CONFIDENTIAL – DO NOT COPY
Page 9-
18
File No. SG-0219
14
PDP DISPLAY NOTHING(Digital 2 U35 with PORT B without screen)
Is picture on screen?
BLOCK 1
Is picture color ok?
Check U35 pin 90
Î
high
V sync
Î
R419
H sync
Î
R420
clock
Î
R421
No
Check +3.3V_SW
Î
FB19,FB20,FB21,FB22
U41
Î
+1.8V_HDMI1
Check Q44
source
Î
high(3.3V)
Check crystal
Î
Y2=28.322MHz
Yes
No
Check input source?
Yes
Yes
Check U35 I2C bus
Î
CSDA
Î
pin 39
CSCL
Î
pin 40
No
Check Q44
Gata
Î
high(5V)
No
Q44 fail
Yes
Check U35 all power
U35 fail
Yes
I2C addr.
Î
R424
No
Check Block 2
No
No
Check U35’s RGB data bus
B
Î
RP10,RP11
G
Î
RP12,RP14
R
Î
RP16,RP17
Check U37 I2C bus
SCL
Î
Pin 6
SDA
Î
pin 5
Yes
No
Check U37 power
5V
Î
Pin 8
No
Check D66 and D65
Are there 5V output?
No
D66 fail
or
D65 fail
Is picture on screen?
No
Summary of Contents for VP50HDTV10A
Page 55: ...CONFIDENTIAL DO NOT COPY Page 8 2 File No SG 0219 3 PDP_ 5Vsb CN3 4 4 FLI8125 U10 3 3V_I O_HUD...
Page 56: ...CONFIDENTIAL DO NOT COPY Page 8 3 File No SG 0219 3 3V_ADC_HUD 1 8V_ADC_HUD...
Page 57: ...CONFIDENTIAL DO NOT COPY Page 8 4 File No SG 0219 5 FLI8532 U13 3 3V_I O 1 8V_ADC...
Page 58: ...CONFIDENTIAL DO NOT COPY Page 8 5 File No SG 0219 2 5V_DDR 1 8V_CORE...
Page 60: ...CONFIDENTIAL DO NOT COPY Page 8 7 File No SG 0219 8 LM2660 5V_N of the U29...
Page 63: ...CONFIDENTIAL DO NOT COPY Page 8 10 File No SG 0219 4 MSP4450G crystal clock pin 55 of the U32...
Page 66: ...CONFIDENTIAL DO NOT COPY Page 8 13 File No SG 0219 V sync...
Page 67: ...CONFIDENTIAL DO NOT COPY Page 8 14 File No SG 0219 2 SiI9011CLU U35 and U42 CLK BHS sync...
Page 68: ...CONFIDENTIAL DO NOT COPY Page 8 15 File No SG 0219 BVS sync...
Page 69: ...CONFIDENTIAL DO NOT COPY Page 8 16 File No SG 0219...
Page 71: ...CONFIDENTIAL DO NOT COPY Page 8 18 File No SG 0219 3 3 3V DV33 C11 4 2 5V DV25 C185...
Page 72: ...CONFIDENTIAL DO NOT COPY Page 8 19 File No SG 0219 5 1 8V DV18 C64 6 1 25V 1V25_DDR C148...
Page 73: ...CONFIDENTIAL DO NOT COPY Page 8 20 File No SG 0219 7 1 2V DV12 C26...
Page 78: ...CONFIDENTIAL DO NOT COPY Page 9 3 File No SG 0219 DISPLAY BOARD IR BOARD...
Page 79: ...CONFIDENTIAL DO NOT COPY Page 9 4 File No SG 0219 ATSC BOARD...
Page 97: ...CONFIDENTIAL DO NOT COPY Page 9 22 File No SG 0219 TROUBLE OF THE DTV...
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