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SPECIFICATIONS
Power Source:
220-240V a.c., 50Hz
Power Consumption:
90W
Stand-by Power
Consumption:
1,4W
Aerial Impedance:
75Ω unbalanced, 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:
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
AV2 IN
AV2 OUT
AV3 IN
High Voltage:
Picture Tube:
Audio Output:
Headphones:
Accessories
supplied :
Dimensions:
Height:
Width:
Depth:
0,7V p-p 75Ω
Net weight:
Specifications are subject to change without notice.
Weights and dimensions shown are approximate.
NOTE:
the EURO-4 Technical guide.
Colour Television
TX-28PL1
EURO- 4 Chassis
Video (21 pin)
Audio (21 pin)
S-Video IN
(21-pin)
Video (21 pin)
Audio (21 pin)
S-Video IN
(4-pin)
Audio (RCAx2)
Video (RCAx1)
30,5kV ± 1kV
W66EKT50X21
2 x 7W RMS, 2 x 15W MPO
8Ω Impedance
8Ω Impedance
Remote Control
2 x R6 (UM3) Batteries
508,8mm
763,2mm
512,2mm
42kg
This Service Manual should be used in conjunction with
Panasonic CS ( U.K. ) Ltd.
ORDER No. 01-SM-017
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
Y: 1V p-p 75Ω
C:0,3V p-p 75Ω
500mV rms 10kΩ
1V p-p 75Ω
66cm
WILLOUGHBY ROAD,
BRACKNELL,
BERKS.,
RG12 8FT.
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Table of Contents
Related Manuals for Panasonic TX-28PL1
Summary of Contents for Panasonic TX-28PL1
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Page 1: Specifications
Video (21 pin) 1V p-p 75Ω Weights and dimensions shown are approximate. Audio (21 pin) 500mV rms 1kΩ NOTE: This Service Manual should be used in conjunction with the EURO-4 Technical guide. Panasonic CS ( U.K. ) Ltd. WILLOUGHBY ROAD, BRACKNELL, BERKS., RG12 8FT. -
Page 2: Table Of Contents
CONTENTS SAFETY PRECAUTIONS................................2 SERVICE HINTS ..................................3 SERVICE POSITION.................................4 ADJUSTMENT PROCEDURE AND SELF-CHECK ........................5 WAVEFORM PATTERN TABLE ...............................6 ALIGNMENT SETTINGS................................7 BLOCK DIAGRAMS ..................................8 PARTS LOCATION .................................12 REPLACEMENT PARTS LIST ..............................13 SCHEMATIC DIAGRAMS ...............................24 CONDUCTOR VIEWS................................32 SAFETY PRECAUTION GENERAL GUIDE LINES It is advisable to insert an isolation transformer in the Check each exposed metallic part and check the a.c. -
Page 3: Service Hints
SERVICE HINTS How to remove the rear cover 1. Remove the 10 screws as shown in Fig.2. SCREWS SCREWS Fig. 2 LOCATION OF CONTROLS Y-Board M-Board Q-Board P-Board Z-Board Focus H-Board E-Board Screen Fig. 3... -
Page 4: Service Position
HOW TO MOVE THE CHASSIS INTO SERVICE POSITION Remove the bead clamper from the mains lead. Hold and lift the rear of the chassis and gently pull the chassis towards you, as shown in Fig.4. Release the respective wiring clips and rotate the chassis horizontally through 90° anti-clockwise. Locate the chassis to position Fig .7. -
Page 5: Adjustment Procedure And Self-Check
ADJUSTMENT PROCEDURE Item / Preparation Adjustments +B SET-UP Confirm the following voltages. Receive a Greyscale signal. ± 2V ± 0,25V Set the controls : ± 0,25V ± 1,5V ± 0,5V ± 0,5V Brightness Minimum 15,5 ± 1V ± 0,5V B12 26 ±... -
Page 6: Waveform Pattern Table
WAVEFORM PATTERN TABLE CONDITIONS: CONTRAST...MAX, BRIGHTNESS...MID, COLOUR...MID, SHARPNESS...MID... -
Page 7: Alignment Settings
ALIGNMENT SETTINGS (The figures below are nominal and used for representative purposes only.) Set the Bass to maximum position, set the Treble to minimum position, set the Volume to minimum then press the down button (-/v) on the customer controls at the front of the TV and at the same time press the INDEX button on the remote control, this will place the TV into the Service Mode. - Page 11 F802 S802 Degauss Coil...
