5 - 8
Failure Investigation for Electronic Parts The needle bar does not move normally.
The needle bar does not move normally.
Connect it properly.
N
Y
Y
Is the color change sensor's lead properly
connected to connecter CN12 on the main PCB?
Connect it properly.
N
Y
Is the index sensor's lead properly connected
to connecter CN22 on the main PCB?
Connect it properly.
N
Y
Is the index motor's lead properly connected
to connector CN4 on the main PCB?
Change color change
sensor.
N
Y
Does the voltage between pins 1 and 3 of
connector CN12 on the main PCB vary from
0 to 3V at each needle bar position when
the index motor's gear is rotated by hand?
Change index sensor.
N
Y
Does the voltage between pins 1 and 3 of connector
CN22 on the main PCB vary from 0V at the position of
the 1st needle bar to 3V at the position of the 2nd needle
bar when the index motor's gear is rotated by hand?
Change index motor.
N
Is the resistance between pins 1 and 2,
and 3 and 4 of the index motor 4.7 - 5.7
Ω
,
respectively, when the motor's connector
(CN4) is removed from the main PCB?
Change main PCB.
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: ......