Sharp Aquos LC-20E1E, Service Manual

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17
LC-20E1E
TROUBLE SHOOTING TABLE
(Continued)
No picture (3/3)
Check all the settings microprocessor
’s adjust process menu.
Is output of R0~R7 normal? Is output of G0~G7 normal?
Is output of B0~B7 normal?
Yes Yes
No No No
Colour is unusual
Is in/output of SPIO and SPOI normal?
No
No picture image inversion
No
Gradation defect
Is output of U/D normal?
Yes
No
Check R1202 and its peripheral parts.
Check R1209 and its peripheral parts. Check IC1206, IC1207, Q1201 and their peripheral
Check R1203 and its peripheral parts. Check R1204 and its peripheral parts.
Is output V0, V7, V17, V21, V32, V64, V122, V176, V235 and V255 normal?
Check IC1106, IC1107, IC1108, IC1114, IC1115 and their peripheral parts.