STANDBY AUDIO/FM MODE STANDBY/ON D I G I T A L VOLUME SOURCE S U R R O U N D DVD DIGITAL THEATER SYSTEM TH-A5 D I G I T A L RM-STHA5J DVD THEATER SYSTEM XV-THA5 SP-WA5 Contents...
TH-A5 1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.
Page 3
TH-A5 Importance administering point on the safety Main board (Forward side) Caution: For continued protection against risk of fire, replace only with same type 4A/125V for FU1, 160mA/250V for FU3 . This symbol specifies type of fast operating fuse. Precaution: Pour eviter risques de feux, remplacez le fusible de surete de et FU1 comme le meme type que 5A/125V, et 160mA/250V pour FU3.
Page 4
TH-A5 Preventing static electricity 1.Grounding to prevent damage by 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.
TH-A5 Disassembly method Top cover Removing the top cover (See Fig.1) Remove the four screws A attaching the top cover on the both sides of the body. Remove the two screws B on the back of the body. Fig.1 Remove the top cover from behind in the direction of the arrow while pulling both sides outward.
Page 6
TH-A5 Removing the DVD mechanism assembly DVD mechanism assembly (See Fig.5 and 6) MPEG Prior to performing the following procedure, remove board the top cover. Disconnect the card wire from the connector J14 and J21 on the DVD MPEG board.
Page 7
TH-A5 Harness band Removing the DSP board (See Fig.9) VW12 Main board board Prior to performing the following procedure, remove the top cover, the front panel assembly and jack board. Untied the harness band and disconnect the harness from the connector CW2 on the main board.
Page 8
TH-A5 Removing the DVD power board Tie band (See Fig.12) Prior to performing the following procedure, remove the top cover, front panel assembly and DSP board. Disconnect the harness and card wire from the connector PW1, PW2 and PW5 on the DVD power board.
Page 9
TH-A5 <DVD mechanism assembly section> DVD mechanism assembly (top side) Removing the DVD loader board (See Fig.1 to 3) Prior to performing the following procedure, remove the top cover and DVD mechanism assembly. Disconnect the card wire from the connector J6 on DVD MPEG board the DVD MPEG board.
Page 10
TH-A5 DVD loading mechanism Removing the DVD traverse mechanism (top side) (See Fig.5) Prior to performing the following procedure, remove DVD traverse the top cover, DVD mechanism assembly, DVD mechanism loader board and DVD loading mechanism. Remove the four screws D attaching the DVD traverse mechanism to DVD loading mechanism.
Page 11
TH-A5 <Speaker section> Net assembly [SP-XSA5 / Satellite speaker] It is exchange in a unit. [SP-XCA5 / Center speaker] It is exchange in a unit. Boss [SP-WA5 / Woofer] Removing the speaker unit (See Fig.1 to 3) Remove the four bosses and remove the net assembly.
TH-A5 Color codes are shown below. Wiring connection Brown Blue Violet Orange Gray Yellow White 3809-001273 Green Black 3809-001294 AH39-00104A AH39-00291A DSP1 BOARD DSP2 BOARD 1-12...
TH-A5 Description of major ICs BA5983FM (U6) : 4CH driver 1.Block diagram STAND BY Level Shift Level Shift Level Shift Level Shift STAND BY CH1/2/3 2.Pin function Function Symbol Symbol Function Pin No. Pin No. Input for Bias-amplifier VO4(+) Non inverted output of CH4...
Page 17
TH-A5 2. Pin function (2/4) Name Pin No. Type Description Power 5-V supply voltage for 5V-tolerant I/O signals. VDDP 12, 20, 111, 152, 167, 181, 196 Power 3.3-V supply voltage for I/O signals VDD25 32, 44, 55, 63, 74, 87, 98, 104 Power 3.3-V supply voltage for SDRAM I/O signals...
Page 18
TH-A5 2. Pin function (3/4) Name Pin No. Type Description SDDATA[7]/VDATA2[7] Compressed data from DVD DSP. Bit 7. In parallel mode, bit 7 is the first /HDMARQ/GPIO24 (earliest in time) bit in the bitstream, while bit 0 is the last bit.
Page 19
TH-A5 2. Pin function (4/4) Name Pin No. Type Description IRRX1/GPIO0 IR Remote Receive. This input connects to an integrated (photo diode, band pass, demodulator) IR receiver. General Purpose I/O 0 IDC_CL/GPIO18 Serial clock signal for IDC data transfer. It should be pulled up to the positive supply voltage, depending on the device) using an external pull-up resistor.
