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Order No: PCZ0510102C2
TX-21AT2P
CP-521P Chassis
SPECIFICATIONS
Power Source: 220-240V a.c.,50Hz AV2 FRONT Audio (RCAx1) 500mV rms 10k
Video (RCAx1) 1V p-p 75
Power Consumption: 55W
Stand-by Power High Voltage: 28kV ± 1kV
Consumption: 1,5W
Picture Tube: A51QDX993X23 51cm
Aerial Impedance: 75 unbalanced, Coaxial
Type Audio Output: 1x5W RMS, 1x10W MPO,
8 impedance
Receiving System: PAL-I, B/G, D/K, PAL-525/60
SECAM B/G, D/K, Headphones: 8 impedance
M.NTSC (AV only)
NTSC (AV only) Accesories
Receiving Channels: supplied: Remote Control
VHF E2-E12 VHF H1-H2(ITALY) 2xR6 (UM3) Batteries
VHF A-H (ITALY) VHF R1-R2
VHF R3-R5 VHF R6-R12 Dimensions:
UHF E21-E69 CATV (S01-S05) Height: 476 mm
CATV S1-S10 (M1-M10) CATV S11-S20 (U1-U10) Width: 524 mm
CATV S21-S41 (HYPERBAND) Depth: 473 mm
Net weight: 22 kg
Intermediate Frequency:
Video/Audio
Video 38,9MHz
Sound 33,4MHz (B/G),
32,4MHz (D/K),
Colour 34,47MHz (PAL)
34,5MHz, 34,65MHz (SECAM)
Terminals:
AV1 IN Video (21pin) 1V p-p 75 Specifications are subject to change without notice.
Audio(21pin) 500mV rms 10k Weights and dimensions shown are approximate.
RGB (21pin) 0,7V p-p 75
AV1 OUT Video (21pin) 1V p-p 75
Audio (21pin) 500mV rms 1k
CONTENTS
SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
SERVICE HINTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
VOLTAGE CHECK AND OPTION BYTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
WAVEFORM PATTERN TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
ALIGNMENT SETTINGS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
PARTS LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SCHEMATIC DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
CONDUCTOR VIEWS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SAFETY PRECAUTION
GENERAL GUIDE LINES
1. It is advisable to insert an isolation transformer in the 4. Check each exposed metallic part and check the
a.c. supply before servicing a hot chassis. voltage at each point.
2. When servicing, observe the original lead dress in the 5. Reverse the a.c. plug at the outlet and repeat each of
high voltage circuits. If a short circuit is found, replace the previous measurements.
all parts that have been overheated or damaged by the 6. The potential at any point should not exceed
short circuit. 1,4 Vrms. In case a measurement is outside the limits
3. After servicing, see that all the protective devices specified, there is a possibility of a shock hazard, and
such as insulation barriers, insulation papers, shields the receiver should be repaired and rechecked before
and isolation R-C combinations are correctly installed. it is returned to the customer.
4. When the receiver is not being used for a long period
of time, unplug the power cord from the a.c. outlet. HOT CHECK CIRCUIT
5. Potentials as high as 29kV are present when this rece-
iver is in operation. Operation of the receiver a.c. VOLTMETER
without the rear cover involves the danger of a shock
hazard from the receiver power supply. Servicing
should not be attempted by anyone who is not
familiar with the precautions necessary when working
on high voltage equipment. Always discharge the
anode of the tube. 2k 10 Watts WATER PIPE
6. After servicing make the following leakage current (EARTH)
checks to prevent the customer from being exposed TO INSTRUMENT'S EXPOSED
METALLIC PARTS
to shock hazard.
Fig.1
LEAKAGE CURRENT COLD CHECK
1. Unplug the a.c. cord and connect a jumper between X-RADIATION WARNING
the two prongs of the plug. 1. The potential sources of X-Radiation in TV sets are
2. Turn on the receiver's power switch. the high voltage section and the picture tube.
3. Measure the resistance value with an ohmmeter, 2. When using a picture tube test jig for service, ensure
between the jumpered a.c. plug and each exposed that the jig is capable of handling 29kV without
metallic cabinet part on the receiver, such as screw causing X-Radiation.
heads, aerials, connectors, control shafts etc. When
the exposed metallic part has a return path to the NOTE: It is important to use an accurate periodically
chassis, the reading should be between 4M ohm and calibrated high voltage meter.
20M ohm. When the exposed metal does not have a 1. Set the brightness to minimum.
return path to the chassis, the reading must be infinite. 2. Measure the high voltage. The meter should indicate:
LEAKAGE CURRENT HOT CHECK 28kV ± 1kV.
1. Plug the a.c. cord directly into the a.c. outlet. Do not If the meter indication is out of tolerance, immediate
use an isolation transformer for this check. service and correction is required to prevent the
2. Connect a 2k 10W resistor in series with an possibility of premature component failure.
exposed metallic part on the receiver and an earth, 3. To prevent any X-Radiation possibility, it is essential
such as a water pipe. to use the specified tube.
