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JVC TH-C4 Service Manual
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JVC TH-C4 Service Manual

Dvd digital theater system
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SERVICE MANUAL
DVD DIGITAL THEATER SYSTEM
5
2005
MB380
(SP-THC4C)
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
TH-C4
(SP-THC4F)
(XV-THC4)
TABLE OF CONTENTS
COPYRIGHT © 2005 Victor Company of Japan, Limited
(SP-THC4S)
(SP-PWC4)
Area suffix
J ---------------------------- U.S.A.
C ------------------------- Canada
No.MB380
2005/5

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Summary of Contents for JVC TH-C4

  • Page 1 SERVICE MANUAL DVD DIGITAL THEATER SYSTEM MB380 2005 TH-C4 Area suffix J ---------------------------- U.S.A. C ------------------------- Canada (SP-THC4C) (SP-THC4F) (SP-THC4S) (SP-PWC4) (XV-THC4) Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) TABLE OF CONTENTS PRECAUTION.
  • Page 2 SPECIFICATION Center unit (XV-THC4) Audio section Total Harmonic Distortion*1 0.02% Digital input*2 DIGITAL IN (DBS)(OPTICAL): -21 dBm to -15 dBm(660 nm ± 30 nm) Video section Video System NTSC Horizontal Resolution 500 lines Signal-to-Noise Ratio 64 dB Composite: 1.0 V(p-p)/75 Ω Video output level S-video-Y: 1.0 V(p-p)/75 Ω...
  • Page 3 SECTION 1 PRECAUTION Please refer to "TH-C3 (No.MB358)" about this section. SECTION 2 SPECIFIC SERVICE INSTRUCTIONS Please refer to "TH-C3 (No.MB358)" about this section. SECTION 3 DISASSEMBLY Please refer to "TH-C3 (No.MB358)" about this section. SECTION 4 ADJUSTMENT Please refer to "TH-C3 (No.MB358)" about this section. SECTION 5 TROUBLESHOOTING Please refer to "TH-C3 (No.MB358)"...
  • Page 4 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MB380) Printed in Japan...
  • Page 5 SCHEMATIC DIAGRAMS DVD DIGITAL THEATER SYSTEM TH-C4 Area suffix CD-ROM No.SML200505 J ---------------------------- U.S.A. C ------------------------- Canada (SP-THC4C) (SP-THC4F) (SP-THC4S) (SP-PWC4) (XV-THC4) Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Contents Block diagram...
  • Page 6 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 " " mark nearby are critical for safety.
  • Page 7 < M E M O >...
  • Page 8 Block diagram <Main body section> DVD servo section EXADT0 to 15, EXADR16 to 20 A, B, C, D, E, F, RF+, PD(CD), PD(DVD) NEXCE, NEXOE, NEXWE IC509 DVD traverse LPCO1, LPCO2 FLASH ROM LASER DRIVER mechanism LD(CD), LD(DVD) CDLDCUR, DVDLDCUR Q101 to Q104 X301 27MHz...
  • Page 9 <Subwoofer section> Audio & Digital input section Amplifier section SW.P.ON, SETUP SYSTEM C,SW SL,SR,L, R IC158 CONN. Q1131 HPOUT_L HPOUT_R Q1133 J2702 Q1135 IC160 IC201 FLOUT S.MUTE AMP. POWER RY271 S_MUTE AMP. FROUT VOL_MUTE FCOUT VOL_DT IC153 RY272 VOL_CK SLOUT IC202 VOL.
  • Page 10 Standard schematic diagrams <Main body section> Power supply section T 9 0 1 Q Q S 0 0 9 7 - 0 0 1 E P 9 0 1 Q N Z 0 1 3 6 - 0 0 1 Z D 9 0 1 D I 1 0 6 R 9 0 1...
  • Page 11 GVA10092-A2 C 9 5 1 1 0 0 p / 5 0 Q 9 5 1 POWER PWB C P 9 5 1 2 S C 3 5 7 6 - J V C - T R 9 5 1 I C P - N 1 0 - T - 2 7 .
  • Page 12 System control section To CN441 To CN (SHEET 5) (SHEE C N 4 1 1 C N 4 1 2 Q G F 1 0 3 6 C 1 - 3 1 Q G F 1 0 3 6 C 1 - 0 7 GVA10092-A1 (1/2) MAIN PWB...
