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I was very glad recieving the service manal from You. Manuals were delivered promptly and were correct as advertised. A complete and very usefull service manual with all details. Thank you!
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Very clear copy. No pages missing. Big bonus is that it includes supplement. Price is affordable compared to what others ask for.
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Found the quality of the copy excellent and a very quick service. I would certainly recommend the service.
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Good quality, clear diagrams. Exactly what I needed.
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Good product. All the information is invcluded, but due to the complexity of the amplifier, it still is difficult to get it to operation again.
TROUBLESHOOTING HINTS
1. The bell does not ring.
When the PAGE SW of the base is pressed, does the ringer on the handset ring? OK NG See 2. The bell does not ring & page does not ring.
When the TEL SG is joined with the base to make bell signal, is there pulse wave at pin 4 of IC4? OK
NG
Check IC4 and TEL network circuit.
Is there pulse wave at pin 21 of IC5? OK
NG
Check R58, C45 and R59.
Check IC5 and its peripheral circuit.
BASE UNIT
If you want to reset the unit to the factory settings 1) Set the T/P switch to TONE position. 2) Diconnect the AC adaptor and telephone line code from the base. 3) While pressing the �PAGE� key, plug the AC adaptor. Keep pressing the �PAGE� key for about 3 seconds. 4) Keep pressing the �PAGE� key, then the IN USE LED will light and the base unit will be reset.
HANDSET
Delection of the Caller ID memory To delete the Caller ID memory in the EEPROM, proceed with the folloing process: 1) Diconnect the battery from the connector. 2) Connect the battery with pressing and # buttons, and keep pressing the buttons continuously for about 3 seconds. 3) Keep pressing the buttones, and a beep tone will sound and TALK LED will light. 4) Press the �MEM� key, then the handset unit will be reset.
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