Service manual

45
28KF-84H
BLOCK DIAGRAM
A A
B B
C C
D D
E E
4 4 3 3 2 2 1 1
TH 201
TUNER
SAW SF 201 SF 202 SAW
IF
IC 201
TDA 9886
AV-1
21 PINS
SCART
Q723 Q724 T701
SWITCHED MODE POWER SUPPLY
MAIN REG.
KA431
+150V
ST-BY REG. KA431
+12V
OSD
MICROCONTROLLER
IC6001
SDA5550
VIDEO
PROCESSOR
IC 6007
VSP9402
DISPLAY & DEFLECTION
PROCESSOR
IC 6006 SDA9380B
IC303
MSP 3410 G
SOUND PROCESSOR
+16V
-16V
+16V
-16V
TDA7480
TDA7480
C.R.T.
H.V.
VERT. DEFLECT. COIL HORIZ. DEFLECT. COIL
H
DIGITAL MODULE TVTextPRO
OSD
IC6002
FLASH MEMORY
NVM
IC6003
AUDIO
AUDIO
RGB
+13V
Q 502
-13V
TDA 7480L
Q 503
VERTICAL POWER
VERTICAL FLYBACK
RGB
CRT MODULE
HEATER
H.V.
+13 V
-13 V
+200 V
+25 V
HORIZONTAL
FLYBACK
TRANSFORMER
T601
RGB
AUDIO SUB-CARRIER
CVBS
IF
REG.
IC202
+33V
Q 601
HORIZONTAL DEFLECTION
Q 602
EW MODULATOR
EW DRIVER
IC 601
H. DRIVER
Q 605 Q 613
EW
H.OUT
IC708
LM317T
Q 710
IC704
CURRENT LIMITER
Q796
Q706
IC 706
M 1000
IR DETECTOR
PFC IC701 Q701 T702
EMI
FILTER
230V AC 50Hz
ST-BY
D6001 Q6005
D6006 Q6007
SC 703
D723
+8V
+12V
IC 301
IC 302
FRONT MODULE
SVM
SVM
MAINS AREA
L
R
Y-C
S-VIDEO
ST-BY
VIDEO
VIDEO
FRONT MODULE
28 / 32KF-84H BLOCK DIAGRAM (GA-200 CHASSIS)
SCREEN
FOCUS
+13V
ROTATION
-13V
AGC
FRONT VIDEO
T 1602
DYNAMIC MODULE (ONLY 32")
UV1316/A 1-2
IC 706 IC 707
+16V AUDIO -16V AUDIO
+12V
+5.5V
-6V +150V
1.8V+3.3V
+2.5V STBY +3.3V STBY
+8V+3.3V
+150V
+180V
+13V
+1.8V
+5V
+3.3V
+5V STBY
+3.3V STBY
+5.5V
+13V +8V
+3.3V STBY
+2.5V
+5V
+5V
+200V
-13V
+13V
+13V -13V
+13V
+5V
-6V
+5V
.
+12V
+12V
+150V
+25V
FUSE
AUDIO OUT L AUDIO OUT R
IC 304
M5218L
HEADPHONE CONECTOR
IC 502
BA4558
V DRIVER
IC850-1-2
TDA6111
RGB
AMPLIFIERS
IC 501
IC 1601
I2C
I2C33
I2C
I2C33
I2C
I2C
I2C