  • Page 13 To CN442 To CN703 To CN702 (SHEET 5) (SHEET 7) (SHEET 7) To TUNER 4 1 2 C N 4 0 2 C N 4 0 1 C N 4 1 0 Q G F 1 0 3 6 C 1 - 0 8 Q G F 1 2 0 5 C 1 - 1 1 C 1 - 0 7 Q G F 1 0 3 6 C 1 - 1 0...
  • Page 14 Video input / output section GVA10092-A1 S C A R T - R I N S C A R T - L I N A G N D A + 1 2 V V S 3 V S 1 THIS AREA USES J/C/UY/UW/UJ A 5 V L 4 3 9 1...
  • Page 15 V E R . B C 4 4 9 1 0 . 0 1 / 5 0 C 4 4 7 2 3 3 0 p / 5 0 J 4 4 0 3 Q N Z 0 6 2 5 - 0 0 1 R 4 4 7 2 1 5 0 C 4 4 7 6...
  • Page 16 FL display section C 5 0 9 C 5 1 0 D I 5 0 1 Q L F 0 1 5 4 - 0 0 1 FL DISPLAY K 5 0 2 C 5 1 5 0 . 0 1 / 5 0 K 5 0 1 VOLUME J S 5 4 1...
  • Page 17 GVA10094-A1 FL PWB B 5 0 8 U S E W 5 0 0 1 Q U B 2 2 0 - 1 0 D M H P - E F W 5 6 1 Q U M 2 1 4 - 1 6 D G Z 4 - E 4 .
  • Page 18 Audio & Digital input section A U X - L A U X - R T U - L T U - R C 2 5 3 9 I C 5 3 1 0 . 1 / 1 6 R C 4 5 5 8 D - X C 2 5 3 5 ( 1 / 2 ) R 2 5 4 1...
  • Page 19 GVA10093-A1 AUDIO PWB R 1 1 0 1 C 2 5 0 3 4 7 0 4 . 7 / 5 0 L-IN C 2 5 0 4 R 1 1 0 2 R-IN 4 7 0 4 . 7 / 5 0 C 1 0 0 3 0 .
  • Page 20 DVD servo section (1/2) C372 C102 C373 VREFH C101 R104 R112 E3+F3 E4+F4 4.3k 4.3k E1+F1 C315 EXADT0 E2+F2 NEXCE R115 R107 NEXOE C307 Q103 Q101 Q104 Q102 EXDT0 2SC4617/R/-X 2SC4617/R/-X R101 EXDT8 C107 EXDT1 C103 EXDT9 EXDT2 R102 C104 EXDT10 EXDT3 EXDT11...
  • Page 21 P3.3V D1.2V IC302 IC302 MM1701CH-X 0.01 C328 R327 DGND R330 DACPDN R331 ADCRST DAC1CS DVDPWR R332 DAC2CS R318 SWMUTE TP325 TP320 CPURST C376 D301 TP328 TP329 TP330 TP331 TP332 TP333 TP334 TP335 R362 R357 AOUT0 R364 DATAM C311 R360 AOUT1 R359 AOUT2 R358...
  • Page 22 DVD servo section (2/2) R716 IC505 IC509 K4S641632H-UC75 SG32M90TFIR3 ADCRST C551 R720 EXADT15 EXADR16 EXADT14 MDQ0 MDQ15 EXADT13 EXADT12 EXDT15 MDQ1 MDQ14 EXADT11 EXDT7 MDQ2 C563 MDQ13 EXADT10 EXDT14 C556 EXADT9 EXDT6 MDQ3 MDQ12 EXADT8 EXDT13 MDQ4 C559 MDQ11 EXADR19 EXDT5 EXADR20 EXDT12...
  • Page 23 IC704 10/16 C708 AK5357ET-X R716 C706 C705 C704 R720 C707 10/16 R715 R714 K744 To CN401 R704 (SHEET 2) TP704 IC701 R703 C701 K748 AK4384VT-X LRMUTE K749 1/16 SWMUTE K740 C712 C714 C713 C709 R701 10/16 R717 R702 47/6.3 TP708 IC702 AK4384VT-X C715...
