wsm STW37 Workshop Manual page 485

STW34, STW37, STW40, WSM
Rectifier
1. Check the continuity across each diode of rectifier with an
analog ohmmeter. Conduct the test in the (R x 1) setting.
2. The rectifier is normal if the diode in the rectifier conducts in one
direction and does not conduct in the reverse direction.
IMPORTANT
• Do not use a 500 V megohmmeter for measuring because it
will destroy the rectifier.
NOTE
• Do not use an auto digital multimeter. Because it's very
hard to check the continuity of rectifier by using it.
IC Regulator
1. Check the continuity across the B terminal and the F terminal of
IC regulator with an analog ohmmeter. Conduct the test in the
(R x 1) setting.
2. The IC regulator is normal if the IC regulator conducts in one
direction and does not conduct in the reverse direction.
IMPORTANT
• Do not use a 500 V megohmmeter for measuring because it
will destroy the IC regulator.
NOTE
• Do not use an auto digital multimeter. Because it is very
hard to check the continuity of IC regulator by using it.
9-S48
ELECTRICAL SYSTEM
WSM000001ELS0044US0
WSM000001ELS0045US0
KiSC issued 11, 2014 A