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JVC TH-L1A Service Manual

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SERVICE MANUAL
2007
7 S ERVICE MANUAL
MB623
TH-L1A, TH-L1US, TH-L1UB,
TH-L1UJ, TH-L1UG, TH-L1UN
COPYRIGHT © 2007 Victor Company of Japan, Limited
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
All manuals and user guides at all-guides.com
DIGITAL MEDIA SYSTEM
AX-THL1

TABLE OF CONTENTS

COPYRIGHT © 2007 Victor Company of Japan, Limited
SP-THL1W
SP-THL1F
SP-THL1F
SP-THL1S
SP-THL1S
SP-THL1C
No.MB623
2007/7
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Summary of Contents for JVC TH-L1A

  • Page 1: Table Of Contents

    All manuals and user guides at all-guides.com SERVICE MANUAL DIGITAL MEDIA SYSTEM MB623 2007 7 S ERVICE MANUAL TH-L1A, TH-L1US, TH-L1UB, TH-L1UJ, TH-L1UG, TH-L1UN SP-THL1W SP-THL1F SP-THL1F SP-THL1S SP-THL1S SP-THL1C AX-THL1 COPYRIGHT © 2007 Victor Company of Japan, Limited Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
  • Page 2 All manuals and user guides at all-guides.com SPECIFICATION Center unit 40 W per channel RMS at 3 Ω at 1 kHz with 10% total harmonic distortion. Output power Front/Surround 100 W RMS at 4 Ω at 1 kHz with 10% total harmonic distortion. Center 100 W RMS at 4 Ω...
  • Page 3 All manuals and user guides at all-guides.com Subwoofer (SP-THL1W) Type 1-way Bass-Reflex Type (Magnetically-Shielded Type) 16 cm cone × 1 Speaker Power Handling Capacity 100 W 4 Ω Impedance Frequency Range 30 Hz to 1.5 kHz Sound Pressure Level 84 dB/W•m Dimensions (W ×...

  • Page 4: Precaution

    All manuals and user guides at all-guides.com 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: Specific Service Instructions

    All manuals and user guides at all-guides.com SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. SECTION 3 DISASSEMBLY Main body 3.1.1 Removing the SIDE PANEL (See Fig.1, 2) (1) Remove the nine screws A attaching the SIDE PANEL. (See Fig.1) (2) Remove the three screws B attaching the SIDE PANEL.
  • Page 6 All manuals and user guides at all-guides.com 3.1.2 Removing the FRONT PANEL assembly (See Fig.3, 4) (1) Remove the two screws C attaching the both side of FRONT PANEL assembly. (See Fig.3) (2) Disengage the six hooks a engaged both side of FRONT PANEL assembly.
  • Page 7 All manuals and user guides at all-guides.com 3.1.3 Removing the TOP CHASSIS (See Fig.5 to 8) (1) From the back side of main body, remove the two screws D attaching the TOP CHASSIS. (See Fig.5) (2) From the top side of main body, remove the one screw E attaching the TOP CHASSIS.
  • Page 8 All manuals and user guides at all-guides.com 3.1.4 Removing the HDMI assembly (See Fig.9, 10) (1) Disconnect the card wire from HDMI assembly connected to connector CN901 of the VIDEO 2 BOARD assembly. (See Fig.9) (2) Remove the two screws H and three screws J attaching the HDMI BOARD assembly.
  • Page 9 All manuals and user guides at all-guides.com 3.1.5 Removing the VIDEO 2 BOARD assembly (See Fig.11, 12) (1) Disconnect the card wire from VIDEO 2 BOARD assembly connected to connector CN905 of the MAIN BOARD as- sembly. (See Fig.11) (2) Remove the two screws K attaching the VIDEO 2 BOARD assembly.
  • Page 10 All manuals and user guides at all-guides.com 3.1.7 Removing the POWER BOARD assembly (See Fig.14 to 17) (1) Remove the four screws M attaching the POWER BOARD assembly. (See Fig.14) (2) Remove the one screw N attaching the DUMMY BOARD. (See Fig.15) (3) Disconnect the connector wires from POWER BOARD as- sembly connected to connector CN200,...
  • Page 11 All manuals and user guides at all-guides.com 3.1.8 Removing the REAR PANEL (See Fig.18 to 20) (1) Disconnect the connector wire from FAN connected to con- nector CN209 of the MAIN BOARD assembly. (See Fig.18) (2) Remove the two screws P attaching the SPEAKER TER- MINAL.
  • Page 12 All manuals and user guides at all-guides.com 3.1.9 Removing the DSP BOARD assembly (See Fig.21, 22) (1) Disconnect the card wire from DSP BOARD assembly con- CN320 CN205 nected to connector CN203, CN204 CN206 of the MAIN BOARD assembly. (See Fig.21) (2) Disconnect the connector wire from DSP BOARD assem- bly connected to connector CN205...
  • Page 13 All manuals and user guides at all-guides.com 3.1.10 Removing the MAIN BOARD assembly (See Fig.23, 24) (1) Remove the one screw W attaching the BRACKET BOARD. (See Fig.23) (2) Remove the four screws X attaching the JACK BRACKET. (See Fig.24) (3) Remove the one screw Y attaching the MAIN BOARD as- sembly.

