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Block Diagrams, Testpoint Overviews, and Waveforms
6. Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram
A14
REAR I/O SCART
7101
V1-OUT
SCART 1
A5
21
20
CVBS1-IN
V-OUT
A5
A5
FBL-1
A5
R-Y-IN
A5
G-Y-IN
A5
STATUS 1
A7
B-U-IN
A5
L1-IN
A10 A5
L1 - OUT
A10
2
R1-IN
1
A10
R1 - OUT
A10
E
E1
C
A12
OR
OR
FRONT I/O
SIDE AV
MONO
STEREO
0253
0219
3
6
CVBS-FRONT-IN
V
V
V
A10
A
0251
A
3
3
L-FRONT-IN
A5
L
L
L
B
A10
1
1
B
R
R-FRONT-IN
C
R
A10
C
A4
A5
TUNER IF
VIDEO IF, SOUND IF
7209, 7210
A2
VT_SUPPLY
FM
6001
PRE-AMPLIFIER
5001
BZX79-C33
7200-A
V
+5V
LOTAUX
1002
1000
6, 7
9
TDA95XX
1003
VT
0265
VIF_1
18
I3
10
1
2
FM-RADIO
ERR
FM
10
TUNER
FM
I4
VIF_2
19
+
11
IF
TV TUNER
TV
22
1004
AGC
SIF1
23
5
4
1
SIF2
24
I1
3001
RF_AGC
A7
SDA
I2
3000
A7
SCL
7001
FM-DEMOD.
7002
DE-EMPH.
FILTER
A7
SEL-IF-LL-M-TRAP
SELECTION
A14
A12
LF FRONT-IN
A1
POWER SUPPLY
0212
1
3504
1
1515
R
P
3
4
R
Degaussing
+t
3
Coil
2
+t
2
1
2
3
1
+t
3503
5500 :
0211
0231
5502
1500
6500
AC
6501
P1
5520
T4E
1
6502
2503
150 - 250V
6503
2
SINGLE RANGE
MAINS
3527
90 - 276V
SWITCH
7521
7520
FULL RANGE
STP7NB60FP
TEA1507
8
3
D
3523
DRAIN
6
G
DRIVE R
S
3525
P2
5
5
SENSE
3
CTRL
3526
3522
4
6
DEMAG
3531
6520
1
VCC
7
N.C.
2521
CONTROL
3519
IC
3
1
P3
2
4
HOT GROUND
COLD GROUND
L01.2E AB
A10
A8
AUDIO/VIDEO
AUDIO AMPLIFIER
SOURCE SWITCHING
7801
MONO SETS ONLY
HEF4052BT
MONO/AM-MONO-SOUND
SEL_MAIN_FRNT_RR
9
A7
A5
SWITCH
BASS-PANORAMA
LOGIC
SC2-CTRL
10
A7
A9
TREBLE-BUZZER-HOSP-APP
L-FRONT-IN
1
A7
A12
7803
L1-IN
5
SC1-LIN
A14
3
A9
L2-IN
2
A14
L1-OUT
A14
SC1-LOUT
4
A9
L-OUT
R-FRONT-IN
12
A12
A14
7804
A10
R1-IN
14
A14
SC1-R IN
13
A9
R2-IN
R1-OUT
NICAM + 2CS (STEREO) DECODER
15
A9
A14
A13
SC1-R-OUT
11
A9
7834
R-OUT
7835
7802
QSS-AM-DEM-OUT
A14
HEF4053BT
47
A10
FMR
SEL_MAIN_FRNT_RR
9
SWITCH
A7
LOGIC
MONO/AM-MONO-SOUND
A11
CVBS-FRONT-IN
3834 2847
5
SY-CVBS-IN
44
A12
A5
4
A5
Y-CVBS-IN
3
SC1-L IN
41
A14
A10
SC1-R IN
42
A10
R-OUT
2
R2-OUT
A10
15
A14
A7
3833
SC1-R-OUT
1
SDA
A9
A7
A6
L-OUT
3832
12
L2-OUT
SCL
A10
A7
14
A14
SC1-1-OUT
13
A9
AUDIO CARRIER
FILTERS
QSS_AM_DEM_OUT
5201
FM RADIO
FMR
3214
+8V
1200
V1-OUT
A14
5.5MHz
49
V10
VIDEO
VIDEO
VIDEO
38
IF
PLL
7201
1201
AMPLIFIER
AGC
DEMOD.
