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Aiwa TV-C1421, Service Manual

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SERVICE  MANUAL

DA

TA

COLOR TELEVISION

TV-C1421

TV-C1422

KE, KER

SHR

S/M Code No. 09-01A-447-4R1

REVISION

•

This Service Manual is the "Revision Publishing" and replaces "Simple Manual"

  of TV-C1421 (KE, KER) and TV-C1422 (SHR), (S/M Code No. 09-01A-447-4T1).

Summary of Contents for TV-C1421

Page 1: ...COLOR TELEVISION TV C1421 TV C1422 KE KER SHR S M Code No 09 01A 447 4R1 REVISION This Service Manual is the Revision Publishing and replaces Simple Manual of TV C1421 KE KER and TV C1422 SHR S M Cod...

Page 2: ...Vrms 33k ohms Audio Output 0 5 Vrms less than 2 2k ohms Speakers 50 x 120 mm 2 2 x 43 4 in Operating Voltage 110 V 240 V AC 50 60 Hz Power Consumption 55W Earphone Jack Monaural mini jack Operating Te...

Page 3: ...the followings board The inside wiring is designed not to get close to the pyrogenic parts and high voltage parts Therefore put these parts in the original positions 5 Take care of the cathode ray tu...

Page 4: ...an accident Do not turn the anode cap 3 If the anode cap is turned in the direction of its circumference the hook is likely to come off 2 2 Anode Cap Removal Discharge the anode voltage See Figure 2...

Page 5: ...stalling it Never re use the hook when it has been deformed 1 If the anode cap is turned after it is installed it may come off Therefore arrange the high voltage cable before attaching the anode cap S...

Page 6: ...could turn and cause an installation defect 4 Turn over the rubber cap symmetrically on the left and right See Figure 3 4 Caution Take great care not to damage the anode cap Figure 3 3 5 Fit your fore...

Page 7: ...cap turned over and visually check that the hook is engaged securely 9 Release your hand from the rubber cap of the anode cap Caution Cover the anode cap so that it does not lift 10 Hold the skirt of...

Page 8: ...2 Remove connector CN802 3 Remove connector CN801 4 Pull out the MAIN C B in the direction of the arrow 2 See Figure 4 1 1 2 Figure 4 1 CN903 CN904 NK C B CN801 CN401 Speakers CN802 Power cord Front...

Page 9: ...E 47 16 SMG C320 87 A12 087 080 CAP E 1 50 SMG C324 87 A12 066 080 CAP E 47 16 SMG C326 87 012 195 080 C CAP U 100P 50 C327 87 012 195 080 C CAP U 100P 50 C328 87 012 195 080 C CAP U 100P 50 C331 87 0...

Page 10: ...80 COIL 10UH J SP02 SHR L830 87 A50 466 010 COIL 390UH CRCH 106 LF801 87 JB8 651 010 FLTR LINE SS24H K15070 PR830 87 A90 090 080 PROTECTOR 1 5A 491SERIES 60V PR831 87 A90 094 080 PROTECTOR 4A 491SERIE...

Page 11: ...125 3216 5 5 5 CJ CJ CJ Form L W t 1 6 0 8 0 45 2 1 25 0 45 3 2 1 6 108 118 128 A A CHIP RESISTOR PART CODE 0 55 Resistor Code Dimensions mm Symbol 1 16W 1005 5 CJ 1 0 0 5 0 35 104 L t W TRANSISTOR IL...

Page 12: ...12 WIRING 1 MAIN 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H I J K L M N O P Q R S T U...

Page 13: ...13 WIRING 2 NK 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 A B C D E F G H I J K L M N O P Q R S T U...

Page 14: ...14 SCHEMATIC DIAGRAM MAIN NK...

Page 15: ...15 IC BLOCK DIAGRAM...

Page 16: ...rol loop 18 A GND GND analog TV processor 19 BANDGAP Bandgap decoupling 20 AVL AVL Automatic Volume Levelling 21 V DR Vertical drive 22 V DR Vertical drive 23 PIF I IF input 24 PIF I IF input 25 IREF...

