Samsung CF21M, Service Manual

Page: 9 / 76

8 Block Diagram
CF21M* 8-1
VIDEO
OUTPUT
LM2412
BNC/D-SUB SELECT
IC
S5D2507B
VIDEO
CUT
OFF
CONTROL
HORIZONT
AL
BLANK
HIGH LIGHT
CONTROLER
S5D2520
HORIZONT
AL
BLANK
AC INLET SOCKET
LINE FIL
TER
RECTIFIER
D3SBA60
AC INPUT 90-264V
AC
60/50Hz
DEGA
USS
OPERA
TION
D-COIL
SWITCHING TRANS
+29V
+14V
+6.3 -14V -14V_I
+80V +210V
H-DRIVE
CR
T HEA
TER
VER
T OUT
12V OUTPUT
CONTROL
DEGAUSS S-RASTER
H-SYNC/
V
-SYNC
OUT
SDA/SCL
CR
YST
AL
24MHz
PFC
CONTROL
R G B
CR
T
R G B
MICROPROCESSOR
ST72T774
S-CORRECTION
LED
VIDEO PRE-AMP S5D2503
OSD S5D2509
SDA/SCL
ERR
OR
DETECT & FEED BA
CK
POWER SYNC
H-SYNC
TRIGGER
PWM CONTROL &
SWITCHING FET
DP408
BNC/D-SUB
R.G.B
H-SYNC V
-SYNC
INPUT
H-SYNC V
-SYNC
PO
WER OFF
CONTR
OL
VIDEO OUTPUT
H_DRIVE B
+
VOL
T
AGE
REGULA
T
O
R
KA78R12
VOL
T
A
GE
REGULA
T
O
R
33269T
+5V
SOG
HOR.VER. OSC
PR
OCESSING
TDA9112
H/V DRIVE
DYNAMIC FOCUS
HORIZONT
AL
FOCUS CIRCUIT
H-AFC
HOR. OUTPUT
H-D
Y
HORIZONT
AL
REGULA
TION
CONTR
OL
HOR. REGULA
TION
OUTPUT
(PWM CONTROL)
BRIGHTNESS
CONTROL
MUTE
REGULA
TION
SENSER
HOR. DRIVE
S-CORRECTION
FBT
H/V OUTPUT
J6820
H/V REGULA
TION
ERROR FEEDBACK
X-RA
Y
PR
O
TECT
OR
VER
TICAL BLANKING
GENERA
T
O
R
VER
TICAL OUTPUT
V-
D
Y
HORIZONT
A
L
FOCUS
VER
TICAL FOCUS
+12V
HIGH VOL
T
A
GE
SCREEN
G2
FOCUS1, 2
H_LIN.
MOIRE
TIL
T
CLAMP
A
CL
MENU KEY
H-FLB V-
F
L
B
SDA
&SCL
ACL
CLAMP
CLAMP
H_FLB
V_FLB
H-LIN
MUTE
DDC-DA
T
A
DDC-CLK
SELECT from MUC
SOG