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The service manual is as described and received the link to the download sooner than expected. Great service, quality product. This site is a big help in the electronics repair business.
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Il service manual molto accurato. Rapidi nella risposta
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Quick site processing. A complete and very useful manual with all details. Thank you!
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Quick service response. A useful and very rare service manual with all details. I recomend this service.
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I ordered this manual sometime in the afternoon and I received it on my e-mail the same evening.
This is a fantastically good and properly scanned copy of the original manual. All pages are of the same scale and they overlap each other. It means that you can print the manual and easily make it as a convenient paper manual.
The content of the manual is fantastic. Alignment descriptions, PCB layouts and elementary diagrams are explicit and precise. I immediately found what I was looking for. Thanks to this manual and Owner-Manuals.com my amplifier is alive again. Many thanx indded!
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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