Check SiUS041829E
120 Part 6 Service Diagnosis
5.12 Main Circuit Short Check
Check No.20 Check to make sure that the voltage between (+) and (–) of the diode bridge (DB1) is about
0 V before checking
Measure the resistance between the pins of the DB1 referring to the table below.
If the resistance is or less than 1 k, short circuit occurs on the main circuit.
09/12 class
Positive terminal (+) of
digital multimeter
~ (2, 3) + (4) ~ (2, 3) – (1)
Negative terminal (–) of
digital multimeter
+ (4) ~ (2, 3) – (1) ~ (2, 3)
Resistance is OK. several k ~ several M
Resistance is NG. 0 or
(R20698)
1
2
3
4
Multimeter
–~~+
–
+
To Next Page
Loading...
Need help?
General