Panasonic TX-21GX20R-IRAN Service Manual Download Page 1

Power Source :

AC SINGLE 220-240V, 50/60 Hz

Power Consumption :

58W

Aerial Impedance :

75

unbalanced

Coaxial type

Receiving System :

17 Systems

Receiving Channels :

VHF

2-12 PAL / SECAM B,K1

0-12 PAL B (N ZEALAND)

1-9 PAL B (N ZEALAND)

1-12 PAL / SECAM D

1-12 NTSC M (JAPAN)

2-13 NTSC M (U.S.A)

UHF

21-69 PAL G,H,I / SECAM G.K.KI

28-69 PAL B (Australia)

13-57 PAL D,K

13-62 NTSC M (JAPAN)

14-69 NTSC M (U.S.A)

CATV

S1-S20 (OSCAR)

1-125 (U.S.A CATV)

C13-C49 (JAPAN)

Z1-Z37 (CHINA)

5A,9A (AUSTRALIA)

S21-S41 (HYPER)

Audio Terminal :

DVD

© 2007 Matsushita Electric Industrial Co., Ltd. All
rights

reserved.

Unauthorized

copying

and

distribution is a violation of law.

TX-21GX20R-IRAN

GL1 Chassis

Y

1.0 Vp-p, 75

PB

0.7 Vp-p, 75

PR

0.7 Vp-p, 75

AV 1, 2

Video In

1 Vp-p, 75

Audio In

Approx. 0.5V, 47k

Monitor Out

Video Out

1 Vp-p, 75

Audio Out

Approx. 0.5V, 1k

High Voltage :

27.5kV ±1.5

at zero beam current

Picture Tube :

A51LYZ395X62

50.5cm (21 inches)

Measured diagonally,

90° deflection

Audio Output :

5W + 5w = 10W

Dimensions :

Height : 472 mm

Width : 598 mm

Depth : 479 mm

Mass :

23 kg (Net Wt.)

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

Colour Television

Specifications

ORDER NO. MTV0701520CE

Summary of Contents for TX-21GX20R-IRAN

Page 1: ...erminal DVD 2007 Matsushita Electric Industrial Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law TX 21GX20R IRAN GL1 Chassis Y 1 0 Vp p 75 PB 0 7 Vp p 75 PR 0 7 V...

Page 2: ...e Hints 5 2 1 Service Position for E Board 5 2 2 Factory Mode Adjustment 5 2 3 Adjustment for White Balance 8 2 4 Adjustment for CRT CUT OFF 8 2 5 Adjustment Procedure 9 2 6 Adjustment 10 3 Conductor...

Page 3: ...d 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 4 M and...

Page 4: ...Rear Inputs AV1 V L R Front Inputs AV2 V L R YUV YUV CVBS4 CVBS2 IF V H V OUT H OUT R G B R G B CRT defl coil MONITOR OUT SDA SCL Audio Out Mon Out AUDIO AMP IC2302 IC601 UOC EEPROM IC1103 IC851 5V 8V...

Page 5: ...a Set Timer ON 30 minutes Press remote s RECALL panel s vol down key simultaneously to select service mode b CHK should appear on right side of TV screen After few seconds CHK 1 should appear on right...

Page 6: ...will be as follows f Press digit key 4 to move forward from Colour Sub Colour etc Press digit key 3 to move backward from Sub Colour Colour etc g Press volume up volume down to adjust setting h Press...

Page 7: ...ackward from G CUT R CUT n After selecting the required mode press volume up volume down to adjust required setting o Press digit key 5 to make the AKB OFF and H Line mode first time Press digit key 5...

Page 8: ...so that X 0 235 0 015 nit 3 Adjustment G CUT OFF so that Y 0 240 0 015 nit Adjustment of High Light 1 Adjustment Sub Bright so that Y 150 nit 2 Adjustment R Drive so that X 0 262 0 010 nit 3 Adjustme...

Page 9: ...ws TPA 114 1 8 0 2V TPA 115 1 8 0 2V TPA 13 8 0 0 4V 2 5 2 High Voltage Item preparation 1 Receive the crosshatch pattern 2 Set to 0 Beam Screen VR minimum Contrast minimum Adjustment procedure 1 Conn...

