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I work at an authorized service center and I can tell if a manual is as it should be. This one is. It may be a scan, but a very good one at that. The interesting part for me was the curcuit diagram which was scanned at high quality, making it as good as the original. I will definitely be back as a customer. I need not say this, but I will: the price was the best. Thank you owner-manuals.com .
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really a very good manual even sometimes the quality is no so good as before still very readible and very very useful!
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FAST very good and clear a great unexpensive job!!! very recomended for all people who are preofessional or hobbists as me!!!!!!
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Thank you very much for this Service Manual, it helped us a lot to repair the M-4318!
...BUT: The parts list is missing and the free parts katalog on web isn't complete, so now we don't know the part numbers of the defect parts :(
We had to build them out of a working machine, and need the numbers to reorder the missing parts now.
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Very good manual with clear electrical diagrams. Thanks owner-manuals.
Alignment Instructions
2. SCREEN
SVC v0 R BIAS G BIAS B BIAS R DRIVE G DRIVE B DRIVE V. CENTER V. SIZE H. CENTER VCO VCO FIN VCO-L VCO-L FIN AGC LED EAST Pr 159 136 127 35 31 32 10 23 28 07 107 05 113 NO 44 01 1) Receive the Retma pattern and heat run over 15minutes. 2) Adjust the â G BIAS, R, G DRIVEâto 0, â BIASâto R, B 127, â DRIVEâto 32. B Adjust the screen volume that the Retma pattern reachs the cut-off point.
ENTER SERVICE MODE
1. Select the Pr 91. 2. Adjust âSparpness âto 0. 3. Enter the service mode using the follow keys. R G MENU.
3. WHITE BALANCE
1) Receive the Full white pattern and heat run over 15minutes. 2) Adjust the picture control at the point â value of white Xâ balance instrument in 20cd/m 3) Enter the service mode. 4) Adjust â BIAS, G BIASâto x=288, y=301. R 5) In order to exit the service mode power off the TV set and power on. 6) Set the TV set to â Normal Iâmode(20/21 inch) or set to â Normal IIâmode(14 inch) 7) Enter the service mode. 8) Adjust â DRIVE, G DRIVEâto x=288, y=301. R 9) Repeat above process until the white balance value to x=288, y=301, X=20, x=288, y=301, X=200 (approximate) in 2) -8).
1. AFT
1) Set a signal Generator with - RF FREQUENCY = 38.9MHz, 34.2MHz (Lâ ) - RF OUTPUT LEVEL = 80+/-5dBuV - System = PAL for 38.9MHz. SECAM-I for 43.2MHz. 2) Connect the Signal Generator RF Output (PAL 38.9MHz) to P101 (Tuner IF Output). There must be no signal input to the tuner. 3) Locate the cusor to â VCOâin Service Mode Menu, then press the â +âkey and wait until the Vol â Please waitâdisappear on the TV screen. 4) Connect the Signal Generator RF Output (SECAM-L 34.2MHz) to P101 (Tuner IF Output). 5) Locate the cusor to â VCO-Lâin Service Mode Menu, then press the â +âkey and wait until the Vol â Please waitâdisappear on the TV screen.
4. FOCUS
1) Apply a RETMA PATTERN signal. 2) Adjust the Focus Volume on FBT to obtain optimal resolution.
5. AGC
1) Set a pattern Generator with - RF LEVEL = 60dBuV - 100% FULL COLOR BAR 2) Connect the Pattern Genetator RF Output to tuner RF input. 3) Connect the probe of oscilloscope in AGC pin of tuner. 4) Adjust the AGC point to MAX - 1V. ( Simple Method ) 1) Receive the pattern. 2) Locate the cusor in â AGCâand adjust using the â VOL +âor â VOL -âkeys. 3) Adjust the point there is no noise in about 60dBuV and no beat in about 90dBuV.
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