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There are currently no product reviews.
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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
2. raster, but no picture
Check if the unit can operation?
yes
Check if the all channels have signal?
no
no no
Enter
factory-menu, CLEAR then turn
Replacing CPU board
operation EEPROM,
Which is no VGA/DVI signal of channels YPRPB TV Testing power supply (+5V-V) of video processing board no
Replacing CPU board
off , turn on again , it if display picture. yes Adjust CPU board again
Check input 24V of sound conversion board no Check input 24V-A of CPU board
Replacing U30
no
Testing PIN65 of U30 SYNC signal
yes
Display �NO-SIGNAL� no
yes
no Check output 24V-A of power supply board
Replacing U13
no
Testing 1VPP signal of TP1, TP2, TP3.
yes Replacing CPU board
Check if PIN2 1VPP signal and noise wave of P32? yes Check if PIN56 15.734KHz sync signal of U29? no Replacing U29
no
Replacing TUNER202
yes
2
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