NEC MultiSync 3D JC-1404HME Service Manual page 81

BLOCKDIAGRAM
SUB PWB PWE-250
CLAMP PULSE
VIDEO SIGNAL
TTL/ANALOG
~ H
R.G.B.
D/A
I
SENSOR DECODER
CONVERTER
I
ANALOG
~
I
· ~
SYNC SEPARATE
to------------
TTL
64
-
SYNC
16
SYNC SIGNAL -
I/F
-
8
AUTO
- - ----:T _____
H-SYNC V,SYNC
l
l
• •
.___..
EE-PROM
~
CPU
~CLOCK
H-PHASE
r-
ER-5911 ~
µPD 78C11
LJ
12MHz
CONTROL
H-F/V
H. PHASE
t
l
I
I D/A CONVERTER I
I
µPD6336C
fH
BAND SIGNAL
MAIN PWB PWE-248A
AC LINE _ _
-1
220V, 240V
POWER
LINE
FILTER
SW. REG PWB PWE-253
(for
JC-1404HME/EE/R)
PWE-270
(for
JC-1404HMED)
-------
RECTIFIER
CONTROLLER
~RROR AMP
r
V-OSC
--------
H·OSC
t
H.SIZE
VIDEO/CRT P'
•
I
VIDE
I
PRE A
AN1
-----
T
MODE SW
I
B,W COLOR
I
H-PHASE
!
SW
H
V-SIZE
CONTROL
'
,-
V.
SIZE
V-FN
V. POSITIO
H. SIZE
-
CONTROL
IS.CORRECTIOr
I
CAP.
RECTIFIER