  • Page 14: Adjustment

    All manuals and user guides at all-guides.com SECTION 4 ADJUSTMENT EXTENTION CABLE When do the operation check or do the confirm SPECIAL MODE, please use the extention cables connect to Main amp board and Power supply board. 1. EXTTHL1-7P × 2 pcs 2.
  • Page 15 All manuals and user guides at all-guides.com (No.MB623)1-15...
  • Page 16 All manuals and user guides at all-guides.com Victor company of Japan, Limited Audio/Video Systems category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MB623) Printed in Japan...
  • Page 17 All manuals and user guides at all-guides.com PARTS LIST TH-L1A,TH-L1US,TH-L1UB TH-L1UJ,TH-L1UG,TH-L1UN * All printed circuit boards and its assemblies are not available as service parts. - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1) 3- 6 Electrical parts list (Block No.01~04)
  • Page 18 All manuals and user guides at all-guides.com Exploded view of general assembly and parts list Block No. HDMI board Wire guard board FL board Wire stoper board Power board Main bo...
  • Page 19 All manuals and user guides at all-guides.com HDMI board Digital in board DSPboard Wire stoper board Main board...
  • Page 20 All manuals and user guides at all-guides.com General Assembly Block No. [M][1][M][M] Symbol No. Part No. Part Name Description Local  GV10364-001A FRONT PANEL E69897-002 CUSHION (x2) GV20472-005A FRONT LENS GV40745-001A DOOR SPRING (x2) QYSDSF2608ZA TAP SCREW M2.6 x 8mm(x2) GV31015-001A JACK DOOR GV31016-001A...
  • Page 21 All manuals and user guides at all-guides.com Symbol No. Part No. Part Name Description Local  GV40313-002A FELT SPACER (x2) GV30893-001A NUMBER LABEL QMPG150-244-JC POWER CORD(AST) 2.44m BLACK   QMPK200-200-JD POWER CORD(EK) 2m BLACK US,UJ,UG,UN  QMPN160-200-JD POWER CORD(EK) 2m BLACK QAR0456-001 QMFZ059-2R5-E...
  • Page 22 All manuals and user guides at all-guides.com Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1] D2001 MA111-X SI DIODE  Symbol No. Part No. Part Name Description Local D2101 MA111-X SI DIODE D2200 UDZW3.9B-X Z DIODE...
  • Page 23 All manuals and user guides at all-guides.com  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C1205 QETN1VM-477Z E CAPACITOR 470uF 35V M C1508 NCB31HK-472X C CAPACITOR 4700pF 50V K C1206 QETN1VM-477Z E CAPACITOR 470uF 35V M...
  • Page 24 All manuals and user guides at all-guides.com  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C2351 QETN1HM-106Z E CAPACITOR 10uF 50V M C2907 NCF31AZ-105X C CAPACITOR 1uF 10V Z C2352 NCB21AK-225X C CAPACITOR 2.2uF 10V K...
  • Page 25 All manuals and user guides at all-guides.com  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C3300 NCB31HK-104X C CAPACITOR 0.1uF 50V K R1224 NRSA63J-393X MG RESISTOR 39kΩ 1/16W J C3301 NCB31HK-104X C CAPACITOR 0.1uF 50V K...
  • Page 26 All manuals and user guides at all-guides.com  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R1705 NRSA63F-333X MG RESISTOR 33kΩ 1/16W F R2456 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R1706 NRSA63J-392X MG RESISTOR 3.9kΩ...
  • Page 27 All manuals and user guides at all-guides.com Power board  Symbol No. Part No. Part Name Description Local Block No. [0][2] R3101 NRSA63J-750X MG RESISTOR 75Ω 1/16W J R3103 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J  Symbol No. Part No. Part Name Description Local...