3. Use an a.c. voltmeter with high impedance to
measure the potential across the resistor.
2
SERVICE HINTS
How to remove the rear cover
1. Remove the 5 screws as shown in Fig. 2.
SCREWS
SCREWS
Fig. 2
LOCATION OF CONTROLS
SCREEN FOCUS
CRT Board MAIN Board
Fig. 3
3
VOLTAGE CHECK
SMT TSM-3435A1*
MAIN B+ Voltage [V] 121,5 ±1V D820
test conditions ;
12V [V] 10 ± 0,5 V D830 Input voltage : 230VAC
STAND-BY [V] 12 ± 0,5 V D831 TV set on ON mode (if nothing specified)
Picture : colour bar - Dynamic
45V [V] 43 ± 0,5 V D833
Sound : 1KHz (Normal)
SOUND B+ [V] 14,5 ± 0,5 V *Volume Min.
14 ± 0,5 V *Volume Max.
FBT LTC-535*
27,6 ± 0,5 kV load Max.
High Voltage [V]
28,6 ± 0,5 kV load Min. test conditions ;
Retrace time 9,9 ± 0,2 us Input voltage : 230VAC
Ct = 6200pF
Vcp [V] 1180 ± 20 V
Cs = 0,22uF
Video Voltage [V] 180 ± 5% L linearity: TRL-102
+14V line [V] +14 ± 5% CRT : A51QDX993X233
- 14V line [V] -13,7 ± 5%
Heater Voltage [Vrms] 6,2 ± 5%
G2 SCREEN / CUTOFF
1. Receive a Color bar pattern
Adjust the screen VR till OSD is just change to GREEN
2. set the TV into Service mode. square.
3. Select G2 SCREEN item.
OPTION BYTES
MODEL OPTION BYTE 1 OPTION BYTE 2
TX-21AT2P 10111100 0 x BC 01101111 0 x 6F
4
WAVEFORM PATTERN TABLE
VERTQ VERT DRIVE H-OUT
I501 I301 I501
pin 106 pin 3 pin 62
H-PULSE FBISO R OUT
Q401 I501 I501
BASE pin 63 pin 44
G OUT B OUT SCL
I501 I501 I501
pin 43 pin 42 pin 21
SDA VIDEO OUT
I501 I501
pin 20 pin 81
CONDITIONS: Contrast: MAX, Brightness: MID, Colour: MID, Sharpness: MID
5
ALIGNMENT SETTINGS
(The figures below are nominal and used for representative purposes only.)
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 ,, " 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.
To exit Service Mode press ,,MENU" button.
Setting in indication
No Settings / Special features
Note : All settings are approximate
1 HOR CEN 36
2 SHIPPING 40 67
3 VERT SIZE 44
4 VERT CENT 37
5 S CORECT 28
6 EW TRAPEZ -
8 V SLOPE 34
8 V LINEAR 36
9 HOR PARAL 35
10 CORNER B -
11 CORNER T -
12 HOR WIDTH -
13 PARABOLA -
14 AVL OFF
15 OPTION2
Refer to the Option Bytes(Page4)
16 OPTION1
17 G2 SCREEN
18 AGC LEVEL 29
19 GRN BIAS 31
20 RED BIAS 29
21 BLUE GAIN 32
22 GRN GAIN 24
23 RED GAIN 28
6
VIDEO & AUDIO BLOCK DIAGRAM
CRT
RGB OUTPUT
I502 BLOCK
EAROM
6 5
U100
TUNER
SCL 31
SDA 30
105 VIF1
Z101
104 VIF2
I601
I501 AUDIO OUT 67
SP01
AUDIO AMP
VIDEO PROCESSOR
RCA_A IN 76
RCA_V IN 78
7
51 RED IN
50 GREEN IN
49 BLUE IN
81 VEDEO OUT
90 SC_A OUT
80 SC_A IN
71 /CVBS/
JP01
7
L IN 6
R IN 2
L OUT 3
R OUT 1
RED IN 15
GRN IN 11
BLUE IN
VIDEO IN 20
VIDEO OUT 19
AV1 EURO SCART AV2
POWER SUPPLY BLOCK DIAGRAM
CRT-BOARD T402
TUNER
P401A P401 Q401 3 5
+14V 33V
6 D304 2
181V 1 1 181V
6 D405 3 -14V
RGB OUTPUT 4 D305 4 I301 D103
BLOCK 3 3 2 VERTICAL T401
R100
4 4
43V 43V 5V
14V SB1.8V_1 SB1.8V_2
MUTE
Q601 5,11,12, 33,36
29,126
SCART V.OUT 7
I501
Q501 Q502 I601
SOUND AMP MICRO PROCESSOR
SCART A.OUT VIDEO PROCESSOR
Q503 SOUND PROCESSOR
MAIN-BOARD IR01
RC I502
8
19,35,39, 47,60,82,
EAROM
LED Vcc 41,124,125 84,114
8
POWER BUS
SB3,3V SB3,3V SB3,3V SB3,3V 5V
10V
P801
LF801 D860
T801 10
1 ~ D801~ I822 5V
Line 12 D830 1 2
D804 REG
2 F801 Filter D801~ +
D804 2 I823 SB3,3V
SW801 13 D831 1 3
4 REG
15 D833 43V
~
Y801
P802 6 16 D820
I821 SB1,8V_1
1 2
1 Q812 4 1 R810 REG
I801
I823 SB1,8V_2
2 POWER 1 2
REG
SUPPLY I804
6
I803
PARTS LOCATION
NOTE:
The numbers on the exploded view below
refer to the exploded view section of the
Replacement Parts List.
