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4. Troubleshooting
„ TV POWER ON SEQUENCE TEST :
1. Power TV On
Power On/Off
(pin 19 ) .2Vdc (when off) changes to 3.3Vdc (on)
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NOTE
•
Will stay On for short time when powered off.
•
Frame TV will only go to standby with Function Assy Power Off command.
2. If voltage error or no change:
Jog Function & IR Control Test
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3. If OK remove One Connect Cable to Main Board.
TV power's on.
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4. If TV Power's On
One Connect Box & Cable for errors.
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5. If TV still won't power on
Check All
A13V
supplies 12.7VDC
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All
Vamp
supplies for approx. 12.7 VDC (pins 11
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6. If any wrong voltages, remove SMPS connector to Main Board
Check
A13V
again for approx 12.7VDC
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All
Vamp
supplies for approx. 12.7 VDC (pins 11
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7. If OK:
→
Replace TV Main Board.
8. If still wrong voltage:
→
Replace SMPS.
9.
BLU_PWM
Backlight On/Off & Dim Control: 1Vdc – 3.3 Vdc depending on backlight dimming level for video.
→
If missing/error replace Main Board.
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15 )
13
15 )
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