Page 21
TH-A5 3. Pin function Function Pin No. Symbol 1,12,23 VD1,VD2,VD3 Digital Positive Supply 2,13,24 DGND1,DGND2,DGND3 Digital Supply Ground SPDIF Transmitter Output, Digital Audio Output 3 AUDATA3,XMT958 Host write strobe or Host data strobe or External Memory write enable or WR,DS,EMWR,GPIO10 General purpose input&...
Page 22
TH-A5 SP3721A (U7) : DVD driver 1.Pin layout 64 ~ 49 ~ 32 2.Pin function (1/2) Symbol Function Pin No. RF Signal Inputs. Differential RF signal attenuator input pins. DVDRFP DVDRFN PD1,PD2 CD Photo detector Interface Inputs. Inputs from the CD photo detector error outputs.
Page 23
TH-A5 2.Pin function (2/2) Function Symbol Pin No. SIGO Bottom Envelope Output. Bottom envelope for Mirror detection. MEVO RF signal Input for Mirror. AC coupled inputs for the mirror detection circuit from the pull-in signal output. (PI) Pull-in Signal Output. The summing signal output of A,B,C,D or PD1, PD2 for mirror detection.
Page 30
TH-A5 74VHCT244A (DIC12) : Buffer/Line driver 1. Pin layout 2. Pin function Symbol Function OE1,OE2 3-STATE Output Enable Inputs I0-I7 Inputs O0-O7 3-STATE Outputs 3. Truth table Inputs Outputs (Pins12,14,16,18) Inputs Outputs (Pins3,5,7,9) H:HIGH Voltage Level L:LOW Voltage Level I:Immaterial...
Page 31
TH-A5 CS8415A (DIC14) : Digital audio receiver 1. Pin layout 2. Pin function Pin No. Symbol Function SDA/CDOUT SCL/CCLK SDA/CDOUT Serial Control Data I/O(I2C) / Data Out(SPI) AD0/CS AD1/CDIN EMPH RXP6 AD0/CS Address Bit 0(I2C) / Control Port Chip Select(SPI)
Page 32
TH-A5 FAN8082 (U10) : DC motor driver 2. Block diagram 1.Pin layout DRIVER OUT PRE DRIVER BIAS LOGIC SWITCH 3. Pin function Pin No. Symbol Function Ground Output 1 Motor speed control Input 1 Input 2 Supply voltage (Signal) Supply voltage (Power)
Page 33
TH-A5 CS4228A (DIC15) : D/A converter 1. Pin layout 2. Pin function Pin No. Symbol Function SDIN1 SDIN3 SDIN2 CENTER 1,2,3 SDIN2 Serial Audio Data In SDIN1 SDIN3 SDOUT Serial Audio Data Out SDOUT SCLK SCLK Serial Clock LRCK LRCK...
Page 34
TH-A5 VICTOR COMPANY OF JAPAN, LIMITED AUDIO & COMMUNICATION BUSINESS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan 200201(V) (No.21060)
TH-A5 Block diagrams Main section V F D TUNER CL CE DI UIC10 UIC1 MICROCONTROLLER VFD DRIVER FIC6 FIC5 6ohm AUX L TUN L (35W) FIC11 POWER FIC12 AUX R TUN R 6ohm DIC11 39-41 (1/2) (35W) FIC4 (2/2) 6ohm...
Page 36
TH-A5 TH-A5 DVD mecha block section U7 RF AMP SP3721 RF AGC TRACKING RF&FOCUS &EQ ERROR ERROR Parallel/serial DECK ASS’ Y M5701 CONTROL I/V AMP I/V AMP DVD Interface 4M DRAM MICOM DVD ROM APC.LASER FOCUS OK CONTROLLER CONTROL& DETECT DEFECT...
Page 37
TH-A5 Standard schematic diagrams FL display & System control section / Power supply section Sheet 4/6 SHEET CIRCUIT DESCRIPTION NUMBER FL display & System control / Power supply Main Video signal output DVD loader DVD MPEG Parts are safety assurance parts.
Page 38
TH-A5 TH-A5 Main section To Tuner Pack To DW14 Sheet 4/6 To DW10 Sheet 4/6 To PW5 Sheet 1/6 To DW13 Sheet 4/6 Tuner signal Front signal Center signal Rear signal SHEET 2/6...
