53
A. Testing the fuses
1. Turn power to the spa OFF.
2. Locate the red fuse wire on the stereo wiring harness (
D
), Figure K.
3. Open the black casing that encloses the fuse and remove the 15A fuse.
4. Set your meter to test for continuity.
5. Test across the fuse.
A. A reading of “1” indicates a bad fuse. Replace the fuse and retest.
B. A reading of “0” indicates a good fuse. Proceed to testing the 10A fuse.
B. Testing the power supply
1. Turn power to the spa OFF.
2. Disconnect the spade connectors between the power supply (
I
) and the spa wiring harness
(
H
).
3. Turn power to the spa back ON.
4. Set your meter to 20 VDC.
5. Test across the spade connectors for the power supply (
I
) for 12-15 VDC, Figure M.
6. If voltage is good then the stereo unit is bad. If voltage is bad then the power supply is bad.
Figure K
DCV ACV
DCA
OFF
1000
200
20
2000m
200m
2000k
200k
20k
2000
200
10A
200m
20m
2000µ
200µ
Ω
+
750
200
DCV ACV
DCA
OFF
1000
200
20
2000m
200m
2000k
200k
20k
2000
200
10A
200m
20m
2000µ
200µ
Ω
+
750
200
15A
15A
reading of 1
indicates a
reading of 0
indicates a
15A
D
Figure M
Test points
I