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akira CT-29FS9 Series Service Manual

Chassis 5p60
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  • Page 2 CHASSIS: 5P60 MODEL: CT-29FS9An Model No: CT-29FS9An Version 1.0...

  • Page 3: Table Of Contents

    CONTENT SAFETY NOTICE ........................... 4 TECHNICAL SPECIFICATION ......................5 GENERAL SPECIFICATION ......................... 6 CHASSIS BLOCK DIAGRAM ....................... 7 CHASSIS WIRING DIAGRAM......................17 PBC BOARD ............................18 SERVICE ADJUSTMENT ........................21 MECHANICAL DISASSEMBLY......................30 SCHEMATIC DIAGRAM ........................32 THROUBLE SHOOTING CHART ....................... 34 Model No: CT-29FS9An Version 1.0...

  • Page 4: Safety Notice

    SAFETY NOTICE SAFETY PRECAUTIONS An isolation transformer should be connected in the power line between the receiver and the AC line when a service is performed on the primary of the converter transformer of the set. Comply with all caution and safety-related notes provided on the cabinet back, inside the cabinet, on the chassis or the picture tube.

  • Page 5: Technical Specification

    TECHNICAL SPECIFICATION FEATURES • Hyper-Band Tuner • 100-Channel Memories • NTSC Playback • Front or Side AV Input • Rear AV Input/Output • S-Video Input • On-Screen display • Sleep Timer • Auto Search/Store/Shut-off • Full Function Remote Control • 8W x 2 Speakers •...

  • Page 6: General Specification

    GENERAL SPECIFICATION POWER CONSUMPTION 150W MAX STANDBY POWER CONSUMPTION RECEIVER SYSTEM D/K; I; B/G; M COLOUR SYSTEM PAL/ SECAM / NTSC VISION INTERMEDIATE FREQUENCY 38.9MHz INTER-CARRIER FREQUENCY 4.5 MHz (M) 5.5 MHz (B/G) 6.0 MHz (I) 6.5 MHz (D/K) 5.85 MHz (NICAM B/G, D/K) 6.55 MHz (NICAM I) 5.74 MHz (GERMAN STEREO) CHROMA IF FREQUENCY PAL/NTSC...

  • Page 7: Chassis Block Diagram

    CHASSIS BLOCK DIAGRAM Model No: CT-29FS9An Version 1.0...
  • Page 8 IC 401 (UNIVERSAL HI-FI AUDIO PROCESSOR) TDA9859H IC605. IC606 <REGULATORS> L7800 SERIES REFERENCE VOLTAGE INPUT SERIES OUTPUT PASS ELEMENT CURRENT GENERATOR PROTECTION ERROR REFERENCE STARTING AMPLIFIER VOLTAGE CIRCUIT THERRMAL PROTECTION Model No: CT-29FS9An Version 1.0...
  • Page 9 IC 402 (SRS TRUBASS) NJM2192 AM Model No: CT-29FS9An Version 1.0...
  • Page 10 IC 401 (AV SWITCH W/IIC BUS CONTROL) M52797SP Model No: CT-29FS9An Version 1.0...
  • Page 11 IC 101 (SYSTEM TV SIGNAL PROCESSOR-TELETEXT) TDA93XXPS/N2/5I Model No: CT-29FS9An Version 1.0...
  • Page 12 IC 103 (DIGITAL TV SOUND DEMODULATOR / DECODER) TDA9874AH Model No: CT-29FS9An Version 1.0...
  • Page 13 IC 302 (VERTICAL DEFLECTION BOOSTER) (TDA4863AJ) IC 404(BTL AUDIO AMPLIFIER)(TDA8944J) Model No: CT-29FS9An Version 1.0...
  • Page 14 IC 803(MULTISTANDARD COMB FILTE) (TDA9181T) IC 802(HEF4052) Model No: CT-29FS9An Version 1.0...
  • Page 15 IC 601 <PHOTO TRANSISTOR> TLP621 TLP621 1:ANODE 2:CATHODE 3:EMITTER 4:COLLECTOT IC 604 <POWER SWITCH> KA5Q12XXRF Model No: CT-29FS9An Version 1.0...
  • Page 16 Transistor Mark N P N N P N P N P N P N P N P P N P N P N N P N N P N P N P P N P N P N P N P C5148 I N P U T I N P U T...

  • Page 17: Chassis Wiring Diagram

    CHASSIS WIRING DIAGRAM TO FRONT VIDEO IN CN 202 TO FRONT AUDIO IN TO KEYBOARD CN 203 CN 703 TO H501 CN 805 FROM CN801A CN 806 TO CN 706 TO CN 705 CN 701 FROM CN802A CN 706 CN401B FROM Cn805 CN 803 +H403...

  • Page 18: Pbc Board

    PBC BOARD Model No: CT-29FS9An Version 1.0...
  • Page 19 CAM350 PRO V 6.0 : Wed Jan 15 10:17:54 2003 - (Untitled) Model No: CT-29FS9An Version 1.0...
  • Page 20 SIDE FRONT AV & AV PCB TOP LAYER CONTROL PCB TOP LAYER 5800-D25TMY-01 Model No: CT-29FS9An Version 1.0...

