Brand: PHILIPS
Category: Electronics
Document Type: Parts/Service
Language: EN
Brand: PHILIPS
Category: Electronics
Document Type: Parts/Service
Language: EN
Uploaded: Nov. 21, 2025, 7:12 p.m.
Manual Publish Date: 2011-01-01
This manual is for service and does not contain warranty information.
| Issue | Troubleshooting Steps |
|---|---|
| Spindle motor does not move | Check FFC connection between 24PIN and loader. Check "M5V" (+5V) voltage. Check current of R25/R26. Check peripheral components. Check/Replace U1. |
| The power can not be on or off | Check power supply on power board. Check XS2 to XP1 connection. Check connection to K303. Check OV and 3.3V voltage difference on U1 pin 10. |
| All output voltages on the power board is 0V or deviated | Check if F501 is blown. Check 300V on C501 or C502. Check 100KHz oscillating signal on U501 pin 4. Check if +5V is short. Check components for defects. |
| Disc cannot be read | Check FFC connection between 24P and loader. Check current of R25/R26. Check components between U1 and xp3. Check RFO signal on pin17 of XP3. Check connection between U1. Replace U1. |
| Only DVD disc, or only disc except DVD can be played | Check FFC connection between 24pin and loader. Check current of R25,R26. Check components between U1 and xp3. Check connection of xp5. Change U1. |
| No display on LED, and buttons do not work | Check correct contact between XS2 and XP1. Check VCC(M5V) voltage. Check STB, SDA, SCK signals. Check solder on U301/LED pins. Check circuit connected to K302,K303,K301. Check for open-circuit R303, R304, R305, R97, R98, R93. Replace U301 or LED. |
| Distorted audio and loud noise | Check power supply voltages +5V. Check muting resistance R133 and R132. Check U927 leads. Check voltage on pin7 of U927. Check U1 or U927 power supply. |
| Abnormal color of video picture | Check 27MHZ output signal. Check 3.3V and 1.2V power supply voltages. Check video filter network circuit. Check video signals on U1 pins 60/61/62/56. |
| Remote reception is insensitive or fails | Check remote control. Check power supply voltage to remote censor. Check output waveform from remote censor. Check IR signal on U1 pin 16. |
| No video picture, no sound | Check cable. Check voltages from power board to decoder board. Check reset circuit. Check 27MHz signal output. Check video output circuit. |