Service Manual
44
7. Backlight on,key function and LED accurate indication ok
but no picture
Backlight on,key function and LED
accurate indication ok but no picture
Is there R.G.B signal in
U105 #28, #25 #23?
Is the panel enable
signal at 73# of
U105,if no check
Q104 circuit or change
U105,if yes Check
Q101 circuit
Check DC 5.0V on
CN103#1, #2, #3
Are there data output on
U105#77~#86,
#91~#100
Change U105
END
Check VGA input
circuit (D105, D1
D103 R114 R115 R116
C113 C114 C115)
YES
YES
VGA
YES
NO
NO
NO
IS the display is white and cannot
display OSD when press key?
Yes
Is the FFC cable
inserting ok,if no
reinsert else
change FFC cable
No
Is display selftest picture at
VGA mode or HDMI mode?
HDMI
Is there HDMI signal in U105
#9, #10,#12,#13,#15,#16,#18
#19?
YES
Check HDMI input circuit
(include R201~R208)
Содержание ST2010 - 20" LCD Monitor
Страница 1: ...Service Manual 0 Service Manual LCD Monitor ST2010 ...
Страница 20: ...Service Manual 19 ...
Страница 21: ...Service Manual 20 8 Key Parts Pin Assignments 8 1 U105 TSUMU58EDJ LF ...
Страница 22: ...Service Manual 21 ...
Страница 23: ...Service Manual 22 ...
Страница 24: ...Service Manual 23 ...
Страница 27: ...Service Manual 26 Chapter 4 Disassembly Assembly 1 Exploded Diagram ...
Страница 30: ...Service Manual 29 3 ST2010 Assembly Block ...
Страница 32: ...Service Manual 31 ...
Страница 60: ...Service Manual 59 Attachment 2 Schematic 1 Interface board schematic ...
Страница 68: ...Service Manual 67 power board schematic 1 ...
Страница 69: ...Service Manual 68 ...
Страница 70: ...Service Manual 69 ...
Страница 72: ...Service Manual 71 Attachment 3 PCB Layout Power inverter board Top Layer ...
Страница 73: ...Service Manual 72 Bottom Layer ...
Страница 74: ...Service Manual 73 I F board Top Layer Bottom Layer ...
Страница 75: ...Service Manual 74 Keypad ...
Страница 76: ...Service Manual 75 ...