Panasonic TC-21P50R Service Manual
Panasonic TC-21P50R Service Manual

Panasonic TC-21P50R Service Manual

Mx-8 chassi
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Specifications

Power Source:
Power Consumption:
Aerial Impedance:
Tuning System:
Receiving Channels:
VHF Band
2-12
0-12
1-9
1-12
1-12
2-13
UHF Band
21-69
21-69
28-69
13-57
13-62
14-69
CATV
S1-S20
S21-S41
1-125
5A, 9A
Z1-Z37
C13-C49
Intermediate Frequency:
Video
38.0 MHz
Sound
31.5 MHz (D, K)/32.0 MHz (I)
32.5 MHz (B, G)/33.5 MHz (M)
Colour
33.57 MHz (PAL)/33.6 MHz (SECAM)
33.75 MHz (SECAM)/34.42 MHz (NTSC)
AC 110V-240V, 50/60Hz
125W
7W (Stand-by condition)
75 unbalanced Coaxial
17 Systems
VoltageSynthesizer
Auto Search Tuning
100(Position)
(PAL/ SECAM - B, K1)
(PAL-B AUST.)
(PAL-B N.Z.)
(PAL/SECAM-D)
(NTSC-M JAPAN)
(NTSC-M U.S.A.)
(PAL-G, H, I)
(SECAM-G, K, K1)
(PAL-B AUST.)
(PAL-D, K)
(NTSC-M Japan)
(NTSC-M U.S.A.)
(OSCAR)
(HYPER)
(U.S.A. CATV)
(AUST.)
(CHINA)
(JAPAN)
TC-21P50R
MX-8 Chassis
Picture Tube:
High Voltage:
28.5(+0.7, -1.5) kV at zero beam current
Audio Output:
Internal Speaker
Headphones
Video/Audio Terminals:
AV1, 2, 3 IN
Video
S-Video
Audio
Monitor OUT
Video
Audio
Dimensions:
Height:
Width:
Depth:
Mass:
Accessories Supplied:
Design and Specifications are subject to change without notice.
Mass and dimensions shown are approximate.
ã
1999 Matsushita Electric Industrial Co.,Ltd.
All right reserved. Unauthorized copying and
distribution is a violation of law.
ORDER NO.ITD9910034C3
Colour Television
A51LSK655X
Type21, 90 deflection
15 W [7.5 W+7.5 W](10% THD)
3.5mm Plug
1 Vp-p 75
Y: 1.0 Vp-p 75
C: 0.3Vp-p 75
Approx. 0.5V 47k
1Vp-p 75
Approx. 0.5V 1k
471 mm
657.2 mm
472 mm
25.7 kg(Net)
Remote Controller x 1
"R6" Battery x 2
75 coaxial aerial plug

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Summary of Contents for Panasonic TC-21P50R

  • Page 1: Colour Television

    ORDER NO.ITD9910034C3 Colour Television TC-21P50R MX-8 Chassis Specifications Picture Tube: Power Source: AC 110V-240V, 50/60Hz A51LSK655X Type21, 90 deflection Power Consumption: High Voltage: 125W 28.5(+0.7, -1.5) kV at zero beam current 7W (Stand-by condition) Audio Output: Aerial Impedance: Internal Speaker 15 W [7.5 W+7.5 W](10% THD)
  • Page 2                              ! "    #     $ % #    &' #( )" *%" +    , )  -"     + -"     . - 2 -...
  • Page 3: Safety Precautions

    Safety Precautions 2. Turn on the receiver’s power switch. General Guide power-on 1. It is advisable to insert an isolation transformer in the AC supply before servicing a hot chassis. Isolation T ransformer 3. Measure the resistance value, with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on the receiver, such as screw heads, aerials, connectors, control shafts, etc.
  • Page 4 X-Radiation MEMO Warning : 1. The potential sources of X-Radiation in TV sets are the High Voltage section and the picture tube. 2. When using a picture tube test jig for service, ensure that jig is capable of handling 29.2kV without causing X- Radiation.
  • Page 5 Location of Controls and Circuit Boards Service Position for Main Board (A-Board) Remove 7 Screws Pull out Main Chassis and stand it. A-Board Location of Control FRONT Board Name Function A-Board Main G-Board Power and Audio H-Board Rear AV L-Board X-Board Pincushion - 5 -...
  • Page 6: Service Hints

    Service Hints Hotel Mode Purpose 1. At Hotels, this Mode prevent customer from changing the TV preset data, such as Channel preset data. Note : This Mode is useful for hotel, you should not get into " Hotel Mode" with Normal use. Operation 1.
  • Page 7: Market Mode Function

