5 - 4
Failure Investigation for Electronic Parts The power is not turned on.
Change power switch
assemblies and power leads.
When the power cord is removed from the inlet and
the power lead is removed from the power PCB, is
the resistance between the inlet and the power lead
connector 1
Ω
or below when the switch is ON and
when it is OFF (check both terminals)?
N
Y
From the previous page
Change power PCB.
Y
Does the machine function normally when the
power PCB is replaced with a reliable one?
N
Change main PCB.
Y
Does the machine function normally when
the main PCB is replaced with a reliable one?
N
Change panel PCB.
Y
Does the machine function normally when the
panel PCB is replaced with a reliable one?
N
Change inverter PCB.
Y
Does the machine function normally when the
inverter PCB is replaced with a reliable one?
N
To the next page
From the previous page
Change leads on the panel.
N
Connect it properly.
N
Is lead on the panel properly
connected to connector CN4 on the
panel PCB?
Y
Is the resistance between each pin at both ends
1
Ω
or below when leads on the panel are removed
from the main PCB and the panel PCB?
Y
Содержание PR-600II
Страница 1: ......
Страница 2: ......
Страница 20: ...2 2 Main parts Main unit ...
Страница 33: ...2 15 Disassembly Feed unit Main unit ...
Страница 44: ...2 26 Needle thread unit Main unit ...
Страница 47: ...2 29 Disassembly Needle bar change unit Main unit ...
Страница 50: ...2 32 Thread wiper unit Main unit ...
Страница 54: ...2 36 Needle bar unit Main unit ...
Страница 60: ...2 42 Upper shaft unit Main unit ...
Страница 70: ...2 52 Lower shaft unit Main unit ...
Страница 73: ...2 55 Disassembly Power unit Main unit ...
Страница 78: ...2 60 Thread cut unit Main unit ...
Страница 82: ...2 64 Thread tension unit Main unit ...
Страница 91: ...2 73 Disassembly Operation panel Main unit ...
Страница 98: ...2 80 ...
Страница 100: ...3 2 Operation panel Main unit ...
Страница 108: ...3 10 Thread tension unit Main unit ...
Страница 118: ...3 20 Thread cut unit Main unit ...
Страница 122: ...3 24 Power unit Main unit ...
Страница 128: ...3 30 Lower shaft unit Main unit ...
Страница 132: ...3 34 Upper shaft unit Main unit ...
Страница 147: ...3 49 Assembly Needle bar unit Main unit ...
Страница 157: ...3 59 Assembly Thread wiper unit Main unit ...
Страница 162: ...3 64 Needle bar change unit Main unit ...
Страница 166: ...3 68 Needle thread unit Main unit ...
Страница 170: ...3 72 Feed unit Main unit ...
Страница 188: ...3 90 Main unit Main unit ...
Страница 206: ...4 4 Inspection Blunt needle 1 Touch the needle tip with your finger to check that the needle tip is not blunt ...
Страница 244: ...4 4 Inspection Blunt needle 1 Touch the needle tip with your finger to check that the needle tip is not blunt ...
Страница 282: ...4 42 ...
Страница 311: ...6 1 6Maintenance ...
Страница 333: ......