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SPECIFICATIONS
(Information in brackets {} refers to model TX-21MK1P/M)
Power Source:
220-240V a.c., 50Hz
Power Consumption:
130W {115W}
Stand-by Power
Consumption:
1,8W
Aerial Impedance:
75Ω unbalanced, Coaxial Type
Receiving System:
PAL B/G, H, D/K, PAL-525/60
SECAM B/G, D/K
M.NTSC
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
33,16MHz, 33,4MHz
32,4MHz (A2 Stereo)
33,05MHz (NICAM)
32,66MHz, 32,4MHz (Czech Stereo)
Colour
34,47MHz (PAL)
34,5MHz, 34,65MHz (SECAM)
Terminals:
AUDIO MONITOR OUT
Audio (RCAx2) 500mV rms 1kΩ
AV1 IN
Video (21 pin) 1V p-p 75Ω
Audio (21 pin) 500mV rms 10kΩ
RGB (21 pin)
AV1 OUT
Video (21 pin) 1V p-p 75Ω
Audio (21 pin) 500mV rms 1kΩ
Colour Television
TX-28MK1P/M
TX-21MK1P/M
EURO-4 Chassis
AV2 IN
Video (21 pin)
Audio (21 pin)
S-Video IN
(21-pin)
AV2 OUT
Video (21 pin)
Audio (21 pin)
Selectable output (21 pin)
AV3 IN
Audio (RCAx2)
Video (RCAx1)
28,2kV ±1kV
High Voltage:
Picture Tube:
A66ECF50X42
{A51EER35X70
Audio Output:
2 x 15W (Music Power)
8Ω Impedance
Headphones:
8Ω Impedance
3,5 mm
Accessories
supplied :
Remote Control
2 x R6 (UM3) Batteries
Dimensions:
Height:
580mm
Width:
666mm
Depth:
472mm
Net weight:
31kg
Specifications are subject to change without notice.
Weights and dimensions shown are approximate.
NOTE:
This Service Manual should be used in conjunction with
the EURO-4 Technical guide.
ORDER No. SM-99042
1V p-p 75Ω
500mV rms 10kΩ
Y: 1V p-p 75Ω
C:0,3V p-p 75Ω
1V p-p 75Ω
500mV rms 1kΩ
500mV rms 10kΩ
1V p-p 75Ω
{28kV ±1kV}
66cm
51cm}
{481mm}
{525mm}
{477mm}
{22kg}
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Table of Contents
Related Manuals for Panasonic TX-28MK1P/M
Summary of Contents for Panasonic TX-28MK1P/M
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Page 1: Specifications
ORDER No. SM-99042 Colour Television TX-28MK1P/M TX-21MK1P/M EURO-4 Chassis SPECIFICATIONS (Information in brackets {} refers to model TX-21MK1P/M) AV2 IN Video (21 pin) 1V p-p 75Ω Power Source: 220-240V a.c., 50Hz Audio (21 pin) 500mV rms 10kΩ S-Video IN Y: 1V p-p 75Ω... -
Page 2: Table Of Contents
Set the brightness to minimum. LEAKAGE CURRENT HOT CHECK Measure the high voltage. The meter should indicate. Plug the a.c. cord directly into the a.c. outlet. Do not TX-28MK1P/M 28,2kV± 1kV. use an isolation transformer for this check. TX-21MK1P/M 28kV ± 1kV. -
Page 3: Service Hints
SERVICE HINTS How to remove the rear cover 1. Remove the 9 screws as shown in Fig.2. SCREWS Fig.2. LOCATION OF CONTROLS FOCUS SCREEN E-BOARD H-BOARD Y-BOARD Fig.3. -
Page 4: Adjustment Procedure
ADJUSTMENT PROCEDURE Item / Preparation Adjustments +B SET-UP 1. Set the +B voltage up as follows:- Adjust R811 so that B2 shows 148V±1V [130V±1V Receive a Greyscale signal. TX-21MK1P/M] Set the controls :- 2. Confirm the following voltages. ± 0,25V ±... -
