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Service Manual
SPECIFICATIONS
Power Source:
220-240V a.c., 50Hz
Power Consumption:
48W
Stand-by Power
Consumption:
0,8W
Aerial Impedance:
75Ω unbalanced, 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, 33,4MHz
Colour
34,47MHz (PAL),
34,5MHz (SECAM),
34,65MHz (SECAM)
Terminals:
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
AV FRONT
High Voltage:
Picture Tube:
Audio Output:
Headphones:
Accessories
supplied :
Dimensions:
Height:
Width:
Depth:
Net weight:
Specifications are subject to change without notice.
Weights and dimensions shown are approximate.
NOTE:
the Z8 Technical guide.
0,7V p-p 75Ω
Colour Television
TX-21AT1P
Z8T Chassis
Audio (RCAx1)
Video (RCAx1)
27kV ± 1kV
A51ERF135X71
1 x 5W RMS, 1 x 10W MPO
8Ω Impedance
8Ω Impedance
Remote Control
2 x R6 (UM3) Batteries
476mm
524mm
473mm
22kg
This Service Manual should be used in conjunction with
ORDER No. 03-SM-004
500mV rms 10kΩ
1V p-p 75Ω
51cm
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Table of Contents
Related Manuals for Panasonic TX-21AT1P
Summary of Contents for Panasonic TX-21AT1P
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Page 1: Service Manual
ORDER No. 03-SM-004 Service Manual Colour Television TX-21AT1P Z8T Chassis SPECIFICATIONS Power Source: 220-240V a.c., 50Hz AV FRONT Audio (RCAx1) 500mV rms 10kΩ Power Consumption: Video (RCAx1) 1V p-p 75Ω Stand-by Power High Voltage: 27kV ± 1kV Consumption: 0,8W Picture Tube:... -
Page 2: Table Of Contents
CONTENTS SAFETY PRECAUTIONS ................................. 2 SERVICE HINTS ..................................3 ADJUSTMENT PROCEDURE AND SELF-CHECK ........................4 WAVEFORM PATTERN TABLE ............................... 5 ALIGNMENT SETTINGS ................................6 BLOCK DIAGRAMS.................................. 7 PARTS LOCATION................................. 10 REPLACEMENT PARTS LIST..............................11 SCHEMATIC DIAGRAMS............................... 17 CONDUCTOR VIEWS ................................20 SAFETY PRECAUTION GENERAL GUIDE LINES It is advisable to insert an isolation transformer in the... -
Page 3: Service Hints
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 Y-Board E-Board Focus Screen Fig. 3... -
Page 4: Adjustment Procedure And Self-Check
ADJUSTMENT PROCEDURE Item / Preparation Adjustments +B SET-UP Confirm the following voltages. Receive a Greyscale signal. ± 0,3V ± 1V Set the controls : ± 10V 27,5 ± 1,5V ± 1V ± 1,5V Brightness Minimum ± 1V ± 1V ± 0,3V ±... -
Page 5: Waveform Pattern Table
WAVEFORM PATTERN TABLE CONDITIONS: Contrast: Brightness: Colour: Sharpness:... -
Page 6: Alignment Settings
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. ∧... -
Page 7: Block Diagrams
AUDIO IN VIDEO IN VIDEO OUT R IN G IN B IN AUDIO IN B IN R OUT AUDIO OUT G IN G OUT AUDIO IN R IN B OUT AUDIO OUT HEADPH... - Page 8 Mains In...
- Page 9 Q-LINK FAST SW SLOW SW...
