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Very good quality download here. Great hard to find manuals at a reasonable price.
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I had a problem with the mains transformer, I did not know the voltages on the secondary, this manual helped me to solve this problem, thanks for the manual!
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Great manual, great quality copy, complete parts reference and scematics, Thank you
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Very good as always. Also this manual appears clear and well processed. I know it will help me to work on this TV. Thank you a lot! Matteo
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complete wiring diagram, without the part list. high quality copy. thanks for promptly.
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7.1.10 DIAGNOSIS OF THE MAIN ASSY
Power ON
A
Does a desired screen appear when selected a tuner? Yes
No
1 Failure in the periphery of CN2301 (Poor contact with the TUJB Assy.) 2 Failure in the periphery of CN2401 (Power supply is not supplied from the POWER SUPPLY Unit.) 3 Failure in the periphery of IC4504, IC4507, IC4511 and IC4512 (Power supply is not supplied to each IC.) 1 Failure in the periphery of CN2301 (Poor contact with the TUJB Assy.) 2 Failure in the periphery of IC3101 (Failure in the periphery of AUDIO ADC for input audio.) 3 Failure in the periphery of IC3201 (Failure in the periphery of AUDIO DAC for output audio.)
No
Does a desired audio output it? Yes
B
No
No
Video recording and playback by HDD
Can the video recording and playback of HDD? Yes Video recording and playback by DVD
C
No
1 Failure in the periphery of CN3801 (Poor contact with the HDD.) 2 To the HDD check mode
No
Does the tray open?
No
1 Failure in the periphery of CN601 (Poor contact with the FRONT Assy.) 2 Failure in the periphery of IC501 (Failure in the periphery of the Driver IC.)
Yes Insert a disc and close the tray, then playback it
Do recognize a disc?
D
No
1 Failure in the periphery of CN101 (Poor contact with the Pickup Assy.) 2 Failure in the periphery of IC101 (Failure in the periphery of the RF IC.) No 3 Failure in the periphery of CN501 (Poor contact with the SPDL.) 4 Failure in the periphery of CN502 (Poor contact with the STEPPER.)
Yes 1 Failure in the periphery of CN2301 (Poor contact with the TUJB Assy.) 2 Failure in the periphery of IC3101 (Failure in the periphery of AUDIO ADC for input audio.) 3 Failure in the periphery of IC3201 (Failure in the periphery of AUDIO DAC for output audio.)
Do play back desired video and audio? Yes DVD recording
No
No
E
Can record desired video and audio?
No
1 Failure in the periphery of CN101 (Poor contact with the Pickup Assy.) 2 Failure in the periphery of IC101 (Failure in the periphery of the RF IC.) No
Yes End Failure in the periphery of IC101 (There is possibility of failure of the EMMA2RFE chip.)
F
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DVR-640H-AV
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