Press “INPUT”, “2”, “5”, ”8” and “0” in turn to enter factory menu; press “Channel up” and “Channel down” to select adjustment items, press “Volume up” and “Volume down” to adjust value items.
Press “MENU” repeatedly to exit.
Enter factory menu, select “OPTION”, “EEPROM” and “HOTEL OPTION” sub-menu, adjustment of
items to see table1.
3.2 Adjustment for AFT voltage and AGC voltage of IF channel in TV
3.2.1 IF AFT adjustment
Enter the factory menu and set IF VCO to 1, or press “INPUT”, “2”, “5”,”8”, “1” to enter VCO
adjust mode, adjust L109 to value 2.5V of TP105 (B face), then set IF VCO to 0.
3.2.2 IF AGC adjustment
Input 60DB RF signal (184.25MHz for Chinese, 175.25MHz for America) to RF terminal,
adjust RP101 to value 3V of TP102 (B face) and there should be no obvious snowy picture.
Increase the signal to 90dBV and it should be display normally and no obvious noise.
3.3 White balance adjustment
3.3.1 white balance adjustment of HDMI
a. Input VG-848 signal from HDMI: TIMING854(800* 600/60Hz) and eighth level gray-scale
signal of PAT920. Use color analyzer CA210 to adjust white balance.
b. Enter submenu of COLOR TEMP. Select 9300k of color temperature
c. Fixed value of B OFF, adjust R OFF and G OFF, let the color coordinate of the second level
be 285,293 and the brightness be about 3nit- 6nit. Fixed value of B GAIN, adjust R GAIN and G
GAIN, let the color coordinate of seventh level be 285,293. Adjustment R OFF, G OFF, R GAIN and
G GAIN repeatedly until the value of the two levels gray-scale be 285, 293.
3.3.2 VGA/YPBPR/AV white balance check and correction
a. Input VG-848 signal of VGA: TIMING854(800* 600/60Hz) (PATIERN:CROSS) and auto adjust to full screen, then input PAT948 black/white signal, enter factory menu ADC ADJ, select AUTOTUNE and wait for OK display. Input PAT920(8 gray levels), check if the white balance is normal, if not, enter COLOR TEMP menu, set ALL COLOR to 0 and fine adjust according the method of 3.3.1 c)
b. connect VG-848 signal of YPBPR to YPBPR terminal and input TIMING972(1080i/60HZ)
100% color bar of PAT976(include black/white bar), Enter submenu of ADC ADJ, Select AUTOTUNE and wait for OK display. Input PAT920(8 gray levels), check if the white balance is normal, if not, set ALL COLOR to 0 and fine adjust according the method of 3.3.1 c)
c. Input AV signal(PM5518, 8 gray levels, PAL for Chinese and NTSC for America) to VIDEO 1
terminal, check if the white balance is normal, if not, set ALL COLOR to 0 and fine adjust according
the method of 3.3.1 c)
Note: it can’t set back to 1 once ALL COLOR changes to 0.
Photo credit : mcrconnect.com
Sanyo LCD 22XR7 TV Service mode
4 Performance check
4.1 TV function
Enter searching menu → auto search,
if the picture is normal, if there are America).
4.2 AV/S, YPbPr terminals Input AV/S, YPbPr/YCbCr HD signal,
4.3 VGA terminal Insert VGA terminal, input VGA format
4.4 HDMI terminal Insert HDMI terminal, input signal of the HDCP is normal.
4.5 check sound channel Check the speaker and headphone 4.6 other function check Check the turn on/turn off timer, stereo/SAP(for America), magic picture.
4.7 presetting before ex-factory
Sanyo LCD 22XR7 TV Service mode
Before you entering Sanyo LCD 22XR7SN factory mode to change any value on the factory service mode, please write down all the original factory settings. tvservicemenu are not responsibility for any damage, data error and unwanted effect after using our service code and information on these page.
Original remote or universal remote control needed as a tools to program the factory mode (Recommended use the original remote control).
If the code above do not match to your television please browse another service code in sitemap page.