Philips-DVP-3142-Service-Manual电路原理图.pdf

上传人:cc518 文档编号:83342 上传时间:2020-10-06 格式:PDF 页数:55 大小:2.25MB
下载 相关 举报
Philips-DVP-3142-Service-Manual电路原理图.pdf_第1页
第1页 / 共55页
Philips-DVP-3142-Service-Manual电路原理图.pdf_第2页
第2页 / 共55页
Philips-DVP-3142-Service-Manual电路原理图.pdf_第3页
第3页 / 共55页
亲,该文档总共55页,到这儿已超出免费预览范围,如果喜欢就下载吧!
资源描述

《Philips-DVP-3142-Service-Manual电路原理图.pdf》由会员分享,可在线阅读,更多相关《Philips-DVP-3142-Service-Manual电路原理图.pdf(55页珍藏版)》请在收音机爱好者资料库上搜索。

1、. Technical Specifications.1-2 . Safety Instruction, Warning 50/60HZ Power consumption button to confirm, then screen will display : Firmware Upgrade Programming, Please Wait. Do not Switch the Player Off ! 4) The upgraded disc will automatically out when files coping complete, then take out the dis

2、c. 5) About 1 minute later, the trace will automatically close when upgrading complete. B. Read out the software versions to confirm upgrading 1) Power up the set and open the tray door. 2) Press button to check the software information. The software version and other information are display on the

3、TV screen as follows: BE Version: DVP3XXXXX_XX.XX FE Version: DCX.XXXXXX.XX.XX DSP Version: DSP.XX Region Code: X 3-1 Caution: The set must not be power off during upgrading, Otherwise the Main board will be damaged entirely. 4-1 Spindle motor does not move Yes Yes No No No No Yes Check whether “RFA

4、5V” (+5V) voltage is normal. Correct connection Check the RFA5V power supply Check/Replace Q2 Q3. Check/ Replace U1. Have no focus 1. Check U1 182pin FOCUS_PWM signals 2.If there are F+, F-, T+ and T- signals output from U7. Check/Replace the loader Yes Yes No Go Check whether laser voltage (2.3V fo

5、r DVD & 1.9V for CD) on Collector of Q2 and Q3 Check the FFC connection between 24P and the loader. 1.Whether voltage on pin 129 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 shooting chart Motor no move FOCUS_PWN

6、waveform Remark: Trouble shooting chart for DVP3140/XX4-2 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 connec

7、tion Replace U1. No No Yes Yes Check if the CON301 on the front board to CN5 on the decoder board is in good contact. Whether there is 0V and 3.3V voltage difference on Pin 94 PCON of U1. Trouble shooting chart Remark: Trouble shooting chart for DVP3140/XX4-3 All output voltages on the power board i

8、s 0V or deviated.No No No Yes No U1(PIN 8 - Drain waveform) Replace F1 Replace C1&C2 if D1, D2, D3, D4 are normal. Check/ replace U1. Check whether U1 are eroded. All output voltages on the power board is 0V or deviated Check whether there is 300V on C1 and C2. Check whether 100KHz oscillating signal on Pin6 of U1 Check if +5V, , +12V and -12V are short. Check whether the components in the short-circuit voltage are defected or eroded. Yes Yes Yes Yes U1(PIN 3 - RC waveform) Check whether F1 is blown Trouble shooting chart Remark: Trouble shooting chart for DVP3140/XX

展开阅读全文
相关资源
猜你喜欢
相关搜索

当前位置:首页 > 功放/音响/收扩 > Philips

copyright@ 2008-2025 收音机爱好者资料库 版权所有
备案编号:鄂ICP备16009402-5号