    Market Mode Function Outline : MPU controls the functions switching for each IICs through IIC bus in MX-8 chassis. The following setting and adjust- ment can be adjusted by remote control in Market Mode. 1.Selection of Market Mode Adjust VOLUME “zero” and set OFF TIMER Button [ ] (turn on the timer) Then, simultaneously press the RECALL [ ] Button on the remote control and the VOLUME DOWN button [ - ] on the TV...
  • Page 8 Adj. Range & Fixed [( ) Items mark] Data COLOUR SYS Colour system SOUND SYS Sound system PANA DISPLAY ON/ OFF Panasonic display on/off TEXT Text contrast SASO ON/ OFF SASO on/off Geomagnetic STEREO ON/ OFF Stereo on/off ON/ OFF...
  • Page 9 Pincushion Adjustment Mode (CHK3) Average Data Display Adj. Range & Fixed [( ) Items mark] Data 50 V-HEIGHT 00H-7FH Vertical Height (50Hz) 60 V-HEIGHT 00H-7FH Vertical Height (60Hz) PARABOLA 00H-3FH Parabola H-WIDTH 00H-3FH Horizontal Width 50 VS CORRECT 00H-3FH Vertical S Curve Correction (50Hz) 60 VS CORRECT 00H-3FH Vertical S Curve Correction (60Hz)
  • Page 10 Pincushion Adjustment (CHK3) DOWN 50Hz/60Hz V-HEIGHT PARABOLA H-WIDTH 50Hz/60Hz V-S CORRECT V-LINEAR TRAPEZOID EW-COENER1 EW-COENER2 50Hz H-CENTER V-CENTER - 10 -...
  • Page 11: Adjustment Procedure

    Adjustment Procedure Item / Preparation Adjustment Procedure B Voltage 1. Confirm that the indicated test points for the specified voltage: 1. Operate the TV set. TPA140 : 115.0 ± 2.0 V TPA12 : 12.0 ± 1.0 V 2. Set controls : TPA05 : 5.0 ±...
  • Page 12 Item / Preparation Adjustment Procedure NTSC SUB-TINT 1. Adjust Sub-NTSC-TINT, so that levels of NO.2, NO.3, NO4 (Fig.1) 1. Connect oscilloscope probe to TPA40 (R OUT). become Fig,2. 2. Input Rainbow-Pattern (3.58MHz NTSC) to VIDEO-IN terminal, and set AV mode by TV/AV select button.
  • Page 13 VRS Adjustment VRS Adjustment 1. Receive a colour bar signal, and operate the TV set more than 15 minutes. 2. Set the 2 pole (purity magnets), the VRS magnets, 4 pole and 6 pole magnets (Static convergence magnets) so that they are uncompensated. 3.
  • Page 14 Before Colour Purity, Convergence and White Balance adjustments are attempted, V. Center, V. Height, H. Width, H. Center and Focus adjustments must be completed.      %             $!                         $%  "      !       " "!      $%&    *  "!      &          "...
  • Page 15 DY Fixing 1. Wedge (1) shown in should be fixed within a range of 120° to the left of the vertical line as shown. 2. After inserting wedge (1), insert wedges (2) and (3). The wedges should be set 120° apart from each other. Wedge (1) Wedge (2) 3.
  • Page 16         TMM7468-1 Sky Blue Pink 45˚ TMM7468-1 (2) Sky Blue Pink TMME015 Without 30mm or TMM6463-1 To DY TMM7468-1 Within 30mm 0~20mm To GND White White CRT Corner Clamper D810 TZWXJ02ND2P SP Lead D813 TSXA154 AC Cord Clamper To CY - 16 -...
  • Page 17      99 70/747347(70'7:7$'7$#7$    "   CLAMPER LEAD [G10] SP (L) LEAD [G10] SP (R) LEAD Focus SCREEN L3-X23 G6 (AC Cord) G5-A5 L1-A41 : Wind up second times         "     $   "    /* !         & + - 17 -...
  • Page 18: Conductor Views

