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DVD Player
DVP3156, DVP3160K DVP3166(K)
DVP3160K/55/77/78
DVP3166/94,DVP3166X/94
DVP3166K/93
DVP3156/93
Service
Service Manual
TABLE OF CONTENTS
Page
. Technical Specifications……………………………………...................1-2
. Safety Instruction, Warning & Notes….……………………….....….....1-3
. Mechanical and Dismantling Instructions………….............................2-1
. Region Code, Software Version& Upgrades……………......................3-1
. Tr
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1-2 Technical Specifications TV standard (PAL/50Hz) (NTSC/60Hz) Audio performance Number of lines 625 525 DA converter 24bits, 192KHz Playback Multi standard (PAL/NTSC) DVD fs 96kHz 4Hz----44kHz fs 48kHz 4Hz----22kHz SVCD fs 48kHz 4Hz----22kHz Video performance fs 44.1kHz 4Hz----20kHz CD/ VCD fs 44.1kHz 4Hz----20kHz Video DAC 12
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1-3 Safety instruction, Warning & Notes Safety instruction 1. General safety 2.Laser safety Safety regulations require that during a repair: This unit employs a laser. Only qualified service personnel . Connect the unit to the mains via an isolation transformer. may remove the cover, or attempt to service this device . Replace safety components indicated by the symbol , (due to possible eye injury). only by components identical to the original ones. Any Laser device unit other compon
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1-4 Warning 1.General 2. Laser . All ICs and many other semiconductors are susceptible to . The use of optical instruments with this product, will electrostatic discharges (ESD). Careless handing during increase eye hazard. repair can reduce life drastically. Make sure that, during . Only qualified service personnel may remove the cover repair, you are at the same potential as the mass of the or attempt to service this device, due to possible eye set by a wristband with resistance. Keep co
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1-5 Notes Lead-Free requirement for service INDENTIFICATION: Use only original spare-parts listed in the Regardless of special logo (not always indicated) Service-Manuals. Not listed standard-material (commodities) has to be purchased at external One must treat all sets from 1.1.2005 onwards, according companies. next rules. Special information for BGA-ICs: Important note: In fact also products a little older can also - always use the 12nc-recognizable soldering be treated
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2-1 Mechanical and Dismantling Instructions Dismantling Instruction The following guidelines show how to dismantle the player. Step1: Remove 5 screws around the Top Cover, then remove the Top Cover (Figure 1). Figure 1 Step2: If it is necessary to dismantle Loader or Front Panel, It should be remove the Front door assembly first. (Figure 2) Note: Make sure to operate gently otherwise the guider would be damaged. Please kindly note that dismantle the front door assembl
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2-2 Mechanical and Dismantling Instructions Dismantling Instruction Step3: If the tray can’t open in normal way, you can make it through the instruction as below (Figure 3). Note: Make sure to operate gently otherwise the guider would be damaged. Push the guider until the tray out. Make sure to operate gently to avoid damage happening. Figure 3 Step4: Dismantling Loader, disconnect the 3 connectors aim
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2-3 Mechanical and Dismantling Instructions Dismantling Instruction Step5: Dismantling Front Panel, disconnect the 3 connector, then release the snaps on the both sides of Front Panel and bottom cabinet , then gently pull the Panel out from the set. (Figure 5 & 6 & 7) CON 6 CON 5 CON 4 Figure 5 Snap 2 Snap 1 Figure 6 Figure 7
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2-4 Mechanical and Dismantling Instructions Dismantling Instruction Step6: Dismantling Main Board, first disconnect the connector, and then remove 4 screws. (Figure 8) CON 8 Figure 8 Step7: Remove the 2 screws on Power Board to dismantle the Power Board. (Figure 9) Figure 9
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3-1 Software upgrade Preparation to upgrade software B. Read out the software versions to confirm upgrading 1) Start the CD Burning software and create a new CD 1) Power on the set and press button on the project (Data Disc) with the following setting: remote control. Label: DVP3XXX (No need the label name) 2) Press<1><3><7><9>button to check the software File Name: DVPXXXX_XX.BIN information. Power on the set and open the tray, then press <5><5> The software version and other
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Trouble shooting chart 4-1 Spindle motor does not move Remark: Trouble shooting chart for DVP3160K/XX Motor no move Go Check the FFC connection No Correct connection between 24P and the loader. Yes Check whether “AVCC” No Check the AVCC power (+5V) voltage is normal. supply Yes Check whether laser voltage No Check/Replace Q6 Q5. (2V for VCD & 2.2V for DVD) on Collector of Q6 and Q5 Yes 1.Whether voltage on pin 112 of U2 varies between 0 and 3.3V (3.3V for No VCD and 0V for DVD),
