Panasonic TX-21AP1P User manual

Colour Television
TX-21AP1P
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 B/G, PAL D/K ,PAL-60
SECAM B/G, SECAM D/K
M.NTSC (AV)
NTSC (AV only)
Receiving Channels:
VHF E2-E12 VHF H1-H2 (ITALY)
VHF A-H (ITALY) VHF R1-R2
VHF R3-R5 VHF R6-R12
UHF E21-E69 CATV (S01-S05)
CATV S1-S10 (M1-M10) CATV S11-S20 (U1-U10)
CATV S21-S41 (HYPERBAND)
Intermediate Frequency:
Video/Audio
Video 38,9MHz
Audio 32,4MHz, 32,66MHz (A2 CZECH)
33,05MHz (NICAM)
33,4MHz, 33,16MHz (A2)
33,05MHz (NICAM B/G)
Colour 34,47MHz
34,5MHz, 34,65MHz
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-007

ADJUSTMENT PROCEDURE
Item / Preparation Adjustments
+B SET-UP
1. Receive a Greyscale signal.
2. Set the controls :
Brightness Minimum
Contrast Minimum
Volume Minimum
Confirm the following voltages.
B1 3,3 ± 0,3V B13 -16 ± 1V
B2 190 ± 10V B14 27,5 ± 1,5V
B3 16 ± 1V B15 28 ± 1,5V
B4 10 ± 1V B16 13 ± 1V
B8 5 ± 0,3V B17 8 ± 1V
B11 127 ± 10V B18 5±0,3V
CUT OFF / Ug2 Test
1. Receive a Greyscale signal.
2. Degauss the tube externally.
3. Set the TV into Service Mode 1.
4. Select Cut off mode.
Set Contrast on maximum, set Brightness on center, switch
on AV mode.
Enter Service mode. Set Sub-Brightness to 31. Select Ug2
Test. Press "+" and adjust screen Vr till sharp vertical line is
visible and LED switches off. Then reduce screen Vr till LED
is just switched on (pin6 of connector E1 must be connected
to GND).
SELF CHECK
Self-check is used to automatically check the bus lines and hexadecimal code of the TV set.To enter Self-Check mode, press
the STATUS button on the remote control and at the same time press the down (-/v) button on the customer controls at
the front of the TV set. To exit Self Check, switch off the TV set at the power button.
If the CCU
p
orts have been checked and found to be incorrect or not located then " - - " will a
pp
ear in
p
lace of "O.K.".
Service Aids
To aid in the service of our current chassis there are a number of Service Aids which have been made available.
•LUCI interface kit (Linked Utility Computer Interface)
Part number: TZS6EZ002
This contains interface and cables for connecting TV service connector and a PC as well as diagnostic software. As new
models are introduced upgrade software will become available.
•VICI (Visual Interactive Computer Information)
These C.D.'s contain multimedia documentation providing quick access to service information.
Part No. TZS7EZ006, TZS7EZ005, TZS8EZ001 & TZS9EZ001
1. Service Manuals
2. Instruction Books
3. Technical Information
•TASMIN (Technically Advanced System for Multimedia Interactive Notes)
As well as providing a first step towards more interactive training this product also achieves quick access to Technical
Information.
OPTION 1 EC
OPTION 2 03
4

WAVEFORM PATTERN TABLE
5
CONDITIONS:
Contrast: MAX
Brightness: MID
Colour: MID
Sharpness: MID

ALIGNMENT SETTINGS
To access Service Mode select program position 99 and set sharpness to minimum.
Press “MUTE” button on remote control and at the same time press the "V" button on the customer controls at the front of
the TV, this will place the TV set into Service Mode.
Press ∧
∧∧
∧/ ∨
∨ ∨
∨ buttons to step up / down through the functions.
Press + / - buttons to alter the function values.
Press “STR” button on the customer controls at the front of the TV after each adjustment has been made to store the
required values.
To exit Service Mode press “N” button.
Alignment Function Setting indication
Note: All setting values are approximate Settings / Special features
1. Cut off (Ug2) LED ON/OFF
(pin6 of connectorE1 to the GND) LED to be just ON
2. Vertical slope V-SLO 029 Optimum setting.
3. Vertical Position V-POS 035 Optimum setting.
4. Vert. Amplitude V-AMP 054 Optimum setting.
5. Horizontal Shift H-CTR 034 Optimum setting.
6. Horizontal Parallelogram H-PAR 035 Optimum setting.
7. Horizontal Bow H-BOW 025 Optimum setting.
8. R-Cut R-CUT 008 Optimum setting.
9. G-Cut G-CUT 008 Optimum setting.
10. R-Drive R-DRV 039 Optimum setting.
11. G-Drive G-DRV 031 Optimum setting.
12. B-Drive B-DRV 031 Optimum setting.
13. AGC AGC 028 Optimum setting.
14. Sub Colour S-COL 015 Optimum setting.
15. Sub Brightness S-BRI 026 Optimum setting.
16. Horizontal Width EW-WD 049 Optimum setting.
17. EW Parabola EW-PR 009 Optimum setting.
18. EW Upper Corners EW-UC 037 Optimum setting.
19. EW Lower Corners EW-LC 051 Optimum setting.
20. EW Trapezoid EW-TP 022 Optimum setting.
To access Option Bytes input remote code "FA" followed by key 5(14 hex) or to access from Service Mode press "Status
button" on remote control.
(numerical keys 0-7 to change value, TV/AV button to store on remote control):
Option Byte 1 Option Byte Table Option Byte 2 Option Byte Table
Bit No. Value Functions Bit No. Value Functions
0 0 French model 0
1
NO
YES 0 1 Sound AI 0 1
NO
YES
1 0 Irish model 0
1
NO
YES 11 CATS 0
1
YES
NO
2 1 NICAM 0
1
NO
YES 2 - - - - - - - -
3 1 A2 Stereo 0
1
NO
YES 3 - - - - - - - -
4 0 Tuner manufacturer 0
1
MACO
ALPS 4 - - - - - - - -
51 E-Wcircuit0
1
NO
YES 5 - - - - - - - -
6 1 Q-link 0
1
NO
YES 6 - - - - - - - -
7 1 TOP TEXT 0
1
YES
NO 7 - - - - - - - -
6

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
4
3
1
E2
Mains In
Line
Filte
r
1
2
E3
D801
D1202
Q1201
+
~
D1201
~
IC1104
REMOTE IN
VCC
IC1103
EAROM
8
IC1102
3
1
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
12
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
A
UDIO
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
13
D552
D554
5V 8V
D1205
TUNER
TU2 33
V
MB 5V
D002
D003
8

CONTROL BLOCK DIAGRAM
9
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
Q-LINK OUT 63
Q-LINK IN 62
Q1106 Q1103
Q1104 Q1105
10 Q-LINK