3 10
6
11 9
17 2
16
7
12
13
1
8
15
18
4 14
5
9
REPLACEMENT PARTS LIST
Important Safety Notice
Components Identified by mark have special characteristics important for safety.
* When replacing any of these components, use only manufacturers specified parts.
In case of ordering these spare parts, please always add the complete Model-Type
number to your order.
Cct Ref Parts Number Description Cct Ref Parts Number Description
EXPLODED VIEW D103 TZX33B DIODE ZENER
D304 DRGP15J DIODE
1 4852092100 CABINET
D305 1N4937G DIODE
2 4852174500 BACK COVER
D313 1N4937G DIODE
3 4853568300 HOLDER AC CORD
D405 1N4937G DIODE
4 4854870901 POWER BUTTON
D450 1N4937G DIODE
5 4854963101 5-KEY BUTTON
D520 1N4148 DIODE
6 4855421300 MODEL LABEL
D521 1N4148 DIODE
7 4856017703 SCREW CRT FIX
D593 TZX7V5C DIODE ZENER
8 4856017710 SCREW CRT FIX
D601 1N4148 DIODE
9 4859724930 TUNER
D801 LT2A05G DIODE
10 4859908210 AC CORD
D802 LT2A05G DIODE
11 50H0000295 F.B.T.
D803 LT2A05G DIODE
12 58G0000147 DEGAUSS COIL
D804 LT2A05G DIODE
13 A51QDX993X23 C.R.T.
D805 1N4937G DIODE
14 EUR7628030AR REMOTE CONTROL
D806 1N4937G DIODE
15 FB136C11-B1 SPEAKER
D807 1N4937G DIODE
16 PTCPMSJ21P3L CRT P.C.B.
D808 DUZ6R8BM DIODE ZENER
17 PTMPMSJ21P3K MAIN P.C.B.
D811 TZX5V1B ZENER DIODE
18 TBM0E3001 PANASONIC BADGE
D820 DRGP15J DIODE
MISCELLANEOUS COMPONENTS
D825 1N4148 DIODE
M331 TKK0E9502-1 RETA BACK R D830 1N4937G DIODE
M332 TKK0E9503-1 RETA BACK L D831 1N4937G DIODE
M551 4855555601 DECO SENSOR A D833 1N4937G DIODE
M552 4855555701 DECO SENSOR B D860 DRGP15J DIODE
M751 4857541100 COVER JACK D902 1N4148 DIODE
M752 4857541200 COVER SPEAKER DA11 TZX5V6B ZENER DIODE
INSTRUCTION BOOKS DA20 TZX5V6B ZENER DIODE
. TQB0E0242M-M BULGARIAN DA21 TZX5V6B ZENER DIODE
. TQB0E0242N-M ROMANIAN M351 DLH2PR LED BLOCK
. TQB0E0242P-M POLISH TRANSISTORS
. TQB0E0242Q-M HUNGARIAN Q120 2SC5343Y TRANSISTOR
. TQB0E0242R-M CZECH Q401 ST1803DHI TRANSISTOR
. TQB0E0242U-M ENGLISH Q402 2SD1207 TRANSISTOR
. TQB0E0242W-M SLOVAKIAN Q501 2SC5343Y TRANSISTOR
I.C.s Q502 2SA1980Y TRANSISTOR
I301 LA78040 IC VERTICAL Q503 2SC5343Y TRANSISTOR
I501 TDA11HF00 IC MICOM FLASH Q513 2SA1980Y TRANSISTOR
I502 X24C21AT2P IC MEMORY Q601 2SA1980Y TRANSISTOR
I601 LA42072N IC AUDIO AMP Q809 2SC5343Y TRANSISTOR
I703 1346VF6 IC PREAMP Q810 2SC5343Y TRANSISTOR
I801 STR-W6753 IC POWER Q812 KTC3203-Y TRANSISTOR
I803 1K1A431B IC REGULATOR Q813 2SA1980Y TRANSISTOR
I804 KP1010C PHOTO COUPLER Q814 2SC5343Y TRANSISTOR
I822 1PJ7805 IC REGULATOR Q815 2SA1980Y TRANSISTOR
I823 LD1117AV33 IC REGULATOR Q816 2SC5343Y TRANSISTOR
FUSES Q901 KTC3207 TRANSISTOR
Q902 KTC3207 TRANSISTOR
F801 5FWML4022L FUSE
Q903 KTC3207 TRANSISTOR
