20
6. Unstable Picture
6-1. Horizontal
Unstable
picture
Is the
pulse of pin 26 of
the IC501
correct?
Trouble in IC501
or its ambient
circuit
Is the
pulse of pin 28 of
the IC201
correct?
Check IC501 and
its ambient circuit
No
No
No
Yes
Yes
Is the
input H.Sync
correct?
Check IC201 and
its ambient circuit
Yes
Trouble in Signal Cable
or 15P D-Sub Connector
5Vpp
Summary of Contents for 531X
Page 32: ...PCB LAYOUT 30 Main PCB Component Side...
Page 33: ...31 Main PCB Solder Side...
Page 34: ...32 CRT PCB Component Side CRT PCB Solder Side...
Page 35: ...33 SCHEMATIC DIAGRAM Power Connection Section...
Page 36: ...34 Control Vert out Section...
Page 37: ...35 Horizontal Section...
Page 38: ...36 Video Section...
Page 39: ...EXPLODED VIEW DIAGRAM 37...
