Daewoo 103FH Service Manual download pdf (Page 28)

26

9. Abnormal Picture

9-1. Horizontal Size

Is the

changeable the

B+ line voltage?

Is the

gate voltage

of the Q521

correct?

OK

Trouble in D507, D520.

Abnormal

H. Size

Yes

No

Is the

waveform of the

pin6 in IC505

correct?

NO

Check the Q520, D505

and their ambient circuit.

Check the IC508, Q506

and their ambient circuit.

Yes

NO

Yes

NO

Yes

NO

Yes

Trouble in IC501.

226V

0

Yes

Control the VR501.

Check the pin 2 in IC505.

No

Is the

waveform of the

pin4 in IC505

correct?

Is the

waveform of the

pin1 in IC504

correct?

Is the

waveform of the

pin9 in IC501(E/W)

correct?

12V

0

3.0V

10V

1.4V

3.1V

2.6V

8V

7.5V

0

0

0

*At first, adjust controls in the OSD MENU.

1 2 ... 23 24 25 26 27 28 29 30 31 32 33 ... 57 58

Comments to this Manuals

No comments