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Philips 34cm tv turned itself off.

W

whitebridge

Jan 1, 1970
0
Looking for Philips KR3684 34cm tv (circa 1980's) service manual, especially now it switched itself off (fuse OK, degausser sounds like it comes on, +300vdc present on filter cap, standby light off).

Anyone know where I can source old Philips' tv schematics, even just it's startup circuit?
 
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Franc Zabkar

Jan 1, 1970
0
Looking for Philips KR3684 34cm tv (circa 1980's) service manual, especially now it switched itself off (fuse OK, degausser sounds like it comes on, +300vdc present on filter cap, standby light off).

Anyone know where I can source old Philips' tv schematics, even just it's startup circuit?

Without knowing anything about your particular set, I'd look for an
open circuit startup resistor (~300K) connecting your PWM controller
IC, or the base/gate of your chopper transistor, to the +300vdc
supply.

- Franc Zabkar
 
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