Page 5: Waveform Pattern Table
WAVEFORM PATTERN TABLE Vert Drive VFLB Vert Out IC451 Pin 2 IC451 Pin 3 IC601 Pin 31 20mS 20mS 20mS H - Out H - Out H - Pulse IC601 Pin 50 IC701 Pin 5 Base Q503 64µS 64µS 64µS HFLB HFLB Video Out... -
Page 6: Alignment Settings
ALIGNMENT SETTINGS (The figures below are nominal and used for representative purposes only.) Alignment Function Settings / Special features H-Pos Horizontal Position Optimum setting. V-Pos Vertical Position Optimum setting. H-Amp Horizontal Amplitude Optimum setting. V-Amp Vert. Amplitude Optimum setting. E/W-Amp1 EW-amplitude Optimum setting. -
Page 7: Block Diagrams
VIDEO BLOCK DIAGRAM E - BOARD Y - BOARD TX-28MK1P/M ONLY Q906 Q908 COILS TX-28MK1P/M ONLY Q905 Q907 Q909 IC601 61 V IN 1 Q950 Q951 Q104 IC351 SVM OUT 34 VIDEO PROCESSOR B OUT 39 Q353 43 B IN... -
Page 8: Audio Block Diagram
AUDIO BLOCK DIAGRAM E - BOARD TUNER IC251 IC2101 AUDIO AUDIO OUTPUT PROCESSOR Q101 DACM_R 24 Q2102 Q252 Q102 47 ANA_IN1+ HEADPHONE DACM_L 25 L 11 Q2103 Q251 SC3_IN_L 37 SC3_IN_R 38 1 R OUT SC1_OUT_R 30 2 R IN SC1_IN_R 42 SC1_OUT_L 31 3 L OUT... - Page 9 CONTROL BLOCK DIAGRAM E - BOARD H - BOARD TUNER IC3401 VIDEO IC2101 SWITCHING AUDIO IC601 SDA 1 PROCESSOR VIDEO PROCESSOR SCL 1 SERVICE / TEST SDA 1 SCL 1 SDA 2 SCL 2 VPROT LOCAL KEYSCAN KEYS SWITCH IC1101 IC1103 MATRIX SCL 2...
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Page 10: Power Supply Block Diagram
POWER SUPPLY BLOCK DIAGRAM E - BOARD 5V SBY Q852 D867 Q855 D868 Q853 Q854 IC251 Y - BOARD AUDIO D862 T802 RL801 OUTPUT R854 IC351 T801 D801 Line Filter T551 OUTPUT 150V 200V D850 R802 Q850 DEGAUSS COIL -14V IC451 TUNER V-OUTPUT... -
Page 11: Parts Location
PARTS LOCATION NOTE: The numbers on the exploded view below refer to the mechanical section of the Replacement Parts List. -
Page 12: 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. -
Page 13: L.e.d
Cct Ref Parts Number Description Cct Ref Parts Number Description D855 FML22SLF610 DIODE Q2101 BC857B TRANSISTOR D856 RU4AMLF-M1 DIODE Q2102 BC857B TRANSISTOR D857 MTZJT-775.1C DIODE Q2103 BC857B TRANSISTOR D858 MA165TA5 DIODE Q2301 BC847B TRANSISTOR D859 MA165TA5 DIODE Q2302 BC857B TRANSISTOR D861 MA165TA5 DIODE... - Page 14 Cct Ref Parts Number Description Cct Ref Parts Number Description ERJ8GEY0R00 S.M.CARB .125W R103 ERJ6GEYJ222 S.M.CARB 0.1W ERJ6GEY0R00 S.M.CARB 0.1W R104 ERJ6GEYJ332 S.M.CARB 0.1W JA10 ERJ6GEY0R00 S.M.CARB 0.1W R105 ERJ6GEYJ101 S.M.CARB 0.1W JA11 ERJ6GEY0R00 S.M.CARB 0.1W R106 ERJ6GEYJ681 S.M.CARB 0.1W JA12 ERJ6GEY0R00 S.M.CARB...
- Page 15 Cct Ref Parts Number Description Cct Ref Parts Number Description R454 ERJ6GEYJ752 S.M.CARB 0.1W R812 ERD75TAJ825 CARBON 0.75W R455 ERJ6GEYJ222 S.M.CARB 0.1W R813 ERF7ZK2R7 WOUND 7W 20% R456 ERJ6GEYJ104 S.M.CARB 0.1W 100K R814 ERD25TJ473 CARBON 0.25W R457 ERJ6GEYJ223 S.M.CARB 0.1W R815 ERD25TJ222 CARBON...
