akira CT-21DR9 Service Manual Download Page 6

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Model No: CT-21DR9A_21DR9CP_21DR9CP(SKD)_21DR9R_21DR9R(SKD)
Version 1.0

ALIGNMENT INSTRUCTION

(A) MAIN CHASSIS ALIGNMENT INSTRUCTION

1. Equipment requirement

1.1 Colour Television signal generator or Central TV signal generator
1.2 IF alignment – Philips Gen. 5418 or 5518

1.3 Scope 20 MHz – 2 channels types

1.4 Digital multi-meter with LED display 4 digits
1.5 Factory mode remote control unit

2. Channels setting required

Channel -1 Monoscope pattern PAL DK Music

Channel -7 Half Colour Bar pattern PAL I Modulation

Channel -12 Crosshatch pattern PAL BG Music
Channel -13 Picture PAL DK Music

Channel -24 Half Co lour Bar pattern PAL BG Modulation

Channel -56 Full Colour Bar pattern NTSC Modulation

3. Set-up Alignment

38 Mhz IF
Signal Gen

Scope 20Mhz

Digital Multi-
meter

C137 +

T101

C561+

Tuner

LA76810A-IC

GND

Summary of Contents for CT-21DR9

Page 1: ...C C Co o ol l lo o ou u ur r r T T TV V V S S Se e er r rv v vi i ic c ce e e M M Ma a an n nu u ua a al l l...

Page 2: ...21DR9CP_21DR9CP SKD _21DR9R_21DR9R SKD Version 1 0 2 M M Mo o od d de e el l l G G Gr r ro o ou u up p p C C CT T T 2 2 21 1 1D D DR R R9 9 9 CHASSIS SS1 MODEL CT 21DR9A CT 21DR9CP CT 21DR9CP SKD CT 2...

Page 3: ...CT 21DR9A_21DR9CP_21DR9CP SKD _21DR9R_21DR9R SKD Version 1 0 3 CONTENTS Specifications 4 X Ray Radiation Precaution 5 Safety Precaution 5 Product Safety Notice 5 Alignment Instructions 6 Schematic Di...

Page 4: ...P B CP PAL NTSC P B Picture Tube 54 cm 21 diagonal Ext Antenna 75 Ohm Coaxial Cable Ext In Out Audio Video in out Speakers 5W x 2 Volts A AC 100 260V 50 60Hz R N CP AC 150 260V 50 60Hz Power Consumpti...

Page 5: ...uring any dynamic service to avoid possible shock hazard 2 Always discharge the picture tube anode to the CRT conductive coating before handling the picture tube The picture tube is highly evacuated a...

Page 6: ...s 1 4 Digital multi meter with LED display 4 digits 1 5 Factory mode remote control unit 2 Channels setting required Channel 1 Monoscope pattern PAL DK Music Channel 7 Half Colour Bar pattern PAL I Mo...

Page 7: ...l Line and Size Adjustment 8 1 Receive crosshatch pattern use factory mode remote control to press factory mode key for adjustment Using CH keys for V Size and V Line selection 8 2 Use V keys to adjus...

Page 8: ...t over 9 0 Mohm if not reject Note Everyday work check the high pot Condition as 3100V 10 mA 5 sec are OK 14 Safety Check 14 1 High voltage checking Use high pot tester and set the tester to 3100V 10m...

Page 9: ...etting factory mode FACTORY MODE ADJUSTMENT TABLE Table 1 Selection Items OSD Display Setting Description 14 14 21 25 29 34 Reading limit 00 H PHASE Horizontal centre 7 9 7 6 0 31 01 NT PHASE NTSC cen...

Page 10: ...7 16 VOL FIL Sound trap filter control 1 1 1 0 3 17 VIF SYS SW VCO setting 1 0 0 0 0 7 18 VIDEO LEVEL Video output adjustment 7 7 7 0 7 19 FM LEVEL Sound output adjustment 16 16 16 0 31 20 POWER OPTI...

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