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Summary of Contents for 21WHBN

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: ...2 Model No 21WHS3BN Version 1 0 M M Mo o od d de e el l l 2 2 21 1 1W W WH H HS S S3 3 3 B B BN N N C C Ch h ha a as s ss s si i is s s U U UO O OC C C T T TD D DA A A9 9 93 3 38 8 81 1 1...

Page 3: ...3BN Version 1 0 CONTENT SPECIFICATION 4 THE SURVEY 5 THE MAIN CHIPS INSTRUCTION 6 SIGNAL PROCESS 8 THE HORIZONTAL AND VERTICAL CIRCUIT 9 FACTORY MENU 11 APPENDIX 14 CIRCUIT DIAGRAM 18 EXPLODED VIEW WI...

Page 4: ...ube 21 inch RF PAL SECAM Color AV NTSC System Sound D K B G VHF Low channel VL 48 25 to 147 25 MHz VHF high channel VH 154 25 to 463 25 MHz Channel coverage UHF channel U 471 25 to 863 25 MHz IF 38MHz...

Page 5: ...5Q0765RT N501 2 CPU SIGNAL PROCESSER TDA9381 N301 3 Field driver LA78040 STV9302A N401 4 Sound processor TDA9859 N122 5 Sound driver AN7522N stereo N161 6 AV SWITCH TC4052BP N801 Video 7 5V Regulator...

Page 6: ...r connected to pin 17 is suitable for various signal conditions like strong weak and VCR signal This is achieved by switching of the loop filter time constant by changing the PHI 1 output current Pin1...

Page 7: ...can be selected Pin39 8V supply source Pin40 CVBS input Pin42 Y signal input Pin43 C signal input Pin44 Main audio output this pin is connected to the TDA9859 Pin45 YUV signal input control voltage 0...

Page 8: ...rcuit and AFT circuit The demodulated signal CVBS comes from the pin 38 of TDA9381 the sound signal comes from the pin 44 The internal CVBS signal needs norm identification then outputs from the pin 3...

Page 9: ...generated on the pin 21 and 22 and then enters the vertical output amplifier circuit The vertical output amplifier circuit is realized with the power amplifier IC LA78040 or STV9302A The STV9302A is...

Page 10: ...h is 16V The 16V can generate the 8V The fifth is 12V it generate the 5V and 3 3V by the special generators Fig 1 The power supplies illustration L501 L503 VD503 VD504 VD505 VD506 C507 N501 T501 N504...

Page 11: ...2 Unadjustable M1 AV CFG 0 9 3 Unadjustable M1 NTSC MX USA JAP USA Unadjustable M1 VIDEO OUT IF CVBS CVBS Unadjustable M1 PIN5 NTSC RGB RGB Unadjustable M1 PRO 0 3 0 Unadjustable M2 VISION IF 38 38 9M...

Page 12: ...e M4 YDLY AV 0 15 7 Adjustable M4 UOC VOL ON OFF OFF Adjustable M4 UOC VOL 0 63 45 Adjustable M4 CATHODE 0 15 7 Adjustable M5 OSD VPOS 0 63 53 Adjustable M5 OSD HPOS 0 48 9 Adjustable M5 WIDE 0 63 2 A...

Page 13: ...e M8 HSHIFT 0 63 31 Adjustable M8 RGB HSHIFT 0 63 31 Adjustable M8 RGB POS 0 48 31 Adjustable M9 BT 0 63 45 Adjustable M9 CT 0 63 48 Adjustable M9 SC ON OFF OFF Adjustable M9 RB 0 63 32 Adjustable M9...

Page 14: ...14 Model No 21WHS3BN Version 1 0 APPENDIX HEF4052B illustration...

Page 15: ...15 Model No 21WHS3BN Version 1 0 TDA9859 illustration 1...

Page 16: ...16 Model No 21WHS3BN Version 1 0 TDA9859 illustration 2...

Page 17: ...17 Model No 21WHS3BN Version 1 0 KA5Q0765RT illustration AN7522N illustration...

Page 18: ......

Page 19: ...19 Model No 21WHS3BN Version 1 0 EXPLODED VIEW WITH PART NAME...

Page 20: ......

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