© Ernst Nagel GmbH 2S Trimmer Service Manual en.doc Rev.1.0. 20.07.2011
77
Contents
5. Troubleshooting
(continued)
5.3 Fault Code Solutions
(continued)
STR 087
36V M6DC PCB1 High
•
Go
to
STR 086 – 36V M6DC PCB1 Low
STR 088
36V M6DC PCB5 Low
Disconnect connector 5P11. Measure between the wires (Red1&Black2)
The voltage is approximately 36VDC?
Y N
Check 5P11 wire for damage or Short Circuit across leads. (Red1&Black2)
Is there damage or a short Circuit?
Y N
Disconnect plug J1. Measure between the wires (Red1&Black7)
The voltage is approximately 36VDC?
Y N
Check
J11
wire
for
damage
or
Short Circuit across leads. (Red1&Black7)
Is there damage or a short
Circuit?
Y N
Disconnect
connector
3P1. Measure between pin 1 and pin2.
The voltage is approximately
36VDC?
Y N
Replace
PCB3
1.
Replace
wire
harness
2. Replace K1
Replace
wire
harness
Replace
wire
harness
Replace
wire
harness
Replace PCB5
STR 089
36V M6DC PCB5 High
•
Go
to
STR 088 – 36V M6DC PCB5 Low