LG LST-3100A Service Manual page 37

START
Is DVI cable connected?
YES
Is Display Format front pane DVI side?
YES
Is The emitter of Q201 high volt ?
YES
Is IC206(11) high volt ?
YES
Is 480P picture OK?
YES
Are 720P & 1080I picture OK?
YES
END
NO
Connect DVI cable
NO
Change to DVI side
NO
Use other DVI cable or Turn on the moni-
tor that is connected with DVI cable.
NO
Change the DVI chip
NO
Check IC206(57(IDCK+), 2(DE),
4(HSYNC), 5(VSYNC)) The IDCK_
clock shall be 27MHz. Refer to Fig. 1
NO
Check IC206(57(IDCK+), 2(DE), 4(HSYNC),
5(VSYNC)) The IDCK_ clock shall be
74.25MHz. Refer to Fig2, Fig3 and Fig4.
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