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1
2
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4
G
A
Step 4-3: Reset
IC401(Pin 83) XVCRST(DEC) IC401(Pins 161-164, P22-P29 155-158) N1
M1
Is the voltage "H"(3.3V)? Yes IC501(Pin 3)
B
No
Check the parts and patterns in the path(IC501 - IC401). No Replace IC501.
IsDATA? a there Yes
No
Check the parts and patterns in the path(IC401 - IC1301 and IC401-IC1384). No Replace IC401.
XVCRST(ENC)
M2
Is the voltage "H"(3.3V)? Yes No Check the parts and patterns in the path(IC501 - IC601). No Replace IC501. IC401(Pin 80) XTAL
IC401(Pins 21-28)
P12-19
N1
Is there a DATA? Yes No
*Only 480p/576p/720p/1080i input Check the parts and patterns in the path(IC401 - IC1301 and IC401 and IC1383). No Replace IC401.
M1
Is there a CLK (28.63636 MHz) ? Yes No Check the X401 or IC402. No Replace X401 or IC402.
R436,R435
P10, P11
N2
Is there a DATA? Yes R431,R430 P20, P21 No Check the parts and patterns in the path(IC601 - IC401). No Replace IC401.
C
Step 4-4: I2C
IC401(Pin 121) Does a signal output in constant period (0 - 3.3 V) ? Yes
D
VCSDA
M1
No Check the parts and patterns in the path(IC501 - IC401 and IC501-IC601). No Replace IC501 or IC401 or IC601. IC401(Pin 122) Does a clock output in constant period (0 - 3.3 V) ? Yes VCSCL Is there a DATA? Yes R401(IC601 Side) No
N3
Check the parts and patterns in the path(IC601 - IC401). No Replace IC401. LLC *Only 480i/576i input
N4
Check the parts and patterns in the path(IC501 - IC401 and IC501-IC601). No Is there a CLK? Yes Replace IC401. R429,R428(IC601 Side) P22-29 *Only 480i/576i input No Check the parts and patterns in the path(IC401 - IC601). No
M1
No
Replace IC501 or IC401 or IC601.
E
N5
Is there a DATA? Yes No Check the parts and patterns in the path(IC401 - IC601). No Replace IC401.
Step 4-5: VIDEO CLK,DATA
IC401(Pin 17) LLC
M1
Is there a CLK? Yes No Check the parts and patterns in the path(IC401 - IC1301 and IC401-IC1381). No Replace IC401.
F
H
46
1 2
SC-LX81
3 4
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