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6
Block diagram
A4
C1 5.0V DC
I3
1.6V DC
I3
4.0V DC
I4
5.0V DC
0.5V / div AC
I5 0.5 - 30V DC
0.1ms / div
A5
C2
I7
A
0.5V / div AC
1V / div DC
50mV / div AC
0.2ms / div
0.1ms / div
500ms / div
A6
C3
L1
A
A
5V / div DC
1V / div DC
100V / div DC
10ms / div
0.1ms / div
20µs / div
A7
C4
L2
A
50mV / div AC
1V/ div DC
2V / div DC
0.2ms / div
5ms / div
20µs / div
A8
C5 3V tt 12 MHz
L3
C6 5V tt 12 MHz
50mV / div AC
200mV / div DC
0.2ms / div
10µs / div
A9
F1
L6
50mV / div AC
0.5mV / div DC
5V / div DC
0.1ms / div
5ms / div
5ms / div
A18
1.2V DC
F2
L8
5.0V DC
A18
0V DC
L9 -11.7V DC
L10 194V DC
0.5mV / div DC
5ms / div
A19
F3
P1
270V DC
P1
270V DC
50mV / div AC
10V / div DC
0.2ms / div
5ms / div
A20 14.8V DC
F4
N1
4.1V DC
N2
4.2V DC
N3
0.2ms AC
10V / div DC
5ms / div
A21
I1
P2
50mV / div AC
500mV / div AC
5V / div DC
0.1ms / div
5ms / div
10µs / div
L7.3A
P2
P14
8V1 DC
V15
P14
0V6 DC
P15
5V DC
5V / div DC
P15
5V DC
500mV / div AC
5ms / div
10µs / div
P3
S1
V15a
0.2V / div DC
2V / div DC
500mV / div AC
5µs / div
20µs / div
10µs / div
P3
V1
V15b
0.1V / div DC
500mV / div DC
500mV / div AC
5µs / div
10µs / div
10µs / div
P4
V2
V15c
2V / div DC
1V / div DC
500mV / div AC
5µs / div
10µs / div
10µs / div
P4
V3
V16a
2V / div DC
500mV / div DC
20V / div DC
5µs / div
10µs / div
10µs / div
P5
13V DC
V4
V16b
P5
11.5V DC
500mV / div DC
20V / div DC
10µs / div
10µs / div
P6
V11
V16c
1V / div DC
200mV / div AC
20V / div DC
5µs / div
10µs / div
10µs / div
P6
V12
1V / div DC
200mV / div AC
10µs / div
10µs / div
P9
2V DC
V13
P10
120V DC
P10
120V DC
500mV / div AC
10µs / div
P11
14V DC
V14
P11
14V DC
P13
10V8 DC
500mV / div AC
P13
10V2 DC
CL 86532018_010.AI
10µs / div
020498
14
MAINS SUPPLY
A1
P1
!
!
!
6502/05
5500
SK 1
1500
2508
AC
220V˜
T 5 AH
DC
7518
STH8NA60F
7520
MC44603AP
P4
7520
!
3
O
SC
B
UFFER
1
3525
P8
7
8
3528
6540
2
4
14
P9
2540
3577
A 2
LINE DRIVE
+140V
+140V
+8V
VBATT
VBATT
!
3430
7225 - D
7460
TDA8374C/
L 3
BU1508DX
N337
7461
HOR
G
40
DRIVE
16kHz
E/W
45
DRIVE
EW CONNECTION
+11V LOT
3479
5470
3470
3471
2471
7470
6470
PROTECTION
E/W
EW DRIVE
L 4
(FROM A3 - 43)
+8V
*
*
CRT DISCHARGE CIRCUIT
!
3548
6542
6543
3543
CRT
5545
2541
DISCHARGE
5574
10
5
7542
(A4 - 38)
3544
4
2542
3
6590
2
P11
+10V / 14V
12
P10
P3
6570
2571
6550
140V VBATT
5573
16
2551
5551
3518
+140V VBATT
18
P13
6560
+13V
14
9
P15
2561
+5V
13
7541
3585
8
TDA8139
1
0V6 STB
9
2563
+8V
2
5
8
3
1
3575
4
P14
2
9V
2562
4
3574
RESET
(A5 - 19)
P12
1
3
STANDBY
(A5 - 26)
2
V BATT
ADJUST
140V
5445
!
EHT
3
FOCUS
G2
L 1
EHT INFO
10
1
+11V LOT
9
6486
2486
L 7
8
+5V LOT
6488
2484
L 8
7
(A2-2)
HEATER
5480
6463
3466
X-RAY
6464
5457
2469
PROTECTION
6466
6467
3467
L 9
2457
6490
6
-11V LOT
2489
6465
6449
HFB( A5 - 21)
3448
3449
6450
+200 TO
5463
CRT PANEL
5
6485
3485
L 10
+48V LOT
11
6487
5487
3488
L 11
29" ONLY
12
+11V LOT
6481
6480
PROTECTION
(A5 - 12)
LINE DRIVE
A2
Vbatt
SYNC-FRAME
A3
& VERT. DRIVE
+8V
VIDEO
A4
PROCESSING
5201
+8V
+8VB
5203
+8V
+8VA
CRT DISCHARGING
CONTROL
A5
+5VD
+5V
RESET
STAND-BY
Vbatt
SOUND
A6
PROCESSING
+8V
SOUND
A7
AMPLIFIER
+13V
5300
+8V
+8VD
+14V
NICAM PANEL
C
+8V
5203
+8VA
5205
+5VA
5204
+5VB
8.6532010_008.eps
090398
CRT PANEL
B
+200V
ANODE CRT
FOCUS
VG2
HEATER
VIDEO
A4
PROCESSING
5003
+VB
+5V_LOT
CONTROL
A5
+5V_LOT
HFB
PROT.
+11V_LOT
LINE DRIVE
A2
+11V_LOT
SYNC-FRAME
A3
& VERT. DRIVE
+ 48V (29")
-11V_LOT
+11V_LOT
X-RAY PROT.
BTSC
A8
DECODING
+11V_LOT
8.6532010_007.eps
090398
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