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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
LZ-601
ADJUSTMENT
No. ITEM INPUT SETTINGS OUTPUT SETTINGS ALIGNMENT POINTS ALIGN FOR 1. After turning the unit on, warm it up for 15 minutes before proceeding to the adjustment. 2. Adjust S207 so that the voltage at IC201 pin 32 is 2.30V±0.1V DC. 3. 1) Turn the knob (BRIGHT) to the center position. (It is put to the center position at the moment the unit is turned Puts a video 4 BRIGHT signal for the inspection in VIDEO IN on.) Connect a DC voltmeter to IC201 (32P) S207 2) Adjust S207 so that the second grid from the right of the gray scale dims by about 20%. 3) Turn the knob (BRIGHT) to the MAX position and confirm that the three grids from the left of the gray scale are distinguishable.
Distinguish Distinguish Not distinguish
STANDARD
IC201 32pin (Bright) DC : 2.30V±0.1V 2) BRIGHT : CENTER
5 4 3 2 1
3) BRIGHT : MAX
5 4 3 2 1
4) BRIGHT : MIN
5 4 3 2 1
4) Turn the knob (BRIGHT) to the MIN position and confirm that the three grids on the right of the gray scale are distinguishable. 1. After turning the unit on, warm it up for 15 minutes before proceeding to the adjustment. Puts a video 5 WHITE BALANCE signal for the inspection in VIDEO IN 2. Turn the knob (BRIGHT) to the Connect a DC voltmeter to IC201(27P or 28P) S204 S205 center position. (It is put to the center position at the moment the unit is turned on.) 3. R adjustment: Adjust S204 so that the background is reddish. 4. B adjustment: Adjust S205 so that the picture is gray.
Not distinguish
IC201 27pin SVR204 DC : 1.75V±0.1V IC201 28pin SVR205 DC : 1.80V±0.1V
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