Samsung UN40C7000WFXZA - Page 2

Fast Track Troubleshooting Manual
Power On Sequence:
1. Standby Voltage, (CNM802, #16, 5v)
2. Power On, (CNM802,#18, 0-1.5v)
3. Low Voltage Supplies On, (D12, D5.3V)
4. High Voltage Supplies On, (CNM802, #4,
BLU_ON)
5. Back Light “On” Confirmation
2
To Force Backlight On:
1. Remove AC and Main Bd Pwr cable (CN201)
2. Short “Power On/Off” to Stdby +5
(CNM802, #16 to #18)
3. Apply AC power
4. Backlight should be on immediately.
Woofer
CNM802
CNM802
1
D12V
2
Vdrv_Det
3
D12V
4
BLU_On/Off
5
D12V
6
PWM_DIM
7
GND
8
H_Sync
9
GND
10
GND
11
D5.3V
12
GND
13
D5.3V
14
D5.3V
15
Vamp
16
STBY
17
Vamp
18
Power On/Off
UN40C7000WFXZA