Hitachi FS3 Series, Service Manual

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88
TROUBLESHOOTING
1.3.4 SELF - CHECKING OF 7 - DAY TIMER (PSC-3T)
This procedure is utilized for regular maintenance check, and if the 7-day timer is malfunction.
1 Turn ON the main power switch.
”
2
Checking of LCD and Indicating Circuit:
Simultaneously depress the following 4 switches, [HOUR] of
”PRESENT TIME” [PRESENT DAY] of ”DAY OF WEEK”
[ON TIME] [OFF TIME] of ”MONITOR”.
During operation, they can be depressed.
All the LCD indications activated, for 5 seconds.
”
All the LCD indications deactivated, for 1 second.
By depressing a particular touch type switch, the
corresponding segment is activated.
3
Checking of Touch Type Switch Function:
Depress all the touch type switches one by one. Any one of
the switches can be depressed.
Normal:
After 15 Seconds
”
4
Completion of self-checking, ”77” is indicated, for 3
seconds.
”
5 Return to the indication before the self-checking.
A8
77
Minute
(Present time)
Hour
(ON/OFF TIME)
Minute
(ON/OFF TIME)
Hour
(Present time)
Cancel
Set
OFF
Time
Return
Set/Reset
Present Day
Set/Monitor
Select
ON TIME