24
23
SCHEMATIC DIAGRAM-3 (SYSTEM CONTROL/SERVO/OSD SECTION)
1
2
4
3
5 6 7
8
9
10
IC502
KA3082
LOADING
MOTOR DRIVE
To
LOADING
MOTOR
To/From
AUDIO/VIDEO
SECTION
To/From
LOWER
DRUM
To/From
CAPSTAN
MOTOR
From
MODE SW
R
0
5.3
5.1
R
0
5.3
5.1
R
0.2
0.2
5.0
0
0
To
AUDIO/VIDEO
SECTION
GP1S566
GP1S566
R
IC504
KA7531Z
RESET
(2/3)
(2/3)
(3/3)
(3/3)
(6/13)
(1/3)
(2/3)
(1/3)
(3/3)
(2/3)
(8/13)
(11/13)
(2/3)
(3/3)
(8/13)
(7/13)
(2/5)
(1/3)
(1/5)
(13/13)
(4/5)
(5/5)
(12/13)
(3/5)
(9/13)
R
0
5.4
4.6
4.9
5.6
5.3
5.3
5.4
0.1
0
0.7
3.6
:WAVE FORMS No.
ONE VOLTAGE:PB OR REC MODE
TWO VOLTAGES:PB AND (REC) MODE
FLD: Fluorescence Drive
*
HD3977RC36F
IC501
SYSCON/SERVO
PROCESSOR
KA7542Z
POWER FAIL
DET.
X503
14.3178MHz
DISPLAY
DRIVE
RC5F1
TSOP1238SP1
REMOTE
SENSOR
(2/13)
(4/13)
(3/3)
14(3/3)
13(3/3)
(2/3)
(2/3)
(3/13)
K.RTN1
K.RTN0
From
FRONT-1 C.B
PKM02
To/From
FRONT-2 C.B
PMK01
IIC DATA
IIC CLOCK
(3/3)
(1/3)
(1/13)
(3/3)
IIC DATA
IIC CLOCK
SQPB IN
To/From
TUNER/IF
SECTION
To/From
AUDIO/
VIDEO
SECTION
To/From
POWER
SECTION
DISPLAY
MAIN (SYSCON/SERVO SECTION) C.B
(
(
VIDEO
30
6
6
5.1V(D)
C-SYNC “H”
0
0.9
2.9
1.8
1.8
12.2 12.2 0.9
0.4
(0.5)
0.4
(0.5)
0.4
0
0
0
0
4.5
4.5
0
5.1
5.0
0
5.2
0
5.0(0)
0
5.1
2.5
2.5
2.7
2.4
0
2.5
2.9
(2.3)
2.2
0
0.1
2.2
2.2
2.2
2.2
4.4
2.5
5.2
5.3
2.6
1.3
2.6
0
2.0
0
0
1.2
0
0
5.1
1.5
3.5
5.1
0.2(2.3)
2.3(4.2)
1.2(0)
2.4
2.4
0(0.4)
5.0
0
5.1
0
0
4.9(4.5)
5(0)
0
0
0
5.0
0.2
0
0
1.5
0.8
0
2.5
2.5
5.4
0
5.4
5.0
3.1
0
2.7
1.2
5.1
0
0
0
0
4.6
0
4.3
4.8
4.8
0
0
4.8
0(4.8)
4.8
4.8(0)
0
0
0
