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Akai 25" / 29" SOLID STATE Color Television Receiver Service Manual
Akai 25" / 29" SOLID STATE Color Television Receiver Service Manual

Akai 25" / 29" SOLID STATE Color Television Receiver Service Manual

25" / 29" solid state color television receiver

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AKAI SERVICE MANUAL
This manual is the latest at the time of printing, and does not include the modification
which may be made after the printing, by the constant improvment of product.
Document : ___________
SM-37PM
Checked by :
25" / 29"
SOLID STATE
Color Television
Receiver
Date :
12-11-2001
(Zeng Shui Hua )
( PAL / SECAM VERSION )
MITSUBISHI I
Approved by :
2
C IC

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Summary of Contents for Akai 25" / 29" SOLID STATE Color Television Receiver

  • Page 1 AKAI SERVICE MANUAL 25" / 29" SOLID STATE Color Television Receiver ( PAL / SECAM VERSION ) MITSUBISHI I C IC This manual is the latest at the time of printing, and does not include the modification which may be made after the printing, by the constant improvment of product.
  • Page 2 SPECIFICATION SUPPLY VOLTAGE : AC220V 50Hz > + 10% / -20% PAL - SECAM - PAL - SECAM - SYSTEM : PAL - BG PAL - I BG / DK PAL - BG PAL - BG PAL - I / I BG / DK SECAM - L (UK)
  • Page 3 STANDARD UNIT ITEMS OF MEASUREMENT L - VHF < 57 dbuv VIDEO SENS. AT S/N 30db H - VHF < 57 dbuv < 60 dbuv < 42 dbuv SOUND SENS. AT S/N 30db L - VHF H - VHF < 42 dbuv <...
  • Page 4: Alignment Instruction

    ALIGNMENT INSTRUCTION I. PLEASE READ BEFORE ATTEMPTING SERVICE 1. Never disconnect any leads while receiver is in operation. 2. Disconnect all power before attempting any repairs. 3. Do not short any portion of the circuit while power is on. 4. For safety reasons, all parts replaced should be identical, ( for parts and part numbers see parts list ). 5.
  • Page 5 . SOUND TRACKING ALIGNMENT 1. Receive a gray scale pattern. 2. Connect a oscilloscope and monitor IC109 TDA3857 PIN 15 and Ground. 3. Adjust T101 to obtain the waveform Fig.6. 4. Conect a Voltage meten and monitor IC 104 TDA9801 PIN 15 and gorund. 5.
  • Page 6 2.5V+/-0.25V (DC) OV (DC) fig.7 SM-37PM P. 5...
  • Page 7 XII.SUB - BRIGHTNESS ALIGNMENT 1. Receive a grey scale pattern. 2. Press REMOTE picture button,. 3. Press REMOTE UP/DOWN and value (-) button set the brightness, contrast to minimun. 4. Press REMOTE sub bright button. 5. Press REMOTE value (+) (-) button adjust value to brightness bar can just be seen.
  • Page 8 SCANNING CENTRE (mm) SCANNING DISTRICT LIMIT (mm) SIZE POSITION SIZE (%) LIMIT (%) THAILAND 0 ~ -2 88 ~ 92 FRANCE 0 ~ +5 88 ~ 94 GERMANY 0 ~ +5 90 ~ 95 *GROUP A -5 ~ -1 88 ~ 94 *GROUP B -2 ~ +2 88 ~ 94...
  • Page 9 FACTORY MODE TABLE 1 ITEM REMARK VALUE O = TV Status S = Power Status POWER P = Last power status 1=PAL/NTSC.W/O EW 3=PAL/NTSC.W/EW TDA884X 2=PAL/SECAM/NTSC.W/O EW 4=PAL/SECAN/NTSC,W/EW 1 = DK/I 4 = BG/DK/I/M 2 = BG/DK 5 = I S.SYS 3 = DK/I/M 6 = BG...
  • Page 10 FACTORY MODE TABLE 2 VALUE ITEM REMARK ADJUST VALUE RANGE co-ff For CTI ON TV set Adjustment H-SHIFT 80-Bf For CTI OFF TV set Adjustment V-SLOPE 0-3f For TV set Adjustment V-AMPL 40-80 For TV set Adjustment S-CORRECT10N 80-Bf For TV set Adjustment V-SHIFT 0-3f For TV set Adjustment...
  • Page 11 FACTORY MODE TABLE 3 VALUE REMARK ITEM ADJUST VALUE RANGE DVD1 0-FF NON-Adjustable value CONTROL 2 DVD2 0-FF 25"set 12 NON-Adjustable value CONTROL 3 29"set 14 0-FF DVD3 CTI ON Set 9 CTI OFF Set e9 CONTROL 4 0 = OFF HOTEL LOCK 1 = ON SaB SHP...
  • Page 12: White Bal

    FACTORY MODE TABLE 4 VALUE ITEM ADJUST REMARK VALUE RANGE For TV Set Adjustment PT R 0-3f For TV Set Adjustment PT G 0-3f For TV Set Adjustment PT B 0-3f 0 = Picture WHITE BAL 1 = H-LINE SUb bri Setting SUB BRI 00-31 SM-37PM P.
  • Page 13 LOCATION Q101 Q102 0.15 Q103 Q104 Q105 Q106 Q108 Q109 Q110 Q111 Q113 Q114 Q115 Q116 Q117 Q118 Q119 Q301 13.6 14.3 Q401 Q402 13.8 Q403 Q404 Q405 21.6 Q701 -2.35 Q909 Q910 10.2 Q911 Q912 15.3 14.6 15.3 Q913 15.3 15.3 14.7...
  • Page 14 SYMBOL IC105/V IC102/V IC106/V IC103/V IC104/V IC107/V IC101/V PIN NO SM-37PM P. 13...
  • Page 15 SYMBOL IC402/V IC401/V IC403/V IC109/V IC301/V IC404/V IC108/V PIN NO 10.5 14.6 13.7 11.8 15.4 10.5 11.5 10.4 15.6 10.4 10.5 10.5 15.6 SM-37PM P. 14...
  • Page 16 SYMBOL IC01/V IC701/V IC501/V PIN NO SM-37PM P. 15...
  • Page 17 SM-37PM P. 16...