I searched the forum first, but could not locate anything with this model Sony TV.
Sony KD-65X750F
There's good AC power going into power supply board. There is no standby light lit on the TV / no picture / no sound using either remote control OR power button on TV. I'm new at troubleshooting TV's, so here are the measurements I took. I am leaning toward thinking it's a main board issue, but wanted to see what others with experience thought. Anything I can go further test to help isolate the issue?
CN6401 Connector Pin measurements:
ODD Pins:
1 NC - 0 VDC
3 BL_ON - 0 VDC
5 STBY3 3V - 3.48 VDC
7 AC_OFF_DET - 3.48 VDC
9 POWER ON - 0 VDC
11 GND - 0 VDC
13 REG12V - 0 VDC
15 REG12V - 0 VDC
17 REG12V - 0 VDC
19 GND - 0 VDC
21 GND - 0 VDC
23 GND - 0 VDC
25 TCON_VCC 12V - 0 VDC
27 TCON_VCC 12V - 0 VDC
EVEN Pins:
2 DC_DIMMER - 0.007 VDC
4 PWM_DIMMER - 0.001 VDC
6 BLINKING (0.5 - 0.8 VDC range) fluctuating
8 BL_EAR - 0.039 VDC
10 GND - 0 VDC
12 GND - 0 VDC
14 REG 12V - 12.74 VDC
16 REG 12V - 12.74 VDC
18 REG 12V - 12.74 VDC
20 GND - 0 VDC
22 GND - 0 VDC
24 TCON_ON - 0 VDC
26 TCON_VCC 12V - 0 VDC
28 TCON_VCC 12V - 0 VDC
CAP 6524 Voltage across pins = 391 VDC
D6201 Voltage between gnd = 3.48 VDC
D6202 Voltage between gnd = 3.48 VDC
Sony KD-65X750F
There's good AC power going into power supply board. There is no standby light lit on the TV / no picture / no sound using either remote control OR power button on TV. I'm new at troubleshooting TV's, so here are the measurements I took. I am leaning toward thinking it's a main board issue, but wanted to see what others with experience thought. Anything I can go further test to help isolate the issue?
CN6401 Connector Pin measurements:
ODD Pins:
1 NC - 0 VDC
3 BL_ON - 0 VDC
5 STBY3 3V - 3.48 VDC
7 AC_OFF_DET - 3.48 VDC
9 POWER ON - 0 VDC
11 GND - 0 VDC
13 REG12V - 0 VDC
15 REG12V - 0 VDC
17 REG12V - 0 VDC
19 GND - 0 VDC
21 GND - 0 VDC
23 GND - 0 VDC
25 TCON_VCC 12V - 0 VDC
27 TCON_VCC 12V - 0 VDC
EVEN Pins:
2 DC_DIMMER - 0.007 VDC
4 PWM_DIMMER - 0.001 VDC
6 BLINKING (0.5 - 0.8 VDC range) fluctuating
8 BL_EAR - 0.039 VDC
10 GND - 0 VDC
12 GND - 0 VDC
14 REG 12V - 12.74 VDC
16 REG 12V - 12.74 VDC
18 REG 12V - 12.74 VDC
20 GND - 0 VDC
22 GND - 0 VDC
24 TCON_ON - 0 VDC
26 TCON_VCC 12V - 0 VDC
28 TCON_VCC 12V - 0 VDC
CAP 6524 Voltage across pins = 391 VDC
D6201 Voltage between gnd = 3.48 VDC
D6202 Voltage between gnd = 3.48 VDC
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