Hitachi C11XMB Service Manual page 12

Power can not be turned on
Are
voltage input at
pins (1)(4)(6)(8) of E800
on the PWB assembly
Main at standby
mode?
(1): 0V
(4): +15V
YES
(6): +6.6V
(8): +4.1V
What is the state of
TEMP indicator D302?
Not light
What is the state of
LAMP indicator D303?
Not light
PWB assembly Main
PWB assembly Main
CP-X444(C11XMB)/CP-X440(C11XM25)
Disconnect
TSW form Power unit
NO
(circuit). And check
TSW short or
open?
Power unit (circuit)
Blinks
Jump to * on the page 13
Blinks
Is the LAMP DOOR
Unplug
power cord and
Short (0 )
disconnect cable CNLC from
E803, then measure resistance
between pins (1)
and (2) of
PWB assembly Limit SW
Open
Short
Fuse on the
Filter unit
NG
Set the LAMP DOOR
set?
OK
CNLC.
Open
12
TSW
Filter unit