ORDER No. PCZ0410022C2

Service Manual

Colour Television

TX-21PZ1 TX-21PZ1D TX-21PZ1F TX-21PZ1P

CP-521FS Chassis

SPECIFICATIONS
Power Source: Power Consumption: Stand-by Power Consumption: Aerial Impedance: Receiving System: 220-240V a.c., 50Hz 52W AV2 IN Video (21 pin) Audio (21 pin) S-Video IN (21-pin) Video (21 pin) Audio (21 pin) Audio (RCAx2) Video (RCAx1) 28kV 1kV A51QDX993X033 51cm 2x5W RMS, 2x10W MPO, 8 impedance 8 Impedance 1V p-p 75 500mV rms 10k Y: 1V p-p 75 C: 0.3V p-p 75 1V p-p 75 500mV rms 1k 500mV rms 10k 1V p-p 75
1,5W 75 unbalanced, Coaxial Type

AV2 OUT

PAL-I, B/G, D/K, PAL-525/60 SECAM B/G, D/K, L/L M.NTSC (AV only) NTSC (AV only)

AV3 FRONT

High Voltage: Picture Tube: Audio Output:
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, 33,9MHz Sound 33,4MHz (B/G), 33,16MHz (A2) 33,05MHz (NICAM B/G,D/K,L) 32,4MHz (D/K),32,66MHz (CZ STEREO) 40,4MHz (L), 39,75MHz (LNICAM) Colour 34,47MHz (PAL) 34,5MHz, 34,65MHz (SECAM) 38,3MHz, 38,15MHz (SECAM L) Terminals:
AV1 IN Video (21 pin) Audio (21 pin) RGB (21 pin) Video (21 pin) Audio (21 pin) 1V p-p 75 500mV rms 10k 0,7V p-p 75 1V p-p 75 500mV rms 1k
Headphones: Accessories supplied:
Remote Control 2 x R6 (UM3) Batteries
Dimensions: Height: Width: Depth: Net weight:

489mm 600mm 464mm 23,0kg

Specifications are subject to change without notice. Weights and dimensions shown are approximate.

AV1 OUT

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..... 15 CONDUCTOR VIEWS..... 17

SAFETY PRECAUTION

GENERAL GUIDE LINES
LEAKAGE CURRENT COLD CHECK

1. 2. 3.

It is advisable to insert an isolation transformer in the a.c. supply before servicing a hot chassis. When servicing, observe the original lead dress in the high voltage circuits. If a short circuit is found, replace all parts that have been overheated or damaged by the short circuit. After servicing, see that all the protective devices such as insulation barriers, insulation papers, shields and isolation R-C combinations are correctly installed. When the receiver is not being used for a long period of time, unplug the power cord from the a.c. outlet. Potentials as high as 29 kV are present when this receiver is in operation. Operation of the receiver 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. After servicing make the following leakage current checks to prevent the customer from being exposed to shock hazard. Unplug the a.c. cord and connect a jumper between the two prongs of the plug. Turn on the receivers power switch. Measure the resistance value with an ohmmeter, between the jumpered a.c. plug and each exposed metallic cabinet part on the receiver, such as screw heads, aerials, connectors, control shafts etc. When the exposed metallic part has a return path to the chassis, the reading should be between 4M ohm and 20M ohm. When the exposed metal does not have a return path to the chassis, the reading must be infinite. Plug the a.c. cord directly into the a.c. outlet. Do not use an isolation transformer for this check. Connect a 2k 10W resistor in series with an exposed metallic part on the receiver and an earth, such as a water pipe. Use an a.c. voltmeter with high impedance to measure the potential across the resistor.

4. 5. 6.

Check each exposed metallic part and check the voltage at each point. Reverse the a.c. plug at the outlet and repeat each of the previous measurements. The potential at any point should not exceed 1,4 Vrms. In case a measurement is outside the limits specified, there is a possibility of a shock hazard, and the receiver should be repaired and rechecked before it is returned to the customer.