6MHz
+8V
3208
QSS
QSS MIXER
33
SOUND
7206
AM DEMOD.
IF + AGC
3230
SOUND
SOUND
48
AUDIO
AMPL.
MONO/AM_
+ AVL
MONO_SOUND
SWITCH
A8 A9
28
29
L1-IN
A6
3558
SYNCHRONISATION
7580
+3.9V
ENERGIZING
7560
P4
V
+13V
3259
2254
LOTAUX
CIRCUIT
EHT INFO
+3.3V
A2
6562
SANDCASTLE
2567
N.C.
3242
12V
H FLYBK
P5
A2
5562
6564
3564
M_AUX
S1
3570
2564
MAIN AUX
AUDIO SUPPLY GND
10
7561, 7562
7564
ERR
9
7
POWER
A6
POWER DOWN
DOWN
A7
CIRCUIT
P6
7241
5560
6560
5563
5561
13
95V
POWER-DOWN
A1
2561
MAIN SUPPLY
12
6561
V
A2
3247
DEFL
EHT INFO
A2
7540, 6540
3543
EHT o
A2
REFERENCE
CIRCUIT
3544
ERROR CODE LIST
7515
7541, 7542
TCET1103
Error
Description
STANDBY
STDBY_CON
A7
0
No error
CIRCUIT
1
X-Ray / over voltage protection (USA only)
2
High beam (BCI) protection
3
Vertical guard protection
4
I2C error while communicating with the sound processor
5
Power ON reset (POR bit) 3.3V protection / +8V protection
6
General I2C error
7
Power Down (over current) protection
8
EW protection (Large Screen only)
9
I2C error EEPROM error
10
I2C error PLL tuner
11
Black current loop instability protection
6.
13
7941:7943
7901 AN7522N (STEREO)
7902 AN7523N (MONO)
MAIN-OUT-L
6
OR
OR
8
VOLUME MUTE
9
A7
MAINAUX
1
ERR
7
A1
A12
L+
L+
L-
L-
7831
R-
R-
MSP34X5G
R+
R+
A10
MAIN-OUT-L
25
DEMODULATOR
A9
NICAM, 2CS,
E1
MAIN-OUT-R
AM, FM
24
OR
A8
MONO/AM-MONO-SOUND
0246
0254
A5
31
R-
1
1
SC1-L OUT
A10
2X
INPUT
30
SC1-R OUT
A10
R+
2
2
SWITCHING
4
SC2-CTRL
A10
3
3
ERR
8
4
51
L+
4
4
7
1831
L-
5
5
18M432
52
3220
V-OUT
A14
7200-C
TDA95XX
47
V9
3213
2203
40
RGB
I/O
MATRIX
SWITCHING
RGB
Y
INSERT
Y-DELAY
VIDEO
45
BLACK
C-IN
A14
FILTERS
STRETCH
44
R-Y
U
SY-CVBS-IN
PAL/NTSC
BASE
A10
VIDEO
SECAM
B-Y
BAND
V
WHITE
42
IDENT
A14
CVBS1-IN
DECODER
DELAY
STRETCH
51 52 53 50
A14
R-V-IN
A14
G-Y-IN
A14
B-U-IN
A14
FBL-1
A2
5241
LINE DEFLECTION
+8V
7200-D
V
+13V
LOTAUX
TDA95XX
9
11
S2
3251
H-DRIVE
30
H DRIVE
2nd LOOP
31
V
H-SHIFT
A1
DEF
7403
7404
TXT/OSD
VIDEO IDENT
DISPLAY
7401
DRIVER
L1
STAGE
S3
3244
H
17
V DRIVE+
H/V SYNC
V-DRIVE
V
SEPARATOR
S4
+
3249
16
V DRIVE-
H-OSC
GEOMETRY
+PLL
S5
EW
3250
34
15
N.C.