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4-2 Trouble shooting chart The power can not be on or off Remark: Trouble shooting chart for DVP3160K/XX The power can’t be on or off Go Check the power supply No Repair the power board on the power board is normal. Yes Check if the CON301 on No the front board to CN5 on Yes Check/Correct connection the decoder board is in good contact. Yes Whether the connection No Correct the connection to K301 is broken. Yes Whether there is 0V and No Replace U2. 3.3V voltage
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4-3 Trouble shooting chart All output voltages on the power board is 0V or deviated. Remark: Trouble shooting chart for DVP3160K/XX All output voltages on the power board is 0V or deviated Yes Check whether Yes Replace F1 F1 is blown No No Replace C4 if D1, D2, D3, D4 Check whether are normal. there is 300V on C4. Yes Check whether 100KHz No oscillating signal on Check/ replace U1. Pin6 of U1 U1(PIN 8 - Drain waveform) U1(PIN 3 - RC waveform) Yes Check if +5V, +12V, -12V
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4-4 Trouble shooting chart Disc cannot be read. Remark: Trouble shooting chart for DVP3160K/XX Disc cannot be read. Yes No Check the FFC connection Check the loaded circuit between 24P and the loader. Yes 1.Check voltage on pin 112 of U2 varies between 0 and 3.3V: Check whether there is laser No 3.3V for VCD voltage (2V for VCD and 2.2V for 0V for DVD DVD) on Collector of Q6 &Q5 2.Check whether peripheral components are eroded or defect Yes CheckU2,U3,andperipheral No Re-sol
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4-5 Trouble shooting chart Only DVD disc or only disc except DVD can be played Remark: Trouble shooting chart for DVP3160K/XX Only DVD disc, or only disc except DVD can be Played. Go Check the FFC No Check the loaded circuit connection between 24pin and the loader. Yes Check laser voltage (2V) output Check the solder status on U2 and No on Collector of Q6, if pin 23 of peripheral components U2 is at low level. Yes No Check whether there check if bad solder exist on U2 and is volta
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4-6 Trouble shooting chart No display on LEDD, and buttons do not work Remark: Trouble shooting chart for DVP3160K/XX No display on LED, and buttons do not work Yes Check whether there is No correct contact Correct connection between CON301 and CN5 Yes Check VCC(+5v) voltage No Fix power supply board top a power on the power and front supply for should electric circuit board Yes Check there are CS, DATA No Check the U2’s pin 97 98 100 and CLK signals on CON301 arrive the CN5 c
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4-7 Trouble shooting chart Distorted audio and loud noise Remark: Trouble shooting chart for DVP3160K/XX Distorted audio and loud noise Yes Check the power supply voltages +12V and -12V to the operation No Check Q15 amplifying Q15 IS normal. Yes Check whether the No Replace Q7 Q8 muting transistor Q7 Q8 are normal Yes Check whether the No Replace Q26,Q30,Q31 muting transistor Q26, Q30,Q31,are normal Yes Checking the U10 leads No have not been broken or Correct connection
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4-8 Trouble shooting chart Abnormal color of video picture Remark: Trouble shooting chart for DVP3160K/XX Abnormal color of video picture Yes No Check whether the Check Y1, R15, R217, C17 and C18 27MHz output signal is Yes Check whether the 3.3V No Check other of power supply electric and 1.8V power supply circuit voltages on the decoder board are normal. Yes Check whether the No video filter network Correct the connection circuit is normal. Yes Change U2
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4-9 Trouble shooting chart Remark: Trouble shooting chart for Remote reception is insensitive or fails. DVP3160K/XX Remote reception is insensitive or fails. Go No Check if the remote Check battery control works properly. Yes Check if the power supply No Check R315 C315 on the front board voltage to the remote censor is normal are normal. Yes Use an oscilloscope to check if there is No output waveform from the first pin IR of the Check the PIN 11 RC waveform of IC1 remote censor
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4-10 Trouble shooting chart No video picture, no sound. Remark: Trouble shooting chart for DVP3160K/XX No video picture, no sound. Go No Check whether all the voltages from the power board to the Check the loaded circuit CVBS(R85 point) waveform decoder board are normal. Yes Check if the reset circuit consisting No of CE10, and D3 is normal (at a Change CE10, and D3. high level for tens of milliseconds, then constantly at 0V). 27M waveform Yes Crystal oscillator Y1 and No Check w
