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Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram Supply and Deflection
SUPPLY AND DEFLECTION
SUPPLY
J
FRONT INTERFACE
1231
1211
0212
1
1
2
2
MAINS
SWITCH
(not USA)
A1
POWER SUPPLY
1504
2
Degaussing
3507
Coil
1
t
5500 :
1505
1506
6500
5502
1500
AC
T4E
DC
MAINS
SWITCH
(not USA)
I513
3513
7511
TEA1506T
14
DRAIN
3514
11
G
DRIVER
I511
I519
3532
2
9
SENSE
Vcc
2511
CONTROL
IC
3517
6
7
CTRL
DEMAG
6511
3518
STANDBY
SUPPLY
6512
7531
3519
TEA1623
I533
3
14
Vcc
DRAIN
6533
CONTROL
2534
3530
IC
6
12
7532
REG
SOURCE
3538
I531
11
AUX
6532
3534
3531
F508
268V / div DC
F552
130V / div DC
F511
15V5 / div DC
F561
15V9 / div DC
F531
2V7 / div DC
F564
9V4 / div DC
F537
0V (N.A.)
F573
0V (N.A.)
I513
I516
I519
100V / div DC
100V / div DC
2V / div DC
5µs / div
5µs / div
5µs / div
L04A AB
7541
1503
3
4
ENERGIZING
V_DG
CIRCUIT
2
1
(optional)
F508
2505
5512
F552
6551
5551
5552
9
17
Vbatt
MAIN
SUPPLY
8
18
F563
5562 6563
1543
4
13
-Vaudio
I516
7512
F561
D
5
14
+Vaudio
S
6571
3
5561 6562
7514
10
2
+6VA
3516
3571
11
7571
3575
REFERENCE
CIRCUIT
3576
4
1
7513
7573
TCET1103
Stdby_Con
2
STANDBY
3
A4
CIRCUIT
I573
6573
3532
1532
T315mA
POWER-DOWN
5531
7561
A4
2x
6564
6565
6566
4
F564
2564
3565
5
6535
10
+3V
+6VA
6676
9
2535
+6VA
F536
6536
5537
1
8
+6V
2536
2
F537
6537
6
Vaux
S
D
7535
I548
G
7536
B
A4
For IDTV only
I533
100V / div DC
5µs / div
HOT GROUND
COLD GROUND
6.
26
T1
TRIDENT INTERFACE BOARDA
DEFLECTION
7201-2
6930DPTVSVP
TI
A2
TRIDENT INTERFACE
LINE + FRAME DEFLECTION
EHTb
1206
PROC
1201
1403
EHTb
8
1
1
A2
HD
HD
12
2
2
H_DRIVE
H_DRIVE
2
3
3
4
4
EW_DRIVE
EW_DRIVE
4
5
5
VDRA
VDRA
6
6
6
+9V
+9V
7
7
VDRB
VDRB
7
8
8
BCL
BCL
10
9
9
EHT_INFO
EHT_INFO
9
10
10
V_GUARD
V_GUARD
11
11
11
7208
L4978
5203
5
4
6206
SUPPLY
8
FB
7207
1205
L78L05ACZ
7
TO
+5V
6
1202
1205
1
T5
7201
6930DPTVSVP
TO
2
+8V
1202
5
A10
3
4
T5
DISPLAY & PROCESSING
(SYNC PART)
7218
TDA9332H
35 36 37 38
43
Y_OUT
R_OUT
28
RGB
R
40
INSERTION
Y/U/V
OUTPUT
G_OUT
SEE ALSO
U_OUT
RGB
AMPL.
G
41
27
BLOCK DIAGRAM
MATRIX
VIDEO
CATHODE
CALIBR.
B_OUT
B
42
V_OUT
26
44
DAC
BC
&
Y U V
DPTV_R
HOP
27
30
DDP
E/W
3
DPTV_G
28
31
DRIVE
RGB
EHT_INFO
ERR
YUV
4
DPTV_B
22
29
32
MATRIX
2
V_SYNC
23
35
RAMP
FRAME
1
GEN
H_SYNC
8
34
24
STARISTOP
PH1-1
PH1-2
H-DRIVE
SDA
11
SCL 10
20
21
9
13
14
29
22
5
1301
12MHz
3451
5410
Vbatt
LINE
5445
EHT
F414
3
7405
5402
BU4508DX
1
7404
F418
FOCUS VG2
1404
LINE
1
OUTPUT
10
CIRCUIT
2
+
E/W
HOR.
CORR.
DEFL.
COIL
E/W
A2
7406
6408
A2
5403
6
3497
3439
5
HD
1455
7
6456
8
1456
9
HD
FRAME
F460
VDRA
+9V
6464
3462
7451
3474
6442
F461
7455
7456
7454
VDRB
F458
3466
1491
7453
1
7452
2
VER.
DEFL.
3463
COIL
F459
-12V
3461
3471
1206
ABL
10
9
EHT_INFO
SEE ALSO
BLOCK DIAGRAM
VIDEO
EW_DRIVE
4
VD+
6
7
VD-
H_DRIVE
2
HD
12
FLASH
8
11
V_GUARD
3452
7481 : 7483
TO
POWER-DOWN
CRT
A1
B1
A2
EHTb
EHTb
+
EHTinfo
+
3442
EHTinfo
BCL
PROC.
A2
3481
6481
BCL
A2
F452
1454
6452
-12V
F453
Vbatt
6483 6484
6453
3458
VIDEO/SUPPLY
FILAMENT
1452
+9V
5409
6459
2456
6454
6460
VD
1401
EHTb
A4
5
4
V_GUARD
FILAMENT
TO 1351
3
B1
VIDEO/SUPPLY
2
CRT
1
Vbatt
3401
VT_SUPPLY
A3
F401
E_14770_002.eps
260804
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