JVC AV-28H5BU Service Manual page 42

BLOCK DIAGRAM
SIF
TU001
TUNER V TV
LTV/RTV
VTV OUT
R1/G1/B1
EXT-1
V1
L1/R1
R2/G2/B2
V2
Y2/C2
EXT-2 L2/R2
L2/R2 OUT
V2 OUT
SDA1 SCL1
V3
EXT-3 Y3/C3
L3/R3
AV JACK PWB
S
Y4/C4
V4
EXT-4
L4
R4
KEY
SIDE
CONTROL
PWB
REMOCON
IC8851
REMOTE-CONTROL
RECEIVER
AC IN
F8901
POWER SW
IC101
MULTI SOUND PROCESSOR
DEMODULATOR
AUDIO
/NICAM DECODER
CONTROL
L/R
A-D
CONVERTER
L/R
IC201
AV SELECT
VTV
V1
V1
V2
V3
V4
V2
Y2/C2
Y3/C3
Y/C
Y4/C4
LTV/RTV
L1/R1
L1/R1
L2/R2
L3/R3
L4/R4
L2/R2
IC701
MEMORY
FRONT
CONTROL
PWB
LF8901
DACM L/DACM R
D-A
CONVERTER
IC601
D-A LTV/RTV
AUDIO OUT
CONVERTER
ROTATION
IC201 IC301
VIDEO PROCESSOR & CODEC
R1/G1/B1
SYNC
YUV OUTPUT YUV INPUT
R2/G2/B2
H SCALING/PEAKING/CTI
R/G/B PICTURE FRAME
NOISE GENERATOR/
REDUCTION
NON-LINEAR
A-D CONVERTER/
COLOURSPACE
COLOUR DECODER
ENHANCER
MIXER
M CV/Y/C
A-D CONVERTER/
COLOUR DECODER
H/V OUT
SYNC
PWM
R/G/B
CVBS
IC001
SDA1 SCL1
SDA0 SCL0
MICRO COMPUTER
& TELETEXT DECODER
KEY
REMOCON
PC901
IC901 IC951
VOLTAGE
POWER ERROR
FEEDBACK
REG. AMP
T901
B1
SW
TRANS.
D901
(No.YA263)2-5 2-6(No.YA263)
MAIN PWB
L/R
IC551 IC501 IC501
ROTATION DRIVE PARABOLA DRIVE PARABOLA DRIVE
DEF & RGB PROCESSOR
VIDEO D-A
CONVERTER
B
MATRIX/
R
G
RGB
CONTROL
VM
SCAN VM
SYNC PROCESSING/
H & V DRIVE
EW
VD
HD
IC003
SRAM
100Hz PWB
VD IC401
V.OUT
IC461
SCREEN
PARABOLA
AMP
EHV
HD
FOCUS
T551
Q461
Q521
PARABPLA
H.OUT
OUT
HVT
POWER & DEF PWB
SPEAKER L
SPEAKER R
HEAD
PHONE
L
SIDE
AUDIO
CONTROL
OUT
R
PWB
ROTATION
COIL
IC3203
B OUT
IC3202
CRT
R OUT
IC3201
G OUT
Q3104
Q3105
Q3108
Q3109
VM AMP VM COIL
CRT SOCKET
PWB
DEF YOKE
V
H