Page 17: ...K I Black current input vertical guard 51 R OUT O Red output 52 G OUT O Green output 53 B OUT O Blue output 54 3 3VDDA VCC 3 3V 55 VPE GND GND 56 3 3VDDC VCC 3 3 V 57 XGND GND crystal oscillator 58 XI...

Page 18: ...00 mV div 10 ms div IC301 PIN 22 V DR 200 mV div 10 ms div IC301 PIN 26 VSAW 1 V div 10 ms div 1 2 3 4 IC301 PIN 28 AU DEEM 1 V div 10ms div IC301 PIN 33 HOUT 1 V div 50 s div IC301 PIN 34 SAND 2V div...

Page 19: ...s div IC301 PIN 42 CVBS Y 500 mV div 20 s div IC301 PIN 44 AUDIO OUT 500 mV div 2 ms div 9 10 11 12 IC801 PIN 3 CTRL 500 mV div 5 s div IC801 PIN 4 DEMAG 500 mV div 5 s div IC801 PIN 5 SENCE 500 mV d...

Page 20: ...20 IC801 PIN 8 DROIN 50 V div 2 s div TUT101 PIN11 IF1 200 mV div 50 s div 17 18 17 18...

Page 21: ...0 0 12 0 0 13 2 29 0 63 PIN NO STD STANDBY 1 0 0 2 0 0 3 0 0 4 0 0 5 4 92 4 92 6 4 92 4 92 7 0 61 0 8 4 92 4 92 IC1 M24C04 WMN6T PIN NO STD STANDBY 14 7 75 0 15 4 96 0 16 2 72 0 20 17 3 88 0 18 0 0 1...

Page 22: ...93 64 4 90 4 90 PIN NO STD STANDBY 1 0 2 48 2 0 0 3 6 48 4 82 IC830 HA17431VP PIN NO STD STANDBY 1 15 49 13 41 2 0 0 3 1 27 1 40 4 0 19 0 5 0 0 6 1 40 0 7 0 0 8 328 334 IC801 TEA1507P PIN NO STD STAND...

Page 23: ...0 Q 102 SHR ONLY B 1 89 1 89 C 0 63 0 63 E 0 0 Q 301 B 4 65 5 51 C 0 0 E 2 55 0 20 Q 401 B 1 96 1 69 C 2 58 0 E 2 48 0 PIN NAME STD STANDBY Q 501 B 0 36 0 42 C 0 31 0 31 E 0 0 Q 602 B 0 0 C 68 60 114...

Page 24: ...2 0 63 C 2 26 0 E 7 77 0 63 Q 719 B 1 89 0 C 7 22 0 63 E 1 34 0 Q 802 B 0 63 0 C 0 7 87 E 0 0 PIN NAME STD STANDBY Q 803 B 7 18 7 87 C 7 81 0 63 E 7 94 7 95 Q 805 B 3 34 3 34 C 0 0 E 3 34 3 34 Q 839 B...

Page 25: ...of about 0 3 V with flat envelope Confirm that ratio of the burst signal amplitude and the red signal amplitude is 0 30 0 66 If the output signal does not conform with the specifications calibrate the...

Page 26: ...wise looking from the CRT s back screen and disengage Be careful not to loose the lock ring too much If the magnet assembly has become shifted during adjustments secure it to the position in Fig 1 4 3...

Page 27: ...king at the screen adjust the tilt of the deflecting yoke and tighten the DY lock screw 8 Shift the magnet assembly to the front toward the CRT funnel stop movement before the adjustment position and...

Page 28: ...ke and the surface of the CRT funnel in order to secure the deflecting yoke Refer to Fig 1 9 Position of wedge Fig 1 9 Wedge Wedge Wedge In Fig 1 8 the two 6 pole magnets are stacked together so as to...