HOT CHECK CIRCUIT

a.c. VOLTMETER

10 Watts

WATER PIPE (EARTH)
TO INSTRUMENT'S EXPOSED METALLIC PARTS

Fig. 1.

X-RADIATION WARNING
The potential sources of X-Radiation in TV sets are the high voltage section and the picture tube. When using a picture tube test jig for service, ensure that the jig is capable of handling 29 kV without causing X-Radiation.
LEAKAGE CURRENT HOT CHECK
NOTE: It is important to use an accurate periodically calibrated high voltage meter. 1. Set the brightness to minimum. 2. Measure the high voltage. The meter should indicate: 28 kV 1kV. If the meter indication is out of tolerance, immediate service and correction is required to prevent the possibility of premature component failure. 3. To prevent any X-Radiation possibility, it is essential to use the specified tube.

SERVICE HINTS

How to remove the rear cover
1. Remove the 5 screws as shown in Fig. 2

SCREWS

Fig. 2

LOCATION OF CONTROLS

CRT Board

MAIN Board

Screen

Fig. 3

VOLTAGE CHECK
MAIN B+ Voltage [V] 12V [V] STAND BY [V] SOUND B+ [V] 12,1 _ +0,5V *Volume Max. 123,9 12,1 12,1 12,6

2084.0125B*

_ +1V _ +0,5V _ +0,5V _ +0,5V *Volume Min.
TEST CONDITIONS ; Input voltage : 230VAC TV set on ON mode (if othing specifed) Picture : colour bar - Dynamic Sound : 1khz - (mode : Music)
27,0 HIGH VOLTAGE [V] 28,0 RETRACE TIME Vcp [V] VIDEO VOLTGE [V] 13V LINE [V] 45V LINE [V]

HEATER VOLTAGE [Vrms]

1412.7009*
_ +1kV _ +1kV _ +0,2us _ +20V _ +5% _ +5% _ +5% _ +5%
TEST CONDITIONS ; Input voltage : 230VAC Ct = 6200 pF Cs = 0,27 uF L linearity : L-125 CRT : A51QDX993X033

10,191,5 13,0 45,4 6,21

G2 SCREEN / CUTTOFF
1. Receive a Colour bar pattern 2. Set the TV into Service mode 3. Select G2 SCREEN item Adjust the screen VR will OSD is just change to GREEN square.

OPTION BYTES

MODEL TX-21PZ1D TX-21PZ1F TX-21PZ1P TX-21PZ1 OPTION BYTE x 3C 0 x BC 0 x BC 0 x 3C OPTION BYTE x 4F 0 x 4F 0 x 6F 0 x 6F

WAVEFORM PATTERN TABLE

CONDITIONS:

Contrast: MAX,

Brightness: MID,

Colour: MID,

Sharpness: MID

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 "V" button on the customer controls at the front of the TV, this will place the TV set into Service Mode. Press / V 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 Note: All settings are approximate 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. HOR CEN SHIPPING VERT SIZE VERT CENT S CORRECT EW TRAPEZ V SLOPE V LINEAR HOR PARAL CORNER B CORNER T HOR WIDTH PARABOLA AVL OPTION2 Refer to the Option Bytes (page 4) OPTION1 G2 SCREEN AGC LEVEL GRN BIAS RED BIAS BLUE GAIN GRN GAIN RED GAIN Settings / Special features 35 00
VIDEO & STEREO AUDIO BLOCK DIAGRAM
POWER SUPPLY BLOCK DIAGRAM

HEATER 190V

MAIN-BOARD

5V Q501 Q502

S.B 5V S.B 3.3V 5V

5V 5V Q503 Q504

Q601 Q602 MUTE

8V S.B 3.3V S.B 3.3V

S.B 3.3V
5V S.B 3.3V S.B 1.8V-1 S.B 1.8V-2

33V R700

Q506 LED 5V 12V 8V S.B 5V S.B 3.3V S.B 1.8V-1 S.B 1.8V-2
FLYBACK TRANSFORMER 190V1

T401 Q809 Q810

PARTS LOCATION
The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List.

