NO
YES
YES
NO
NO
YES
NO
YES
NO
YES
-18-
S-1800M10
Nothing appears on the screen when powered.
Replace the fuse
Is fuse in Monitor portion OK?
Is fuse OK after new fuse
replacement?
Are 5Volt at J5-No.1 and 5Volt at
J5-No.3 present in the power
supply board?
Are the 5V and 12V lines on the
power supply board normal when J13
on the main board is removed?
Are the waveforms of V-SYNC,
H-SYNC and RGB at J15 in the
main PCB normal?
LCD UNIT
MAIN PCB
POWER SUPPLY
PCB
RGB:
R2〜R5
G2〜G5
B2〜B5
Summary of Contents for S-1800H80/180
Page 44: ...N o 6 8 8 A...
Page 46: ......
Page 48: ......
Page 50: ...NO 748 H SYNC CH1 J15 3pin GND V SYNC CH2 J15 4pin GND...
Page 53: ......
Page 55: ...NO 654 FRQ CH1 FRQ GND P...
Page 64: ......
Page 67: ......
Page 69: ......
Page 70: ...180kHz HULL UNIT CIRCUIT DIAGRAM WAVE FORMS 180 kHz...
Page 73: ......
Page 75: ......
Page 81: ...70V...
Page 83: ...NO 703 CH1 FRQ GND P...
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Page 119: ...HULL UNIT ASSEMBLY DRAWING...