+
GEOMETRY
A3
FRAME DEFLECTION
F1
3474
VDRIVE+
VDRIVE-
3479
A12
A7
FRONT CONTROL
CONTROL
WITHOUT
SIDE AV
7200-B
+HP
TDA95XX
A1
0246
ERR
4
2
L+
5
6692
A2
L
TSOP1836
4
L-
3
IR
IR
67
A3
10
R-
2
1
A14
STATUS1
A4
R
2
A14
STATUS2
TRANSCEIVER
12
R+
1
6691
LED
+3.3V
A1
69
POWER DOWN
LED
5
HEADPHONE
KEYBOARD-
KEYBOARD-
PROTN
_PROTN
80
LOCAL
KEYBOARD
ROM
RAM
1/10
PAGES
MEMORY
HEADPHONE
TELE
TEXT
0255
L+
4
L
CVBS SYNC
L-
3
R
G
R-
2
B
R
BL
R+
1
COR
CRT
B
2X
3316
3326
V11
7311:
-
3317
7313
OSD
0243
0245
V12
V5
7321:
-
3201
R
RGB
R
56
1
1
7323
CONTROL
G
V6
3202
G
57
2
2
OSD TEXT
B
7331:
V7
3203
INSERT
B
58
3
3
7333
V13
3347
BLUE
V9
3204
STRETCH
55
4
4
BLKCURINFO
FILAMENT
WHITE-P.
BLK
5
5
3235
ADJ
BLK-IN
6
6
54
A2
7204
+160V
EHT INFO
EHT INFO
A2
PROC.
0244
6409
3416
0220
VIDEOSUPPLY
3
2
1
M_AUX
5445
MAIN SUPPLY
6406
2
95V
EHT
BAV70
7
1
3404
L3
7402
5444
BUT11APX
0221
1
LINE
FOCUS
VG2
OUTPUT
2
L2
8
CIRCUIT
HOR.
DEFL.
COIL
6402
5
4
N.C.
3421
A6
HFLYBK
3
10
6410
9
7408
6
3423
6405
ERR
3
VLOT AUX +13V
F5
V_GUARD
A2
6471
2473
6423
3428
2
6
3
7471
TDA9302H
FLYBACK
F3
7
GENERATOR
3471
0222
+
5
1
6413
3411
OP. AMP
1
-
F4
THERMAL
2
PROTECTION
F2
VERT.
4
DEFL.
3475
3471
COIL
-13V
+3.3V
+3.3V
7602
M24C08
5602
5603
5604
3611
66
61
59
EEPROM
8
(NVM)
68
7
6
I/O
+3.9V
ERR
5
9
IIC
3607
3606
3604
3603
BUS
3625
72
SDA
A4
SDA
A7
3624
C4
71
SCL
SCL
A9
C5
ERR
6
I/O
3
A4
PORTS
SEL-IF-LL-M-TRAP
6
STANDBY-CON
A1
70
SEL-MAIN-FRONT-RR
A10
78
BASS PANORAMA
A8
77
TREBLE-BUZZER-HOSP-APP
A8
VST
73
PWM-
VOLUME/MUTE
A8
DAC
SDM
C1
9641
63
9631
CPU
1660
SERVICE
64
12MHz
COMPAIR
CONNECTION
C2
0217
SDA
1
H
SCL
OSD
2
TELETEXT
V
DISPLAY
3
+160V
3336
3317
V14
R
V15
7
3327
R
G
5
G
CRT
B
3
-
B
3337
V16
3348
ERR
11
5341
25kV
3349
3350
V
+13V
LOTAUX
3425
ERR
2
3431
EHT INFO
A5 A6
L4
V
+13V
LOTAUX
2422
L5
7407
V
+5V
LOTAUX
2410
3422
L6
+8V
FILAMENT
L7
-13V
2417
L8
3427
VT_SUPPLY
A4
7406, 7409
3413
V
A3
PROT
GUARD
CIRCUIT
BLK-IN
A5
7405
3412
2419
PROT
CIRCUIT
EHT o
A6
ERR
2
CL 16532008_034.eps
300501
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