DIODES
Q904 TBF420 TRANSISTOR
D101 DBAT85 DIODE Q905 TBF420 TRANSISTOR
10
Cct Ref Parts Number Description Cct Ref Parts Number Description
Q906 TBF420 TRANSISTOR R503 ERD25TJ102 CARBON 0.25W 5% 1K
Q907 TBF421 TRANSISTOR R504 ERD25TJ152 CARBON 0.25W 5% 1K5
Q908 TBF421 TRANSISTOR R505 ERD25TJ101 CARBON 0.25W 5% 100
Q909 TBF421 TRANSISTOR R506 ERD25TJ103 CARBON 0.25W 5% 10K
TRANSFORMERS R507 ERD25TJ332 CARBON 0.25W 5% 3K3
R508 ERD25TJ332 CARBON 0.25W 5% 3K3
T401 50D10A3 TRANSFORMER DRIVE
R510 ERD25TJ103 CARBON 0.25W 5% 10K
T801 50M3435A1 TRANSFORMER SMPS
R512 ERD25TJ101 CARBON 0.25W 5% 100
COILS
R514 ERD25TJ101 CARBON 0.25W 5% 100
L350 5MC0000100 COIL BEAD R517 ERD25TJ101 CARBON 0.25W 5% 100
L401 58H0000016 COIL R518 ERD25TJ101 CARBON 0.25W 5% 100
L505 PZ479K02 PEAKING COIL R519 ERD25TJ102 CARBON 0.25W 5% 1K
L507 PZ479K02 PEAKING COIL R527 ERD25TJ101 CARBON 0.25W 5% 100
L509 PZ479K02 PEAKING COIL R528 ERD25TJ101 CARBON 0.25W 5% 100
L510 PZ479K02 PEAKING COIL R530 ERD25TJ221 CARBON 0.25W 5% 220
L512 PZ479K02 PEAKING COIL R537 ERD25TJ123 CARBON 0.25W 5% 12K
L514 5CPZ100K04 PEAKING COIL R539 ERD25TJ471 CARBON 0.25W 5% 470
L515 5CPZ100K02 PEAKING COIL R540 ERD25TJ471 CARBON 0.25W 5% 470
L517 PZ479K02 PEAKING COIL R541 RN-AZ3902F METAL 0.17W - 39K
L523 PZ479K02 PEAKING COIL R546 ERD25TJ681 CARBON 0.25W 5% 680
L601 5MC0000100 COIL BEAD R547 ERD25TJ563 CARBON 0.25W 5% 56K
L605 5CPZ100K02 PEAKING COIL R551 ERD25TJ823 CARBON 0.25W 5% 82K
L801 5MC0000100 COIL BEAD R552 ERD25TJ103 CARBON 0.25W 5% 10K
L804 5MC0000100 COIL BEAD R554 ERD25TJ103 CARBON 0.25W 5% 10K
LA01 5CPZ100K02 PEAKING COIL R558 ERD25TJ391 CARBON 0.25W 5% 390
FILTERS R559 ERD25TJ222 CARBON 0.25W 5% 2K2
LF801 5PLF24A1 LINE FILTER R560 ERD25TJ221 CARBON 0.25W 5% 220
Z101 5PK2960M FILTER SAW R563 ERD25TJ101 CARBON 0.25W 5% 100
Z601 5PXF1B471M FILTER R568 ERD25TJ103 CARBON 0.25W 5% 10K
Z605 5PXF1B471M FILTER R571 ERD25TJ102 CARBON 0.25W 5% 1K
CRYSTALS R574 ERD25TJ103 CARBON 0.25W 5% 10K
R576 ERD25TJ102 CARBON 0.25W 5% 1K
X501 5XJ24R576E CRYSTAL QUARTZ
R577 ERD25TJ102 CARBON 0.25W 5% 1K
RESISTORS
R578 ERD25TJ102 CARBON 0.25W 5% 1K
R100 ERDS1TJ232 CARBON 0.5W 5% 2K3 R579 ERD25TJ101 CARBON 0.25W 5% 100
R103 ERD25TJ393 CARBON 0.25W 5% 39K R580 ERD25TJ183 CARBON 0.25W 5% 18K
R104 ERD25TJ683 CARBON 0.25W 5% 68K R581 ERD25TJ101 CARBON 0.25W 5% 100
R105 ERD25TJ103 CARBON 0.25W 5% 10K R582 ERD25TJ101 CARBON 0.25W 5% 100
R106 ERD25TJ101 CARBON 0.25W 5% 100 R583 ERD25TJ101 CARBON 0.25W 5% 100
R107 ERD25TJ101 CARBON 0.25W 5% 100 R584 ERD25TJ101 CARBON 0.25W 5% 100
R114 ERD25TJ473 CARBON 0.25W 5% 47K R588 ERD25TJ102 CARBON 0.25W 5% 1K
