TH-A10 Safety precautions 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.
TH-A10 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. 1.1. Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as DVD players.
TH-A10 Dismantling and assembling the traverse unit 1. Notice regarding replacement of optical pickup 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 to the optical pickup or connected devices.
TH-A10 Disassembly method Top cover <Main body> Removing the top cover (See Fig.1 and 2) Remove the four screws A attaching the top cover (Use an Allen wrench). Joints a Lift up the front part of the top cover to release the two joints a and remove the top cover toward the front.
TH-A10 Removing the front panel assembly (See Fig. 6 to 9) Prior to performing the following procedure, remove the top cover, the rear cover and the side covers. Disconnect the harness from connector CN802 on the main board on the upper side of the body.
TH-A10 Removing the right and left corner covers (See Fig.10 and 11) Prior to performing the following procedure, remove the top cover, the rear cover, the side covers and the front panel assembly. It is not necessary to remove the front panel assembly.
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TH-A10 Removing the DVD servo control board Analog I / O board Digital I / O board (See Fig.15 to 17) CN681 CN201 Prior to performing the following procedure, remcover and the right side cover.ove the top cover, the rear Remove the three screws G and pull the DVD servo control board case upward.
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TH-A10 Removing the analog I / O board / the Analog I / O board Digital I / O board digital I / O board (See Fig.18 and 19) CN681 CN201 Prior to performing the following procedure, remove the top cover and the rear cover.
TH-A10 DVD mechanism cover Removing the DVD mechanism assembly (See Fig.22 and 23) Prior to performing the following procedure, remove the top cover, the rear cover, the front panel assembly, the DVD servo control board case, the analog I / O board, the digital I / O board and the tuner board.
TH-A10 Removing the power transformer assembly Rear panel (See Fig.24 and 25) Prior to performing the following procedures, remove the top cover and the rear cover. Disconnect the harnesses from connector CN911 and CN912 on the power board. Fig.24 Remove the two screws M attaching the power transformer assembly.
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TH-A10 Removing the eject board (See Fig.28) Eject board Switch board Disconnect the harness from connector CN702 on the eject board. Remove the three screws P attaching the eject board. CN702 Removing the LCD board (See Fig.29) Remove the four screws Q attaching the LCD board.
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TH-A10 Loading tray <Removing DVD mechanism unit> Removing the clamper base (refer to Figure 1) o Remove the top cover. o Remove the DVD mechanism unit. 1. Remove the two screws at A fixing the clamper base. Clamper base Removing the loading tray (refer to Figures 2 - 4) o Remove the clamper base.
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TH-A10 Traverse mechanism unit Removing the traverse mechanism unit (refer to Figure 5) o Remove the loading tray. 1. Remove the three screws at B fixing the traverse mechanism unit. Protecting the optical pickup o Solder the flexible ground point on the optical pickup when replacing the pickup or before detaching the mechanism control board.
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TH-A10 Traverse chassis Removeing the turntable and spindle motor assemby (refer to Figures 8 - 9) o Remove the traverse mechanism unit. o Solder the flexible ground point on the optical pickup. (Figure 6) o Remove the mechanism control board.
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TH-A10 Loading base Lever Removeing the loading mechanism parts (refer to Figures 10 - 11) o Remove the clamper base. Up-down cam o Remove the disk tray. Pawl A 1. Turn the lever counterclockwise until it stops (position 1), while pushing the switch lever in the direction of the arrow and pushing up the pawl at A using a screwdriver.
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TH-A10 Disassembly method <Speaker> Amplifier assembly Removing the amplifier assembly (See Fig.1) Remove the twelve screws A attaching the amplifier assembly on the back of the body. Move the amplifier assembly backward and disconnect the harness from connector CN109 in the lower part of the amplifier assembly.
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TH-A10 Removing the preamplifier board Main amplifier board Amplifier assembly (See Fig.4 to 6) Prior to performing the following procedure, remove the heat sink cover and the amplifier cover. Braket Remove the two screws E attaching the preamplifier Heat sink board to the bracket.