Page 10: ...d Fig 21 10 Re adjust the Low Light controls to their correct settings and make sure that a uniform white field is obtained 11 Tighten the clamp screw A in Fig 10 Convergence 1 Apply a crosshatch patt...

Page 11: ...marily Fig 1 Purity magnet Set purity magnet that 2 magnets are TOP POSITION VRS magnet Set purity magnet 2 magnets are HORIZONTAL POSITION 2 Adjustment a Receive that Cross Hatch pattern b Adjust V S...

Page 12: ...nd 3 shown in Fig 11 2 The wedges should be set 120 apart from each other 3 Be certain that three wedges are firmly fixed and the Deflection Yoke is tightly clamped in place Otherwise the Deflection Y...

Page 13: ...3 Conductor Views 13 TX 21GX20R IRAN...

Page 14: ...4 Schematic Diagram 14 TX 21GX20R IRAN...

Page 15: ...15 TX 21GX20R IRAN...

Page 16: ...4 1 A Board 4 1 1 A Board 1 5 1A 2A 3A 5A 4A 6A 7A 8A 9A 16 TX 21GX20R IRAN...

Page 17: ...4 1 2 A Board 2 5 1B 2B 4B 3B 7B 6B 5B 8B 9B 1A 2A 3A 5A 4A 6A 7A 8A 9A 17 TX 21GX20R IRAN...

Page 18: ...4 1 3 A Board 3 5 1C 2C 4C 3C 7C 6C 5C 8C 9C 1B 2B 4B 3B 7B 6B 5B 8B 9B 18 TX 21GX20R IRAN...

Page 19: ...4 1 4 A Board 4 5 1D 2D 5D 3D 7D 6D 4D 8D 9D 1C 2C 4C 3C 7C 6C 5C 8C 9C 19 TX 21GX20R IRAN...

Page 20: ...4 1 5 A Board 5 5 1D 2D 5D 3D 7D 6D 4D 8D 9D 20 TX 21GX20R IRAN...

Page 21: ...4 2 L Board 4 2 1 L Board 1 3 1A 2A 3A 4A 5A 21 TX 21GX20R IRAN...

Page 22: ...4 2 2 L Board 2 3 1B 2B 3B 4B 5B 6B 1A 2A 3A 4A 5A 22 TX 21GX20R IRAN...

Page 23: ...4 2 3 L Board 3 3 1B 2B 3B 4B 5B 6B 23 TX 21GX20R IRAN...

Page 24: ...5 Parts Locations 24 TX 21GX20R IRAN...

Page 25: ...6 Replacement Parts List 25 TX 21GX20R IRAN...

Page 26: ...ef No Part No Part Name Description Remarks C503 F1B2H821A025 C 820PF 500V C504 ECJ1VB1H681K C 680PF K 50V C506 F1A2H1000002 C 10PF 500V C511 ECA1VM101B E 100UF 35V C513 ECKW3D331JBP C 330PF J 2KV C51...

Page 27: ...005 DIODE D860 B0EBNT000022 DIODE D862 MTZJ2 0B ZENER DIODE D863 B0HAJL000003 DIODE Ref No Part No Part Name Description Remarks D864 B0BA03300030 DIODE D865 B0BA3R500008 DIODE D872 MAZ20820A0LS DIODE...

Page 28: ...M J 1 16W R3145 ERJ3GEYJ303 M 30KOHM J 1 16W R3259 ERJ3GEYJ750 M 75OHM J 1 16W R3279 ERJ3GEYJ750 M 75OHM J 1 16W R3289 ERJ3GEYJ750 M 75OHM J 1 16W Ref No Part No Part Name Description Remarks R351 ERJ...

Page 29: ...RANSFORMERS T501 ZTFP12507A FLYBACK TRANS T553 ETH19Y210BZ H DRIVE TRANS T801 ETS35AH1M6AC SWITCHING TRANS OTHERS A12 K1KA04AA0093 CONNECTOR A4 K1KA04AA0190 CONNECTOR A5 K1KA04AA0659 CONNECTOR A8 K1KA...

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