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Was very fast and accurate service. Just what I needed. I recommend to everyone.
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Very good scan quality, only PC Board scan not enough contrast.
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First of all I must say that I received the manual in just a few minutes after placing the order. The copy is well done and very readable. I will buy others soon... Thanks, Meyer
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Good service manual. I gat all I want. Copy is good, but could be better. All clear and useful. I sincerely recommend.
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The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.The schematic is very helpful and the images are very good.
5 Troubleshooting
5-1-13 High Voltage Failure WAVEFORMS
3
IC401 Pin 6 OSC pulse exists?
No
Check and replace IC401 and +12 V line.
3 2.00 V (IC401, #6)
Yes No
10
Q402 Gate driving pulse exists?
Check and replace Q401 and Q423.
Yes
11
CH1 P-P = 2.00 V CH1 RMS = 5.868 V
Q402 Drain pulse exists?
No
Check and replace D401, Q403 and L402.
10 2.00 V (Q402, Gate)
Yes Done
CH1 P-P = 2.00 V CH1 RMS = 7.692V
5-1-14 ABL Failure
11 50.0 V (Q402, Drain)
Input full white pattern to monitor.
IC101 Pin 8 input exists and varies with different patterns? Yes Check CN102.
No
Check and replace IC101.
CH1 P-P = 50.0 V CH1 RMS = 73.7V
T501 Pin 8 output exists?
No
Check and replace T501.
Yes IC201 Pin 26 output exists and varies with different patterns? Yes Done No Check and replace IC201.
AQ17KS
5-7
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