Page 40
TH-A5 TH-A5 DSP section Sheet 3/6 Sheet 1/6 Sheet 6/6 Sheet 2/6 FIC1 FIC12 Tuner signal Front signal Rear signal Digital audio signal Center signal SHEET 4/6...
TH-A5 PARTS LIST [ TH-A5 ] * 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)XV-THA5 3- 4 Exploded view of general assembly and parts list (Block No.M2)SP-WA5...
Page 51
TH-A5 Exploded view of general assembly and parts list Block No. (XV-THA5)
Page 52
TH-A5 Parts list (General assembly) Block No. M1MM Item Parts number Parts name Q'ty Description Area SCREW-TAPPING 2 FH 3*10 BLK 6002-000126 6003-000398 SCREW-TAP TITE 16 BH 2S 3*6 YEL 6003-000276 SCREW-TAP TITE 27 BH M3*10 YEL AH60-10107A SCREW-TAP TITE...
Page 53
TH-A5 Exploded view of general assembly and parts list Block No. (SP-WA5) Parts list (GEneral assembly) SP-WA5 Block No. M2MM Item Description Parts number Parts name Q'ty Area AA000026-01 CABINET CR200027-01 SPEAKER LE10020-007A 70-059-416-02 SCREW PACKING RING 29-100-086-01 53-000-158-11 ORNAMENT...
Page 55
TH-A5 DVD mechanism assembly and parts list Block No. DVD MPEG board DVD loader board...
Page 56
TH-A5 Parts list (DVD mechanism) Block No. MJMM Item Parts number Parts name Q'ty Description Area BASE-MAIN 1 BLK AH61-00746A AH63-00294A TRAY-DISC 1 D/GRAY AH66-00159A LEVER-LIFT 1 BLK AH66-00160A PULLEY-MOTOR GEAR-PULLEY AH66-00161A AH66-00162A GEAR-MIDDLE AH66-00163A GEAR-TRAY CLAMPER-UPPER 1 UPPER AH66-00164A...
Page 57
TH-A5 Block No. 01 Electrical parts list (Main board)) Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area AR48 2007-000097 CHIP RESISTOR C43C 2401-000909 E.CAPACITOR 0402-001077 BRIDGE DIODE C43FL 2401-000909 E.CAPACITOR 0402-001258 BRIDGE DIODE C43FR 2401-000909 E.CAPACITOR...
Page 58
TH-A5 Electrical parts list (Main board)) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area 0401-001090 DIODE 3601-001245 FUSE 0401-001090 DIODE 3601-000184 FUSE 0401-001090 DIODE HFU1 3602-000147 FUSE-CLIP 250V D35C 0401-001090 DIODE...
Page 59
TH-A5 Electrical parts list (Main board)) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area 0502-000303 TRANSISTOR Q22FL 0501-000010 TRANSISTOR 1203-001586 Q22FR 0501-000010 TRANSISTOR 1203-001697 78R08 T0-220 4P Q22RL 0501-000010 TRANSISTOR 1203-001006...
Page 60
TH-A5 Electrical parts list (Main board)) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area Q32RL 0502-001210 TRANSISTOR R118 2007-000086 CHIP RESISTOR Q32RR 0502-001210 TRANSISTOR R119 2007-000097 CHIP RESISTOR Q32W 0502-001210 TRANSISTOR...
Page 61
TH-A5 Block No. 01 Electrical parts list (Main board)) Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R34RL 2007-000402 CHIP RESISTOR 2007-000091 CHIP RESISTOR R34RR 2007-000402 CHIP RESISTOR 2007-000090 CHIP RESISTOR R34W 2007-000402 CHIP RESISTOR...
Page 62
TH-A5 Electrical parts list (Main board)) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R83FR 2007-000082 CHIP RESISTOR R93RR 2007-000076 CHIP RESISTOR R83RL 2007-000082 CHIP RESISTOR R93W 2007-000076 CHIP RESISTOR R83RR...
Page 63
TH-A5 Electrical parts list (Main board)) Block No. 01 Item Parts number Parts name Remarks Area ZD6FL 0403-001079 ZENER DIODE ZD6FR 0403-001079 ZENER DIODE ZD6RL 0403-001079 ZENER DIODE ZD6RR 0403-001079 ZENER DIODE ZD6W 0403-001079 ZENER DIODE 3-14...
