Audiovox CX15 Service Manual download pdf (Page 49)

PT3-H AVC3-U

49

Protection circuit O

p

eration

Is D944(K) voltage

below 2.8V?

Check D933, D936, etc.

Or check AV PWB.

Yes

No

B.

Is D940(A) voltage

below 3.8V?

Check D934, I930, I931,

I933, etc.

Yes

No

Is D939(A) voltage

below 3.8V?

Check D935 etc.

Or check AV PWB.

Yes

No

Is D947(K) voltage

above 5.7V?

Check I931, D950, etc.

Yes

No

Is D948(K) voltage

above 6.6V?

Check I933, D949, etc.

Yes

No

Is D955(K) voltage

above 9.5V?

Check I930, D959, etc.

Yes

No

Check Q933 etc.

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