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 D407 D408 D410 D411 D414 D450 D501 D503 D504 D520 D521 D522 D523 D601 D602 D710 D801 D802 D803 D804 D805 D806 D807 D808 D811 D820 D824 D825 D830 D831 D860 D904 D905 D906 D997 DA01 DA02 DA03 DA04 DA06 DA08 DA09 DA10 DA11 DA13 DA14 DA15 DA20 DA21 DA22 I805

TRANSISTORS

Q120 Q401 Q402 Q501 Q502 Q503 Q504 Q506 Q508 Q513 Q515 Q601 Q602 Q807 Q809 Q810 Q812 Q813 Q814 Q815 Q816 T401 T801 2SC5343Y 2SD2578 2SD1207 2SC5343Y 2SA1980Y 2SC5343Y 2SA1980Y 2SC5343Y 2SC5343Y 2SA1980Y H2N7000 2SC5343Y 2SA1980Y KTA1659AY 2SC5343Y 2SC5343Y KTC3203-Y 2SA1980Y 2SC5343Y 2SA1980Y 2SC5343Y TD-19A1 2084.0125B 5CPZ100K02 5CPZ109K04 5CPZ109K04 58H0000018 PZ479K02 PZ479K02 PZ479K02 PZ479K02 PZ479K02 PZ479K02 PZ479K02 PZ479K02 5CPZ100K04 5CPZ100K02 PZ479K02 5CPZ479K04 5CPZ479K04 5CPZ479K04 PZ479K02 5MC0000100 5MC0000100 58CX430599 5MC0000100 5CPZ560K02 5PLF24A3 K3953M 5PK9650M-5PXF1B471M 5PXF1B471M 5PXF1B471M 5PXF1B471M 5PXF1B471M 5PXF1B471M 5PXF1B471M 5PXF1B471M 5PXF1B471M 5PXF1B471M 5PXF1B471M TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR TRANSFORMER DRIVE TRANSFORMER SMPS PEAKING COIL COIL PEAKING COIL PEAKING COIL H-LINEARITY PEAKING COIL PEAKING COIL PEAKING COIL PEAKING COIL PEAKING COIL PEAKING COIL PEAKING COIL PEAKING COIL PEAKING COIL PEAKING COIL PEAKING COIL COIL PEAKING COIL PEAKING COIL PEAKING PEAKING COIL COIL BEAD COIL BEAD COIL CHOKE COIL BEAD PEAKING COIL FILTER LINE FILTER SAW FILTER SAW FILTER FILTER FILTER FILTER FILTER FILTER FILTER FILTER FILTER FILTER FILTER

CRYSTALS

X501 D826 J7 J25 J26 J50 J76 J83 J84 R103 R104 R105 R106 R107 R114 R115 R120 R131 R310 R311 R331 R340 R350 R351 R370 R394 R395 R396 R398 R401 R402 R403 R404 R405 R406 R407 R415 R420 R422 R423 R444 R450 R451 R500 R501 R502 R503 R504 R505 R506 R507 R508 R510 R511 R512 R513 R514 R515 R516 R517 R518 R519 R527

RESISTORS

TRANSFORMERS
L101 L350 L351 L401 L505 L506 L507 L508 L509 L510 L512 L513 L514 L515 L516 L517 L518 L519 L523 L650 L801 L802 L804 R713