Page 64
TH-A5 Electrical parts list (DSP board)) Block No. 02 Item Remarks Parts number Parts name Area Item Parts number Parts name Remarks Area CC11 2401-000407 E.CAPACITOR DC37 2203-005005 CHIP CAPACITOR CC12 2401-000650 E.CAPACITOR DC38 2203-000257 CHIP CAPACITOR CC13 2401-001238 E.CAPACITOR...
Page 65
TH-A5 Electrical parts list (DSP board)) Block No. 02 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area DR47 2007-000078 CHIP RESISTOR FC58R 2203-000531 CHIP CAPACITOR DR501 2007-000090 CHIP RESISTOR 2401-000407 E.CAPACITOR DR51 2007-000078 CHIP RESISTOR...
Page 66
TH-A5 Block No. 02 Electrical parts list (DSP board)) Item Parts number Parts name Remarks Area Item Remarks Parts number Parts name Area FR54L 2007-000123 CHIP RESISTOR RR25R 2007-000078 CHIP RESISTOR FR54R 2007-000123 CHIP RESISTOR SC11 2401-000407 E.CAPACITOR 2007-000098 CHIP RESISTOR...
Page 67
TH-A5 Electrical parts list (DSP board) Block No. 02 Item Parts number Parts name Remarks Area UR37 2007-000074 CHIP RESISTOR UR38 2007-000098 CHIP RESISTOR UR39 2007-000074 CHIP RESISTOR 2007-000078 CHIP RESISTOR UR40 2007-000074 CHIP RESISTOR UR41 2007-000074 CHIP RESISTOR UR42...
Page 68
TH-A5 Electrical parts list (FRont board) Block No. 03 Electrical parts list (Jack board) Block No. 04 Item Parts number Parts name Remarks Area Item Remarks Parts number Parts name Area 3708-000451 CONNECTOR 2201-000783 C.CAPASITOR 3711-000906 CONNECTOR 0603-001069 OPTICAL JACK...
Page 69
TH-A5 Block No. 05 Electrical parts list (DVD loarder board) Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area 2401-001975 E.CAPACITOR 2203-000972 CHIP CAPACITOR CE10 2401-001975 E.CAPACITOR 2203-005005 CHIP CAPACITOR CE11 2401-001975 E.CAPACITOR 2203-001126 CHIP CAPACITOR...
Page 70
TH-A5 Block No. 05 Electrical parts list (DVD loarder board) Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R118 2007-000084 CHIP RESISTOR 2007-000113 CHIP RESISTOR R119 2007-000084 CHIP RESISTOR 2007-000113 CHIP RESISTOR 2007-000113 CHIP RESISTOR...
Page 71
TH-A5 Block No. 05 Electrical parts list (DVD loarder board) Item Parts number Parts name Remarks Area 0903-001246 1203-001369 1203-001293 1003-001305 1201-001790 3708-001574 CONNECTOR 2801-000261 CRYSTAL 0403-000357 DIODE 3-22...
Page 72
TH-A5 Block No. 06 Electrical parts list (MPEG board) Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C101 2203-005005 CHIP CAPACITOR 3301-001495 BEAD C102 2203-000257 CHIP CAPACITOR 3301-000353 BEAD C103 2203-005005 CHIP CAPACITOR 3301-000353...
Page 73
TH-A5 Electrical parts list (MPEG board) Block No. 06 Item Parts number Parts name Remarks Area 2007-000113 CHIP RESISTOR 2007-000113 CHIP RESISTOR 2007-000113 CHIP RESISTOR 2007-000113 CHIP RESISTOR 2007-000113 CHIP RESISTOR 2007-000070 CHIP RESISTOR 2007-000113 CHIP RESISTOR 2007-000084 CHIP RESISTOR...
Page 75
TH-A5 Packing materials and accessories parts list Block No. Block No. A10(Short) A11(Long) A1,A2,A3,A4, A5,A6,A7,A8 XV-THA5 SP-WA5 SP-XTHA5 3-26...
Page 76
TH-A5 Parts list (Packing) Block No. M3MM Item Parts number Parts name Q'ty Description Area AH69-00532A CUSHION-SIDE,L 1 SET AH69-00533A CUSHION-SIDE,R 1 SET AH69-00552A PACKING-CASE 1 SET AH69-10081H POLY BAG 1 SET AH69-00525B POLY BAG 1 INST BOOK AH69-00665A PAD-ROLL...