Table of Contents
Advertisement
AV
(EURO-TV) connector
(21-pin)
-
20
16 16
14 12
10
B
6
4
2
°
Y
iddd
!
I
21 19 17
15 13
11
9
7
5
3
1
Pin
No.
Signal
Description
i
Audio
output
B
(right)
Standard
level.
0.5
Vrnrts
Output impedance:
Less than
1
k
ohm*
2
Audio
input
B
(right)
Standard
level:
0 5
Vrms
Input
impedance:
More
than
10
k
ohms*
3
Audio
output
A
(left)
Standard
level:
0.5
Vrms
Output impedance:
Less than
1
k
ohm
*
4
GND
for
audio
GNO
5
GND
for
blue
input
GND
6
Audio
input
A
(left)
Standard
level:
0.5
Vrms
Input
impedance:
More
than
lOkohms*
7
Blue
input
0.7
V
±3dB,
75
ohms
8
Function
select
(AV
control)
High
state (9.5-
12
V):
Peri
mode
Low
state
(0
-
2
V):
TV
mode
Input
impedance:
More
than
10
k
ohms
Input
capacitance:
Less
than 2
nF
Pin
No.
Signal
Description
s
GND
for
green
input
GND
10
NC
11
Green
input
|
(Same
as
Pin
7)
12
NC
13
GND
for
red input
GND
14
GND
for
blanking
input
GND
15
Red
input
(Same
as
Pin
7)
16
Blanking
input
High
state
(1
-
3
V)
Low
stale
(0 -
0.4 V)
Input
impedance:
75
ohms
17
GND
for
video output
GND
18
GND
for
video
input
GND
19
Video output*
*
1
V
±
3
dB, 75
ohms
Sync: 0 3
V
(^3
dB)
20
Video
input
1
V
±3
dB,
75
ohms
Sync:
0.3
V
(±3dB)
21
Common
GND
(plug,
shield)
GND
• at
20Hz
-
20
khz
* *
Outputs
the
video
signal fed
through
the
LINE
A
connector,
when
the
AV
input
mode
is
selected
Design
and
specifications subject
to
change
without
notice.
I
TABLE OF CONTENTS
Section
Title
Page
1.
GENERAL
1
-
1
.
Features
4
1
—
2.
Location and Function
of
Parts
and
Controls
5
2.
DISASSEMBLY
2-1.
Rear Cover and
Top
Cover
Removal
9
2-2.
Terminal Board
Removal
9
2-3.
Bracket
of
Terminal
Board
Removal
10
2-4.
Control
Unit
Removal
10
2-5.
Note on
Wiring the
Troida!
Coil
and
It's
Peripheral
Part
10
2-
6.
Picture
Tube Removal
11
3.
SET UP
ADJUSTMENTS
3-
1.
Beam
Landing
12
3-2.
Convergence
13
3-3.
Focus
14
3-4.
White
Balance
15
4.
SAFETY RELATED
ADJUSTMENTS
16
WARNING
!
!
AN
ISOLATION
TRANSFORMER SHOULD
BE
USED
DURING
ANY
SERVICE TO
AVOID
POSSIBLE
SHOCK
HAZARD, BECAUSE OF
LIVE CHASSIS.
THE
CHASSIS
OF
THIS
RECEIVER
IS
DIRECTLY
CON-
NECTED TO THE AC POWER
LINE.
Section
Title
Page
5.
CIRCUIT
ADJUSTMENTS
5-1.
A
Board
Adjustments
18
5-2.
XA
Board
Adjustment
21
5-
3.
BA
Board
Adjustments
22
6.
DIAGRAMS
6-
1.
Frame Schematic Diagram
25
6-2.
Block
Diagrams
27
6-3.
Printed
Wiring
Boards
36
6-4.
Circuit
Boards Location
41
6-5.
Schematic Diagram
41
6-
6.
Semiconductors
69
7.
EXPLODED VIEWS
7 -
1
.
Chassis
71
7-
2.
Picture
Tube
72
8.
ELECTRICAL
PARTS
LIST
73
SAFETY RELATED
COMPONENT WARNING
!!
COMPONENTS
IDENTIFIED BY
SHADING
AND MARK
ON
THE
SCHEMATIC
DIAGRAMS,
EXPLODED
VIEWS
AND
IN
THE PARTS
LIST
ARE
CRITICAL TO
SAFE OPERATION.
REPLACE THESE
COMPONENTS
WITH
SONY PARTS
WHOSE PART NUMBERS
APPEAR
AS
SHOWN
IN
THIS
MANUAL
OR
IN
SUPPLEMENTS
PUBLISHED
BY
SONY.
CIRCUIT
ADJUSTMENTS
THAT ARE
CRITICAL
TO SAFE OPERATION ARE
IDENTIFIED
IN
THIS
MANUAL.
FOLLOW
THESE PRO
CEDURES
WHENEVER
CRITICAL
COMPONENTS ARE
REPLACED OR IMPROPER OPERATION
IS
SUSPECTED.
-
3
-
Hide quick links:
Advertisement
Table of Contents
