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DP14L*/DP15L*
VIDEO PRE-AMP IC101 VIDEO OUTPUT IC103(LM2439)
SIGNAL
RGB SOCKET
RGB - CUTOFF QR, G,B01,02 G1 HEATER
VIDEO INPUT
9 Block Diagrams
H/V SYNC
H/V
MAIN BOARD
F O C U S
S C R E E N
FRONT CONTROL KEY VER. OUTPUT IC301 H/V SIZE REG. HOR./VER. PROCESSOR IC401 HOR. DRIVE Q401 H. D. T T401 HOR. OUT Q402 VER. DY GT301, GT302
H-SYNC, V-SYNC
H-SYNC1 V-SYNC1 E/W_OUT
FBT T501
-210V +30V
UP, DOWN BRIGHTNISS CONTRASTER PIN, TRAP SIZE, POSI, DEGA.
MCU IC201
12C DATA 12C CLK
B(+) ACL CIRCUIT +12V
LED POWER S-COR. FROM MCU Q406, Q408
REG.
HOR. DY CN502, CN503
CONTRAST CONTROL G1 BRIGHTNESS CONTROL
CONTRAST CONTROL
VER. BLANKING Q301
EPROM IC203
24LC04 TO VIDEO +12V +53V +13V -12V +6.3V
V-MUTE S-CORRECTION PS-1(SUSPEND) PS-2(POWER OFF) HOR. LINEARITY
BRIGHTNESS CONTROL
TILT IC302
+70V
TO D-COIL
+12V REGULATOR VER.OUT & TILT CONTORL HEATER VOLTAGE CONTROL
PS-1, PS-2(From Micom) -210V (FROM FBT)
ON THE CRT
DEGAUSSING BLOCK RL601
POWER PWM CONTROL IC601
SWITCHING TRANS T601
CRT HEATER
BRIDGE POWER-OFF MODE CONTROL Q604 PS-2
AC INPUT SOCKET CN601
LINE FILTER L601
RETIFIER
D601
9-1
9 Block Diagrams
Memo
9-2
DP14L*/DP15L*