Sharp 21F-PA330I 서비스 매뉴얼 - 페이지 14

{카테고리_이름} Sharp 21F-PA330I에 대한 서비스 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Sharp 21F-PA330I 28 페이지. Chassis ga-4

TROUBLE SHOOTING FLOWCHART (Continued)

NEITHER VERTICAL NOR

HORIZONTAL SYNCHRONIZATION

CIRCUIT TO BE CHECKED:

» Sync. Separator Circuit.

Check pins(5), (6), (10) and

(11) of IC801.

DEFECTIVE VERTICAL AMP.

AND VERTICAL LINEARITY

Re-adjust vertical size.

(Bus Data)

Vertical linearity and size are

abnormal.

Check R503, R506, R513,

R520 and C515.

NO VERTICAL SCAN

Check IC501 bias.

Check C511.

14-1

Check IC501.

TROUBLE SHOOTING FLOWCHART (Continued)

NO SPECIFIC COLOUR

Is some colour produced in

B/W broadcast reception ?

Check IC801.

The picture colour is cyan.

The picture colour is magenta.

Check Q855 and its adjacent

Check Q854 and its adjacent

circuits.

14-2

Is the white balance properly

adjusted ?

Re-adjust the white balance.

The picture colour is yellow.

Check Q853 and its adjacent

circuits.