Block Diagram - JVC LT-26D50BJ Service Manual

BLOCK DIAGRAM

RECEIVER PWB
FM1/AM
FM2
IC3001
SIF
A-D
DEMOD.
U/V FRONTEND
NICAM A
NICAM B
TV_V1
DIGITAL TUNER UNIT
DIGITAL
Y/CV/C/U/V
TUNER
UNIT
L/R
IC502
AMP
TV TV
V1/Y1 V1
J2001 C1 V2
EXT-1 LV1/RV1 V3
R1
G1
Y1
B1
Y2
Y3
Y4
R2
V4
G2
B2
V2/Y2
VOUT 2 VOUT 3
J2002 C2
AMP IC503
EXT-2 LV2/RV2
C1
C2
C3
C3 C4
J2003
EXT-3
Y3
TV_L1/TV_R1
S
LV1/RV1
V3
LV2/RV2
V
LV3/RV3
LV3/RV3 LV4/RV4
L/R
LV4/RV4 LV5/RV5
J2005
EXT 4
AUDIO IN
L/R
LOUT 3 LOUT 3
/ROUT 3 /ROUT 3
J2005
AUDIO
OUT
J2004 CPY3
Y
EXT-4
CPB3
Cb
CPR3
Cr
J2007
PC RBG
PC IN
HS,VS
IC3501
MULTI SOUND PROCESS
IC3503
MATRIX D-A
FM/AM
PRESCALE
FM
MATRIX SCART
AUDIO PRESCALE
NICAM SCART1_L
SCART1_R
PRESCALE SELECT
A-D
TV_L1
TV_R1
MATRIX
D-A
CONNECTOR PWB
RE1
GR1
RE1,GR1,BU1 BU1
RE2,GR2,BU2 RE2
GR2
IC501
BU2
VIDEO/AUDIO SELECT
VOUT 1
SUB_C
YOUT 1
SUB_VY
SUB_VY
MAIN_VY
CVBS_out
COUT 1 SUB_C
IC802
3 LINE
COUT 2 MAIN _C
COMB
FILTER
LOUT 1 L_SWSUB
/ROUT 1 R_SWSUB
LOUT 2
L_SWMAIN
/ROUT 2 R_SWMAIN
(No.YA205)2-5
FRONT CONTROL PWB
HEADPHONE
IC6001
J7001
LIPL LIPL
L/R
VOLUME
LIPR LIPR
CONTROL
COMP_L
COMP_R
ANALOG SIGNAL PWB
IC801
COLOUR DEMOD./SYNC SEP./RGB SW
3
DE-MATRIX
S_Y
S_R_Y
3 S_B_Y
DE-MATRIX
3
Y Cb Cr
C
COLOUR
DEMOD.
Y
S_HD
H.DRIVE
SYNC
SEP. S_VD
V.DRIVE
IC201
Y/C
SYNC SEP/SW/DETECT
S_HD
PC_HS YUVSWH2
S_VD
PC_VS
YUVSWV2
SYNC
SEP.
DETECT
YUVSWY1
IC301
COMPONENT VIDEO
/AUDIO SELECT
YUVSWY1
YUVSWPB1
YUVSWPR1
YUVSWY2
YUVSWPB2
PC_R
YUVSWPR2
PC_G
CPY1
PC_B
CPB1
CPR1
2-6(No.YA205)
IC6521
BBE/SURROUND/AOUDIO CONTROL
SURROUND
L/R
AGC VOL1 BBE TONE VOL2
PROCESS
DIGITAL SIGNAL PWB
IC1001
A-D CONVERT/3D YC SEPARAT/COLOUR DEMOD.
SYNC
IC1502
MAIN SCREEN
SEP.
INPUT SW
MAIN_VYO
A-D
DEC_Y
(10bit)
YUVSWY1
YC SEP.
CONVERT
(3D/3L)
A-D
MAIN_C (8bit)
MULTIPLEX
CONVERT
YUVSWPB1
YUVSWPR1
8
8
8
IC3001
FORMAT CONVERT/
DYNAMIC GAMMA/ COLOUR MANAGEMENT/
MULTI-SCREEN/ SUPER DIGIPURE
OSD COMPOSITION/RGB PROCESS
3DHS
IPHS
3DVS
IPVS
YUVSWH2
GAMMA
YUVSWV2
CORRECTION
IPY
FORMAT CONVERT
3DY
IP PB
/MULTI-SCREEN 10
IP PR
3DRB
/SUPER DigiPure
A-D
YUVSWY2
YUVSWPB2
YUVSWPR2
IC4003
DIST
DQ ADRS
PROGRAM
ROM
IC3501
IC3502
IC4004
MEMORY DIST
SETTING
MEMORY
SCL
IC7002
IC7001
SDA
CHASSIS
CHASSIS
CPU
CPU
MEMORY
ANALOG
SIGNAL
PWB
KEY1
KEY2
MECH_SW
POWER_LED
REMOCON
CONNECTOR
PWB
ANALOG SIGNAL PWB
SPEAKER(L)
IC6621
L
COMPARAT IC6661
IC6551 L/R
IC6552 L/R DIGITAL
AMP
AUDIO
HPF
R
OUT
SPEAKER(R)
3DHS 8
3DVS
Y ENHANCER Y
/ CONTRAST ITU-R656 3DY 8
8bit
R-Y
COLOUR FORMAT
C
3DRB 8
B-Y
DEMOD.
IC4001
COLOUR
MANAGEMENT
RGB
PROCESS LVR
0+/-
LVG
1+/-
OSD
LVB
2+/-
MIX IC6502
8
3+/-
LVDS FORMAT
CONVERSION
CPU
OSDR
5
OSDG
OSDB
MI_RX
MI_TX SCL
IC7501 IC7602
WAKE
SDA
MAIN MAIN CPU
CPU MEMORY
LCD
(PANEL)
FRONT FRONT
CONTROL SENSOR
PWB PWB
S7701~S7706
POWER
POWER
IC8752
REMOTE
RECEIVER