Casio SF-8350, Руководство по обслуживанию и список запасных частей

Страница: 32 / 37

— 31 —
Poor connection? Solder line
No
Replace parts.
Yes
1
Pin 31 of SC371015FU "H"?
Solder line
Yes
Pin 30 of
µ
PD65005G-452-22 "H" ?
1
LCD drive voltages OK?
(Pin8~12)
Yes
Poor connection on chip
resistors R8~R10 ?
Poor connection?
No
Poor connection on chip
capacitor C7~C8 ?
Chip capacitor OK ?
Solder line
Yes
No
Chip resistor OK?
Replace SC371015FU.
1
Replace parts.
No
Poor connection or cut of heat seal cable ?
Yes
Replace heat seal.
1
Poor connection on LCD driver ?
Yes
1
Solder line
Poor connection or cut of heat seal cable for LCD ? Replace heat seal.
1
Yes
LCD cracked ?
Yes
1
Replace LCD.
No
No
Repleace Display PCB ass'y.
1
Repair section 3 : For memory problem
Poor connection on RAM chips ?
Yes
No
Poor connection on CPU ?
Replace RAM chips or CPU.
Solder line
1
Yes
No
No
No
Yes
Yes
Yes
Yes
No
No
No
Yes
No
No
START
START
Repair section 2 : For no display or wrong display problem