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Page 12: Parts Location
PARTS LOCATION NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List. - Page 13 5(3/$&(0(17 3$576 /,67 ,PSRUWDQW 6DIHW\ 1RWLFH 8‚€ƒ‚r‡†ÃDqr‡vsvrqÃi’ÃÃÃÃÃÃÃÀh…xÃuh‰rƃrpvhyÃpuh…hp‡r…v†‡vp†Ãv€ƒ‚…‡h‡Ãs‚…Æhsr‡’ ÃXurÃ…rƒyhpvtÃh’ÂsÇur†rÃp‚€ƒ‚r‡†Ãˆ†rÂy’Àhˆshp‡ˆ…r…†Ã†ƒrpvsvrqÃh…‡† DÃph†rÂsÂ…qr…vtÇur†rƃh…rÃh…‡†Ãƒyrh†rÃhyh’†ÃhqqÇurÃp‚€ƒyr‡rÃH‚qryU’ƒrà ˆ€ir…Ç‚Ã’‚ˆ…Â…qr… 8p‡ÃSrs Qh…‡†ÃIˆ€ir… 9r†p…vƒ‡v‚ 8p‡ÃSrs Qh…‡†ÃIˆ€ir… 9r†p…vƒ‡v‚ @YQGP9@9ÃWD@X D8† ÃÃÃÃà @67B !$%8! TQ@6F@SÃÃÃÃÃÃÃÃÃà D8!$ G6#!'!ÃÃÃÃÃà 6V9DPÃPVUQVUÃÃÃÃÃÃÃà ÃÃÃÃÃ! @IB!&$ #B UVI@SÃÃÃÃÃÃÃÃÃÃÃà D8"$ U96% "RI" SB7ÃPVUQVUÃÃÃà ÃÃÃÃÃ" @VS$ ! ÃÃà S@HPU@Ã8PIUSPGÃÃà D8#$ G6&'#$IÃÃÃÃà W@SUD86GÃPVUQVUÃÃÃÃÃÃÃ...
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- Page 23 NOTES...
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Page 24: Schematic Diagrams
SCHEMATIC DIAGRAMS FOR MODEL TX-28PL1 (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 32: Conductor Views
CONDUCTOR VIEWS FOR MODEL TX-28PL1 E-BOARD TNP8EE009 D1104 C8 D855 TRAN’S Q101 D1105 B8 D856 Q102 D2101 F5 D857 Q104 D2102 F5 D858 Q105 D2103 F5 D859 Q1051 E7 D2104 F5 D861 Q1101 E6 D2105 F5 D862 Q1104 D7 D2303 D5... - Page 33 Y - BOARD TNP8EY012 TRAN’S D362 Q351 B3 D363 Q352 B3 D364 Q353 B3 D901 Q354 B1 D902 Q905 C3 D903 Q906 C3 D904 Q907 C3 D905 Q908 D2 D906 Q909 D2 D907 DIODES IC’S D354 B3 IC351 D355 TP’S D356 B3 TPY1 D357...
- Page 34 M - BOARD TNP8EM025 TRAN’S Q1062 A1 Q1900 B8 Q3201 B6 Q3202 A6 Q3203 A6 Q3204 B6 Q3205 A6 Q3206 B6 Q3207 B6 Q3208 B7 Q3209 B7 DIODES D1055 A1 D1061 A1 D3201 A7 D3202 A7 IC’s IC1061 A1 IC1900 B8...
- Page 35 P - BOARD TNP8EP018 DIODES D580 D581...
- Page 36 Q - BOARD TNP8EQ002 Z - BOARD TNP8EZ003 TRAN’S IC’s Q2201 IC2201 Q2202 IC2221 IC2302...
- Page 37 NOTES...