Chapter 7. Troubleshooting Table Troubleshooting Table - Sharp LC-60LE360X Service Manual

LC-60/70LE360X
CHAPTER 7.
TROUBLESHOOTING
TABLE
[1] TROUBLESHOOTING TABLE
[1] TROUBLESHOOTING TABLE
No power (front LED failure to light up) or no startup (front LED failure to turn from red to green)
Are the wire harnesses and other cables properly connected in
the set?
Is there the PS_ON and PNL_POW signal input at pins
(10 ) and (12 ) of P9602?
Are the DC/DC converter outputs and the output voltages along
the control lines as specified?
1) M+5.6V (IC9601)
2) D+1.0V (IC9612)
3) D+5V (IC9607)
4) BU +5V (D9610)
5) D+3.3V (IC9606)
6) D+1.5V(IC9608)
7) D+1.15V (IC9602)
YES
YES
8) BU+3.3V (IC9604)
9) D+2.5V (IC9605)
10) PNL +13V (A06405 )
NO Reconnect the wire harnesses and other cables properly in the
set.
NO Check the PS-ON signal li ne PNL _POW signal line.
NO Check the DC/DC converters and the control lines. Replace
defective parts as required.
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