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Service manual very complete and clear. It was very helpfull for my work.
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This is the 2nd time I download manuals from this website and I can say it's what I was expecting. It contains schematic, layout (decent quality), short description, parts and dissasembly instructions. I recomend it for anyone who wants to repair/modify this device.
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Very useful Service Manual! With it I was able to identify the damaged pots in my old amplifier, purchase the adequate replacements and make myself the repair.
I have again my old amplifier, still a very good one that I will keep for as many years as I can!
Thanks to Owner Manuals!
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Good price for the manual and easy to locate on the site and download. Plus, just like the original. Thanks a lot.
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Genuine Service Manual. Link was available in less then an hour or so. Service Manual contains assembly, PCB layout, complete circuit diagram, Components list etc
2. The bell does not ring & page does not ring.
When the TALK key of handset is pressed. Does. The handset connected with Base.
NG
See part 3
OK When the PAGE key of BS is pressed . Dose the PIN11 of BU4 change from high to low. and PIN68 has not change.
NG
Check PAGE key and BR7.
OK Press PAGE key of HS. If there is a audio signal on PIN17 of BU6.
NG
Check the connected between BU4 and BU5.
OK Press PAGE key of BS. If there is a audio signal on PIN17 of HU6
NG
Check the connected between HU4 and HU5
OK Check the PIN of HD10 if there is a pulse signal. NG Check HQ4
OK The Buzzer is defective
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