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I found this service manual to be complete in every detail except for troubleshooting charts. It would be helpful if it had a set of troubleshooting charts; however it is a very good manual otherwise and for the price it is very well worth it.
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Complete manual included schematics layouts and alignment procedure, clear to read and magnify, extremely pleased with manual and owner manual . com's service
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perfect, i am very satisfait for the réception of the sansui r-5l service manual, thank you very much
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Thank you, this is a rare document. Few others have it, but they charge way more for a download.
Great deal (even if you have to wait a few hours to get it).
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The purchased manual is an high quality scan of the original Philips paper-based Service Manual. I am very satisfied!
XL-HP434H
(1) Focus-HF system check. Although a CD is inserted and the cover is closed, "NO DISC" is displayed.
Press the Tray1 CD Eject Button without inserting a disc, and try starting the playback operation.
T
Stopped CH1=500 mV DC 10:1
CH3=500 mV DC 10:1
500 ms/div (500 ms/div) NORM:20 kS/s
FDO
1
TDO
3
CH1 v/DIV 500 mV =Filter= Smoothing : ON BW : FULL =Offset= CH1 : 0.000 V CH2 : 0.0 V CH3 : 0.000 V CH4 : 0.00 V =Record Length= Main : 100 K Zoom : 2K =Trigger= Mode : AUTO Type : EDGE CH1 Delay : 0.0 ns Hold off : 0.2 µs
Figure 1 1. Does the pickup move to the PICKUP-IN Switch (SW1A) position? No Sled motor (M2A).
Yes 2. Does the focus (lens) move up and down? (Waveform drawing Figure 1)
No
Check the focus peripheral circuit.
Yes 3. Is the laser lit? No Check the laser diode driver Q1 peripheral circuit.
Yes 4. Is the turntable rotating? No Spindle motor (M1A).
When a disc is loaded, start playback operation.
1. Is focus servo activated? (Waveform drawing Figure 2)
No
Pins 7~11, 13,19 and 20 on IC1 Check the laser diode driver Q1 peripheral circuit.
Yes 2. Does DRF change from "L" to "H"?
No
Is the disc rotating?
No
Check the spin system. If the disc is spinning and a HF waveform is generated, DRF will go H.
Yes 3. Is the HF waveform normal? (Waveform drawing Figure 3) No If the level is not normal.
Stopped CH1=500 mV DC 10:1
CH2=10 V DC 10:1
CH3=1 V DC 10:1
500 ms/div (500 ms/div) NORM:20 kS/s
FDO
1
T 2
DRF
TE
3
CH Position To -3 div -1 div 0 div +1 div +3 div =Filter= =Offset= =Record Length= Smoothing : ON CH1 : 0.000 V Main : 100 K BW : FULL CH2 : 0.0 V Zoom : 2K CH3 : 0.00 V CH4 : 0.00 V
CH2 Position 0.20 div =Trigger= Mode : AUTO Type : EDGE CH1 Delay : 0.0 ns Hold off : 0.2 µs
Vp-p=1.0 V~1.3 V 0.5 mV/div,0.5 µsec/div
Figure 2
Figure 3
7�2
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