Wednesday, April 08, 2015

POLAROID FLM3201 SERVICE MODE AND SOFTWARE UPGRADING

POLAROID FLM-3201 

LCD TV

SERVICE MODE AND SOFTWARE UPGRADING 

SERVICE MODE
Press “VOL+”, “MUTE” and “VIDEO” repeatedly to enter to factory mode
 press “ENTER” to select different items when the first line of each adjustment item just lights up.
Input VGA and DVI signal, then select the “mode” item; after that, you can press “enter” to select three kinds of color temperature namely 6500K, 9300K and 12000K.
Press “MENU” to exit FACTORY MODE .
Note: the white balance adjustment should be done under “nature” picture mode.
EEPROM initialization
Enter the first page of factory menu, select “clear eeprom” and then press “enter”, shut down the unit after “ok” appears.
VGA/DVI channel adjustment
Preset VGA channel mode
Input VGA signal (PATTERN 5: Final Test) of K-7253, select TIME301(640*350/70Hz), press
“AUTO” to do the auto adjustment until the screen is filled with picture.
ADC adjustment of VGA channel
Adjust ADC-gain to 15.
White balance adjustment VGA/DVI channel
Input K-7253 8 level gray-scale signal of TIME311 and PATTERN474, enter white balance adjustment menu; adjust the third and seventh levels using white balance. Select 6500k of “mode”, adjustment offset_R, offset_G and offset_B, let the color coordinate of the third level be 308 and 316 and its brightness be 16nit more or less. Adjust gain_R, gain_G and gain_B, let the color coordinate of seventh level be 308 and 316. Adjustment offset_R, offset_G, offset_B, gain_R, gain_G and gain_B repeatedly until the value of the two levels gray-scale be 308 and 316. Select 9300k of “mode”, adjustment offset_R,offset_G and offset_B,let the color coordinate of the third level be 285 and 290 and its brightness be 16nit more or less. Adjust gain_R,gain_G and gain_B, let the color coordinate of seventh level be 285 and 290.
Select 12000k of “mode”, adjustment offset_R, offset_G and offset_B, let the color coordinate of the third level be 270 and 283 and its brightness be 16nit more or less. Adjustment offset_R, offset_G, offset_B, gain_R, gain_G and gain_B repeatedly until the value of the two levels gray-scale be 270 and 283.
Note: gain_R, gain_G, gain_B is value not above 128 and let its value 128 at least.
Adjustment TV channel
Adjustment VCO, OPTION, sub-brightness and sub-contrast Input AV color bar signal (PM5518 COLOR BAR 100%) to VIDEO 1 terminal, enter the first page of factory menu, press “enter” selecting “auto color”, display “OK” after 2 seconds; then you can finish the VCO adjustment; set the value of “option” to 10, “Hor-width” to 32 and “s-bright” to 140 as well as S-contrast to 140. set the MaxVolume according to its product standard.
white balance adjustment of TV channel
Input AV signal (PM5518, NTSC system, 8 level gray-scale signal), enter adjustment menu of white balance, adjust the third level and seventh level using white balance. Adjust offset_R, offset_G and offset_B to let color coordinate of the third level be 270 and 275 and its brightness be about 21nit. fixate gain_B to 128, adjust gain_R, gain_G to color coordinate of the seventh level be 280 and 280. adjust offset_R, offset_G,offset_B, gain_R and gain_G, repeatedly using the same method until the value of the two levels gray-scale be the specified value.
white balance adjustment YPbPr channel
input YpbPr signal of K-7253 to YPbPr-1 terminal, input TIME380(480i) PATTERN471 8 level gray-scale signal, set the value of Hor-width to 23, Ver-width to 5, S-bright to 120 and S-contrast to 140.Enter adjustment menu of white balance, adjust the third level using white balancer. Adjust offset_R, offset_G and offset_B, to let color coordinate of the third level be 270 and 275 and its brightness be about 15nit. Input 8 level gray-scale signal of TIME392(480p), TIME394(720p) and TIME396(1080i) separately, repeat the above operations to let color coordinate of the third level be 270 and 275 and its brightness be about 15nit.
Performance check
TV function
Enter searching menu
auto search, connect RF-TV terminal with central signal source and check if there are channels be skipped
AV/S, YpbPr terminals
Input AV/S, HD signal, check if it is normal.
VGA terminal
Insert VGA terminal, input VGA format signal of 640 X 480@60 Hz, check if the display is normal. If interference exists, press the auto adjust button on remote control again and check if it is normal.
DVI terminal
Insert DVI terminal, input signal of 640 X 480@60 Hz signal and check if the display is normal.
Check sound channel
Check the speaker and headphone of each channel.
Method of software upgrading
Steps of software upgrading are as follows:
1. Select a serial connection wire and a VGA connection wire and then connect them by means of a patch panel;
2. Use a serial wire to connect the PC to the patch panel and set TV set to off state; Open the software upgrade file holder and double click.
FlashUpgraderNT (use under window 2000/XP/NT)
FlashUpgrader (use under window 98),
Based on the computer features, set up the serial port (COM Port). Select corresponding serial port (if it’s unable to FLASH WRITE, change to another port). Baud is selected to be 115200. Then select Reset Target After Download. Click FLASH pushbutton, it’s ready to run. For other settings, please refer to the Fig. Above (already defaulted by the system, normally no need to change). Switch on TV set the FLASH write program begins to run;
After FLASH write is over, push button “cancel” will become flash. Then shut the main power supply and it’s OK just switch it on again.
Note: Do not shut the power off or turn the TV set on during the FLASH write. Otherwise it may lead to no way for flash to rewrite.