Sharp VC-M29GM Serviceanleitung Seite 23

FLOWCHART NO.23LINEARSOUND RECORDING M ODE TROUBLESHOOTING
Is there a signal at pin (42) or (43)
of IC201?
YES
Is there•a signal at pin (34) of
IC201?
YES
Is the supply voltage of 8V fed to
pin (2) of T651 ?
YES
Is there a signal (Bias) at pin (5) of
T651?
YES
Is there a signal (Bias+Audio sig.)
at pin (6) of T651?
YES
Is there a signal (Bias+Audio sig.)
at pin (4) of AA connector?
No record.
Check line between pin (42) of
NO
IC201 and pin (7) of UNIT1501.
Check line between pin (43) of
IC201 and pins (2) and (6) of
SC2501. <<Normal audio without
Decoder
NO
Replace IC201.
Check BIAS SV line.
NO
Check T651 , 0602 and their
NO
peripheral parts.
NO
Check C620 and R623.
Check MH-AA harness and A/C
NO
head.
FLOWCHARTNO.24LINEARSOUN
Is there a signal at pin (40) NO
of 10201 ?
YES
Replace defective
Readjust azimuth
Is there "L" level at NO
pin (52) of 10201?
YES
Is there a signal at pin (46)
NO
of ?
YES
Is there a signal at emitter
NO
of Q601 ?
YES
Checkfinebetweenemi
FLOWCHARTNO.25F
Is there a FMaudio signalat pin (9)
YES
Check b etween pins (9)ofUNTI 501 and
of 10201.
No
No
NO