  • Page 28 All manuals and user guides at all-guides.com  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C109 QEZ0657-226Z E CAPACITOR 22uF 35V M R231 QRE141J-101Y C RESISTOR 100Ω 1/4W J C110 NCB31HK-471X C CAPACITOR 470pF 50V K...
  • Page 29 All manuals and user guides at all-guides.com  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local HS250 GV40614-001A HEAT SINK R2084 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J J900 QNZ0689-001 PIN JACK R2085 NRSA63J-0R0X MG RESISTOR...
  • Page 30 All manuals and user guides at all-guides.com  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R128 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J Q801 RT1P441C-X DIGI TRANSISTOR R130 NRSA63J-0R0X MG RESISTOR 0Ω...
  • Page 31 All manuals and user guides at all-guides.com  Symbol No. Part No. Part Name Description Local K351 NQR0502-001X FERRITE BEADS K352 NQR0502-001X FERRITE BEADS K353 NQR0502-001X FERRITE BEADS K354 NQR0022-002X FERRITE BEADS K501 NQR0502-001X FERRITE BEADS K701 NQR0022-002X FERRITE BEADS K702 NQR0022-002X FERRITE BEADS...
  • Page 32 All manuals and user guides at all-guides.com Packing materials and accessories parts list Block No. No additional / supplemental order of WARRANTY CARDs are available. US,UN A1, A3, A1, A2, A4, A5, A6 A5, A6 A7, A7, A8 A8, A10 UB,UG A1, A2,...
  • Page 33 All manuals and user guides at all-guides.com Packing and Accessories(Except TH-L1UJ) Block No. [M][3][M][M] Symbol No. Part No. Part Name Description Local  GVT0206-006A INST BOOK GVT0206-007A INST BOOK CHI(PEKIN) US,UB,UN GVT0206-009A INST BOOK ARA PER ------------ WARRANTY CARD BT-56017-1 ------------ WARRANTY CARD BT-56016-1...
  • Page 34 All manuals and user guides at all-guides.com Packing materials and accessories parts list Block No. A1, A2, A8 A10 The parts without symbol number are not service. 3-18...
  • Page 35 All manuals and user guides at all-guides.com Packing and Accessories(Only TH-L1UJ) Block No. [M][4][M][M] Symbol No. Part No. Part Name Description Local  GVT0206-006A INST BOOK QAM0944-001 PIN CABLE QAM0112-002 CONVERSION PLUG  ------------ BATTERY 1.5V(x2) QAM0955-002 iPod CABLE RM-STHL1A REMOCON ASL5WTHL1-EB01 SPK WITH BOX-W...
  • Page 36 All manuals and user guides at all-guides.com SCHEMATIC DIAGRAMS DIGITAL MEDIA SYSTEM TH-L1A,TH-L1US,TH-L1UB TH-L1UJ,TH-L1UG,TH-L1UN CD-ROM No.SML200707 SP-THL1W SP-THL1F SP-THL1F SP-THL1S SP-THL1S SP-THL1C AX-THL1 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)
  • Page 37 All manuals and user guides at all-guides.com In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the "...
  • Page 38 All manuals and user guides at all-guides.com Block diagram IC53 Y1 to Y4, Z1 to Z4 DSP section HDMI MA0 to 11, MDQ0 to 15 CABLE EQULIZER With SWITCHING D1.2V SCL_SINK, SDA_SINK IC302 IC505 BA0, BA1, MCK, DQM0, DQM1,NCSM, NRAS, NCAS, NWE MONITOR X301 D1.2V REG.
  • Page 39 All manuals and user guides at all-guides.com Standard schematic diagrams Primary section GVA10147-A1 T101 QQS0374-001 C211 1/2W POWER PWB CP211 FL SW Q211 TH101 R217 100P/50 ICP-N10-T QAD0141-8R0 KTC3265/Y/-X D101 D3SBA60 6.5V 6.4V D211 FR104S-T5 7.1V L101 L102 C215 100P/1000 Q212 Q213 FL VH...
