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A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
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Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
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Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
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Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
best regards
Ed(Tony) Foley
G7WHK
�. Re-Adjustment
A���� changing the Signal Board or Panel Module, re-adjustment is needed according to the item 7.1 to 7.5 . For Video Board, item 7.3 to 7.5 are needed. 7.1 Personal Computer (PC) input black level/fundamental amplitude adjustment How to prepare 1.Connect RGB input terminal VGA (75), 0.7Vpeak, no-set up, horizontal 16 stairs bar signal. Initial adjustment data must be 8 bit resolution. 2.Appear and adjust screen OSD Menu of Picture: Contrast:: Max, Brightness: 0, and options are Color select: NORM, GAMMA: 1.0, Video level: 0.7V Set adjustment No. 246, 247 and 248 scale to 16 . Adjustment No240 is GAMMA function.( 0=GAMMA1.0, 1=GAMMA2.2) How to adjust 1.Set factory preset mode and adjust as follows by Remote Control Transmitter. 2.Set adjustment No.41 to just darken black level.(GAMMA1.0) 3.Set adjustment No.42 to just darken black level.(GAMMA1.0) 4.Set adjustment No.43 to just darken black level.(GAMMA1.0) 5.Connect Full black signal and check that no residual color area is observed. If residual color area is observed, re-adjust No.41, 42 and 43 to disappear it. 6.At adjustment No.44, adjust that 2nd step of White peak is just distinguished.(GAMMA=2.2) 7.At adjustment No.45, adjust that 2nd step of White peak is just distinguished.(GAMMA2.2) 8.At adjustment No.46, adjust that 2nd step of White peak is just distinguished.(GAMMA2.2) 9.Change to No47. 10. Check that setup level is darken and also 2nd step of white level is distinguished. 11.Check that 2nd step of white peak is distinguishable. Tolerance of each color adjustment numbers are less than 7. If more than 7. re-adjust from above 2. step. 7.2 PC color temperature adjustment How to prepare 1. Set factory preset mode. 2. Connect window pattern signal (25% of display area) VGA (75), 0.7Vp-p without set up signal . 3. Window pattern (R, G and B) should be 8 bit resolution each. 4. Appear and adjust Screen OSD menu of Picture. Contrast: Max, Brightness: 0, and options are Color select: NORM, GAMMA: 2.2, Video level: 0.7V Set adjustment No. 246, 247 and 248 scale to 16 . Video input level should be 0.7Vp-p. How to adjust 1.Set factory preset mode and adjust as follows by Remote Control Transmitter. 2.Measurement probe of CRT Color Analyzer CA-100 is set on the center of screen. (Center of white peak signal.) 3.Adjust color temperature as follows by reducing one or two numbers of No.32, 33, 34.
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