R115 ERD25TJ101 CARBON 0.25W 5% 100 R590 ERD25TJ334 CARBON 0.25W 5% 330K
R120 ERD25TJ101 CARBON 0.25W 5% 100 R598 ERD25TJ182 CARBON 0.25W 5% 1K8
R131 ERD25TJ472 CARBON 0.25W 5% 4K7 R599 ERD25TJ224 CARBON 0.25W 5% 220K
R310 ERD25TJ471 CARBON 0.25W 5% 470 R601 ERD25TJ103 CARBON 0.25W 5% 10K
R311 ERD25TJ471 CARBON 0.25W 5% 470 R606 ERD25TJ222 CARBON 0.25W 5% 2K2
R331 RD-2Z331J- CARBON 0.5W 5% 330 R607 ERD25TJ103 CARBON 0.25W 5% 10K
R350 ERD25TJ471 CARBON 0.25W 5% 470 R608 ERD25TJ151 CARBON 0.25W 5% 150
R351 RN-4Z1501F METAL 0.25W 1% 1K5 R610 ERD25TJ473 CARBON 0.25W 5% 47K
R370 RD-4Z229J CARBON 0.25W 5% 2.2 R611 ERD25TJ223 CARBON 0.25W 5% 22K
R394 RD-4Z152J- CARBON 0.25W 5% 1K5 R612 ERD25TJ153 CARBON 0.25W 5% 15K
R398 RN02B159JS METAL 2W 5% 1.5 R613 RD-4Z229J CARBON 0.25W 5% 2.2
R401 ERD25TJ472 CARBON 0.25W 5% 4K7 R615 RD-4Z229J CARBON 0.25W 5% 2.2
R402 ERD25TJ220 CARBON 0.25W 5% 22 R660 RD-AZ133J- CARBON 0.17W 5% 13K
R403 ERD25TJ102 CARBON 0.25W 5% 1K R661 ERD25TJ103 CARBON 0.25W 5% 10K
R405 ERD25TJ102 CARBON 0.25W 5% 1K R720 ERD25TJ122 CARBON 0.25W 5% 1K2
R406 RD-2Z751J- CARBON 0.5W 5% 750 R721 ERD25TJ181J CARBON 0.25W 5% 180
R407 ERD25TJ182 CARBON 0.25W 5% 1K8 R722 ERD25TJ221 CARBON 0.25W 5% 220
R415 ERG2SJS102 METAL 2W 5% 1K R723 ERD25TJ331 CARBON 0.25W 5% 330
R420 ERDS1TJ103 CARBON 0.5W 5% 10K R724 ERD25TJ471 CARBON 0.25W 5% 470
R422 ERD25TJ102 CARBON 0.25W 5% 1K R801 DDB7R0M290 POSISTOR - - -
R423 ERD25TJ392 CARBON 0.25W 5% 3K9 R804 ERD25TJ220 CARBON 0.25W 5% 22
R430 RN02B688JS METAL 2W 5% R68 R805 ERDS1TJ104 CARBON 0.5W 5% 100K
R431 RN02B688JS METAL 2W 5% R68 R806 RS02Y278JS METAL 2W - R27
R450 ERG2SJS103 METAL 2W 5% 10K R807 ERD25TJ221 CARBON 0.25W 5% 220
R501 ERD25TJ332 CARBON 0.25W 5% 3K3 R808 ERD25TJ182 CARBON 0.25W 5% 1K8
R502 ERD25TJ332 CARBON 0.25W 5% 3K3
11
Cct Ref Parts Number Description Cct Ref Parts Number Description
R809 ERD25TJ102 CARBON 0.25W 5% 1K C121 ECEA1H100 ELECT 50V 10µF
R810 ERD25TJ220 CARBON 0.25W 5% 22 C305 ECEA1ES221 ELECT 25V 220µF
R811 ERDS1TJ825 CARBON 0.5W 5% 8M2 C313 CMXM2A104J MYLAR 100V 100nF
R812 ERD25TJ473 CARBON 0.25W 5% 47K C315 CEXF2A100V ELECT 100V 10µF
R813 ERD25TJ473 CARBON 0.25W 5% 47K C316 ECEA1ES221 ELECT 25V 220µF
R814 ERD25TJ472 CARBON 0.25W 5% 4K7 C321 ECEA1H101 ELECT 50V 100µF
R815 ERD25TJ472 CARBON 0.25W 5% 4K7 C333 CMXM2A104J MYLAR 100V 100nF
R817 ERD25TJ473 CARBON 0.25W 5% 47K C350 CMXM2A103J MYLAR 100V 10nF
R818 ERD25TJ683 CARBON 0.25W 5% 68K C395 ECCR2H100D CERAMIC 500V 10pF
R819 RX07C339JF SOLID 7W - 3R3 C402 CMYH3C692J MYLAR 1.6KV 6.9nF
R822 RS02Y360JS METAL 2W 5% 36 C408 CMYF2G224J MYLAR 400V 220nF
R824 RS02Y360JS METAL 2W 5% 36 C412 CEXF2C229V ELECT 160V 2.2µF