  • Page 40 All manuals and user guides at all-guides.com System control section TO DSP TO VIDEO TO HDMI TO DSP Q2450 RTN1N140C-X D2353 MA111-X D2354 MA111-X D2351 1N4003S-T5 D2355 B3.3V Q2352 KTA1271/OY/-T MA111-X IC235 D2352 MA111-X 5.9V 5.8V MM1565AF-X D2357 MA111-X C2352 R2352 Q2200 5.9V...
  • Page 41 All manuals and user guides at all-guides.com Digital amp section SAFETY3 +33V TO Micom BLOCK POWER AMP. PGND EP101 EP101 QNZ0136-001Z IC103 TAS5142DDV-X 12.1V R1601 R1602 12.0V GVDD_B GVDD_A C1621 11.7V 3.3V /OTW BST_A 270P/50 C1615 R1606 C1611 C1614 33.2V 16.5V R1604 1/10W...
  • Page 42 All manuals and user guides at all-guides.com Audio/Video section AUX1 AUX2 COMP OUT J2700 QNN0828-001 J2600 C2600 1/10 QND0156-001 C2803 C2806 R2601 C2800 J2800 QNN0782-001 R2700 R2701 R2704 R2705 180k 180k 180k C2601 C2810 0.01/50 1/10 R2600 180k R2803 C2809 C2700 C2701 C2704...
  • Page 43 All manuals and user guides at all-guides.com FL board and Coaxial board section GVA10147-A3 GVA10147-A2 DI800 QLF0185-001 C800 0.1/50 C801 C905 0.1/50 47/25 IC900 C802 C907 TC74VHC04FT-K-X 0.1/50 C803 C804 0.1/50 3.3V R902 1.7V 3.4V C805 2.1V 100p 3.4V C806 C903 1.2V 3.4V...
  • Page 44 All manuals and user guides at all-guides.com DSP section (1/3) K354 48MHz NQR0022-002X C370 D1.2V REG. C328 0.01 DVDPWR 3.9V Cont D1.2V P3.3V 1.2V C302 47/4 IC302 MM1701CH-X CN301 for ICE D301 DGND CPURST RESET EEPROM R306 SCLK C564 DGND R307 SDATA DGND...
  • Page 45 All manuals and user guides at all-guides.com DSP section (2/3) SDRAM FLASH ROM IC505 IC509 SG32A90TFIR3 K4S641632K-UC75 EXADT15 0.4V 0.5V EXADR16 C560 3.3V EXADT14 0.7V 3.3V 2.8V 2.7V MDQ15 MDQ0 */BYTE DQ15 EXADT13 0.5V C551 3.3V VDDQ VSSQ EXADT12 0.7V 0.8V EXDT15 2.8V...
  • Page 46 All manuals and user guides at all-guides.com DSP section (3/3) P3.3V DGND R859 R860 Q801 UN2113X IC801 MM1565AF-X KRA104S-X R891 Vout CN801 QGF1016F8-05W IC891 Cont C819 CN811 QGA2001F6-05X R819 R811 1/2W K811 R812 K812 1/2W LVA10626-641B (3/3) NOTES VOLTAGES ARE DC-MEASURED WITH A DIGITAL VOLT METER WITHOUT INPUT SIGNAL.
  • Page 47 All manuals and user guides at all-guides.com HDMI section R2083 L2004 Shield NQR0597-001X C2063 NI TX2+ L2003 TX2GND NQR0597-001X TX2- TX1+ L2002 TX1GND R2003 NQR0597-001X R2002 TX1- 4.7k REXT TX0+ C2053 L2001 TX0GND NQR0597-001X C2051 ACKN BDT2P TX0- ACKP BDT2N TXC+ TXCGND ADT0N...
  • Page 48 All manuals and user guides at all-guides.com Printed circuit boards Power board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade) Q212 Q203 C204...
  • Page 49 All manuals and user guides at all-guides.com Main board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade) forward side reverse side J1001 Q1103...
  • Page 50 All manuals and user guides at all-guides.com DSP board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade) R104 R103 R129 R109...
  • Page 51 All manuals and user guides at all-guides.com Victor Company of Japan, Limited Audio/Video Systems Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.MB623SCH)

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