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Philips 32PFL4901/F8 BA4GF0F0102 2 Not getting standby led
Hello, guys!
The same 32" Philips TV I was having video issues, but now I don't have standby led at all. Someone here shared with me the schematic of the power supply, and checking the voltages, I see right after the resistor R604 I'm getting 1.6 v which is too low for enabling the Gate of the Q601 mosfet (the diagram says 4.2). On the R614 resistor I'm getting 181 V in and 117 V out, then through R603 I'm getting the same 117 V in and 59.9 V out, finally getting the latter voltage in the R604 BUT getting just 1.6 V out, which is the voltage that goes on to the Gate of the Q601... -
Thanks for your response!
The problem started before having the LVDS cable damaged. However, I know I do need to replace that 30-pin ribbon cable. However now I'm dealing with this new issue... it does not turn on (no standby light nor backlight). I've found a shorted diode on the primary side of the power supply, next to a mosfet. Checked the leds with a tester and they do light on; 44 volts shows the tester and I remember getting only 21 volts on its connector after pluggin' it in to the outlet.
PS.- I'm trying to find the schematic of the power supply. The model number...Leave a comment:
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