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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
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Great and very well scanned Service Manual, also very fast download - Recomended !
PT-50LCZ70 / PT-56LCZ70 / PT-61LCZ70 / PT-50LCZ7 / PT-56LCZ7 / PT-61LCZ7
A
Plug in the AC Cord.
Check the voltage at the following points. Between Pin 1 and Pin 2 of CN851: approx. +120 V OK
NG
Check the parts (Ref No. 800 series) on the Power P.C.B. and replace any defective parts.
Unplug the AC Cord. Remove the jumper wire between TP810 and TP805 on the Power P.C.B. Reconnect all connector cables, then reinstall the Power P.C.B. into the unit.
Plug in the AC Cord and turn the power ON. NG OK There is no problem with the Power P.C.B.
Does the Lamp light up?
There is no problem with the Power P.C.B., however, the other P.C.B.s are defective. Check the Main P.C.B. and the Rear Jack P.C.B., and repair if necessary. Refer to "CHECKING THE OPT/TV UNIT."
Still NG Replace the Lamp Unit.
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