Service manual

A.
1. Power supply unit
84
TV is not turned ON
Is AC power Supply Input
Is Voltage output from both
terminals of C806 ?
Are I804, I805,I806
operated ?
Is Voltage of pin 40
of I701 "L" ?
Check P803 pin 2 125V
Is waveform of base
of Q301 normal?
Is feedback Voltage of
T801 TRANS normal ?
Be all right
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
No
No
Are diodes operated?
D802, D803, D804, D805
Check F801 & Power code
Check R803, C806
Are D811, D812, D813, D814
operated?
Check D811, D812, D813,
D814
Check each Regulator IC
I804, I805, I806
Check I701
Check D814 and trans
Check I701 1, 2
Check I801 STRS-5707
Check the
secondary
circuit
Check L801, D802, D803,
D804, D805