NEC MultiSync 3D JC-1404HME Service Manual page 80

BLOCKDIAGRAM
SUB
PWB
PWE-250
VIDEO/CRT PWB PWE-249
/
CLAMP PULSE
CRT
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TTUANALOG
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R.G.B. D/A
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VIDEO VIDEO I
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VIDEO SIGNAL
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AMP
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FOCUS
SYNC SEPARATE
ANALOG
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64
H. V.
SYNC 16
-
SYNC SIGNAL -
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8
AUTO
H-SYNcT v-sYNc-
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T
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MODE SW
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COLOR
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CONT
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PWB PWE-248B
H-PHASE
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H-SIZE
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V. POSITION :
V. SIZE
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SW
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SW
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SW
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EE-PROM
CPU
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ER-5911
µPD 78C11 12 MHz H-OSC
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CONTROL
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µP06336C l CONTROL TRANS
TRANS
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H. OUTPUT
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COIL
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H. DRIVE
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I DC/DC
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MAIN PWB PWE-248A
22
r
SW. REG PWB PWE-253 (for JC-1404HME/EE/RI
170V
PWE-270 (for JC-1404HMEDI
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POWER
AC LINE
RECTIFIER CONTROLLER
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LINE
RECTIFIER I
DC/DC
SERIES REG.
5V
OV, 240V
FILTER
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CONVERTER
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!
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ERROR AMP :
85V 24V 12V 6V
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