FILTERS

LF801 Z101 Z102 Z601 Z602 Z603 Z604 Z605 Z606 Z607 Z608 Z609 Z610 Z611
Cct Ref R528 R529 R530 R532 R534 R537 R538 R539 R540 R541 R542 R543 R544 R545 R546 R547 R551 R552 R553 R554 R555 R556 R557 R558 R559 R560 R561 R562 R563 R564 R565 R566 R567 R568 R569 R571 R572 R573 R574 R575 R576 R577 R578 R579 R580 R581 R582 R583 R584 R585 R586 R587 R588 R589 R590 R598 R599 R601 R602 R608 R609 R610 R611 R612 R650 R660
Parts Number ERD25TJ101 ERD25TJ101 ERD25TJ221 ERD25TJ102 ERD25TJ472 ERD25TJ123 ERD25TJ101 ERD25TJ471 ERD25TJ471 RN-AZ3902F ERD25TJ682 ERD25TJ222 ERD25TJ222 ERD25TJ473 ERD25TJ681 ERD25TJ563 ERD25TJ823 ERD25TJ103 ERD25TJ103 ERD25TJ103 ERD25TJ103 ERD25TJ101 ERD25TJ101 ERD25TJ391 ERD25TJ222 ERD25TJ222 ERD25TJ101 ERD25TJ101 ERD25TJ101 ERD25TJ101 ERD25TJ154 ERD25TJ103 ERD25TJ103 ERD25TJ103 ERD25TJ103 ERD25TJ102 ERD25TJ103 ERD25TJ103 ERD25TJ103 ERD25TJ103 ERD25TJ102 ERD25TJ102 ERD25TJ102 ERD25TJ101 ERD25TJ183 ERD25TJ101 ERD25TJ101 ERD25TJ101 ERD25TJ101 ERD25TJ101 ERD25TJ101 ERD25TJ101 ERD25TJ102 ERD25TJ102 ERD25TJ334 ERD25TJ182 ERD25TJ224 ERD25TJ152 ERD25TJ104 ERDS1TJ151 ERDS1TJ151 ERD25TJ103 ERD25TJ563 ERD25TJ563 ERD25TJ473 ERD25TJ473

Parts Number ECCR1H472J CMXM2A224J CMXM2A224J ECEA1H479 ECEA1H479 ECEA1CS101 CL1UC3474M ECCR3A472J ECCR3A472J ECA2GM181B CCXR3A102K ECEA1H109 ECKC1H101J ECEA1H220 CMXM2A473J CH1BFE472M CEYF2E470V ECA2EM101 CCYR3D221K ECEA1ES471 ECEA1H479 ECEA1H330 CCXB1H821K ECCR1H103J ECEA1ES470 ECEA1CS332 ECEA1ES101 ECEA1ES102 ECEA1ES101 ECEA1CS101 ECKC3A471J ECCR1H221J ECA2EM4R7B ECKC3D102J CMXL2E104K ECA2EM100B ECKC1H101J ECKC1H101J ECKC1H101J ECKC1H101J ECKC1H101J ECKC1H101J ECCR1H102J ECKC1H101J 4859303530 5S50101Z90 5S50101Z90 5S50101Z90 5S50101Z90 5S50101Z90 5S40101143 5SC0101003
Description CERAMIC FILM FILM ELECT ELECT ELECT CERAMIC CERAMIC CERAMIC ELECT CERAMIC ELECT CERAMIC ELECT MYLAR CERAMIC ELECT ELECT CERAMIC ELECT ELECT ELECT CERAMIC CERAMIC ELECT ELECT ELECT ELECT ELECT ELECT CERAMIC CERAMIC ELECT CERAMIC MYLAR ELECT CERAMIC CERAMIC CERAMIC CERAMIC CERAMIC CERAMIC CERAMIC CERAMIC 50V 100V 100V 50V 50V 16V 250V 1kV 1kV 400V 1kV 50V 50V 50V 100V 400V 250V 250V 2kV 25V 50V 50V 50V 50V 25V 16V 25V 25V 25V 16V 1KV 50V 250V 2KV 250V 250V 50V 50V 50V 50V 50V 50V 50V 50V 4.7nF 0.22F 0.22F 4.7F 4.7F 100F 470nF 4.7nF 4.7nF 180F 1nF 1F 100pF 22F 47nF 4.7nF 47F 100F 220pF 470F 4.7F 33F 820pF 10nF 47F 3300F 100F 1000F 100F 100F 470pF 220pF 4.7F 1nF 100nF 10F 100pF 100pF 100pF 100pF 100pF 100pF 1nF 100pF

