35
Troubleshooting
No Sound
HP / Lineout only
BMX Power On checking
This is for Main SP got sound, but HP / Lineout no
sound
3-3-4. No Sound: HP / Lineout Only for BMX board only
No
Checking Item
OK
NG
If
NG
1
Insert HP Jack. Check R7705
Vdc = 3.3V ± 0.3V
Vdc = 0V or < 1V
Check HP_DET line
(R7705 – for BMX)
got short to GND? If short to GND
replace board
.
2
Check IC7701 Pin 5
(X_AUDIO_MUTE_ SPHP)
Vdc = 3.3V ± 0.3V
Vdc = 0V or < 1V
Check X_AUDIO_ MUTE_ SPHP
(Pin 5) short to GND. If short to
GND replace board.
3
Check JL7701 and JL7702.
(with audio signal input)
Can see audio signal
waveform
Cannot see audio signal
waveform
Go to below item No. 4 for
checking
4
Check IC7701 pin 9
Vdc = 3.3V ± 0.3V
No 3.3V supply.
5
Check R7707, R7708
(with audio signal input)
Can see audio signal
waveform
Cannot see audio signal
waveform
Muffin IC (IC1000) NG
GN1 Main Board Power On Checking
Содержание KDL-50W7 C Series
Страница 2: ...LCD TV SERVICE MANUAL COMMON GN1G CHASSIS Segment XM A ...
Страница 14: ...BMX Board PWB A side Detail 3 3V 1 5V 5 0V C9224 F9016 C9222 F9015 C9216 C9213 R9321 F9013 C9188 R9277 C9185 ...
Страница 16: ...16 BMX Board PWB A side Detail 3 3V_MAIN C9005 PIN1 Q9002 ...
Страница 26: ...26 Troubleshooting BMX Probing Points I2C Line Check BMX A Side CL8412 I2C_S_CLOCK CL8411 I2C_S_DATA ...
Страница 28: ...28 Troubleshooting BMX B Side JL9008 3 2 5 LED BLINKING 6x Backlight Error ...
Страница 43: ...43 Troubleshooting BMX Probing Points BMX B Side JL8401 PANEL_VCC ...
Страница 44: ...44 Troubleshooting F8401 12V_REG BMX Probing Points BMX A Side ...
Страница 45: ...45 Troubleshooting IC9013 Pin 4 BL_ON BMX Probing Points BMX A Side ...
Страница 46: ...3 4 1 Video Analog Signal Path 46 ...
Страница 49: ...49 C6302 R6069 R6303 BMX BOARD A Side Troubleshooting ...
Страница 52: ...52 BMX BOARD A Side C6302 R6069 R6303 Troubleshooting ...
Страница 54: ...54 BMX BOARD A Side R6016 R6015 C6004 R6001 C6005 R6002 Troubleshooting ...
Страница 55: ...55 R6321 R6322 BMX BOARD A Side Troubleshooting ...
Страница 57: ...CN5401 R5425 R5427 R5424 RB5405 RB5406 RB5407 RB5408 57 BMX A side HDMI1 Troubleshooting ...
Страница 59: ...BMX A side HDMI2 CN5601 IC1000 R5606 R5616 R5615 RB5603 RB5604 RB5609 RB5610 59 Troubleshooting ...
Страница 61: ...CN5601 IC1000 R5611 R5602 R5603 RB5605 RB5606 RB5600 RB5601 61 BMX A side HDMI3 Troubleshooting ...
Страница 63: ...CN5602 IC1000 R5614 R5608 R5607 RB5607 RB5608 RB5612 RB5613 63 BMX A side HDMI4 Troubleshooting ...
Страница 65: ...R5445 R5444 R5443 R5424 65 BMX A side Troubleshooting ...
Страница 67: ...67 Troubleshooting Voltage check Power Key Muffin Pin R1089 R1085 Voltage check Key AD muffin Pin BMX A SIDE ...
Страница 69: ...R1124 R1062 69 BMX A SIDE Voltage check IR Muffin Pin ...
Страница 71: ...R1061 71 BMX A SIDE Voltage check Opt_Sensor Muffin Pin ...
Страница 94: ...94 5 3 Connector Diagram Diagrams 5 3 1 43 ...
Страница 95: ...95 5 3 Connector Diagram Diagrams 5 3 2 50 ...
Страница 96: ...96 5 3 Connector Diagram Diagrams 5 3 3 55 ...
Страница 97: ...97 English 2015 07 Sony EMCS Malaysia Sdn Bhd RDCM 9 888 172 04 ...