R829 ERD25TJ103 CARBON 0.25W 5% 10K C414 CMXM2A104J MYLAR 100V 100nF
R830 ERD25TJ101 CARBON 0.25W 5% 100 C415 ECA2EM4R7B ELECT 250V 4.7µF
R831 ERD25TJ472 CARBON 0.25W 5% 4K7 C418 CMXM2A104J MYLAR 100V 100nF
R832 ERD25TJ473 CARBON 0.25W 5% 47K C420 ECCR2H222J CERAMIC 500V 2.2nF
R833 ERDS1TJ105 CARBON 0.5W 5% 1M C421 ECCR1H473J CERAMIC 50V 47nF
R834 ERD25TJ470 CARBON 0.25W 5% 47 C423 CCXB2H561K CERAMIC 500V 560pF
R835 RD-4Z104J CARBON 0.25W 5% 100K C430 CMXL2E104K MYLAR 250V 100nF
R836 RN-4Z6801F METAL 0.25W 1% 6K8 C502 ECEA1ES470 ELECT 25V 47µF
R837 RN-4Z2201F METAL 0.25W 1% 2K2 C503 ECKC1H102J CERAMIC 50V 1nF
R838 ERD25TJ103 CARBON 0.25W 5% 10K C504 ECKC1H102J CERAMIC 50V 1nF
R839 RD-4Z682J- CARBON 0.25W 5% 6K8 C507 CBZF1H104Z CERAMIC 50V 100nF
R841 RS02Y399JS METAL 2W 5% 3R9 C508 ECEA1ES470 ELECT 25V 47µF
R870 RD-4Z331J- CARBON 0.25W 5% 330 C509 ECKC1H103J CERAMIC 50V 10nF
R901 ERD25TJ101 CARBON 0.25W 5% 100 C510 ECEA1ES101 ELECT 25V 100µF
R902 ERD25TJ101 CARBON 0.25W 5% 100 C512 ECKC1H103J CERAMIC 50V 10nF
R903 ERD25TJ101 CARBON 0.25W 5% 100 C513 ECKC1H103J CERAMIC 50V 10nF
R904 ERD25TJ431 CARBON 0.25W 5% 430 C515 ECKC1H103J CERAMIC 50V 10nF
R905 ERD25TJ431 CARBON 0.25W 5% 430 C516 ECKC1H103J CERAMIC 50V 10nF
R906 ERD25TJ431 CARBON 0.25W 5% 430 C517 ECEA1ES101 ELECT 25V 100µF
R907 RN02B153JS METAL 2W 5% 15K C520 ECEA1H100 ELECT 50V 10µF
R908 RN02B153JS METAL 2W 5% 15K C521 ECKC1H222J CERAMIC 50V 2.2nF
R909 RN02B153JS METAL 2W 5% 15K C522 CBZF1H104Z CERAMIC 50V 100nF
R910 RN02B510JS METAL 2W - 51 C523 ECKC1H102J CERAMIC 50V 1nF
R911 RN02B181JS METAL 2W 5% 180 C524 ECQB1682JFB FILM 100V 6.8nF
R912 ERDS1TJ102 CARBON 0.5W 5% 1K C525 ECEA1H479 ELECT 50V 4.7µF
R913 ERDS1TJ102 CARBON 0.5W 5% 1K C526 CMXM2A224J FILM 100V 0.22µF
R914 ERDS1TJ102 CARBON 0.5W 5% 1K C527 ECEA1H100 ELECT 50V 10µF
R921 RS01Y309J- FILM 1W - 3 C528 ECKC1H223J CERAMIC 50V 22nF
RA02 ERD25TJ101 CARBON 0.25W 5% 100 C529 ECQV1J154JM3 FILM 63V 150nF
RA03 ERD25TJ101 CARBON 0.25W 5% 100 C532 ECKC1H102J CERAMIC 50V 1nF
RA04 ERD25TJ101 CARBON 0.25W 5% 100 C533 ECKC1H102J CERAMIC 50V 1nF
RA05 ERD25TJ103 CARBON 0.25W 5% 10K C534 ECEA1H229 ELECT 50V 2.2µF
RA06 ERD25TJ750 CARBON 0.25W 5% 75 C535 ECEA1H109 ELECT 50V 1µF
RA07 ERD25TJ332 CARBON 0.25W 5% 3K3 C539 CMXM2A472J MYLAR 100V 4.7nF
RA08 ERD25TJ750 CARBON 0.25W 5% 75 C540 CMXM2A104J MYLAR 100V 100nF
RA09 ERD25TJ750 CARBON 0.25W 5% 75 C541 CBZF1H104Z CERAMIC 50V 100nF
RA10 ERD25TJ680 CARBON 0.25W 5% 68 C542 ECEA1H100 ELECT 50V 10µF
RA11 ERD25TJ750 CARBON 0.25W 5% 75 C543 ECEA1H229 ELECT 50V 2.2µF
RA12 ERD25TJ102 CARBON 0.25W 5% 1K C545 ECEA1H229 ELECT 50V 2.2µF
