NOYAFA NF-820 - Common faults maintain; Standard packing

9
10
Common faults maintain
CAUTION:
1. NF-820 can test low voltage
and also can detect high voltage which with AC voltage cable.
2. When use NF-820 to detect live, make sure the insulation of
the alligator clip is good to avoid electric shock.
3. Keep the device in a dry environment.
Standard packing
Faults Possible reasons
Start up, power
LED not bright
1.LED power light was
broken;
2.Battery low voltage;
3.PCB problem for the
emitter;
1.Check the other functions;
2.Connect the power charging
or replace battery;
3.Contact us directly;
Can open the
device ,
but can't scan
1. sensitivity not adjust
the best place;
2.PCB problem for the
emitter;
To adjust the sensitivity;
Cannot adjust
voice
PCB problem for the
emitter
Contact our factory
Earphone
cannot work
1. Earphone was
broken;
2. PCB problem for the
emitter
Earphone replaced;
Maintenance methods
Tone generator
Name Number
x 1ps
Amplifier probe
x 1ps
3.7v lithium battery
x 2pcs
5V 1A power charging adaptor
x 1ps
USB charging line
x 1ps
Earphone
x 1ps
User manal
x 1ps
Carry case
x 1ps
Color box
x 1ps
certificate of quality
x 1ps
Your excellent helper in cable test!
Your excellent helper in cable test!