Brother BAS-342G Service Manual

8. ELECTRICAL MECHANISM
124
BAS-342G
8-5-3. Remedy
Problem #1 The power indicator does not illuminate when the power is turned on.
Cause Inspection/Remedy/Adjustment
Replacement if a
malfunction
1. Malfunction of voltage select
harness ***
For 200 V specifications
a. Check if there is a broken wire in the voltage
select harness.
b. Disconnect the connector at the transformer
side, turn on the power and then measure the
voltage at the cord.
(The wiring position may vary depending on the
voltage specifications.)
OK if same as wall outlet voltage
Voltage select harness ***
(*** indicates voltage
specifications)
2. Malfunction of transformer
1） OK if there is continuity between pins 1-3, 2-3,
3-4, 3-5, and 3-6 of the 6-pin connector
coming out from the transformer. [Fig. A]
2） OK if there is continuity between pins 1-2, 3-4
and 5-6 of the 6-pin connector coming out
from the transformer.
[Fig. B]
3） OK if there is continuity between pins 3-4 and
6-7 of the 7-pin connector coming out from the
transformer.
[Fig. C]
Transformer
1266B
1426B
Voltage
specifications
Pin No.
200V 3-5
H220V 3-6
380V 2-3
400V 1-3
4876Q
1319B

Brother BAS-342G Specifications

General

Brand	Brother
Model	BAS-342G
Category	Sewing Machine
Language	English