Yamaha 25BMH Service Manual page 420

– +
ELEC
R
CHARGING SYSTEM
2. Measure:
• Rectifier/regulator output peak volt-
age
Below specification → Replace the
rectifier.
r r r r / / / / m m m m i i i i n n n n
D D D D . . . . C C C C . . . . V V V V . . . .
NOTE:
• Before measuring the rectifier peak
voltage, make sure that no abnormality
is observed on the lighting coil.
• For the peak voltage measurement,
connect the adaptor as the illustration
A
for the open circuit, and as the illus-
B
tration
* Refer to the "ELECTRICAL" on page 2-7.
8-18
Output peak voltage
R – B
C C C C r r r r a a a a n n n n k k k k i i i i ng ng ng ng 1 1 1 1 , , , , 5 5 5 5 0 0 0 0 0 0 0 0
O O O O p p p p e e e e n n n n e e e e d d d d C C C C l l l l o o o o s s s s e e e e d d d d
5 5 5 5 . . . . 2 2 2 2 0 0 0 0 1 1 1 1 0 0 0 0 . . . . 8 8 8 8 1 1 1 1 2 2 2 2 . . . . 40 40* * * * 1 1 1 1 3 3 3 3 . . . . 2 2 2 2 0 0 0 0 * * * *
40 40
for the closed circuit.
E
3 3 3 3 , , , , 5 5 5 5 0 0 0 0 0 0 0 0