Sharp LC-32LE600E Service Manual

LC-32/40/46LE600E/RU/S (1st Edition)
5 – 1
LC32LE600E
ServiceManual

CHAPTER 5. TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE
<POWER BLOCK: LC-32LE600E/RU/S>
No power supply (Front LED does not light up) and no power-up even if turned on (Front LED light up).
Is the wire harness in the unit properly connected? NO Reconnect and recheck the wire harness.
YES
Are F7001 and F7002 normal? NO Are L7004, L7001,L7002,BD7001 etc. faulty?
Check if the peripheral circuits are short-circuited.
YES
Is BU+5V supplied from pin(11) of connector CN7003 (PD) when
the power switch is turned off?
NO Check the peripheral circuits,
IC7101, T101, C7401, C7403, PC7008, etc ⋅ ⋅ ⋅.
YES
Is the PS_ON signal sent to pin(10) of connector CN7003 (PD)
when the power switch is turned on
NO Check pin(AC11) of IC3303(VCT_P) on MAIN PWB.
YES
Is the AC_DET signal sent to pin(9) of connector CN7003 (PD)
when the power switch is turned on?
NO Check the peripheral circuits,PC7007, Q7004, PC7002,etc.
YES
Is the DC voltage of approx. 400V supplied to both ends of
C7015?
NO Does the PFC circuit normally work?
(Check IC7002, L7003, TH7001, IC7001, Q7005, Q7006etc. and
the peripheral circuits.)
YES
Is UR13V supplied from pins(1-4) of connector CN7003 (PD)
when the power switch is turned on?
NO Check the peripheral circuits
(T7002, D7051, L7051, PC7001)
YES
Is PNL12V supplied from pins(1-2) of connector CN7004 (PL)
when the power switch is turned on?
NO Check the peripheral circuits (U7053, etc ⋅ ⋅ ⋅)
YES
Is 144V supplied from pins(2,4,6) of CN7007(LA2) and
pins(2,4,6,8,10,12) of CN7006 (LA1) when the power switch is
turned on?
NO Check the peripheral circuits,
T7501, D7501, C7501, FA5511,etc ⋅ ⋅ ⋅.

Sharp LC-32LE600E Specifications

General

Brand	Sharp
Model	LC-32LE600E
Category	TV
Language	English