CONFIDENTIAL – DO NOT COPY
Page10-
21
File No. SG-0199
PDP N
O SOUND
PDP NO SOUND
Start
No
Yes
Check Audio AMP U19
has output?
Check U19.8 and U19.9
input siganl?
No
Check C436,C430
Audio power DC power ok?
No
Check F2 output has +24V?
No
Audio power fail
Block 3
Check audio AMP U19 has output?
No
speaker fail
Yes
U32 has output signal?
Yes
No
Appstest 90 1 0x14 0x3540
(Gprobe 5.0)
Is there 1KHz output?
No
U32 Fail
Check U32 input
Î
R372~R379
No
Check U27,U28 output
R326,R328
Î
Digital HD2,AV1
R332,R334
Î
Digital HD1,AV2
R348,R351
Î
Analog HD1,VGA
R356,R358
Î
Analog HD2
No
Check U27,U28 I2C bus
U27
Î
SDA=R344,SCL=R345
U28
Î
SDA=R359,SCL=R360
Check U27,U28
+5V power
Î
Pin 8,24,4
-5V power
Î
Pin 25
No
Check U29’s power
+5V_SW
Î
Pin 8
Yes
Check U29 output
-5V_N
Î
pin 5
No
U29 fail
Yes
No
Check Q35
Î
MSTR2_SCL
Q37
Î
MSTR2_SDA
Is there signal?
No
Check U13
Yes
Q35,Q37 fail
No
U13 fail
LCD
˖˻˸˶˾ʳ˔̈˷˼̂ʳ˵̂˴̅˷ʳ˄˝˅ʳˣ˼́˄ʳ˅ˇ˩
Audio board fail
YES
J11 Pin 1&3
J11 Pin 1&3
Содержание Gallevia GV46LHDTV10A
Страница 53: ...CONFIDENTIAL DO NOT COPY Page 9 2 File No SG 0199 3 PDP_ 5Vsb CN3 4 4 FLI8125 U10 3 3V_I O_HUD...
Страница 54: ...CONFIDENTIAL DO NOT COPY Page 9 3 File No SG 0199 3 3V_ADC_HUD 1 8V_ADC_HUD...
Страница 55: ...CONFIDENTIAL DO NOT COPY Page 9 4 File No SG 0199 5 FLI8532 U13 3 3V_I O 1 8V_ADC...
Страница 56: ...CONFIDENTIAL DO NOT COPY Page 9 5 File No SG 0199 2 5V_DDR 1 8V_CORE...
Страница 57: ...CONFIDENTIAL DO NOT COPY Page 9 6 File No SG 0199 6 NT5DS16M16CS 5T U16 U17 7 Am29LV320DT90 ED XU1...
Страница 58: ...CONFIDENTIAL DO NOT COPY Page 9 7 File No SG 0199 8 LM2660 5V_N of the U29...
Страница 61: ...CONFIDENTIAL DO NOT COPY Page 9 10 File No SG 0199 4 MSP4450G crystal clock pin 55 of the U32...
Страница 64: ...CONFIDENTIAL DO NOT COPY Page 9 13 File No SG 0199 V sync...
Страница 65: ...CONFIDENTIAL DO NOT COPY Page 9 14 File No SG 0199 2 SiI9011CLU U35 and U42 CLK BHS sync...
Страница 66: ...CONFIDENTIAL DO NOT COPY Page 9 15 File No SG 0199 BVS sync...
Страница 67: ...CONFIDENTIAL DO NOT COPY Page 9 16 File No SG 0199...
Страница 68: ...CONFIDENTIAL DO NOT COPY Page 9 17 File No SG 0199 ATSC Board 1 Voltage Measurement 1 12V 12V C4 2 5V 5V C239...
Страница 69: ...CONFIDENTIAL DO NOT COPY Page 9 18 File No SG 0199 3 3 3V DV33 C11 4 2 5V DV25 C185...
Страница 70: ...CONFIDENTIAL DO NOT COPY Page 9 19 File No SG 0199 5 1 8V DV18 C64 6 1 25V 1V25_DDR C148...
Страница 71: ...CONFIDENTIAL DO NOT COPY Page 9 20 File No SG 0199 7 1 2V DV12 C26...
Страница 76: ...CONFIDENTIAL DO NOT COPY Page10 3 File No SG 0199 DISPLAY BOARD IR BOARD...
Страница 77: ...CONFIDENTIAL DO NOT COPY Page10 4 File No SG 0199 ATSC BOARD AUDIO BOARD...
Страница 95: ...CONFIDENTIAL DO NOT COPY Page10 22 File No SG 0199 TROUBLE OF THE DTV...