  • Page 24 DVD changer mechanism section LB1641 QSW0854-002 M.TR_OP TR5_CL TR5_CL TR4_CL TR4_CL TR3_CL TR3_CL TR2_CL TR2_CL TR1_CL TR1_CL 0.1/50 QRA0164-001 2-17...
  • Page 25 QVY0027-B14 WJM0331-001A WJM0330-002A LB1641 TR3_CL TR2_CL TR4_CL TR1_CL TR5_CL M.TR_OP POS_UP TR_OP POS_DOWN TR_CL 0.1/50 4-001 QRA0164-001 SHEET 8 2-18...
  • Page 26 <subwoofer section> Amplifier section I C 2 0 2 1 / 4 W ! 4 . 7 R 2 7 0 9 R 2 7 2 1 4 . 7 D 2 7 0 3 1 / 4 W M T Z J 1 6 C - T 2 4 .
  • Page 27 I C 2 0 1 S T K 4 1 3 - 4 3 0 * 4 M A R K V E R S I O N L 2 2 0 2 / 2 3 0 2 / 2 4 0 2 C 2 2 1 1 / 2 3 1 1 / 2 4 1 1 C 2 2 1 2 / 2 3 1 2 / 2 4 1 2 R 2 2 1 5 / 2 3 1 5 / 2 4 1 5...
  • Page 28 Mother section TO CN272 (SHEET 9) TO CN271 F A N M O T O R (SHEET 9) Q A R 0 3 1 8 - 0 0 1 C N 3 7 2 Q G B 2 5 1 0 K 2 - 0 9 C N 2 7 4 Q G A 3 9 0 1 C 1 - 0 2 C N 3 7...
  • Page 29 F A N M O T O R VERSION Q A R 0 3 1 8 - 0 0 1 A : AUSTRALIA US: SINGAPOLE B : GREAT BRITAIN UB: HONG KONG C : CANADA UP: KOREA E : GERMANY/FRANCE/HOLLAND UF: CHINA EN: SWEDEN/NORWAY/FINLAND/DENMARK UX: SAUDI ARABIA...
  • Page 30 Printed circuit boards <Main body section> Main board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (Main board) J4891 C4719 C4718 CN404 CN405 CN406 CN407 R4891 C4891 R4482 C4892 CN402 R4481 R4892 D4962 R4483 D4832 R4835...
  • Page 31 (Phone jack board) CN701 W6001 C6004 C6001 K6002 R6001 C6002 (Power supply board) C4006 FC901 FC902 EP403 C4017 C4002 CN401 C902 R906 CN403 B4039 B4013 R905 C915 C4016 R910 D901 W401 R911 B4032 C4791 K902 Q4931 B3199 C907 R907 R4791 IC473 C904 C914...
  • Page 32 Front board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (Front board) S540 S539 S538 S537 S536 S535 S534 S533 S532 S531 R534 R536 R533 R503 IC501 R506 BK502 W5001 C502 R502 IC511 BK501 R505 K502...
  • Page 33 Audio board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (Audio & Digital input board) W101 TPL1 TPR1 TPMIC1 CN442 CN441 C1001 EP101 C541 Q1251 R2533 R2539 Q1252 R2538 R2541 IC531 R2582 C2590 R2537 R2584 C2584...
  • Page 34 DVD servo board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Forward side CN452 CN453 D701 IC705 C707 X451 C708 IC451 X301 IC505 Reverse side CN701 CN702 CN703 CN704 C108 IC703 Q104 Q103 IC701 IC702 TP324...
  • Page 35 Loading board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (Motor board) (Tray switch board) (Switch board) (Sensor board) 2-28...
  • Page 36 <Subwoofer section> Amp board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (Amp board) C3403 Q3401 Q3402 C3402 R3406 R3413 R3412 R3408 R3405 R3402 R3403 C3404 D3402 C3401 R3404 R3401 R3411 D3401 C3703 IC302 R3311 D3301...
  • Page 37 C2503 C3203 Q3202 Q3201 C3202 R3206 C2603 R3210 R3209 R3212 R3208 R3205 R3203 R3202 C3201 R3204 3402 D3202 C3204 C3701 R3201 C2403 3401 D3201 3401 R3211 R3111 IC301 D3101 C3102 C3104 C2103 D3102 R3110 R3103 R3102 3302 R3109 R3107 R3108 R3105 C2303 R3104...