RA13 ERD25TJ222 CARBON 0.25W 5% 2K2 C548 ECEA1H100 ELECT 50V 10µF
RA14 ERD25TJ220 CARBON 0.25W 5% 22 C550 ECKC1H103J CERAMIC 50V 10nF
RA15 ERD25TJ101 CARBON 0.25W 5% 100 C553 ECEA1H109 ELECT 50V 1µF
RA16 ERD25TJ750 CARBON 0.25W 5% 75 C557 ECKC1H223J CERAMIC 50V 22nF
RA17 RD-AZ432J- CARBON 0.17W 5% 4K3 C558 ECKC1H223J CERAMIC 50V 22nF
RA18 RD-AZ302J- CARBON 0.17W 5% 3K C563 ECEA1H100 ELECT 50V 10µF
RA19 ERD25TJ750 CARBON 0.25W 5% 75 C564 ECKC1H223J CERAMIC 50V 22nF
RA23 ERD25TJ153 CARBON 0.25W 5% 15K C565 ECKC1H223J CERAMIC 50V 22nF
RA24 ERD25TJ153 CARBON 0.25W 5% 15K C566 ECKC1H223J CERAMIC 50V 22nF
RA25 ERD25TJ154 CARBON 0.25W 5% 150K C567 ECEA1H100 ELECT 50V 10µF
RA29 ERD25TJ101 CARBON 0.25W 5% 100 C569 ECEA1ES470 ELECT 25V 47µF
RA32 RD-AZ162J- CARBON 0.17W 5% 1K6 C574 ECKC1H103J CERAMIC 50V 10nF
CAPACITORS C576 ECKC1H103J CERAMIC 50V 10nF
C586 ECKC1H223J CERAMIC 50V 22nF
C102 ECEA1ES470 ELECT 25V 47µF
C589 ECKC1H472J CERAMIC 50V 4.7nF
C106 ECEA1H220 ELECT 50V 22µF
12
Cct Ref Parts Number Description Cct Ref Parts Number Description
C591 CMXM2A224J FILM 100V 0.22µF
C601 ECEA1ES470 ELECT 25V 47µF
C602 ECEA1ES470 ELECT 25V 47µF
C604 ECEA1ES471 ELECT 25V 470µF
C608 ECKC1H222J CERAMIC 50V 2.2nF
C613 CMXM2A104J MYLAR 100V 100nF
C615 CMXM2A104J MYLAR 100V 100nF
C625 ECEA1H479 ELECT 50V 4.7µF
C661 ECEA1H109 ELECT 50V 1µF
C665 ECKC1H472J CERAMIC 50V 4.7nF
C690 ECEA1H100 ELECT 50V 10µF
C770 ECEA1H100 ELECT 50V 10µF
C801 CL1UC3474M CERAMIC 250V 470nF
C803 ECCR3A472J CERAMIC 1kV 4.7nF
C804 ECCR3A472J CERAMIC 1kV 4.7nF
C805 CEYD2G101D ELECT 400V 100µF
C806 CCXR3A102K CERAMIC 1kV 1nF
C807 ECEA1H109 ELECT 50V 1µF
C809 ECKC1H101J CERAMIC 50V 100pF
C810 ECEA1H220 ELECT 50V 22µF
C811 CMXM2A473J MYLAR 100V 47nF
C812 CH1BFE472M CERAMIC 400V 4.7nF
C813 ECEA2CS470 ELECT 160V 47µF
C814 ECEA2CS470 ELECT 160V 47µF
C820 CCXR3D221K CERAMIC 2000V 220pF
C823 ECEA1ES471 ELECT 25V 470µF
C830 CEXF2C109V ELECT 160V 1µF
C831 CMXM2A104J MYLAR 100V 100nF
C833 CCZB1H821K CERAMIC 50V 820pF
C834 ECKC1H103J CERAMIC 50V 10nF
C835 ECEA1ES101 ELECT 25V 100µF
C840 ECEA1CS222 ELECT 16V 2200µF
C841 ECEA1H100 ELECT 50V 10µF
C844 ECEA1ES101 ELECT 25V 100µF
C862 ECEA1H100 ELECT 50V 10µF
C901 ECKC1H221J CERAMIC 50V 220pF
C902 ECKC1H221J CERAMIC 50V 220pF
C903 ECKC1H221J CERAMIC 50V 220pF
C904 CCXB3D102K CERAMIC 2kV 1nF
CA01 ECKC1H101J CERAMIC 50V 100pF
CA02 ECKC1H101J CERAMIC 50V 100pF
CA03 ECKC1H101J CERAMIC 50V 100pF
CA04 ECKC1H101J CERAMIC 50V 100pF
CA05 ECEA1H229 ELECT 50V 2.2µF
CA10 ECKC1H101J CERAMIC 50V 100pF
CA23 ECKC1H101J CERAMIC 50V 100pF
CA24 ECKC1H101J CERAMIC 50V 100pF
CA30 ECKC1H101J CERAMIC 50V 100pF
