akira LCT-32PBSTP, Service Manual

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Model No.: LCT-32PBSTP.doc
Version: 1.0
3 Unit adjustments
Method for entering factory menu: Press MENU → -/-- → 9 → 1 → 8 one by one, then enter
factory menu, press the SLEEP button to select adjustment page, exit factory menu to press
the MENU button.
4 EEPROM initialization
Enter the first page of factory menu, select “EEPROM INITIALIZE” to be “on”, after turn off the
unit, repeating turn on the unit is over.
5 white balance adjustment
Input PAL signal of 16-level gray-scale (TIMING969 PATTAN921) from VG848 to AV channel,
enter user menu, set color to 0, APL to “off”, enter factory menu white balance adjustment
page, select color temperature, fixed the GGAIN to 50H, adjust BGIAN and RGAIN to 400nits,
then the color coordinate to 284, 299. Fixed the BOFFSET to 50H, adjust GOFFSET and
ROFFSET to 5nits, then the color coordinate to 284, 299. Select cool tint, adjust color
coordinate to 270, 283. Select warm tint, adjust color coordinate to 313, 329.
6. Performance Inspections
6.1 TV function
Enter the search menu
→ auto search, connect RF-TV terminal to the central signal source,
check if there is station skipping.
6.2 AV/S input terminal
Input AV/S signal, check the picture and sound is normal
6.3 SCART terminal (note: check the SCART terminal, set display mode to AUTO)
6.3.1 Check SCART INPUT special function
6.3.1.1 SCART1 terminal function
a. After turn on the unit, connect the SCART1 to PM54200 signal generator, then the unit
auto select to SCART1 mode.
b. SCART signal generator sends CVBS signal to the unit, check if the image and sound
is normal. It sends image format (16:9 and 4:3) to the unit, check if the unit auto identify is
normal. Change SCART signal to RGB signal, check if the image and sound is normal, It
sends image format (16:9 and 4:3) to the unit, check the unit auto identify is normal. Select the
PIP mode, connect earphone cable, and check if the sound is normal.