Fuse Check List - Powertronix Quasar Service Manual

Chapter 7 - Troubleshooting

Fuse Check List

7.7 - Fuse Check List
Prior to any fault diagnosis, a serviceability check of the fuses is recommended. Failure of a fuse
can give an indication of a defective power device or component.
Table 7-3 Fuses
Fuse
F1
F2
F3
F4
F1
F4
F2
F3
F1
F2
F1
F2
F3
F4
F5
F1
7 - 12
1. Using the list shown in Table 7 3 check each fuse for serviceability.
2. Determine the serviceability of any related component or PCB and repair or replace as
required.
3. Replace the fuse with a serviceable item.
4. Continue with any required fault diagnosis.
Value
32A Battery Bank 1
32A Battery Bank 2
32A Battery Bank 3
32A Battery Bank 4
125A Primary DC bus +ve
125A Primary DC bus ve
125A Secondary DC bus +ve
125A Secondary DC bus ve
1A DC+ Input
1A DC Input
Input Phase R
10A
Input Phase S
10A
Input Phase T
10A
Battery +
10A
Battery
10A
1A Cooling Fan Protection
Function
Battery Fuses Front Switch Panel Batte F e F o t S itch Pa el
Upper Power Section See Figure 7 5 U P
Upper Power Section See Figure 7 5 U P
Auxiliary DC DC Converter PCB A ilia
Battery Charger PCB y
Fan PCB
Service Manual
Location
S ti S Fi 7 5
S ti S Fi 7 5
DC DC Co e te PCB
g
3x3 UPS Troubleshooting
Issue 2 - November 2001