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8.2.
POWER SUPPLY/ RF SECTION IN MAIN SCHEMATIC DIAGRAM
P :TO POWER TRANSFORMER SECTION
S
:TO SYSTEM CONTROL & SERVO SECTION
V :TO LUMINANCE & CHROMINANCE/AUDEIO SECTION
A
:TO Hi-Fi AUDIO SECTION
I
:TO INPUT/OUTPUT SECTION
G
T
:TO TIMER SECTION
D :TO DECODER SECTION
P
UNREG -29V
S
FIP
L
T
FIP -29V
S
SLEEP
H
F
P
UNREG 36V
P
UNREG 14V
P
UNREG 6V
P
HEATER DC (+)
E
P
HEATER DC (-)
P
GND
S V
A
GND
I T
D
GND
S V A
T
GND (SYS)
S
T
GND (FIP)
S
GND (CTL)
S
GND (FG)
S
GND (MOTOR)
V
A
GND (A)
V
A
GND (HA)
D
V
GND (V)
V
GND (NA)
I
GND (AV)
T
HEATER (+)
C
S
POWER OFF
S
D
REG 5V
V
VIDEO 5V
S
A
I
PS 12V
S
V
A
I
PS 5V
V
BIAS 5V
S
T
N.SW 5V
B
A
RFC AUDIO OUT
I
RFC VIDEO OUT
S
SYS IIC CLOCK
S
SYS IIC DATA
S
SW2
D
SIF
S
AFC S-CURVE
I
TUNER VIDEO
A
IMPORTANT SAFETY NOTICE:
COMPONENTS IDENTIFIED WITH THE MARK
WHEN REPLACING ANY OF THESE COMPONENTS,USE ONLY THE SAME TYPE.
1
R1024
5600
Q1001
2SD602A
(BUFFER)
-17.0
-17.0
R1006
-16.2
5600
R1005
5600
L
A1
A2
A3
A4
A5
A6
A7
A8
HAVE THE SPECIAL CHARACTERISTICS FOR SAFETY.
2
VIDEO MAIN SIGNAL PATH IN REC MODE
VIDEO MAIN SIGNAL PATH IN PLAYBACK MODE
Q1013
2SD601A
(FIP ON/OFF CONTROL)
-30.7
-30.7
C1026
R1003
R1026
0.1
27K
6800
5.2
C1019
0.1
Q1002
2SC1959Y
(5V REG.)
5.9
5.2
R1008
C1003
C1009
470
0.1
0.1
5.9
C1002
D1002
25V47
MA4056NH
NOTE:THE MEASUREMENT MODE OF THE DC VOLTAGE ON THIS DIAGRAM IS STOP MODE
3
R1027
R1028
3300
3300
5.2
QR1003
0
UN2112
(FIP
:ON)
L
5.2
Q1005
2SC1959Y
(12V REG.)
15.6
12.3
C1008
0.1
13.1
C1004
D1003
25V47
MA4130NL
Q1009
2SC1959Y
(5V REG.)
5.9
5.2
6.0
Q1008
2SC1959Y
(5V REG.)
5.9
5.1
C1018
0.1
6.0
C1016
D1011
16V100
MA4051NM
D1012
MA165
Q1007
2SC1959Y
(5V REG.)
5.9
5.3
5.9
Q1006
2SC1959Y
(5V REG.)
5.9
5.1
R1009
5.9
470
C1011
D1005
25V47
MA4056NH
4
5
AUDIO MAIN SIGN
AUDIO MAIN SIGN
Q1003
2SB710
(POWER SAVE C
37.1
R1001
R1014
33K
4700
36
R
1
C1025
0.1
R1013
R1015
10K
10K
12.3
QR1004
0
UN2111
(POWER ON/OFF
CONTROL)
12.2
R1022
R1025
150
150
0
QR1005
UN2211
(POWER ON:ON)
42
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