To Next PageTo Next PageWhat to do if an opening screen is not displayed on Pioneer Receiver, but the FL display lights and the mechanism works?
If the opening screen isn't showing on your Pioneer Receiver, yet the FL display lights up and the mechanism is functional, examine the video signal path between the DVD IC (DVDMAIN Assy IC201) and the video-out terminal, referring to the block diagram. Also, check the DVD IC (IC201).
Why is there no sound on my Pioneer Receiver, but the picture is normal?
If your Pioneer Receiver has no sound but the picture is normal, verify the waveforms at the following points: ALCK (IC201-pin 212), ALRCK (IC201-pin 209), ABCK (IC201-pin 210), and ASDATA0 (IC201-pin 197).
How to troubleshoot a Pioneer Receiver that the power is not turned on?
If your Pioneer Receiver is not turning on, verify the wires of the output connector (POWER SUPPLY Unit) and CN1001 (DVDMAIN Assy) are neither disconnected nor damaged. Also, check that the voltage output at Q1202-source on the DVDMAIN Assy is 3.3V.
What to do if the opening screen is not displayed on the Pioneer Receiver monitor, but the FL display lights and the mechanism works?
If the opening screen is not displayed on the monitor of your Pioneer Receiver, yet the FL display lights and the mechanism works, check the video signal path between the DVD IC (DVDMAIN Assy IC201) and the video-out terminal, referring to the block diagram.
What to do if there is picture disturbance during playback (block noise, freeze, other) on Pioneer Receiver?
To troubleshoot picture disturbances during playback on your Pioneer Receiver, check the disc for scratches or dirt and ensure the disc format is correct. Additionally, inspect the composite video signal at IC401-pin 25, the S video signal at IC401-pin 21 and pin 26, and the RGB video signal at IC401-pin 16, pin 18, and pin 20.
What to do if playback stops on Pioneer Receiver?
If your Pioneer Receiver's playback stops unexpectedly, the 650-nm LD may be deteriorating. If the voltage at each end of R322 and R325 on the DVD MAIN Assy is 0.4 V or more, the 650-nm LD is likely deteriorated. Also, the 780-nm LD may be deteriorating. If the voltage at each end of R321 and R326 on the DVD MAIN Assy is 0.4 V or more, the 780-nm LD is likely deteriorated. Check for abnormalities in the FG waveform at IC201-pin 50. Finally, ensure that the disc is free of scratches or dirt.
What to do if Pioneer Receiver playback is impossible because the spindle does not turn?
If playback is impossible on your Pioneer Receiver due to the spindle not turning, check the signals output from IC101-pin 30 (W), pin 33 (V), and pin 35 (U) on the DVDMAIN Assy. Also, verify if pin 26 (STBY) is fixed LOW; it should be High (3V) during playback. Inspect the spindle motor for detached parts or foreign objects. Ensure that the wires of CN102 on the DVDMAIN Assy are not disconnected or damaged. Finally, check if a signal is output from IC201-pin 37 (DMSO) on the DVDMAIN Assy.
Why is playback impossible on my Pioneer Receiver (no focusing)?
If playback is impossible on your Pioneer Receiver due to no focusing, check the signals output from IC101-pin 3 (FOCS_DRV) and pin 4 (FOCS_RTN) on the DVDMAIN Assy. Verify if the 650-nm LD emits light, if the pickup lens moves up/down, and if the actuator spring bends. Inspect plastic parts for damage, ensure the shaft is not detached, and check if the turntable is detached or tilted. Confirm that the flexible cable of CN101 on the DVDMAIN Assy is neither disconnected nor damaged. Also, check for a signal output from IC201-pin 42 (FOSO) on the DVDMAIN Assy; a device control signal of about 1.4 V is typically output, fluctuating by about ± 250 mV with focus up/down.
General| Type | Home Theater System |
|---|---|
| Audio Channels | 5.1 |
| DVD Playback | Yes |
| CD Playback | Yes |
| FM Tuner | Yes |
| Number of Preset Channels | 30 |
| USB Port | Yes |
| Remote Control | Yes |
| Outputs | Composite video output |
| Supported formats | DVD, CD, MP3, JPEG |
| Speaker Configuration | 5.1 |
