LG LST-3410A Service Manual page 33

8) Gemstar Test
Diagram for testing
RF Out put
NTSC
Modulato r
VBI In sert er( Norpak)
Vide o( CVBS)
Gen erat or
< Fig11 > Gemstar Test Menu
Moni to r for ch ecki ng te st mo de
Gems tar Glink -to - PC
VCR
Board
( Gemst ar F act ory
Play the tap e f or Lo op)
Connect ing PC RS232C
( We recommen d COM1)
< Fig12 > Gemstar Test Configuration
3-21
Seri al port f or
Syst em Debu g
( We re com m en d