    Conductor Views PARTS LOCATION G-BOARD IC1051 IC2301 IC2302 IC2601 TRANSISTOR Q1051 Q1121 Q2190 Q2301 Q2302 Q2601 ADDRESS INFORMATION G-BOARD TNP4G120AE - 19 -...
  • Page 19 A-BOARD TNP4G104AW G-BOARD / A-BOARD - 20 -...
  • Page 20 PARTS LOCATION H-BOARD Q3070 Q5517 Q5545 Q3071 Q5518 Q5550 IC2101 Q3072 Q5519 Q5551 IC2102 Q3073 Q5590 Q5520 IC2103 Q3074 Q5521 Q5591 IC3001 Q3120 Q5522 Q5592 IC5501 Q3121 Q5529 Q5630 IC5502 Q3122 Q5530 Q5632 Q5501 Q5531 TRANSISTOR Q5502 Q5537 Q3001 Q5503 Q5538 Q3002 Q5504...
  • Page 21 PARTS LOCATION L-BOARD IC701 TRANSISTOR Q541 Q701 Q702 Q750 ADDRESS INFORMATION X-BOARD TNP4G108AJ L-BOARD TNPA1346AE PARTS LOCATION L-BOARD IC351 TRANSISTOR Q357 Q369 Q951 Q952 Q953 Q954 Q955 Q956 Q957 Q958 Q961 Q962 TPL1 TPL2 TPL3 TPL4 TPL5 TPL6 TPL7 ADDRESS INFORMATION H-BOARD /X, L-BOARD - 22 -...
  • Page 22    Remote Control Transmitter TNQE214 Important Safety Notice D1002 TP5 TP6 Components identified by mark have special characteristics important for safety. 2.2 - 3.5V When replacing any of these components, use only manufacture's specified parts. Notes: D1003 1. Resistor POD2 POD1 R1001 All resistors are cabon 1/4W resistor, unless marked as follows:...
  • Page 23 Schmatic Diagram, Remote Control/G-BOARD - 24 -...
  • Page 24 - 25 -...
  • Page 25 G-BOARD/A-BOARD - 26 -...
  • Page 26 - 27 -...
  • Page 27 Audio Processor AV SW A-BOARD/H-BOARD - 28 -...
  • Page 28 - 29 -...
  • Page 29 - 30 -...
  • Page 30 - 31 -...
  • Page 31 PARTS LOCATION & MECHANICAL REPLACEMENT PARTS LIST Note:The number on mechanical parts indicates Ref. No. Mechanical Replacement Parts List. L-BOARD X-BOARD A-BOARD H-BOARD G-BOARD - 32 -...
  • Page 32 2 EASG4FP10C2 SPEAKER 3 EAS12D157A2 SPEAKER 4 ETC35C65NA CONVERGENCE YOKE 5 KDY3NWA35F DEFLECTION YOKE TBLG3020 RUBBER (BOTTOM) 7 TBMA060 PANASONIC BADGE 8 TBXA22601 POWER BOTTON 9 TEK6940 DOOR SWITCH TESA031 SPRING 10 TES1603 COIL SPRING 28 TES4G204 SPRING (POWER SW)
  • Page 33                                                                                                                         !   "#  $%& $%& $ '"()!*+ # !**,-./)!0+1 $#,2!.!*342 **!52 4(*6             # &#...
  • Page 34 Ref. No Part No. Part Name & Description Pcs. Remarks Ref. No Part No. Part Name & Description Pcs. Remarks RTL TNPA1346AE CIRCUIT BOARD L C669,70 ECEA1EN4R7U 4.7UF RTL TNP4G106AP CIRCUIT BOARD H C685 ECEA1HN470U 47UF RTL TNP4G108AJ CIRCUIT BOARD X C686 ECJ2VF1H104Z 0.1UF RTL TNP4G120AE...
  • Page 35 Ref. No Part No. Part Name & Description Pcs. Remarks Ref. No Part No. Part Name & Description Pcs. Remarks C2304,05 ECA1HM330 33UF D458 1SS254 DIODE C2306 ECA1VM470 47UF D460 1SS254 DIODE C2307 ECA1VHG332 3300UF D463-65 MA4390 ZENER DIODE C2308 ECA1CM101 100UF D515 TVSEU2 DIODE...
  • Page 36 Ref. No Part No. Part Name & Description Pcs. Remarks Ref. No Part No. Part Name & Description Pcs. Remarks JS012 ERJ6GEY0R00 0 OHM J 1/10W Q5511 2SD601A TRANSISTOR JS38 ERJ6GEY0R00 0 OHM J 1/10W Q5515 2SD601A TRANSISTOR JS617-20 ERJ6GEY0R00 0 OHM J 1/10W Q5516 2SB709A...
  • Page 37 Ref. No Part No. Part Name & Description Pcs. Remarks Ref. No Part No. Part Name & Description Pcs. Remarks R634 ERJ6GEYJ151 150 OHM J 1/10W R1102,03 ERJ6GEYJ101 100 OHM J 1/10W R635 ERJ6GEYJ274 270KOHM J 1/10W R1104 ERJ6ENF1002 10KOHM 1/10W R647 ERJ6GEYJ155 1.5MOHM...
  • Page 38 Ref. No Part No. Part Name & Description Pcs. Remarks Ref. No Part No. Part Name & Description Pcs. Remarks R3100 ERJ6GEYJ102 1KOHM J 1/10W R5665 ERJ6GEYJ101 100 OHM J 1/10W R3101 ERJ6GEYJ182 1.8KOHM J 1/10W R5666 ERJ6GEYJ331 330 OHM J 1/10W R3102 ERJ6GEYJ103 10KOHM...

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