  • Page 21: Service Adjustment

    SERVICE ADJUSTMENT Please notice the following before debug and equipment The main power is 90~260V/50/60Hz. Please be careful when you debug and equip. Don’t short any two soldering points, which should not be shorted and don’t touch any component, which should not be touched. Pls pull out plug before equipment.
  • Page 22 Complete machine general adjustment. Go to factory mode before warm up line. Method: Press key CLOCK, P.M., , TV SET will go to factory mode. Press key 0-9 to entering factory menu. Select the item by “PROG+” and “PROG-“ keys. Adjust by “VOL+”...
  • Page 23 Horizontal Center and EW adjustment (KEY 1) i. Received 50HZ monoscope PATTERN. Set TV standard status. Adjust 5HSH to obtain horizontal center at the center of CRT screen. ii. Receive 50HZ cross hatch pattern. Set TV standard status. Adjust 5EWW, 5PWW, 5UCR, 5LCR, 5PAR, 5BOW, 5EWT to obtain picture’s Horizontal redisplay ratio more than 90% in factory mode.
  • Page 24 RF. AGC adjustment (KEY 4) i. Receive 60dB RF signal. Connect Digital voltmeter positive terminal to tuner AGC terminal and negative terminal to GND. ii. Entering the AGC item in factory mode by the REMOTE CONTROL. Metod. Press key CLOCK, P.M. inturn, you can enter into factory mode, then press key “4”...
  • Page 25 Service items This appendix shows information about service items that are available. The table list all possible available service items with its. Model No: CT-29FS9An Version 1.0...
  • Page 26 Model No: CT-29FS9An Version 1.0...
  • Page 27 Model No: CT-29FS9An Version 1.0...
  • Page 28 Model No: CT-29FS9An Version 1.0...
  • Page 29 PURITY ADJUSTMENT Before color purity adjustment, warm up the TV set over 15 minutes and fully degauses. Receive pure white signal in AV status and set the TV receiver dynamic. Go to factory mod MENU2. After write down the values of R-BIAS and B-BIAS, set the values of R-BIAS and B-BIAS zero.

  • Page 30: Mechanical Disassembly

    MECHANICAL DISASSEMBLY Cabinet back removal Refer to figure 1, remove 10 screws. Pull off cabinet back and remove. Chassis removal Remove cabinet back. Discharge the picture tube anode (2 anode lead) to the dag coating (picture tube grounding lead). Disconnect Degaussing coil socket (KE), picture tube socket, Deflection yoke connector (KDY), speaker connectors (KL and KR) and 2 anode lead.
  • Page 31 Picture tube removal CAUTION: Do not disturb the deflection yoke or magnet assembly on the picture tube Neck. Care must be taken to keep these assemblies intact, unless picture tube is being replaced. Discharge the picture tube to the coating before handling the tube. Remove chassis, referring to chassis removal instructions.

  • Page 32: Schematic Diagram

    5P60 SCHEMATIC DIAGRAM CN003 M001 5.6K 3.3K 2.7K 1.5K 1.2K CON5 (38K) RR1 100 10u/16V RD11 LED001 R536 TUNER R538 XG6VS96A D503 SAW102 C139 R144 Q532 K9362M BA157 100uF 4.7K C160 5.0V 24C08 BF420 R136 R531 TUNER Q531 10nF IC102 n.c.
  • Page 33 Part no Description SKCM0025TM0110 CABINET COLOUR MATCH-METAL SILVER GREY #MS G001 SK100729TM0001 FRONTLINS (REMOTE CONTROL WINDOW) SK100729TM0001 FRONT LENS (LED WINDOW) SK100925TM0001 POWER KNOB-ELECTROPLATING SILVER (abs) SK100425TM0002 SIDE AV JACK BRACKET-DARK GREY #DG001(ABS) SK100829TM0001 CONTROL KEY KNOB-ELECTROPLATING SILVER (ABS) SK060125TM00W6 BACK LABEL FISHER TF25M2T W/PCBENG SK100225TM0003 BACK CABINET-DARK GREY #DG001(HIPS) 94V-0...

  • Page 34: Throuble Shooting Chart

    TYPICAL TROUBLE SHOOTING CHART BG SETTING Changeover sound system selection No BG selection, only BG selection O.K. but Dark or blue screen & No Pix DK/I/M selection Factory Menu BG System Other system mode Other system mode option not set also No Picture Normal Picture Short circuit IC101...
  • Page 35 Cannot search / tune station Check & ensure IC102 is 24108 and is not 24104 Short circuit IC101 Pin 38 & Pin 40 Can search/ tune and stored Cannot search/ tune station station Subsequent video selection Without snowy noise With snowy noise circuit malfunction spot spot...
  • Page 36 Picture Geometry Distortion Enter into Factory Mode and use RC adjust Menu. 1 parameter EWW, EWP. Are these adjustment effect changes of picture shape? No response Effect is slight but not obvious. Check IC301 and Check & replace Check & replace Readjust Main feedback path, C305, C301, D301 if...
  • Page 37 Repair precaution: Use isolating transformer and rubber for safety isolation. Obey operating procedure, according factory alignment explanation for parameter setup to ensure good function requirement and specification before leaving the factory. Components with safety mark should be replaced with what the original factory requires. To solder out the IC, irons should have good grounding to prevent static charge.

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