 50V M R1139 NRSA63J-104X MG RESISTOR 100kΩ...
  • Page 60  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R2582 NRSA63J-104X MG RESISTOR 100kΩ 1/16W J  D152 GBU803 BRIDGE DIODE R2583 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J D154 1SS133-T2 SI DIODE R2584 NRSA63J-333X MG RESISTOR...
  • Page 61  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C503 QETN1HM-475Z E CAPACITOR 4.7uF 50V M C3504 QETN1HM-225Z E CAPACITOR 2.2uF 50V M C512 QETN1HM-475Z E CAPACITOR 4.7uF 50V M C3601 NCB31HK-152X C CAPACITOR 1500pF 50V K...
  • Page 62  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R686 QRE141J-102Y C RESISTOR 1kΩ 1/4W J R2614 NRSA63J-104X MG RESISTOR 100kΩ 1/16W J R2101 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J  R2701 QRZ9005-220X FUSI RESISTOR 22Ω...
  • Page 63  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R3604 NRSA63J-183X MG RESISTOR 18kΩ 1/16W J IC510 BR24L16FV-W-X R3605 NRSA63J-154X MG RESISTOR 150kΩ 1/16W J IC701 AK4384VT-X R3607 NRSA63J-104X MG RESISTOR 100kΩ...
  • Page 64  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C335 NCF31EZ-104X C CAPACITOR 0.1uF 25V Z R116 NRSA63J-471X MG RESISTOR 470Ω 1/16W J C337 NCB31CK-183X C CAPACITOR 0.018uF 16V K R117 NRSA63J-331X MG RESISTOR 330Ω...
  • Page 65  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R461 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R463 NRSA63J-101X MG RESISTOR 100Ω 1/16W J QGF1036F1-15 CONNECTOR FFC/FPC (1-15) R464 NRSA63J-101X MG RESISTOR 100Ω...

  • Page 66: Packing Materials And Accessories Parts List (Block No.m3)

    Packing materials and accessories parts list Block No. No additional / supplemental order of WARRANTY CARDs are available A1,A3,A4, A5,A6,A7, A8,A9, A12, A20,A21, A22,A23, 3-22...
  • Page 67 Packing and Accessories Block No. [M][3][M][M]  Symbol No. Part No. Part Name Description Local GVT0150-001C INSTRUC.BOOK RM-STHC8J REMOTE CON. QMPE180-183-JN POWER CORD(US/CA) 1.83m BLACK  ----------------- BATTERY (x2) BT-51034-2 REGISTRATION CARD YU20333 SAFETY INST. QAM0216-001 SIGNAL CORD QAL0014-001 AM LOOP ANT QAL0457-001 ANT.WIRE A 10...

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