Panasonic TX-21AP1 User manual

Colour Television
TX-21AP1
Z8T Chassis
SPECIFICATIONS
Power Source: 220-240V a.c., 50Hz
Power Consumption: 52W
Stand-by Power
Consumption: 0,9W
Aerial Impedance: 75Ωunbalanced, Coaxial Type
Receiving System: PAL I, PAL-525/60
M.NTSC (AV only)
NTSC (AV only)
Receiving Channels: UHF E21-E68
Intermediate Frequency:
Video/Audio
Video 39,5MHz
Audio 33,5MHz
32,95MHz (NICAM)
Colour 35,07MHz
Terminals:
AV1 IN Video (21 pin) 1V p-p 75Ω
Audio (21 pin) 500mV rms 10kΩ
RGB (21 pin) 0,7V p-p 75Ω
AV1 OUT Video (21 pin) 1V p-p 75Ω
Audio (21 pin) 500mV rms 1kΩ
AV FRONT Audio (RCAx2) 500mV rms 10kΩ
Video (RCAx1) 1V p-p 75Ω
High Voltage: 27kV ± 1kV
Picture Tube: A51ERF135X71 51cm
Audio Output: 2 x 5W RMS, 2 x 10W MPO
8ΩImpedance
Headphones: 8ΩImpedance
Accessories
supplied : Remote Control
2 x R6 (UM3) Batteries
Dimensions:
Height: 476mm
Width: 524mm
Depth: 473mm
Net weight: 22kg
Specifications are subject to change without notice.
Weights and dimensions shown are approximate.
NOTE: This Service Manual should be used in conjunction with
the Z8 Technical guide.
ORDER No. 02-SM-002
Panasonic CS ( U.K. ) Ltd.
WILLOUGHBY ROAD,
BRACKNELL,
BERKS.,
RG12 8FT.

VIDEO & STEREO AUDIO BLOCK DIAGRAM
TUNER
IC601
23 IF1
UOC
X103
Q2001
JK3101
HEADPH
L
24 IF2
28 SIF1
29 SIF2
R IN 46 G IN 47
B IN 48
QSS OUT 35
VIDEO OUT 38
VIDEO IN 40
VIDEO EXT 42
53 B OUT
52 G OUT 51 R OUT
IF1 IF2
R
V
E7
1
E6
3
R
L
IC2001
QSS IN 47
R IN 42
L IN 41
OUT L 31
OUT R 30
24 AMP R
25 AMP L
MULTI-STANDART
SOUND
PROCESSOR
IC251
AUDIO OUTPUT IC
5 R IN
1 L IN
L OUT 10
R OUT 8
3
1
Q2001
Q601 Q602
Q2004 Q2003
AV 21 PIN SCART
20 VIDEO IN
15 R IN
11 G IN
19 VIDEO OUT
7 B IN
6 L IN
3 L OUT
2 R IN
1 R OUT
Q3104
X
602
SOUND TRAP
E-BOARD
E8
1
2
3
Y2
1
2
3
CRT
Y-BOARD
IC351
123
7
8
9
Q351
D370
D371
D372
7

POWER SUPPLY & DEFLECTION BLOCK DIAGRAM
1
3
CRT
Y-BOARD
IC351
5
7
8
9
Q351
D350
Y3
1
2
F801 S802
Degauss Coil
T802 RL801
+
~
D802
~
P2 P1
S2 S1
2
43
1
E2
Mains In
Line
Filte
r
12
E3
D801
D1202
Q1201
+
~
D1201
~
IC1104
REMOTE IN
VCC
IC1103
EAROM
8
IC1102
31
IC1201
3
1
IC1102
VDD
R1202
5V STANDBY
Q1204
R1205
IC601 PIN 1
POWER ON/OFF
IC801
POWER
SUPPLY
3
5
4
1
R804
IC802
1
2
D812
D804
D813
D811
D806
D805
T802
S2
B2
P2
P1
S3
S4
S5
B1
S1
IC701
6
5
IC702
21
F853
F852
D853
Q851
D852
Q852
IC251
AUDIO
OUTPUT
9
Q701
Q702
Q751 Q752
IC451
VERTICAL
OUTPUT
1
7
3
64
5
2
IC601
UOC
61 VDDP
56 VDDC
54 VDDA
20 AVL/EW
14 VCC
39 VP
BCL 49
IBL 50
PROT 36
FBI/SCO 34
HOUT 33
V- 21
V+ 22
D701
D751
F851
D851
Q753 Q501 T553
D501
D510
Q551
D556
D557
HOT
D752
1
2
4
E4
6
9
4
10
8
5
3
16
T552
FBT
D559
D401
D402
Q402
Q401
D553
6
1
E1
+5
V
STANDBY
Q603
D603
+190V
D606
+8V
D601
+5V
D403
Q552
E-BOARD
5
6
Y2
1
3
E5
5
6
E8
TO RGB
INPUTS
G1
HEATER
IC1105
2
IC2001
16
33
IC851
1
3
IC852
1
3
D552
D554
5V 8V
D1205
TUNER
TU2 33
V
MB 5V
D002
D003
8

CONTROL BLOCK DIAGRAM
5
CRT
Y-BOARD
IC351
7
8
9
D350
IC601
1 STANDBY
UOC
REM IN 64
Q1102
X
601
2 SCL
3 SDA
6 KEYSCAN
8 SLOW SW
11 MUTE2
27 AGC
RESET 60
XTAL 59
XTAL 58
IBL 50
BCL 49
FBL 45
PROT 36
D1107
Q1107
D1104
+5
V
STANDBY
AV 21 PIN SCART
16 FAST SW
8 SLOW SW
SWITCHING
MATRIX
Q1109
D1106
Q1110
Q1204
Q1201
RL801
TUNER
TU2 33
V
MB 5V
IC1103
EAROM
5
IC1104
REMOTE IN
IC1105 IC2001
IC1102
OUT 1
T552
IC251
AUDIO
OUTPUT
3 MUTE
6
SDA SCL
7 SCL
8 SDA
20 RESET
XTAL 52
XTAL 51
OUT 1
3FBT
Q255
Q253
Y2
5
E8
5
E-BOARD
2
E1
3
4
A
GC
Q603
Q401
Q402
9