XOCECO PH-42HK6S, Service Manual

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5
check if the white balance is normal, if not, set ALL COLOR to 0 and fine adjust according the
method of 3.3.1
b. connect VG-848 YPbPr signal to YPbPr terminal and input TIMING972(1080I/60Hz) PAT908
color bar(include back/white bars), 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 3.3.2
c. Input AV signal(PM5518,8 gray scale) to VIDEO terminal and check if the white balance is
normal, if not, set ALL COLOR to 0 and fine adjust according the method of 3.3.2.
Note: it can’t set back to 1 once ALL COLOR changes to 0.
4. Software upgrading:
Enter factory menu and select “OPTION”, set ISP to 1 and you can upgrade the software on line.
After upgrade, it needs to set ISP back to 0. if it can not display the image during the upgrading, join
J201 on main board, then perform the upgrading, when upgrade finish, disconnect J201 again.
5 Performance check
5.1 TV function
Enter searching menu
→ auto search, connect RF-TV terminal with central signal source and check
if the picture is normal, if there are channels be skipped. Check TXT and parental control function.
5.2 AV/S, YPbPr terminals
Input AV/S, YPbPr / YCbCr HD signals, check if it is normal.
5.3 VGA terminal
Insert VGA terminal, input VGA format signal of 640X480@60 Hz and check if the display is normal.
5.4 HDMI terminal
Insert HDMI terminal, input 640X480@60Hz signal, check if the display is normal. Check HDCP
function.
5.5 check sound channel
Check the speaker and earphone of each channel.
5.6 RS232 terminal
Insert the earphone wire to COM port, check the long-distance control function with special test
software.
5.7 other function check
Check the asleep timer, picture/sound mode, OSD, freeze/mute, stereo, etc.
5.8 presetting before ex-factory
Item Setting Item Setting Item Setting
PICTURE MODE STANDARD
COLOR MODE NORMAL
BALANCE
VOLUME
50
50
OSD LANGUAGE
OSD HPOSITION
English
50
AFC ON SLEEP TIMER OFF OSD VPOSITION 50
ZOOM FULL TTX LANGUAGE WEST OSD HALFTONE 50
SOUND MODE STANDARD OSD DURATION 15
AVC OFF