1-11-17
E9656TS
D
FLOW CHART NO.13
Hi-Fi audio can not be playbacked normally. (Hi-Fi E-E mode is normal.)
Is the Playback Envelope signal outputted to
Pin(29) of IC451?
Is the Hi-Fi-H-SW signal inputted into to Pin(27) of IC451?
Ye s
Ye s
No
No
Check the Hi-Fi-H-SW line between
Pin(27) of IC451 and Pin(30) of
IC501, and service it if defective.
Replace
IC451.
Replace Cylinder Assembly.
FLOW CHART NO.12
Hi-Fi audio can not be recorded normally. (E-E mode is normal.)
Is the REC FM signal outputted to Pin(21) of IC451?
Is the line between Pin(8) of CN253 and
Pin(21) of IC451 normal?
Replace the Cylinder Assembly.
Ye s
Ye s
No
Replace IC451.
No
Service the line between Pin(8) of CN253 and
Pin(21) of IC451.
Is the sub carrier signal (3.58 MHz) inputted to
Pin(45) of IC451?
Is the audio signal outputted to Pin(53,57) of
IC451?
Is the audio signal inputted into Pin(3,13) of
IC1406?
Is the audio signal outputted to Pin(4,14) of
IC1406?
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
Ye s
No
No
No
No
No
No
No
Check the line between Pin(36) of IC451 and
Pin(31) of IC501, and service it if defective.
Check the line between the emitter of Q302 and
Pin(45) of IC451, and service it if defective.
Check the line between Pin(53,57) of IC451 and
Pin(3,13) of IC1406, and service it if defective.
Is approximately 5V voltage supplied to Pin(16)
of IC1406, or approximately -8V voltage supplied to
Pin(7) of IC1406?
Replace IC1406.
Replace IC501.
Check the AL+5V line and the AL-30V
line (R777,R778), and service it if defective.
Check the line between Pin(4,14) of IC1406 and
the audio output terminal (JK751), and service it if
defective.
Replace IC451.
Is the "L" pulse inputted into the Pin(36) of IC451?
Is the "H" pulse inputted into the Pin(9,10,11) of
IC1406?
To Next Page
Loading...
