Samsung CL-21M40MQ Service Manual page 67

Circuit Description
13-2 Partial Block Description
13-2-1 System Board Block Description
Tuner
IF-OUT
HC101
SCL SDA
PRE-AMP
SCL
IC202
EEPROM
24C04
SDA
FROM
A+5.0V
EXTERNAL DVD
INPUT TERMINAL
* UOC TDA9377PS/N3/A.It contains the entire IF, audio, video, display and deflection processing for 4:3 and 16:9 50/60Hz mono
and stereo TV sets. The integrated microcontroller is supported by a powerful OSD generator with integrated Teletext and CC
acquisition
* ST2001HI: Inputed H-DRIVE signal which comes from TDA9377PS/N3/A.It amplify the H-DRIVE then output to Deflection Yoke.
* LA78045: Inputed VDP signal which comes from TDA9377PS/N3/A.It amplify the VDP then output to Deflection Yoke.
* TDA7297SA:It is a dual channel audio amplifier.The two audio signals L and R input to it and are amplified,
then output to speaker.
* 6107:It includes three video output amplifiers and is intended to drive the three cathodes of a color CRT directly. The output
R,G,B signals will connect to the CRT socket pins directly.
* EEPROM: As a extended ROM of TVT. It contains some data which is used to program executing.
* KA5Q0765RTH:SMPS control HIC. Provide switching signal in order to control the trans working.
* TDQ-6F/13F2S(TUNER):Receives the RF signal and output a fixed IF to Micom.
* Micom Block consists of five aspects as: Video & Sound IF Processor, Video Processor, Display and Deflection Processor and
Controller, OSD,Text Processing.
* TUNER-F/S;TDQ-6F/13F2S(tuner) : RF signal processing , Output IF signal
13-2
All manuals and user guides at all-guides.com
A-1-IN
JA701A
EXTERNAL A/V
A-2-IN
INPUT/OUTPUT
A-1-OUT
TERMINAL AUDIO
TDA7297SA
A-2-OUT
PART (RCA)
FROM EXTERNAL TERMINAL
Y Pb Pr
IC201S UOC2
TDA9377PS/N3
SCL SDA
IC301
VDP IN
LA78040N
H-DRIVE /IN
Q401
ST2001HI(028
Y)
Pr
Pb IC201s Y/Pb/Pr
INPUT PORT
(RCA) Y
IC801S
KA5Q0765RTH-YDTU
A-L-OUT
IC603
A-R-OUT
R-DRIVE/OUT
IC501 G-DRIVE/OUT
CRT&D-YORK
6107
B-DRIVE/OUT
H.V/OUT
V-AMP/OUT
TO IC501
VCC 180V
+16.5V
-16.5V
H.V/OUT
TUNER 33V
TO SOUND AMP VCC 13V
T801S TO FBT VCC 125V
Switch Trans
IC802
7632
B+8V,B+3.3V
FROM HEATER
S
C F
H
R O
E C I
G
E U
N S H
V V
V
O O H O
L L
L E
T T A T
A
A A T
G G E G
E
E E R
FBT FUH29A001G
125V
A804
KSC2073-H
B+5V
Samsung Electronics