Table of Contents
Advertisement
8.7.
INPUT/ OUTPUT SECTION IN MAIN SCHEMATIC DIAGRAM
R
:TO POWER SUPPLY/RF SECTION
S
:TO SYSTEM CONTROL & SERVO SECTION
V
:TO LUMINANCE & CHROMINANCE/AUDIO SECTION
A
:TO Hi-Fi AUDIO SECTION
H
T :TO TIMER SECTION
R
PS 12V
G
A
AV2 A IN (L)
A
AV2 A IN (R)
A
AV2 A OUT (L)
A
AV2 A OUT (R)
S
AV1 PB
H
A
AV1 A IN (L)
A
AV1 A IN (R)
A
AV1 A OUT (L)
A
AV1 A OUT (R)
R
RFC VIDEO OUT
F
R
TUNER VIDEO
S
AV2 PB
H
S
OSD PLUSE
R
N.SW 5V
T
POWER SW
T
AN2
E
S
IR
T
AN0
PP3901
AN0
1
IR
2
N.SW 5V
3
AV3 A IN (R)
4
GND (AV)
5
AN2
6
D
POWER SW
7
GND (AV)
8
AV3 VIDEO IN
9
GND (FIP)
10
11
AV3 A IN (L)
AV3 C IN
12
GND (AV)
13
AV3 Y IN
14
AV3 S-VHS IN
L
15
C
S
AV3 S-VHS IN
L
A
AV3 A IN (L)
A
AV3 A IN (R)
R
PS 5V
B
S
VIDEO OUT
V
C OUT
V
Y OUT
V
C IN
V
VIDEO/Y IN
V
VHS
H
V
S-VHS
H
S
PROG
H
S
IO IIC DATA
S
IO IIC CLOCK
A
R
GND
R
GND (AV)
R
GND (FIP)
NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE IN THE BRACKETS( )ON THIS DIAGRAM IS RECORD MODE
WITH PAL COLOUR SIGNAL.(SP MODE)
1
VIDEO MAIN SIGNAL PATH IN REC MODE
A12
Q4906
2SD1328
(RGB ON:ON)
L4902
33u
C4958
0.1
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
B1
B2
B3
IC4902
LA73023V
TW3901
L4903
33u
C4957
6V330
B4
B5
B6
B7
B8
B9
B10
B11
2
3
A13
0.5
R4920
R4926
R4914
4700
22K
18K
0
0
0.5
QR4902
QR4901
4.4
2.7
UN2212
UN2215
(RGB OFF
:ON)
(SWITCHING)
H
0
R4915
18K
R4917
22K
R4918
15K
C4920
0.1
C4918
C4910
0.01
0.1
0
4.8
2.0
2.7
1.9
44
43
42
41
40
C MUTE
C MUTE
CPN C
FUNC
V IN3
CTL1
CTL2
IN1
SW P1
INTER-
CLAMP
FACE
IIC BUS
INTERFACE
POWER
CPN C
Y DC
SAVE
IN3
CTL
DATA
CLOCK
CTL
1
2
3
4
5
2.8
2.9
2.0
R4923
R4924
LB4911
680
680
0
C4927
0.01
B12
B13
THE MEASUREMENT MODE OF THE DC VOLTAGE OUT OF THE BRACKETS ON THIS DIAGRAM IS PLAYBACK MOD
WITH PAL COLOUR SIGNAL.(SP MODE)
4
VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE
4.8
Q4902
2SB709A
(INV.)
12.4
2.4
Q4905
2SD601A
(AV2 PB:ON)
(-0.2)
R4903
120
D4903
R4919
MA165
470K
R4910
75
R4916
470
A15
A16
A17
A18
C4919
R4922
C4917
0.1
4700
0.1
0
1.9
0.1
2.3
4.8
39
38
37
36
35
34
FUNC
CPN Y
EXT
V IN2
VCC
SW P2
IN1
CTL5
CLAMP
CLAMP
VIDEO OUTPUT
SELECT SW
(AV2)
MUTE
MUTE
CPN Y
INPUT
SELECT
SW
CLAMP
CLAMP
CPN Y
Y DC
CPN C
CPN Y
ADR
IN3
ADJ
IN1
CTL
IN1
GND
6
7
8
9
10
11
2.8
2.0
2.8
C4928
C4929
C4930
0.1
0.01
0.1
R4935
0
B4
B5
B6
5
R4901
C4903
0.1
330
4.2
Q4901
1.9
2SD601A
(AMP)
1.3
IC4901
C1AB0000
R4902
120
A19
C4924
0.1
C4921
6V330
2.2
2.2
2.3
33
32
31
V OUT
V OUT
GND
CPN Y
AV2
AV1
OUT
VIDEO OUTPUT
SELECT SW
(AV1)
CPN Y OUTPUT
SELECT SW &
SUPERIMPOSE
MUTE
MUTE
MUTE
CPN C
INPUT
VIDEO INPUT
SELECT
SELECT SW
SW
CPN C
CPN Y
CPS
OUT
OUT
OUT
12
13
14
1.3
2.0
(1.7)
B7
B8
6
53
Advertisement
Table of Contents