  • Page 38 Mother board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (Mother board) CN502 CN372 R3741 R3742 CN501 C602 R611 C3602 R562 R560 R3605 R559 R3608 C3604 C606 C3705 R563 K181 R3611 L182 R3610 R3511 D546 C183...
  • Page 39 (LED board) D3707 D3706 C3602 R3727 C3715 FW501 C3720 CN371 R3603 R3602 C3601 R3501 R3601 C3502 R3503 R3502 R3504 C3501 R3717 D3602 C3706 FC104 D3601 IC303 D3501 D3502 FC102 FC101 FC103 C3503 R3506 C101 Q503 S901 D101 D507 D535 2-32...
  • Page 40 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.MB380SCH)

  • Page 41: Table Of Contents

    PARTS LIST [ TH-C4 ] * 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 42 Exploded view of general assembly and parts list Block No. Operation board Power key board Bracket board...
  • Page 43 Power supply board Main board Wire protection board Audio & Digital input board Bracket board Bracket board Front board Phone jack board...
  • Page 44 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 GV30641-003A 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 45: 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 46 Speaker(Subwoofer) Block No. [M][2][M][M]  Symbol No. Part No. Part Name Description Local LV10875-002A CHASSIS BASE LV30225-0T5A SPACER LV30225-0T6A SPACER 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 47: 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 48 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 49: 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 50 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 51: 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 52  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 53  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 54  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local FC901 QNG0003-001Z FUSE CLIP S526 QSW0825-001Z TACT SW FC902 QNG0003-001Z FUSE CLIP S527 QSW0825-001Z TACT SW FW901 QUM219-06DGZ4-E PARA RIBON WIR S528 QSW0825-001Z TACT SW FW902...
  • Page 55  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C1214 QETN1HM-475Z E CAPACITOR 4.7uF 50V M R1139 NRSA63J-104X MG RESISTOR 100kΩ 1/16W J C1215 QETN1HM-475Z E CAPACITOR 4.7uF 50V M R1140 NRSA63J-104X MG RESISTOR 100kΩ...
  • Page 56  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R2583 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J D154 1SS133-T2 SI DIODE R2584 NRSA63J-333X MG RESISTOR 33kΩ 1/16W J D163 1SS133-T2 SI DIODE R2585 NRSA63J-622X MG RESISTOR...
  • Page 57  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C512 QETN1HM-475Z E CAPACITOR 4.7uF 50V M C3601 NCB31HK-152X C CAPACITOR 1500pF 50V K C522 QETN1HM-106Z E CAPACITOR 10uF 50V M C3604 QETN1HM-225Z E CAPACITOR 2.2uF 50V M...
  • Page 58  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R2101 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J  R2701 QRZ9005-220X FUSI RESISTOR 22Ω R2103 NRSA63J-563X MG RESISTOR 56kΩ 1/16W J  R2702 QRJ146J-220X UNF C RESISTOR 22Ω...
  • Page 59  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R3605 NRSA63J-154X MG RESISTOR 150kΩ 1/16W J IC701 AK4384VT-X R3607 NRSA63J-104X MG RESISTOR 100kΩ 1/16W J IC701 or AK4384ET-X R3608 NRSA63J-101X MG RESISTOR 100Ω...
  • Page 60  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C337 NCB31CK-183X C CAPACITOR 0.018uF 16V K R117 NRSA63J-331X MG RESISTOR 330Ω 1/16W J C338 NCB31HK-562X C CAPACITOR 5600pF 50V K R125 NRSA63J-1R0X MG RESISTOR 1Ω...
  • Page 61  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R463 NRSA63J-101X MG RESISTOR 100Ω 1/16W J QGF1036F1-15 CONNECTOR FFC/FPC (1-15) R464 NRSA63J-101X MG RESISTOR 100Ω 1/16W J QGB2024K1-07S CONNECTOR B-B (1-7) R465 NRSA63J-102X MG RESISTOR...

  • Page 62: 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,A13 3-22...
  • Page 63 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...