Sharp LC-52LE700E Service Manual

LC-32/40/46LE700E/RU/S,LU700E/S,LX700E/RU,LC-52LE700E/RU/S
6 – 2
<POWER BLOCK: 40/46/52 inch models>
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 <40 inch models>
Are L7001, L7002, L7003, D7101, D7103, VA7002, VA7001,
VA7003 etc... faulty?
Check if the peripheral circuits are short-circuited.
YES
<46 inch models>
Are L7001, L7002, L7003, L7004, D7101, VA7002, VA7001,
VA7003 etc... faulty?
Check if the peripheral circuits are short-circuited.
Is F7102 normal? NO Are TH7102, C7130, etc... faulty?
YES
Is BU+5V supplied from pin(11) of connector CN7501 when the
power switch is turned off?
NO Check the peripheral circuits (IC7102, T7101, C7510, PC7102,
PC7101, etc ⋅ ⋅ ⋅)
YES
Is the PS_ON signal sent to pin(10) of connector CN7501 when
the power switch is turned on?
NO Check pin(59) of IC2002(UCON) on MAIN PWB.
YES
Is the AC_DET signal sent to pin(9) of connector CN7501 when
the power switch is turned on?
NO Check the peripheral circuits such as PS_ON circuits of Q7503,
PC7103, Q7118, Q7114 and PC7104,Q7501,Q7502.
YES
Is a DC voltage of approx. 400V applied to both ends of C7144? NO <40 inch models>
Does the PFC circuit normally work?
(Check IC7104, L7105, TH7101, RL7101, IC7200, Q7109,
Q7110 etc... and the peripheral circuits.)
YES
<46/52 inch models>
Does the PFC circuit normally work?
(Check IC7104, L7105, TH7101, RL7101, IC7101, Q7108,
Q7109 etc... and the peripheral circuits.)
Is UR13V supplied from pins(1-4) of connector CN7501 when the
power switch is turned on?
NO Check the peripheral circuits (T7102, D7507, C7514,7515,7516,
PC7105, PC7106, IC7503etc...)
YES
Is PNL12V supplied from pins(1-2) of connector CN7503 when
the power switch is turned on?
NO Check the peripheral circuits (IC7502, etc ⋅ ⋅ ⋅)
YES
<40 inch models>
Is VLED supplied to pins(1-5) of CN7606 and pins(1-5) of
CN7607 when the power switch is turned on?
NO <40 inch models>
Check the peripheral circuits, T7102, D7516, D7517, C7528,
L7501etc ⋅ ⋅ ⋅.
<46/52 inch models>
Is VLED supplied to pins(1-5) of CN7606, pins(1-5) of
CN7607,pins(1-3) of CN7608 when the power switch is turned
on?
NO <46/52 inch models>
Check the peripheral circuits, T7102, D7516, D7517, D7518,
C7528, C7538, L7501etc ⋅ ⋅ ⋅.

Sharp LC-52LE700E Specifications

General

Display diagonal	52 \
Display brightness	450 cd/m²
Display technology	LCD
Native aspect ratio	16:9
Viewable size diagonal	1320 mm
Contrast ratio (dynamic)	3000000:1
Contrast ratio (typical)	4000:1
Viewing angle, horizontal	176 °
Power requirements	AC 220-240 V / 50 Hz
RS-232 ports	1
HDMI ports quantity	4
SCART ports quantity	2
Component video (YPbPr/YCbCr) in	3
Product color	Black
Tuner type	Analog & digital
Analog signal format system	NTSC

Weight and Dimensions

Depth (without stand)	95 mm
Width (without stand)	1238 mm
Height (without stand)	765 mm
Weight (without stand)	27600 g