Philips-DVP-3326-Service-Manual电路原理图.pdf

《Philips-DVP-3326-Service-Manual电路原理图.pdf》由会员分享，可在线阅读，更多相关《Philips-DVP-3326-Service-Manual电路原理图.pdf（39页珍藏版）》请在收音机爱好者资料库上搜索。

1、DVD Player DVP3326/94Published by BU AVM FK Printed in the Netherlands Subject to modification Version 1.0 TABLE OF CONTENTS Chapter Technical Specification 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 upgra

2、de to prevent flash corrupt of the set! Procedure to check SW version of your DVD Portable 1. OPEN 2. Press SETUP MENU 3. Select Preferences 4. Select Version Info 5. Press “OK” key2.0 Safety instruction 1. General safety Safety regulations require that during a repair: . Connect the unit to the mai

3、ns via an isolation transformer. . Replace safety components indicated 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, yo

4、u must Return the unit in its original condition. Pay, in particular, 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

5、Plug and the secondary side: 1) Unplug the mains cord, and connect 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) Repai

6、r or correct unit when the resistance measurement is less than 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 qualifi

7、ed service personnel May remove the cover, or attempt to service 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

8、 performance of procedure other than those specified herein, may result in hazardous radiation exposure. Avoid direct exposure to beam.3.0 INSTRUCTION FOR USE You can download this information from the following websites: http:/ http:/ 4.0 MECHANICAL AND DISMANTLING INSTRUCTIONS The following guidel

9、ines show how to dismantle the player. 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 Step2: If it is necessary to dismantle Loader or Front Pa

10、nel, the Front door should be removed first(Figure3) Figure3 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 插IC1位置:DVP3336用SD4842P. DVP3320/3326用插IC3位置:CYT431 插IC1位置:DVP3336用SD4842P. DVP3336和D

11、VP3320/3326共用此IC用SD4841P. DVP3336和DVP3320/3326共用此 PCB板插IC1位置:DVP3320/3326用SD4841P. 用此 板Spindle motor does not move Yes Yes NoNoNoNoYes Check whether “MO_VCC” (VCC) voltage is normal.Correct connectionCheck the MOVCC power supplyCheck/Replace Q13Q10.Check/ Replace U2.Check opu focus1. Check U2 25pin

12、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 L23 & 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