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TH-A10 Removing Power Amplifier Board(See Fig.7 and 8) Prior to performing the following procedure, remove the heat sink cover, the amplifier cover, the preamplifier board and the power spply & SP terminal board. Disconnect the harness from connector CN104 on the power amplifier board.
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TH-A10 Removing the power amplifier board (B) Joint c (See Fig.9 and 11) Prior to performing the following procedure, remove the heat sink cover, the amplifier cover, the Hooks preamplifier board, the power spply & SP terminal CN106 board and the main amplifier board.
1. The CD jitter meter is connected between GND and P12. The RF level is observed at the same time. 2.The first test disk(CTS-1000) made of JVC is reproduced. 3.It is confirmed that RF LEVEL is 360 100mVp-p. 5. When there is disorder in the waveform road cuts etc, test disk is exchanged and measured.
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TH-A10 (4) Flap adjustment of the Pick-up guide shaft 1) Make sure that there is no disc on the tray. 2) Press both the "PLAY" and "OPEN/CLOSE" keys of the main unit to activate the primary power and ∗ ∗ ( ∗ ∗ ; Version3, ;...
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TH-A10 Confirmation after adjustment. Confirm to reproduce video CD and CD after the DVD test disc is adjusted and to find abnormality. Fig.2 (5) About keeping the disc As for the DVD test disc, plane accuracy is demanded.Please note the keeping place on the disc.
TH-A10 Precautions for Service Handling of Traverse Unit and Laser Pickup 1. Do not touch any peripheral element of the pickup or the actuator. 2. The traverse unit and the pickup are precision devices and therefore must not be subjected to strong shock.
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TH-A10 3. Pin function Pin Name Function AINR Rch Analog Input Pin ZEROR Rch Zero Input Pin AINL Lch Analog Input Pin ZEROL Lch Zero Input Pin VREFR Rch Vopltage Reference Output Pin. 2.5V Normally connected to AGND with a 0.1uF ceramic capacitor in parallel with an electrolytic capacitor less than 10uF.
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TH-A10 AK93C65AF-X (IC590) : EEPROM 1.Pin layout 8 PIN SOP 2.Block diagram DATA REGISTER R/W AMPS AUTO ERASE EEPROM INSTRUCTION REGISTER INSTRUCTION DECODE, CONTROL 4096bit 256 x 16 CLOCK ADD. DECODER GENERATION BUFFERS VPP SW VREF GENERATOR 3.Pin function Pin no.
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TH-A10 3.Pin function AN8706FHQ (1/2) Pin No. Symbol Functions LDONB Laser ON (CD Head) terminal LDONA Laser ON (DVD Head) terminal LPCOA Laser drive output terminal LPC1 Laser PIN input terminal VHARF VHALF voltage output terminal TGBAL Tangential phase balance control terminal...
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TH-A10 AN8706FHQ(2/2) Pin No. Symbol Functions VCC5 Power terminal 5 (3.3V) IDGT Data slice part address part gate signal input terminal (For RAM) DTRD Data slice data read signal input terminal(For RAM) CAPA Data slice CAPA(Address)signal input terminal (For RAM)
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TH-A10 BA5983FM (IC271) : 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...
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TH-A10 HY57V161610DTC8 or KM416S1120DT-G8 (IC504,IC505) : 16MB SDRAM 1.Block diagram Clock Generator Bank B Address Bank A address buffer & Mode Refresh register counter Sense amplifier Column decoder Column & latch circuit address buffer & burst Data counter counter 2.Pin function Pin No.
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TH-A10 JCE8011(IC551):GRAPHIC CONTROLLER Pin No. Symbol Function VD0~7 DVD Image signal input (Multi plex data Y,Cr,Cb) VCLKI Dot clock signal input (27MHz) HSYNCI The horizontal synchronous signal input VSYNCI Vertical synchronous signal input Power supply VCLKD Dot clock signal output (27MHz)
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TH-A10 MN102LP25G-01(IC401):UNIT CPU Function Symbol Symbol Function Pin No. Pin No. Micon wait signal input Detection switch of tray close WAIT SWCLOSE Read enable Detection switch of tray open SWOPEN Driver mute Serial enable signal for ADSC MUTE ADSCEN Write enable...
