Friday, December 11, 2015

Sony KD-32NX100AEP How to enter service mode and led blinking codes

Contents of this article 

  • Led blinking code 
  • Service mode 
  • White Balance Adjustment 

Sony KD-32NX100AEP

The identification of errors within the AE-6D chassis is triggered in one of two ways :- 1: Busy or 2: Device failure to respond to IIC. In the event of one of these situations arising the software will first try to release the bus if busy (Failure to do so will report with a continuous
flashing LED) and then communicate with each device in turn to establish if a device is faulty. If a device is found to be faulty the relevant device number will be displayed through the LED (Series of flashes which must be counted).
Error Message
LED Code
N0  error
OCP ( Over Current Protection )
OVP ( Over Voltage Protection )
Vertical Protection
Unstable AKB (check starts after 30 secs)
Horizontal Protection
Speaker Protection
I2C bus 0 error
M-B Tele-Text-Decoder
M -B ST24C32, NVM
J -B TDA9320, Main Colour Decoder
A-B CXA2150Q Backend
A-B MSP3410D, Sound Processor
N -B EMMA Digital Micro
External RAM

Focus Adjustment
1. Receive a television broadcast signal.
2. Normalize the picture setting.
3. Adjust the focus control located on the flyback transformer to obtain the best focus at the centre of the screen. Bring only the centre area of the screen into focus, the magenta-ring appears on the screen. In this case, adjust the focus to optimize the screen uniformly.
Screen (G2), White Balance
G2 adjustment
1. Input a dot signal from the pattern generator.
2. Set the Picture, Brightness and Colour to minimum.
3. Apply 175V DC from an external power supply to the R,G and B cathodes of the CRT.
4. Whilst watching the picture, adjust the G2 control [SCREEN] located on the Flyback Transformer to the point just before the flyback return lines disappear.
White balance adjustment for TV mode
1. Input an all-white signal from the pattern generator.
2. Program the Remote Commander for operation in Service Mode.
3. Enter into the ‘Service Mode’ by pressing ‘VIDEO’, ‘VIDEO’ and ‘MENU’ ‘MENU’ on the Remote Commander.
4. Select ‘Device Register Setting’ > ‘Backend’ from the on screen menu display.
5. Set the ‘Contrast’ to MAX.
6. Set the ‘R-Drive’ to 25.
7. Adjust the ‘G-Drive’ and the ‘B-Drive’ so that the white balance becomes optimum.
8. Press the ‘OK’ button to write the data for each item.
9. Set the ‘Contrast’ to MIN.
10. Adjust the ‘G-Cutoff’, and the ‘R-Cutoff’ with the left and right buttons on the remote commander so that the white balance becomes optimum.
11. Press the ‘OK’ button to write the data for each item.
Programming the Remote Commander for Operation in Service Mode
1. Press the VCR/TV/DVD button until the TV LED lights.
2. Press and hold the yellow button for approx. 5 seconds until the TV LED flashes quickly.
3. Press 99999. All three LED’s should light.
The remote commander is now set to Service Mode.
4. To return the remote commander to normal operation mode repeat steps 1. and 2. then press 00000. All three LED’s should light.
The remote commander is now set to normal mode.
Setting the TV into Service Mode
1. Program the remote commander for operation in Service Mode as described above.
2. Turn on the TV main power switch.
3. Press the ‘VIDEO’ button on the remote commander twice.
‘TT ’ will appear in the upper right corner of the screen.
4. Press the ‘MENU’ button on the remote commander twice.
5. Move to the corresponding adjustment item using the up or down arrow buttons on the Remote Commander.
6. Press the right arrow button to enter into the required menu item.
7. Press the ‘Menu’ button on the Remote Commander to quit the Service Mode when all adjustments have been completed.
Model Setting
The menu contains a list with all the available models of this software to set up the TV set in an easy way. The selection of a model is setting data for its features and hardware resources which cannot be detected by the automatic power on H/W detection as well as a special model byte to get an unique model identification for models which cannot be differed by features and hardware resources (e.g. KD-32DX100U and KD-32NX100U). Before data is set, the user will be asked if he really wants to set a new model. If the user agrees, the destination setting menu is automatically shown.