Xtreme Power Conversion P91 - 7.2 Repair; 7.2.1 Basic Instruments and tools; 7.2.2 Configuration of the Model Port on the Control Board

Xtreme Power Conversion Corporaon
P91, TX91, TX91L, TXVR Service Manual
Page 23
Uninterrupble Power Supply
7.1.3 Troubleshoong
Problem Possible cause Acon
Baery backup me is short Baery not yet been fully
charged.
Keep UPS connected to ulity power connuously
for more than 10 hours to recharge the baeries.
UPS overload. Check the loads and remove some non-crical
loads.
Baery aged Replace the baeries
Charger fails Replace the charger
The UPS cannot power on
aer pressing the buon
The buon is not pressed
and held long enough
Press and hold the buon connuously for more
than 0.5s
Baery is not connected
or baery voltage is too
low, or charger fails.
Check the charger and baery.
UPS failure. Repair the UPS.
7.2 Repair
In this secon, some debug skills are listed to help you nd the failed components and problems as soon as pos-
sible. Before taking the following steps, we strongly suggest reading previous secon for trouble shoong rst.
Then check the components listed in secon 7.2.4 to nd out which block fails
7.2.1 Basic Instruments and tools
1. One computer with RS232 port and one standard RS232 cable;
2. Wire cuers and clamps;
3. One electric soldering iron;
4. One mulmeter;
5. One oscilloscope(voltage and current probe needed);
6. Diagonal pliers, snipe nose pliers, cross screwdrivers (150mm/75mm length), at screwdrivers
(75mm length) and PVC insulang tapes etc;
7. Make-self tools including Balance voltage test equipments, current liming resistors, tubes and clamp ter-
minals with dierent specicaons;
7.2.2 Conguraon of the Model Port on the Control Board
The Model Port (JP1) on the CNTL board should be congured as follows:
Table 7.1 Model Port Seng List
Model Type pin1&pin2 pin3&pin4 Baery
Number
pin5&pin6 pin7&pin8 pin9&pin10
6K 0 1 16 1 0 0
6KL 0 0 17 0 1 1
10K 1 1 18 0 1 0
10KL 1 0 19 0 0 1
20 0 0 0
Note: “1” indicates that the jumper is connected;
“0”indicates that nothing is connected