INSTRUCTION BOOKS

. TQB0E0136-M TDA21HD01-UK X24C21PZ1 ENGLISH IC MICOM FLASH IC MEMORY

I501 I502

DIFFERENCES FOR MODEL TX--21PZ1D
17. DMP4502900 TQB0E0138A-M TQB0E0138C-M TQB0E0138D-M TDA21HD01-W X24C21PZ1D S/PLATE GERMAN ITALIAN FRENCH IC MICOM FLASH IC MEMORY
DIFFERENCES FOR MODEL TX--21PZ1F
17. DMP4503000 TQB0E0137A-M TQB0E0137B-M TQB0E0137D-M TQB0E0137E-M TQB0E0137F-M TQB0E0137G-M TQB0E0137H-M TQB0E0137J-M TQB0E0137K-M TDA21HD01-W X24C21PZ1F S/PLATE GERMAN DUTCH FRENCH SPANISH SWEDISH NORWEGIAN FINNISH PORTUGUESE DANISH IC MICOM FLASH IC MEMORY
DIFFERENCES FOR MODEL TX--21PZ1P
17. DMP4503100 TQB0E0139M-M TQB0E0139N-M TQB0E0139P-M TQB0E0139Q-M TQB0E0139R-M TQB0E0139U-M TQB0E0139W-M TDA21HD01-E X24C21PZ1P S/PLATE BULGARIAN ROMANIAN POLISH HUNGARIAN CZECH ENGLISH SLOVAKIAN IC MICOM FLASH IC MEMORY

TERMINALS AND LINKS

HEADPHONE SOCKET AV TERMINAL AV TERMINAL JACK PIN BOARD SOCKET CRT SWITCH SWITCH SWITCH SWITCH SWITCH SWITCH RELAY

SWITCHES

RELAYS
DIFFERENCES FOR MODEL TX--21PZ1

17 DMP4502800 S/PLATE

SCHEMATIC DIAGRAMS FOR MODELS TX-21PZ1, TX-21PZ1D, TX-21PZ1F, TX-21PZ1P (CP-521FS CHASSIS)
Components identified by mark have special characteristics important for safety. When replacing any of these components, use only manufacturers' specified parts.

IMPORTANT SAFETY NOTICE

1. RESISTOR All resistors are carbon W resistor, unless marked otherwise. Unit of resistance is OHM ( ) (k=1,000, M=1,000,000) CAPACITORS All capacitors are ceramic 50V unless marked otherwise. Unit of capacitance is F unless otherwise stated. COIL Unit of inductance is H, unless otherwise stated. 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. b. c. d. Do not touch the hot part, or the hot and cold parts at the same time, as you are liable to a shock hazard. Do not short circuit the hot and cold circuits as electrical components may be damaged. 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. Make sure to disconnect the power plug before removing the chassis.
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.
CONDUCTOR VIEWS FOR MODELS TX-21PZ1, TX-21PZ1D, TX-21PZ1F, TX-21PZ1P

MAIN-BOARD PTMPMSS21Y5FM

TRAN'S Q120 Q401 Q402 Q501 Q502 Q503 Q504 Q506 Q508 Q513 Q514 Q515 Q601 Q602 Q807 Q809 Q810 Q812 Q813 Q814 Q815 Q816 A1 B5 B4 A1 A1 A3 A4 E4 B2 B3 D1 D1 D3 C3 C5 D4 E4 C6 D2 D3 D1 D1