Table of Contents
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28. H-DC-SHIFT
29. Rotation
30. ABL-CON
33. Keypad
34. Selftest
36,37. DDC bus
38,39. IIC bus
40, VCLK
EEPROM
42. H-linearity
Back
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Repair Flow Chart
check
output from 0V to 5V
check
output from 0V to 5V
check
output from 0V to 5V
check key
Enter,Up,Down,Left,Right keys
check pin34
1.no H/V sync & IF cable pin5 floating
2.H/V sync exist & IF cable pin5 to ground
3.H/V sync non-exist & IF cable pin5 to gnd
4.connect a 15k resistor with IFcable pin5
5.connect a 5k1 resistor with IF cable pin5
check idle status
sda=pin36=hi
scl=pin37=hi
check idle status
sda=pin38=hi
scl=pin39=hi
check 7803 pin 7
Low
: write enable
Hi
: write disable
check
output from 0V to 5V
107S2 CM23 GSIII
9
Go to cover page
check 3836, 2821
3891~3895
- show msg.
- normal
-power saving
-factory mode
- burn in mode
check
7804
24LC21
check
7803
24LC16
7501
TDA4841
7304
MTV018-27
7301
TDA4886
43
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