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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
AVX-P7000CD,AVX-7000
3No power
No power NO F801 (fuse) is broken out? YES 18.5V is obtained at TP02? If not, the resistance between TP02 and GND is 100k ohms or more? NO Check 18.5V line to remove short-circuits. (CN003 and its periphery) NO
Replace F801.
7V is obtained at TP03? if not, the resistance between TP03 and GND is 500 ohms or more?
Check 7V line to remove short-circuits. (Q201, Q202, Q203, and their periphery)
5V is obtained at TP04? If not, the resistance between TP04 and GND is 35 ohms or more?
Check 5V line to remove short-circuits. (Q201, Q208, Q651, and their periphery)
(-15.5)V is obtained at TP05? If not, the resistance between TP05 and GND is 950 ohms or more?
Check (-15.5)V line to remove short-circuits. (Q881, CN003, and their periphery)
(-5)V is obtained at TP06? If not, the resistance between TP06 and GND is 400 ohms or more?
Check (-5)V line to remove short-circuits. (Q201, Q202, Q203, and their periphery)
Input voltage 9V is obtained at Pin-5 of Q801 (FA7610N)?
Check F801, input flexible cables, and their periphery.
Triangular waves are obtained at Pin-6 of Q801 (FA7610N)?
Check Q801 and its periphery.
Switching waves are obtained at Q804 (TR)?
Check Q801 and its periphery.
Check Transformer (T801) and replace it.
4Out of Sync
Out of Sync YES Video signal is obtained at Q653 (TR)? NO
Check input flexible cables, Q651, and their periphery.
Video signal is obtained at Pin-60 of Q201 (NJW1300A)?
Check R229 (LPF, 360 ohms) and its periphery.
Full-wave oscillating waveform is obtained at Pin-55 and Pin-56 of Q201 (NJW1300A)?
Check X202 (Ceramic resonator) and its periphery.
5V is obtained at Pin-61 of Q201 (NJW1300A)?
Go to item3 No power.
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