This is a good quality scan of the service manual which includes an assembly diagram, block diagram, schematic, and parts list. Exactly what is needed to repair my KR-V55R receiver.
Excellent concise manual. All needed information was included. Typeface and diagrams were clear. Very fair price considering what others are charging. Many thanks
Response is a little slow- I had to wait 12 hours to receive download link but it says that it may take up to 24hrs.
Manual is old and was not produced in PDF- scanned copy is exellent.
Overall- value for money- I recommend
Text excerpt from page 56 (click to view)
GX15
3. No voice is heard from the earpiece.
Phone (Handset) Do keypad tones and melodies sound?
YES
CONFIDENTIAL
NO
Go to the section �Earpiece (for loud speaker) does not work�. (see page 2-50)
Is 0.5 V or more applied to R101 (IC103 pin 9 side)?
NO
YES
IC103 is defective.
Is 0.5 V or more applied to JK101 pin 5?
NO
YES
Parts between socket JK101 pin 5 and IC103 pin 9 are defective.
Is 0.5 V or more applied to JK101 pin 3?
NO
YES
Socket JK101 is defective.
Is 0.5 V or more applied to TP120?
NO
YES
Parts between socket JK101 pin 3 and TP120 are defective.
Is 2.4 - 2.6 V applied to TP176?
NO
YES
R122 is defective.
Is 2.4 - 2.6 V applied to R115 (IC103 pin 76 side)?
NO
YES
R115 is defective. (Hands free kit mode is set.)
IC103 is defective. Hands free kit (Headset) Replace the hands free kit. Is sound produced?
NO
YES
The hands free kit is defective.
Is signal sent to JK101 pin 4?
NO
YES
Socket JK101 is defective, or the hands free kit is in a poor contact with the socket plug.
Is signal sent to TP121?
NO
YES
Parts between socket JK101 pin 4 and TP121 are defective.
Is signal sent to R124 (IC103 pin 60 side)?
NO
YES
Parts between IC103 pin 60 and TP120 are defective.
Disconnect the hands free kit. Is voice heard in phone mode?
YES
