Hitachi 50VS69A, Service Manual

Page: 49 / 122

2-14
TEMP SENSOR DATA SETTING
2-14.1
Background and Outline
The TEMP Sensor is in the Drive PWB assembly in the OPT unit, and is monitoring inner temperature
.
LC67 Sensor: I608 (AD7414) on DRIVE P.W.B.
Main micro in Digital Core checks that temperature, and indicates LED alarm if the
temperature exceeds the limit.
i ) High Temperature: Alarm message is displayed for 5 minutes and
Power will be shut down with cool-down sequence.
(Only the power button is acceptable. Any menu and
message OSD cannot be displayed.)
ii ) IL01 failed or not connected: TEMP LED and LAMP LED are blinking
alternately. (Cycle; 1sec)
2-14.
2 Purpose
It's important to set the limiting data correctly. To do so, follow the next procedure.
2-14 .3 Adjustment Spec.
Adjustment procedure
1) Open ADJ menu and select DEVICE on the third page.
2) Input the data DEVICE "63" then press SELECT and input "ITEM" 0" then press SELECT to see
3) To change temperature limit, input the data DEVICE "13" then press SELECT, and input ITEM "0"
then press SELECT and input the adjustment data according to the below table.
4) Finally press SELECT to write.
BACK TO ADJUSTMENTS
4
8
Input Data
DATA(hex) MODEL
No.72
(Default data)
(4B)
50VS69A 40
LC67
55VS69A
62VS69A
40
40
the current temperature data.