8.3. Simple way of H.V. Inverter/magnetron troubleshooting
Purpose:
Simple way (3/23 seconds rule) of identifying whether it’s Magnetron, Inverter, or others.
Set-up:
The unit under question is connected through the Ammeter as shown below.
Procedure:
Follow the matrix table below to identify the problem source.
Note:
Do not replace both Inverter board and Magnetron simultaneously and automatically without going through this
procedure.
Power will:
Ammeter reading is:
To do:
Remedy:
Shut off in 23 seconds
after “Start”.
1. Between 0.5A and 1.0A.
Check and repair open magnetron circuit Open magnetron wiring between Inverter
and magnetron terminal.
2. Between 1.0A and 2.0A.
Check continuity of D702 in Inverter PCB.
1. D702 shorted
Replace H.V.Inverter
(F606Y6G00AP/F606Y6G00CP)
2. D702 is OK
Replace magnetron
Shut off in 3 seconds
after “Start”
1. Less than 0.5A
Check open circuit: Latch Switch, DPC,
Power Relay and CN701
Replace
defective
component(s),
or
correct switch, cables and connectors.
8.4. How to check the semiconductors using an OHM meter
23
NN-T695 NN-T685SF
Содержание INVERTER NN-H665
Страница 2: ...2 NN T695 NN T685SF ...
Страница 3: ...3 NN T695 NN T685SF ...
Страница 5: ...1 SCHEMATIC DIAGRAM 1 1 APH 5 NN T695 NN T685SF ...
Страница 6: ...1 2 CPH 6 NN T695 NN T685SF ...
Страница 7: ...1 3 RPH 7 NN T695 NN T685SF ...
Страница 24: ...9 EXPLODED VIEW AND PARTS LIST 9 1 EXPLODED VIEW 24 NN T695 NN T685SF ...
Страница 35: ...10 DIGITAL PROGRAMMER CIRCUIT 10 1 NN T695SF APH CPH T695SF SM RPH 35 NN T695 NN T685SF ...
Страница 36: ...36 NN T695 NN T685SF ...
Страница 37: ...10 2 NN T685SF APH CPH T675SF APH 37 NN T695 NN T685SF ...
Страница 38: ...38 NN T695 NN T685SF ...
Страница 39: ...10 3 NN T665SF APH T655SF APH T664SFR APH 39 NN T695 NN T685SF ...
Страница 40: ...40 NN T695 NN T685SF ...
Страница 41: ...10 4 NN H665 APH CPH H635 APH S655 APH S645 APH S615 CPH 41 NN T695 NN T685SF ...
Страница 42: ...42 NN T695 NN T685SF ...
Страница 44: ...44 NN T695 NN T685SF ...
