6, General - Panasonic KX-F1200 Service Manual And Technical Manual

....... KX-F1200 i
6. GENERAL
6-1. UNIT DOES NOT WORK (NO FUNCTION AT ALL)
I
Does the LCD indicate I NO .. Check power supply.
any charactors ? I Display (Refer to page 37.)
I Err°ne°us Display I
Check reset circuit.
(Refer to page 38.)
I
Check clock pulse. I
(Refer to page 39.)
I
1
I
Check bus line. I
(Refer to page 40.)
I
l
Check key scan and input.
(Refer to page 40.)
Check IC404.
(Refer to page
Check IC405.
J
41.)
J
I
I
Replace IC401 or IC402 or IC403.
- 36 -