Philips-DVP-3256-K-Service-Manual电路原理图.pdf

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1、3139 785 33420 TABLE OF CONTENTS Page Version 1.0 Service Manual DVP3256K DVP3256K/93 Technical Specifications.1-2 . Safety Instruction, Warning 50/60 Hz Power consumption to check the File Name. Note: It is required capital letter for the File System name. 2) Burn the data onto a blank CDR A. Proce

2、dure for software upgrade: 1) Power on the set and insert the prepared Upgrade CDR. 2) The set will starts reading disc & response with the following display TV screen: Upgrade File DETECTED Upgrade? Press Play TO START. 3) Press button to confirm, then screen will display : Files coping UPGRADING 4

3、) The upgraded tray will automatically open when files coping complete, then take out the disc. 5) About 1 minute later, the trace will automatically close when upgrading complete. B. Read out the software versions to confirm upgrading 1) Power on the set and press button on the remote control. 2) P

4、ress button. The software version and other information are display on the TV screen as follows: Version XX.XX.XX.XX (Main version) SUB-VER XX.XX.XX.XX (software version of application software) 8032 XX.XX.XX.XX Servo XX.XX.XX.XX (software version of Servo) RISC XX.XX.XX.XX DSP XX.XX.XX.XX Region Co

5、de X 3-1 Caution: The set must not be power off during upgrading, Otherwise the Main board will be damaged entirely. 3 2 How to select the right language If the language is not right, it can be corrected by the following operation: 1. Power on the set and open the tray. Press “6” “6” “6” “6” and “Au

6、dio” button on the remote control. After that on the screen it shows: PLS INPUT MODEL CODE: 2. Then input the related MODEL CODE “0”. After that on the screen it shows: DVP REGION OK (It means the language has been corrected and the player will be power off automatically.) 4-1 Spindle motor does not

7、 move Yes Yes No No No No Yes Check whether “M5V” (+5V) voltage is normal. Correct connection Check the M5V power supply Check/Replace Q5,Q6,Q7,Q8. Check/ Replace U1. Check opu focus 1. Check U1 25pin FOCUS_PWM signals 2.If there are F+, F-, T+ and T- signals output from U2. Check/Replace the loader

8、 Yes Yes No Go Check whether laser voltage (1.9V for CD & 2.4V for DVD) on L9 and L10 Check the FFC connection between 24P and the loader. 1.Whether voltage on pin 23 of U1 varies between 0 and 3.3V (3.3V for CD and 0V for DVD), 2.Whether peripheral components are eroded or badly soldered. Trouble s

9、hooting chart Motor no move FOCUS_PWN waveform 4-2 The power can not be on or off Go Ye s Yes No No The power cant be on or off Yes Repair the power board Check the power supply on the power board is normal. Check/Correct connection Whether the connection to K301 is broken. Correct the connection Replace U1. No No Yes Yes Check if the XS301 on the front board to XP5 on the decoder board is in good contact. Whether there is 0V and 3.3V voltage difference on Pin 106 PCON of U1. Trouble shooting chart