Block Diagram - JVC AV-2586ME Service Manual

BLOCK DIAGRAMS

BLOCK DIAGRAM

SCL
SDA
TU001
TUNER
IF
J801
S_V_DET
Y1
S-VIDEO
C1
VIDEO-1
CVBS1
V
S-VIDEO
INPUT
L1
L
R1
R
J802
V2/Y
Y
PB
PB
VIDEO-2
PR
COMPONENT
PR
VIDEO
J803
L2
INPUT L
R2
R
J804
V-OUT
VIDEO
L-OUT
OUTPUT
L
R-OUT
R
MAIN PWB
(FRONT LED)
J806
V3
VIDEO
VIDEO-3
J807
L3
INPUT
AUDIO-L
(FRONT) J808
REMOCON
R3
AUDIO-R RECEIVER
VOL+ VOL- CH+
S901
F901
AC IN
POWER SW
MAIN MICRO COMPUTER/TELETEXT DECODE/IF . VIDEO . RGB . SYNC . DEF. PROCESS
IC701
108,109
SCL1, SDA1
I 2 C
IC702 127,128 SCL0, SDA0
MAIN MEMORY
BUS
98,99 PW_LED
I/O
97
REMOTE
PORT
119 KEY_IN
122
S_V_DET
29, 30 SIF IN
SF101
SIF DETECT
SAW FILTER
SF102 24, 25 VIF IN
VIF DETECT/AGC/AFT
SAW FILTER
SOUND TRAP
79 G3/Y
B3/PB
80
78 R3/PR
55
V2/Y
VIDEO
SELECT
58 Y1/CVBS
59
C1
51
V3
49 L1
50
R1
56 L2
57
R2
34 L3
35
R3
AUDIO
SELECT
48 V_OUT
36 L_OUT
R_OUT
37
POWER
LED
CH- MENU
MICRO
TELETEXT DECODER
COMPUTER
DIGITAL SIGNAL PROCESS
R G B
PEAKING SCAN
VELOCITY MOD.
U/V DELAY
SKIN TONE
U/V TINT
SATURATION
B-Y R-Y R G B
VIDEO
C COLOUR
BASE-BAND
IDENT. RGB MATRIX
DEMOD
DELAY LINE
&
GAMMA
Y
V. DRIVE
SYNC
SEP.
COMB FILTER
Y DELAY ADJ.
H. DRIVE
CVBSO/PIP(PIP_OUT)
AUDIO
SELECT
A_L 60
AUDIO
CONTROL
A_R 61
IC971
3.3V REG
IC972
3.3V REG
D901
RECT
T921
IC975
SW
5V REG
TRANSF.
IC973
12V REG
PC901 IC951
IC921
POWER VOLTAGE ERROR
REG FEEDBACK AMP
(No.YA444)2-3 2-4(No.YA444)
MAIN PWB
85
ROUT
GOUT 86
BOUT 87
OSD/TEXT
INSERT
[AV-2586ME, AV-25MX76/G]
PIP_SEL 75
IC301
PIP CONTROL
36, 37
I 2 C
PIP_RIN 70
9 R
PIP_GIN 8 G D-A RGB
72
MATRIX
CONVERT
PIP_BIN 7 B
71
OVER
SAMPLE
6 SEL
DRAM
41
VDRA+, VDRB- 22, 23 VSP
SYNC
42
HSP
PROC. H/V
SCALER
67
HOUT
COLOUR
DEC.
64 20 CVBS2
A-D
CONVERT
BASS PWB
3 14 9 13
IC601
IC671
BASS AMP AUDIO AMP
2 13 3 23
3.3V
IC401
1, 7 5
Q983 V. OUT
Q984
1.8V
1.8V REG
Q522
Q981
H. OUT
Q982
1.8V
1.8V REG
(V1.8A)
3.3V_STB
5V
8V
FOCUS
12V
32V
T522
B1
SCREEN
L951
FBT
EHV
R
G
IC351
V01
B RGB OUT
MAIN PWB
(CRT SOCKET)
J809
HEADPHONE
SPEAKER L
L_AOUT
R_AOUT
SPEAKER R
V
DY01
DEF YOKE
H