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Page 10: Parts Location
PARTS LOCATION NOTE: The numbers on the exploded view below refer to the exploded view section of the Replacement Parts List. - Page 11 5(3/$&(0(17 3$576 /,67 ,PSRUWDQW 6DIHW\ 1RWLFH ‚€ƒ‚r‡†ÃDqr‡vsvrqÃi’ÃÃÃÃÃÃÃÀh…xÃuh‰rƃrpvhyÃpuh…hp‡r…v†‡vp†Ãv€ƒ‚…‡h‡Ãs‚…Æhsr‡’ ÃXurÃ…rƒyhpvtÃh’ÂsÇur†rÃp‚€ƒ‚r‡†Ãˆ†rÂy’Àhˆshp‡ˆ…r…†Ã†ƒrpvsvrqÃh…‡† DÃph†rÂsÂ…qr…vtÇur†rƃh…rÃh…‡†Ãƒyrh†rÃhyh’†ÃhqqÇurÃp‚€ƒyr‡rÃH‚qryU’ƒrà ˆ€ir…Ç‚Ã’‚ˆ…Â…qr… 8p‡ÃSrs Qh…‡†ÃIˆ€ir… r†p…vƒ‡v‚ 8p‡ÃSrs Qh…‡†ÃIˆ€ir… r†p…vƒ‡v‚ SQH%("& G@9ÃS@ @DW@SÃÃÃÃà YQGP9 9ÃWD X D ! 76""U ""WÃS@BVG6UPSÃÃÃÃÃÃÃà ÃÃÃÃà 6$ @SA "$Y& SUÃÃÃÃÃÃÃÃÃÃà D !! 76$U S@BVG6UPSÃÃÃÃÃÃÃà ÃÃÃÃÃ! @6TB !9$$!6! TQ@6F@Sà AVT T ÃÃÃÃÃ"...
- Page 12 8p‡ÃSrs Qh…‡†ÃIˆ€ir… r†p…vƒ‡v‚ 8p‡ÃSrs Qh…‡†ÃIˆ€ir… r†p…vƒ‡v‚ $(!(U'7 UC@SHDTUPSÃÃÃÃÃÃÃÃÃÃÃà U6GW"$W7 F PDGà 9'! S7W#' 9DP9@ÃÃÃÃÃÃÃÃÃÃÃà G%! U6GW"$W7 F PDGà 9'" 6V W 9DP9@ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà G%# @Y @G9S"$W 9'# TAC% &6!Q% QCPUPà PVQG@SÃÃÃÃÃÃÃà G&$ @G '7 !GÃà PDGÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà 9'$ TS !##6U'! 9DP9@ÃÃÃÃÃÃÃÃÃÃÃÃÃÃÃà G&$! @G 9'!!@ÃÃ...
- Page 13 8p‡ÃSrs Qh…‡†ÃIˆ€ir… r†p…vƒ‡v‚ 8p‡ÃSrs Qh…‡†ÃIˆ€ir… r†p…vƒ‡v‚ @SE%B@`SW TH 6S7 X S$$( @SR 67EQ"ST H@U6G X $È " ET@! @SE%B@`SW TH 6S7 X S$% @SR EQ !T AVTD7G@ X $È ET@$ @SE%B@`SW TH 6S7 X @SR !6E @ AVTD7G@ $X $È...
- Page 14 8p‡ÃSrs Qh…‡†ÃIˆ€ir… r†p…vƒ‡v‚ 8p‡ÃSrs Qh…‡†ÃIˆ€ir… r†p…vƒ‡v‚ S&%" @SB"AE$% C H@U6G "X $È S" $ @SE%B@`E!!!W TH 6S7 X $È S'! @S !aBF""$W TPGD9ÃÃà $X È "H" S" % @SE%B@`E W TH 6S7 X $È S'" @SA&aF!S&ÃÃà XPVI9ÃÃà &X !È...
- Page 15 8p‡ÃSrs Qh…‡†ÃIˆ€ir… r†p…vƒ‡v‚ 8p‡ÃSrs Qh…‡†ÃIˆ€ir… r†p…vƒ‡v‚ @ FS!C#& F7$ @S6HD $W à #&ƒA @ FS C#& F7$ @S6HD à #&ƒA @ 6 WH#& 7 @G@ U "$W #&—A @ FS"6 '!F7Q @S6HD 'A $%& @ FX"9!!!F7Q @S6HD !!A ' " @ FX"9!! E7I @S6HD Ã...
- Page 16 NOTES...
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Page 17: Schematic Diagrams
SCHEMATIC DIAGRAMS FOR MODEL TX-21AT1P (Z8T 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 20: Conductor Views
CONDUCTOR VIEWS FOR MODEL TX-21AT1P E - BOARD TNP8EE011 TRAN'S D510 D1107 Q253 D551 D1201 Q255 D552 D1202 Q401 D553 D1205 Q402 D554 D3101 Q501 D555 Q551 D556 Q552 D557 I.C.'S Q601 D559 IC251 Q602 D601 IC451 Q603 D603 IC601... - Page 21 Y - BOARD TNP8EY015 TRAN'S Q351 DIODES D350 D351 D352 D353 D370 D371 D372 I.C.'S IC351 T.P.'S TPY4 TPY5...
- Page 22 NOTES...