Sharp VC-M29GM Serviceanleitung Seite 21

FLOWCHARTNO.18E-E MODETROUBLESHOOTING (without DECODER)
Is there a signal at pin (61) of
10201?
NO
YES
Check between pin (61) of
IC201 and the way up thru
to pin (20) of SC2501?
Is there a signal at pin (57) of 10201?
NO
YES
is the supply voltage of 5V fed to
pins (14) and (54) of IC201?
YES
Are there the serial data and clock
at pins (17) and (18) of IC201?
Is there signal at pin (71) of 10201?
Checkbetweenpin (57) of 10201andall
the way upthruto pin (19) of SC2501.
No E-E signal.
Is there a signal at pin (60) of
IC201?
YES
Check between tuner and
all the way up thru to pin
(60) of IC201
NO
Check
Check between pins (17) and (18)
NO
of 10201 and all the way up thru to
pins (49) and (50) of 10701
NO
Replace IC201.
(Tuner)
NO
PC 5V lines.
FLOWCHARTNO.19RECORDIN
Recording is not po
Is there a signal at pin (77) of
IC201 ?
YES
Is there a signal at pin (6) of
IC201 ?
YES
Is there a signal at collector of
Q331 ?
YES
Is there a signal at pin (26) of
IC301 ?
YES
Are pins(36) and (35) of IC301at
about 4V respectively?
YES
Is there a signal at pin (10)
of 10301? 2 head models>>
FLOWCHARTNO.20RECOR
Recording i s possible bu
Is there signal at pin (13) of 10201?
YES
is there a signal at pin (15) of
IC201?
YES
Is there a chroma ingredient
included signal at collector of