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TH-A10 3.Function MN103007BGA(1/2) Symbol Function Symbol Function Pin NO. Pin NO. HDD15 ATAPI data CPUADR8 System control address CPUADR7 HDD0 ATAPI data System control address HDD14 ATAPI data CPUADR6 System control address CPUADR5 5VDD System control address HDD1 ATAPI data...
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TH-A10 MN103007BGA(2/2) Symbol I/O Function Symbol I/O Function Pin NO. Pin NO. ATAPI slave master diagnosis input Land / group switch NPDIAG NTRON Tracking ON ATAPI host address DACDATA Cereal output ATAPI output of selection of width DACLRCK L and R identification output...
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TH-A10 MN103007BGA(3/4) Symbol Function Pin NO. Land / group switch NTRON Tracking ON DACDATA Cereal output DACLRCK L and R identification output DACCLK Clock for cereal output IPFLAG Interpolation flag input BLKCK Sub-code,Block clock input LRCK L and R identification signal output OSCI1 16.9MHz oscillation...
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TH-A10 MN103007BGA(4/4) Symbol Function Pin NO. NPDIAG ATAPI slave master diagnosis input ATAPI host address IOCS16 ATAPI output of selection of width of host data bus INTRQ ATAPI host interruption output 5VDD NDMACK ATAPI host DMA response IORDY ATAPI host ready output...
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TH-A10 3.Pin function MN67705EA (1/3) Pin No. Symbol Function H fixation LDONA Laser drive controlA (ON / OFF) LDONB Laser drive controlB (ON / OFF) PULIN DSL and PLL high boost signal (FEP) Head amplifier gain H/L selection DVSS Ground for digital circuit...
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TH-A10 MN67705EA (2/3) Pin No. Symbol Function IREF3 Connects with unused DVSS VCOF2 Connects with unused DVSS DVSS Ground for digital circuit VCOE3 Connects with unused DVSS DVSS Ground for digital cirucuit DVDD Power supply for digital cirucuit SUBC CD sub-code (ODC)
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TH-A10 MN67705EA(3/3) Pin No. Symbol Function FS (FEP) FS(AD2) TS (FEP) TS(AD1) Ground for analog cirucuit AVSS Power supply for analog circuit AVDD Focus balance(FEP) FBAL(DA1) Cutting off frequency (FEP) FC(DA2) Amount of boost (FEP) BOOST(DA3) DSL offset balance (FEP)
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TH-A10 UPD42280GU-30-X (IC552) : 2M FRAM 2.Pin Function 1.Terminal Layout Symbol Pin No. Function Data input DI0~DI3 Write enable input Connect to GND Connect to GND TEST Write reset input WRST Write clock input Powre supply +5V Data input 11~14...
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TH-A10 3.Function MN103007BGA(1/2) Symbol Function Symbol Function Pin NO. Pin NO. HDD15 ATAPI data CPUADR8 System control address CPUADR7 HDD0 ATAPI data System control address HDD14 ATAPI data CPUADR6 System control address CPUADR5 5VDD System control address HDD1 ATAPI data...
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TH-A10 Pin Function (2/3) Function Symbol Symbol Function Pin No. Pin No. Connect to TP564 Connect to GND E-VSS ARAM-ADDR14 Test pin Address output to IC508,504 TEST-PIN1 M-ADDR11 Data bus I/O to IC508,IC504 Address output to IC508,504 M-ADDR8 M-DATA15 Data bus I/O to IC508,IC504...
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TH-A10 Pin Function (3/3) Function Symbol Symbol Function Pin No. Pin No. Connect to TP507 DVD image signal output VDATA1 A-VDD Dot clock signal output (27MHz) Power supply VCLK I-VDD Connect to TP505 DVD image signal output VDATA2 SYSCLK Connect to GND...
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TH-A10 VICTOR COMPANY OF JAPAN, LIMITED AUDIO & COMMUNICATION BUSINESS DIVISION PERSONAL & MOBILE NETWORK B.U. 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan No.20890 200101(S)