Lincoln Electric V160-S Service Manual page 76

F-16
INPUT BOARD TEST V160-S/T (continued)
Start Resistor
20 Ohms
D11 Recti er
115VDC
D20 Recti er
16VDC
TEST PROCEDURE (NEW MODELS)
1. Locate connector JP1. See Figure F.6A.
See Figure F.7. See Figure F.8.
2. Check pin 5 to pin 11 for -5vdc.
3. Check pin 7 to pin 11 for 15vdc.
4. Check pin 9 to pin 11 for +5vdc.
TROUBLESHOOTING & REPAIR
FIGURE F.6A – INPUT BOARD
Check Capacitors
F2 0 Ohms
F1 Fuse
AC
+
AC
-
-
AC
AC
+
AC
INPUT PCB BACKSIDE
V160-S & -T
For Shorts
PIN 1
TEST PROCEDURE:
1. Locate Connector JP1. See gure F5.
2. Check pin 5 to pin 11 for -5Vdc.
3. Check pin 7 to pin 11 for +15Vdc.
4. Check pin 9 to pin 11 for +5Vdc.
CONNECTOR JP1
PIN 15
PIN 16
PIN 2
F-16