— 29 —
Generally, check the machine with the followning steps for repair.
Main battries 6V?
Key input OK?
No
Save data to P/C if necessary.
Current consumption OK?
Follow repair section 2.
Follow repair section 3.
No
Replace main battries (CR2032 2pcs.)
Display OK?
Load data from P/C if necessary.
Yes
Yes
Yes
Data OK?
END
No
Follow repair section 1.
Main battery switch ON
(Clean and adjust battery contact.)
Reset operation
Yes
Repair section 1 : For no key input problem
Pin 2 of SC371015FU Approx. 4.5 V ?
Poor connection?
Solder line
No
Replace parts.
Yes
1
Pin 24 of
µ
PD65005G-452-22 "L"?
Poor connection?
Solder line
No
Replace parts.
Yes
1
Yes
No
Pin 40 of
µ
PD65005G-452-22 "L" ?
Poor connection?
Solder line
No
Replace parts.
Yes
1
Poor connection?
Solder line
No
Replace parts.
Yes
1
Pin 36 of
µ
PD3055GF002-2BA "L" ?
Poor connection?
Solder line
No
Replace parts.
Yes
1
Pin 54 of
µ
PD3055GF002-2BA "L" ?
Yes
Yes
Yes
Yes
2
No
Yes
No
No
No
No
No
START
1
Yes
START
No
12. TROUBLESHOOTING
Key input OK?
CONDITION :
Содержание SF-8350
Страница 1: ...SF 8350 LX 572 JUNE 1993 R without price...
Страница 3: ...1 1 SCHEMATIC DIAGRAM 1 1 Main Block...
Страница 4: ...2 1 2 Display Block...
Страница 5: ...3 1 3 Key Matrix...
Страница 14: ...13...
Страница 33: ...32 13 PARTS LIST SF 8350...
Страница 34: ...33...
Страница 35: ...34 14 PCB VIEW SF 8350...
Страница 36: ...35 15 ASSEMBLY VIEW SF 8350...
Страница 37: ...8 11 10 Nishi Shinjuku Shinjuku ku Tokyo 160 Japan Telephone 03 3347 4926...