Page 29: ...stment Menu Screen 5 1 Adjustment of screen size and screen position PAL 1 1 H POS 50 1 2 V POS 50 1 3 V SIZE 50 1 4 V LINEA 50 1 5 OSD H 50 1 6 OSD V 50 5 2 Adjustment of screen size and screen posit...

Page 30: ...ng two places as shown in the diagram below so that the hidden keys become easily accessible Hidden keys FINISH When FINISH key found on the jig remote controller is pressed the integrating time of ag...

Page 31: ...OK or DN 3 Operating Adjustment Mode 1 Press SLEEP key once at the aging mode to display MENU 1 of the adjustment mode 2 Press the Channel key to switch between the menus from MENU 1 to MENU 12 3 Pre...

Page 32: ...GHT BRIGHT center value 20H 3 CONT CONTRAST center value 20H 4 TINT TINT center value 20H 5 SHARP PEAKING center value 3FH 6 CD LVL Cathode drive level 04H 7 Y SECAM SECAM Y delay 06H 8 Y NTSC NTSC Y...

Page 33: ...7 GAIN73 GAIN TDA9873 0 REDUCE GA 01H IN 1 NORMAL GAIN 8 GAIN ST STEREO GAIN 20H 9 AVL UOC UOC internal AUTO VOLUME LEVEL 00H 10 DEF VOL Volume level of factory setting 10H MENU 10 No MENU Details 1...

Page 34: ...device setting Adjustment menu number MENU1 1 Input signal PAL mono scope SPEC Right and left horizontal scales are equal MODE VIDEO 1 Input LION mark signal with a mono scope 2 Use the VOLUME or key...

Page 35: ...es within the range specified in SPEC Fig 1 5 TV Measuring device setting V SIZE 50 simple adjustment Adjustment menu number MENU1 3 Input signal PAL CONVERGENCE SPEC The number of boxes 13 to 13 25 M...

Page 36: ...ark and B the right end to mark Fig 1 9 1 6 OSD V 50 Adjustment of PAL OSD vertical position TV Measuring device setting Adjustment menu number MENU1 5 Input signal PAL CONVERGENCE SPEC A B MODE VIDEO...

Page 37: ...appearing in the right and left edges of the mono scope screen with the CRT center mark Fig 2 3 TV Measuring device setting V POS 60 simple adjustment Adjustment menu number MENU2 2 Input signal NTSC...

Page 38: ...adjustment check V POS 60 PAGE 2 2 and V SIZE 60 PAGE 2 3 Adjust irregularity if found TV Measuring device setting V LINEA 60 simple adjustment Adjustment menu number MENU2 4 Input signal NTSC cross h...

Page 39: ...ghtness 4 1 SCREEN Adjustment of screen TV Measuring device setting Adjustment menu number MENU3 2 Input signal PAL color bar FULLFIELD WHITE 75 Adjustment point T601 FBT lower SFR SPEC WBC 04H HBC 02...

Page 40: ...U5 5 B GAIN Input signal White luster WHITE 100 SPEC WHITE MODE VIDEO Apply aging for at least 20 minutes before adjustment Repeat the whole steps 1 to 6 several times to complete this adjustment Fig...

Page 41: ...AL EXPLODED VIEW 1 1 TV C1421 KEJ1C KERJ74M TV C1422 SHRJ1C FileName TVC1421 EPS 13 8 20 BJB P C C PWB 12 11 9 10 D D D D E 13 F 14 15 16 PWB G G G G G 8 8 7 B B A 17 17 HLDR LED 2 3 1 5 4 6 WIRE ASSY...

Page 42: ...010 HLDR SF 2001 HV CABLE 16 8B JAH 007 010 BTN POWER 2 17 84 LB3 692 010 CONN ASSY 4P SP 1 A 87 067 680 010 BVI T3 3 10 B 87 078 070 010 BVIT3B 4 12 C 87 078 203 110 S SCREW W5 25 D 87 067 766 010 BV...

Page 43: ...2 11 IKENOHATA 1 CHOME TAITO KU TOKYO 110 JAPAN TEL 03 3827 3111 Printed in Singapore 2000068 9301944 921338...

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