Read Sharp DV-SL10H (serv.man9) Service Manual online
1-8-3
E5752TS
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
FLOW CHART NO.13
The fluorescent display tube does not light up.
Is the voltage of 3.3V supplied to Pin(6) and
Pin(24) of IC2001?
Pin(24) of IC2001?
Is the voltage of -24V supplied to Pin(15) of
IC2001?
IC2001?
Is there 500kHz oscillation at Pin(26) of IC2001?
Check the signal lines of FP-DIN, FP-DOUT,
FP-CLK, FIP-STB of IC2001 and CN1001?
FP-CLK, FIP-STB of IC2001 and CN1001?
Are the filament voltage supplied between
Pins(1, 2) and Pins(34, 35) of the fluorescent
display tube? And the negative voltage applied
between these pins and GND?
Pins(1, 2) and Pins(34, 35) of the fluorescent
display tube? And the negative voltage applied
between these pins and GND?
Replace the fluorescent display tube.
Yes
Replace IC2002.
Check the EV+3.3V line, and service it if defective.
Check the -FL (-24V) line, and service it if defective.
Check PWRCON line,
and service it if defective.
and service it if defective.
Check R2015, IC2001 and their periphery, and
service it if defective.
service it if defective.
Is the "H" signal inputted
at base of Q1016?
at base of Q1016?
Check or replace IC2001 and its periphery, and
DVD Main CBA unit, and service it if defective.
DVD Main CBA unit, and service it if defective.
Check or replace the power circuit, D1016, D1017,
T1001, and their periphery, and service it if defective.
T1001, and their periphery, and service it if defective.
Is the voltage of -17V supplied to the collector of
Q1005?
Q1005?
FLOW CHART NO.14
The key operation is disabled.
Is key switch contact (SW2001-SW2003, 2005,
2006, 2008) and installation state normal?
2006, 2008) and installation state normal?
Is the control voltage normally inputted into
Pins(7, 8) of IC2002?
Pins(7, 8) of IC2002?
Check the key switches (SW2001-SW2003, 2005,
2006, 2008), and their periphery circuit, and
service it if defective.
2006, 2008), and their periphery circuit, and
service it if defective.
No
Service or replace some poor switches.
No
Yes
Yes
No
Check or replace Q1015, Q1016, D1055, and
their periphery, and service it if defective.
their periphery, and service it if defective.
0.49
(V)
1.49
2.42
3.20
4.10
PLAY
POWER
-----
-----
OPEN/CLOSE
-----
PAUSE
STOP
SKIP-UP
SKIP-DOWN
Terminal voltage of IC2002-7,8
KEY-1
IC2002-7
KEY-2
IC2002-8
FLOW CHART NO.12
EV+1.5V is not outputted.
Is 2.5V voltage supplied to Pin(1) of IC1002?
Is 1.25V voltage supplied to Pin(4) of IC1002?
Replace IC1002.
Replace IC2002.
Check the circuit between Pin(19)
of IC2002 and Pin(4) of IC1002,
and service it if defective.
of IC2002 and Pin(4) of IC1002,
and service it if defective.
Check D1006, C1014 and the periphery circuit.
Is the "L" pulse outputted to Pin(19) of IC2002?
Yes
Yes
Yes
No
No
No
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