Philips-DVP-3111-Service-Manual电路原理图.pdf

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1、DVD PLAYER DVP3111/12/51/58/77/98/79 Published by BU AVM CY SL Printed in the Netherlands Subject to modification 3141 785 34160 Version 1.0 TABLE OF CONTENTS Chapter Technical Specification, PCBs Location. 1 Safety Instruction 2 Instruction for Use 3 Mechanical and Dismantling Instructions. 4 Troub

2、leshooting . 5 Overall Block Diagram 6 Electrical Diagram 7 Exploded View Diagram 3. Reading the USB or CD-ROM，in accordance with prompt，press ”OK” key to upgrade. Warning: Do not unplug the AC adapter during firmware upgrade to prevent flash corrupt of the set! Procedure to check SW version of your

3、 DVD Portable 1. OPEN 2. Press SETUP MENU 3. Select Preferences 4. Select Version Info 5. Press “OK” key1-3BarthService2.0 Safety instruction 1. General safety Safety regulations require that during a repair: . Connect the unit to the mains via an isolation transformer. . Replace safety components i

4、ndicated by the symbol Only by components identical to the original ones. Any Other component substitution (other than original type) May increase risk of fire or electrical shock hazard. Safety regulations require that after a repair, you must Return the unit in its original condition. Pay, in part

5、icular, Attention to the following points: . Route the wires/cables correctly, and fix them with the mounted cable clamps . Check the insulation of the mains lead for external Damage . Check the electrical DC resistance between the mains Plug and the secondary side: 1) Unplug the mains cord, and con

6、nect a wire between The two pins of the mains plug. 2) Set the mains switch the “on” position (keep the Mains cord unplug). 3) Measure the resistance value between the mains plug and the front panel, controls, and chassis bottom. 4) Repair or correct unit when the resistance measurement is less than

7、 1M 5) Verify this, before you return the unit to the customer/user (ref. UL-standard no. 1492). 6) Switch the unit “off”, and remove the wire between the two pins of the mains plug. 2. Laser safety This unit employs a laser. Only qualified service personnel May remove the cover, or attempt to servi

8、ce this device (due to possible eye injury). Laser device unit Type :Semiconductor laser GaAIAs Wavelength :650nm (DVD) :780nm (VCD/CD) Output power :7mW(DVD) :10mW(DVD/CD) Beam divergence:60 degree Note: Use of controls or adjustments or performance of procedure other than those specified herein, m

9、ay result in hazardous radiation exposure. Avoid direct exposure to beam.2-1BarthService3.0 INSTRUCTION FOR USE You can download this information from the following websites: http:/ http:/ 3-1BarthService4.0 MECHANICAL AND DISMANTLING INSTRUCTIONS The following guidelines show how to dismantle the p

10、layer. Step1: Remove 5 screws around the Top Cover, and then remove the Top Cover(Figure1) Figure 1 Step2:If the tray cant open in normal way, you can make it through the instruction as below (Figure2) Figure 2 Step3: If it is necessary to dismantle Loader or Front Panel, the Front door should be re

11、moved first(Figure3) 4-1Figure 3 BarthServiceFigure 5 Step4: Remove the 10 screws on board to dismantle the DVD BOARD & POWER BOARD & LED BOARD (Figure 4&5) Figure4 4.0 MECHANICAL AND DISMANTLING INSTRUCTIONS 4-2BarthServiceSpindle motor does not move Yes Yes NoNoNoNoYes Check whether “MO_VCC” (VCC)

12、 voltage is normal.Correct connectionCheck the MOVCC power supplyCheck/Replace Q10Q11.Check/ Replace U1.Check opu focus1. Check U2 25pin FOO signals 2.If there are F+, F-, T+ and T- signals output from U1.Check/Replace the loaderYes Yes NoGoCheck whether laser voltage (1.9V for CD & 2.3V for DVD) on

13、 L21 & L22Check the FFC connection between 24P and the loader.1. Whether voltage on pin 23 of U2 varies between 0 and 3.3V (3.3V for CD and 0V for DVD), 2. Whether peripheral components are eroded or badly soldered.Trouble shooting chart Motor not move 5-1BarthServiceThe power can not be on or off G

14、oYes Yes NoNoThe power cant be on or offYes Replace the power boardCheck the power supply on the power board and the connection to to decoder board is normal.Check/Correct connectionWhether the connection to Standby Board is broken. Correct the connection Replace U1.NoNoYes Yes Check if the CON2 on the front board to J 6(7PIN) on the decoder board is in good contact.Whether there is 0V or 3.3V voltage difference on Pin41 of U2 Trouble shooting chart or correct the connection5-2BarthService