1-11-18
E9656TS
FLOW CHART NO.14
Audio can not be recorded normally in the linear audio mode. (E-E mode is normal.)
Is the audio signal inputted into Pin(76,78,80) of IC301?
Does the Bias oscillation circuit operate normally?
Is the audio signal outputted to Pin(10) of IC301?
Replace IC301.
Is CN504 and the connected cable normal?
Ye s
Ye s
Is the audio signal outputted to Pin(9) of IC301?
Ye s
Ye s
Replace ACE head assembly.
Ye s
No
No
Check the line between Pin(61) of IC451 and
Pin(76,78,80) of IC301, and service it if defective.
Check the Bias oscillation circuit (
Q421,Q422,
Q425,Q426)
and service it if defective.
No
Replace IC301.
No
Replace CN504 and the connected cable.
No
FLOW CHART NO.15
Audio can not be playbacked normally in the linear audio mode. (E-E mode is normal.)
Are the CN504, the connected cable and the parts
on periphery of playback amplifier normal?
Is there no dirt on the surface of ACE head assembly?
Is the audio signal supplied to Pin(6) of IC301?
Replace
IC301.
Is the audio signal outputted to Pin(10) of IC301?
Check the line between Pin(10) of
IC301 and Pin(62) of IC451, and
service it if defective.
Service and replace poor parts.
Readjust the height of the ACE head assembly.
Clean the surface of ACE head assembly.
Ye s
Ye s
Is the height of ACE head appropriate?
Ye s
Replace the ACE head assembly.
Ye s
NoYe s
No
No
No
No
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