4-10
4. Troubleshooting
4-1-4. No Video (Tuner_CVBS)
Symptom
No video with a tuner source.
-
Major
checkpoints
Check your source on the TV.
Check your source content.
Check all connections.
-
-
-
Diagnostics
40”
52”
No
Change the Main PCB
26” : BN94-02679D
32” : BN94-02679D
No
Does the CVBS data appear at
#8 pin of Tuner?
Power indicator LED is off.
Lamp(Backlight) on, no video
No
Check the HDMI source and
check the connection of HDMI cable
Check Tuner
Change the Main PCB
40” : BN94-02945D
52” : BN94-02945E
Yes
Check IC201 (Saturn4)
Change the Main PCB
40” : BN94-02945D
52” : BN94-02945E
No
No
Does the digital data appear at
Pin #16,17,34,35 (LVDS Data clk)
of LVDS connector?
Does the DC TU5V_PW, TU33V_PW
appear at #2, #4 Pin of Tuner?
No
Please, Contact Tech support
Check the LVDS cable?
Replace the LCD panel?
Yes
Yes
Input the RF source properly
Yes
Yes
4
2
Check a set
in the ‘Stand-by mode’.
Caution
Make sure to disconnect the power before working on the IP board.
Содержание N64D
Страница 62: ...4 3 4 Troubleshooting L1 B13V B5V B12V B5V 1 9V B3 3V B9V...
Страница 64: ...4 5 4 Troubleshooting Pin 16 17 Pin 34 35 TP67 TP69 TP71 TP72 TP70...
Страница 65: ...4 6 4 Troubleshooting WAVEFORMS 1 PC input V sink H sink R G B 2 LVDS output...
Страница 67: ...4 8 4 Troubleshooting Pin 16 17 Pin 34 35 Pin 12 Pin 7...
Страница 68: ...4 9 4 Troubleshooting WAVEFORMS 3 HDMI input RX_Data RX_Clk 2 LVDS output...
Страница 70: ...4 11 4 Troubleshooting Pin 16 Pin 17 Pin 2 Pin 4 Pin 8...
Страница 71: ...4 12 4 Troubleshooting WAVEFORMS 4 CVBS OUT Grey Bar 2 LVDS output...
Страница 73: ...4 14 4 Troubleshooting Pin 16 17 Pin 34 35 Pin 2 Pin 4...
Страница 74: ...4 15 4 Troubleshooting WAVEFORMS 2 LVDS output...
Страница 76: ...4 17 4 Troubleshooting Pin 16 17 Pin 34 35 V3CVBS COMY...
Страница 77: ...4 18 4 Troubleshooting WAVEFORMS 4 CVBS OUT Grey Bar 2 LVDS output...
Страница 79: ...4 20 4 Troubleshooting Pin 16 17 Pin 34 35 COMY COMPB COMPC...
Страница 80: ...4 21 4 Troubleshooting WAVEFORMS 5 Compnent_Y Gray scale Pb Pr Color bar 2 LVDS output...
Страница 82: ...4 23 4 Troubleshooting R416 B12V COMSL COMSR V2SR V2SL TP_L L R R DSL DSR TP_915 TP_916 B3 3V...
Страница 83: ...4 24 4 Troubleshooting WAVEFORMS 6 I2C Data 7 Speaker out...
Страница 119: ...6 6 6 Wiring Diagram Memo...