Sharp XG-XV1E Service Manual download pdf (Page 40)

XG-XV1 E/A

TROUBLE SHOOTING TABLE

(Continued)

No or unusual horizontal sync

I

Is there horizontal sync pulse output

No

at pin (56) of

IC801?

Yes

-------------___

t

Check

IC801

and its peripheral

t

I

v

t

circuits.

I

I

---------------_I

Is there horizontal sync pulse output No

at pin (9) of

IC603?

Yes

-----___----____

,

Check the pulse shapinq circuit of

t

*

t

IC601,

IC6b2

and

IC603.

I

I

----------______

-----------_____I

, Check

PC604

and its

Deripheral

I

;

circuits, and go to “Checking the clock

i

, circuit and its peripheral circuits”.

,

-----------____-I

No or unusual vertical sync

Is there vertical sync pulse output at No

pin (4) of

IC801?

Yes

I

---------------_

I

Check

IC801

and its peripheral

t

circuits.

I

I

---------------_

----------------I

t

Check

IC604

and its peripheral

I

, circuits, and go to “Checking the clock

i

,

circuit and its peripheral circuits”.

---------------A

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