CA33 ECKC1H101J CERAMIC 50V 100pF
TERMINALS AND LINKS
JPA1 4859200401 AV TERMINAL
JPA2 4859117250 AV TERMINAL
SCT1 4859303530 SOCKET CRT
SWITCHES
SW700 5S50101Z90 SWITCH
SW701 5S50101Z90 SWITCH
SW702 5S50101Z90 SWITCH
SW703 5S50101Z90 SWITCH
SW704 5S50101Z90 SWITCH
SW801 ESB92S11B SWITCH
RELAYS
Y801 5SC0101003 RELAY
13
SCHEMATIC DIAGRAMS FOR MODELS
TX-21AT2P
(CP-521P CHASSIS)
IMPORTANT SAFETY NOTICE
Components identified by mark have special
characteristics important for safety.
When replacing any of these components,
use only manufacturers' specified parts.
NOTE
1. RESISTOR
All resistors are carbon ¼W resistor, unless marked otherwise.
Unit of resistance is OHM () (k=1,000, M=1,000,000)
2. CAPACITORS
All capacitors are ceramic 50V unless marked otherwise.
Unit of capacitance is µF unless otherwise stated.
3. COIL
Unit of inductance is µH, unless otherwise stated.
4. EARTH SYMBOL
Chassis Earth (Cold)
Line Earth (Hot)
5. VOLTAGE MEASUREMENT
Voltage is measured by a d.c. voltmeter.
Measurement conditions are as follows:
Power source a.c. 220V-240V, 50Hz
Receiving Signal Colour Bar signal (RF)
All customer controls Maximum position
These schematic diagrams are the latest at time of printing and are subject to change without notice.
REMARKS
a. Do not touch the hot part, or the hot and cold parts at the same time, as you are liable to a shock hazard.
b. Do not short circuit the hot and cold circuits as electrical components may be damaged.
c. Do not connect an instrument, such as an oscilloscope, to the hot and cold circuits simultaneously as this may cause fuse failure.
Connect the earth of the instruments to the earth connection of the circuit being measured.
d. Make sure to disconnect the power plug before removing the chassis.
NOTE
1. The Power Supply Circuit contains a circuit area, which uses a separate power supply to isolate the earth connection. The circuit
is defined by HOT and COLD indications in the schematic diagram. All circuits, except the Power Circuit, are COLD.
14
15
CONDUCTOR VIEWS FOR MODELS
TX-21AT2P
MAIN BOARD PTMPMSJ21P3KS
TRAN'S D802 D4
Q120 A1 D803 D4
Q401 B5 D804 D5
Q402 B4 D805 E3
Q501 A2 D806 D4
Q502 A2 D807 D4
Q503 B2 D808 D4
Q513 A3 D811 E3
Q601 D1 D820 C4
Q809 E3 D825 C5
Q810 E3 D830 C4
Q812 C5 D831 C4
Q813 D1 D833 C4
Q814 D1 D860 C3
Q815 D1 DA11 A2
Q816 D1 DA20 E2
DA21 E3
DIODES IC'S
D101 A1 I301 A3
D103 A1 I501 C2
D304 A4 I502 D2
D305 A4 I601 E2
D313 A4 I703 E4
D405 A5 I801 E4
D450 B4 I803 C4
D520 B3 I804 D3
D521 B3 I822 B3
D593 C3 I823 C3
D601 D1
D801 D5
16
CRT-BOARD PTCPMSJ21P3LS
TRAN'S
Q901 C2
Q902 C3
Q903 C3
Q904 B2
Q905 B2
Q906 A2
Q907 B2
Q908 A2
Q909 A2
DIODES
D902 C3
17