Specifications

26L03.2U AA 6.
Block Diagrams, Testpoint Overviews, and Waveforms
I
2
C and Supply Voltage Overview
POWER SUPPLY
1512
43
2
1
2
7
10
11
3
6
2
5
6
1
1511
90VAC-130VAC
low range
3543
5562
3544
A1
Degaussing
Coil
1515
5520
7580
7520
TEA1506
DRAIN
DRIVER
SENSE
DEMAG
CONTROL
IC
CTRL
Vcc
ENERGIZING
CIRCUIT
(optional)
6501
6503
6500
6502
5502
8
1
2
4
3
1500
T4E
2504
6562
6561
-12V -12V
5563
5560
6560
Vaudio
3549
A4
A2
Std_Con
HOT GROUND COLD GROUND
7540, 6540
REFERENCE
CIRCUIT
7541
+3V3A
+3V3A
STANDBY
CIRCUIT
7515
TCET1103
3527
3525
3523
3526
7521
14
11
9
3522
7
D
S
G
6520
3528
7523
7451
EHT
E_14560_020.eps
240304
FRAME
MAINSUPPLYMAINSUPPLY
DEFLECTION
A2
A1
-12V
7421
BUT11APX
5421
3424
0221
1
4
HOR.
DEFL.
COIL
1402
1
2
VERT.
DEFL.
COIL
5441
1
7
2
FOCUS VG2
EHT
10
EHT
A4
EHT 0
A4
A4
A3
A6
BEAM-
LIMIT
3447
9
6446
8
5
4
6463
3445
3446
3475
VT SUPPLY
VT SUPPLY
6447
+160VD
+160VD
-12V
-12V
FILAMENT
FILAMENT
FILAMENT
3448
3313
3459
6452
6001
-/C33
6451
6444
6448
3443
3444
FRAME OUT
6422 2423
2406
5401 3402
3403
7423
7422
3425
Vaudio
FILAMENT
3463
3465
3464
7463
7461
7465
7462
-12V
3470
7466
7464
3474
3451
2455
FOCUS
EHT
VG2
1400
2
3
3423
6423
2428
3410
2460
6462
6461
2465
3503
3506
t
3581
6522
2521
RESERVED
H-DRIVE
V-DRIVE-
V-DRIVE+
TUNER IF
A3
+ 5 V
+ 5 V
+ 8V
1300
7
8
VT supply
VT supply
VT Supply-A
CRT
B1
EHT
FOCUS
FILAMENT
170 V0
To VIDEO
OUTPUTS
VG2
AUDIO PROCESSING
A5
5861
41 - 7861
+ 5V
AUDIO AMPLIFIER
A6
1 - 7901
or
1 - 7902
+ 5V
FILAMENT
FILAMENT
+ 3V3A
AUDIO FRONT I/O
A7
+3V3A
Vaudio
1x
1x
3x
2x
VIDEO PROCESSING
B1
A4
Vaudio
FILA-
MENT
4379
3493
7493
3494
3
A1
A2
In
1
3495
5482
4491
+3V3
+5V
+8V
1x
+8VD
+3V3A
6491
7494
6492
3496
3497
7496
7491
3492
3491
VTSupply-A
+8V
2x
1x
1x
Vaudio
VIDEO PROCESSING
A4
TUNER IF
A3
3605
7641
M24C04
EEPROM
(NVM)
3604
3643 3642
65
3
2
11
WP
7
ERR
9
7200-B
SET
PROCESSOR
PART OF
VIDEO-
PROCESSOR
TDA93XX
ERR
6
SDA
SCL
SCL
SDA
3602
+3.3V
3644
+3.3V
3601
+3.3V
1000
TUNER
UV1336
3003 3004
45
ERR
10
1
2
1003
3
AUDIO BTSC STEREO
DECODER
(economic)
A5
7861
TDA9853H
AUDIO
PROC.
3865
3866
4038
ERR
4
SCL
SDA
FOR
COMPAIR
ONLY
I2C BUS INTERCONNECTION DIAGRAM
ERROR CODE LIST
Error Device Error description Check item Diagram
0 Not applicable No Error - -
1 Not applicable X-Ray Protection (USA) 7421, 2423, 6421, 6422 A2
2 Not applicable Horizontal Protection 7421, 7422, 7423 A2
3 Not applicable Vertical Protection
7461, 7462, 7463, 7464, 7465,
7466
A2
4 TDA9853H
Tone control & Audio processor I2C
identification error
7861 (Stereo/Sap) A5
5 TDA93XX POR 3.3V / 8V Protection 7200, 7541, 7491, 7493, 7496 A4, A1
6 I2C bus General I2C bus error 7200, 3604, 3605 A4
7 Not applicable - - -
8 Not applicable E/W Protection (Large Screen) - -
9 M24C16 NVM I2C identification error 7641, 3641, 3642, 3643 A4
10 Tuner Tuner I2C identification error 1000, 3003, 3004 A3
11 Not applicable Black current loop protection
3313, 7307, 7308, 7309, 7310,
7311, 7312, 7313, 7314, 7315,
7316, 7317, 7318, CRT
B1
12 Not applicable MAP I2C identification error (USA) - -
13 Not applicable VC I2C identification error (Eu) - -
14 Not applicable DVD I2C identification error - -
1x
2x