10 Block Diagram
CHA42*7L/5**7L
10-1
CR
T
FBT
T501
RGB
HOR FL
YBACK
(FROM Micom)
FROM Micom
12V
HEA
TER
FOCUS
SCREEN
HOR. FEEDBACK
V
-BLANKING
H/V SYNC
RGB
VIDEO BOARD
H/V
ABL
Pre-Amp
IC101 (KA2504)
TRAP
, P
ARA,
S/PIN, H-POSI,
V
-SIZE, V
-POSI
VER
T
, OUTPUT
IC301 (TDA9302H)
V
-DY
CN301
CN302
V
-BLK
CIRCUIT
Q301
(KSC945)
HOR-DEFLECTION
STEP-UP
CONVERTER
Q508 (IRF630A)
H-OUT
Q402
(KSC5088)
CRT HEA
TER
6.3V
SWITCHING
TRANSFORMER
T601
RECTIFIER
D604~D607
(IN5397)
PWM
CONTROL
IC602
(KA2H0680)
LINE FIL
TER
L602
DEGAUSSING
BLOCK
RL601, Q601
(KSC945)
AC-INLET
SOCKET
IS601
FEED BACK
OP601 (L
TV817),
IC601 (TL431)
POWER OFF
CONTROL
Q603 (KSB1
1
16),
Q604 (KSC945)
H-OSC & V
-OSC
IC401 (TDA9109)
H-DRIVE
Q403, T401
(KSC2331)
TO D - COIL
ON THE CRT
M/DEGAUSS
(FROM Micom)
MAIN BOARD
SUSPEND CONTROL
Q602 (KSC945)
45V
H/V
SCREEN
FOCUS
H/V SYNC
Micom
IC202
(KS88961
16N)
SIZE, POSITION
GD, DEGAUSS,
RECALL
D - SUB
RGB
VIDEO
MAIN AMP
LM2409
VIDEO
OUTPUT
RGB
CUTOFF CONTROL
13V
5V REGULA
TION
IC603 (KIA7805)
5V
12V
12V REGULA
TION
Q605, Q606, C637,
D621, D622, D623
-12V
76V for V
ideo
56V
1
150V Pulse
56V
Q101R,G,B
Q102R,G,B
BRIGHTNESS
CONTRAST CONTROL
Horizontal
Blanking (Q510)
ABL
CIRCUIT
D518, Q501
(KSC945)
CRT
DRIVE
HEA
TER G1
ABL
CONTROL
From IC101
G1 Control
(Q504.R520,
R521)
G1
–210V
T
o
IC101
T
o
IC101
AFC
Summary of Contents for CHA4217L
Page 2: ...Samsung Electronics Co Ltd August 1998 Printed in Korea Code No BH68 61127A ...
Page 10: ...Memo 3 Product Specifications 3 4 CHA42 7L 5 7L ...
Page 14: ...5 Disassembly and Reassembly 5 2 CHA42 7L 5 7L Memo ...
Page 62: ...9 Electrical Parts List 9 14 CHA42 7L 5 7L Memo ...