- Page 16 Cct Ref Parts Number Description Cct Ref Parts Number Description R1139 ERJ6GEYJ471 S.M.CARB 0.1W R3005 ERJ6GEYJ101 S.M.CARB 0.1W R1140 ERJ6GEYJ471 S.M.CARB 0.1W R3006 ERJ6GEYJ471 S.M.CARB 0.1W R1141 ERJ6GEYJ471 S.M.CARB 0.1W R3007 ERJ6GEYJ101 S.M.CARB 0.1W R1145 ERJ6GEYJ101 S.M.CARB 0.1W R3008 ERJ6GEYJ153 S.M.CARB 0.1W R1146...
- Page 17 Cct Ref Parts Number Description Cct Ref Parts Number Description 220µF 22nF C119 ECA1CM221GB ELECT C604 ECJ2VF1H223Z ELECT 350V 220µF 100µF C120 ECA1CM221GB ELECT C605 ECA1HM101GB ELECT 560pF 3.3µF C121 ECUV1H561KBX S.M. CAP C606 ECA1HM3R3GB ELECT 100nF C607 ECJ2VF1H104Z ELECT 350V C122 ECUV1H102KBX...
- Page 18 Cct Ref Parts Number Description Cct Ref Parts Number Description 100µF 10nF C863 ECA1HM101GB ELECT C2131 ECUV1H103ZFX S.M. CAP 100nF 10nF C866 ECJ2VF1H104Z ELECT 350V C2132 ECUV1H103ZFX S.M. CAP 10µF 10nF C867 ECA1CM100GB ELECT C2134 ECUV1H103ZFX S.M. CAP 10µF 100µF C868 ECA1CM100GB ELECT...
- Page 19 12nF C556 ECQF4123JZH FILM 400V SWITCHES 470nF C559 ECWF2474JBB FILM 500V S801 ESB92S11B SWITCH S1201 EVQ21405R SWITCH DIFFERENCES FOR MODEL TX-28MK1P/M S1202 EVQ21405R SWITCH S1203 EVQ21405R SWITCH S1204 EVQ21405R SWITCH MECHANICAL PARTS S1205 EVQ21405R SWITCH ZTUZAE550A ANODE LEAD TKU8E00350 BACK COVER...
- Page 20 Cct Ref Parts Number Description Cct Ref Parts Number Description R377 ERQ1ABJP5R1 METAL 0.5W R461 ERW2PK1R2 WOUND 2W 10% R507 ERG1FJ101P METAL R702 ERQ12HJ8R2 FUSIBLE 0.5W R810 ERW2PKR27 WOUND 2W 10% R913 ERJ6GEYJ473 S.M.CARB 0.1W R914 ERJ6GEYJ822 S.M.CARB 0.1W R915 ERJ6GEYJ152 S.M.CARB 0.1W...
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Page 21: Schematic Diagrams
SCHEMATIC DIAGRAMS FOR MODELS TX-28MK1P/M / TX-21MK1P/M (EURO-4 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 RESISTOR All resistors are carbon ¼W resistor, unless marked otherwise. -
Page 27: Conductor Views
CONDUCTOR VIEWS E-BOARD TNP8EE009 TRAN’S DIODES D558 Q3601 L8 D3102 B7 D557 Q3007 M9 D3101 B7 D556 Q3006 N10 D2304 G7 D555 Q3001 N8 D2303 G7 D554 Q2304 I7 D2161 G9 D553 Q2303 M6 D2105 G10 D552 Q2302 I7 D2104 F9 D551 Q2301 L6 D2103 G10... - Page 28 Y - BOARD TNP8EY012 TRANSISTORS Q909 Q908 Q907 Q906 Q905 Q354 Q353 Q352 Q351 DIODES D906 D905 D904 D902 D901 D364 D363 D362 D361 D360 D359 D358 D357 D356 D355 D354 TEST POINTS TPY6 B8 TPY5 D5 TPY4 E5 TPY3 F6 TPY2 E7 TPY1 G6 IC’S...
- Page 29 Y - BOARD TNP8EY013 DIODES D354 D355 D356 D357 D358 D359 D360 D361 D362 D363 D364 TEST POINTS TRANSISTORS Q351 Q352 Q353 Q354 I.C.’S IC351...
- Page 30 H - BOARD TNP8EH002 TRANSISTORS Q3401 Q3402 I.C.’S IC3401 C2...