Hitachi CM771ET, Service Manual

Page: 1 / 57

CAUTION:
Before servicing this chassis, it is important that the service personnel must read the
“Safety Preca
u
tions” and “Product Safety Notice” in this Service Manual.
CONTENTS
FEATURES...........................................................................................................................2
SAFETY PRECA
U
TIONS.....................................................................................................
.
2
CHECK OF HIGH VOLTAGE HOLD DOWN CIRCUIT.........................................................2
PRODUCT SAFETY NOTICE...............................................................................................3
SPECIFICATIONS ................................................................................................................3
CONTROLS ..........................................................................................................................4
SIGNAL TIMING CHART ......................................................................................................5
D
E
SCRIPTION OF CIRCUIT .................................................................................................7
TRO
U
BLESHOOTING...........................................................................................................16
ADJUSTMENTS..................................................................................................................20
WIRING DIAGRAM.............................................................................................................24
BLOCK DIAGRAM ..............................................................................................................25
P.C.B.A. ASSEMBLY ..........................................................................................................26
DISPLAY ASSEMBLY.........................................................................................................45
ATTACHMENT A ................................................................................................................54
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
HIGH RESOLUTION COLOR DISPLAY MONITOR
DJ72 Chassis
H972
(CM771U/ET)
(CM772U/ET)
SERVICE MANUAL
YK
SM 0401
(V1.0)
(Sept. 2000)