Testing Procedures; Component Testing Procedures - Maytag UMV1152CA Manual

Testing Procedures

To avoid risk of electrical shock, personal injury or death; disconnect power to microwave oven and discharge the
high voltage capacitor before servicing, unless testing requires power.

Component Testing Procedures

Illustration Component
High voltage
transformer
120 V
Primary
0 V
JMV9169BA*,
JMV8166BA*
High voltage
transformer
120 V
Primary
0 V
AMV6167BD*
High voltage
transformer
120 V
Primary
0 V
MMV5207B**,
JMV8208B**,
MMV4205BA*
High voltage
transformer
120 V
Primary
0 V
AMV5164BC*
High voltage
transformer
120 V
Primary
0 V
AMV5164BA*,
MMV5165BA*,
AMV1154BA*,
MMV1153BA*,
UMV1152CA*
Lamp receptacle
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!
WARNING
Test Procedure
Discharge Capacitor
Disconnect connector and measure
continuity with meter on R x 1 scale:
Secondary .........................................
Filament ............................................
Secondary
Primary (High & Low) ........................
(Measure at room temp., or 70° F/ 22° C.)
Measure continuity with meter on "High"
Filament
scale: Primary winding to ground.................
Filament winding to ground ...............
Discharge Capacitor
Disconnect connector and measure
continuity with meter on R x 1 scale:
Secondary .........................................
Filament ............................................
Secondary
Primary (High & Low) ........................
(Measure at room temp., or 70° F/ 22° C.)
Measure continuity with meter on "High"
Filament
scale: Primary winding to ground.................
Filament winding to ground ...............
Discharge Capacitor
Disconnect connector and measure
continuity with meter on R x 1 scale:
Secondary .........................................
Filament ............................................
Secondary
Primary (High & Low) ........................
(Measure at room temp., or 70° F/ 22° C.)
Measure continuity with meter on "High"
Filament
scale: Primary winding to ground.................
Filament winding to ground ...............
Discharge Capacitor
Disconnect connector and measure
continuity with meter on R x 1 scale:
Secondary .........................................
Filament ............................................
Secondary
Primary (High & Low) ........................
(Measure at room temp., or 70° F/ 22° C.)
Measure continuity with meter on "High"
Filament
scale: Primary winding to ground.................
Filament winding to ground ...............
Discharge Capacitor
Disconnect connector and measure
continuity with meter on R x 1 scale:
Secondary .........................................
Filament ............................................
Secondary
Primary..............................................
(Measure at room temp, or 70° F/ 22° C.)
Measure continuity with meter on "High"
Filament
scale: Primary winding to ground.................
Filament winding to ground ...............
Test continuity of receptacle terminals ........... Continuity when known good bulb is
16027303
Results
Approx. 118-123 Ω.
Continuity.
Less than 1 Ω.
Infinite Ω.
Infinite Ω.
Approx. 65-69 Ω.
Continuity.
Less than 1 Ω.
Infinite Ω.
Infinite Ω.
Approx. 88-92 Ω.
Continuity.
Less than 1 Ω.
Infinite Ω.
Infinite Ω.
Approx. 67-72 Ω.
Continuity.
Less than 1 Ω.
Infinite Ω.
Infinite Ω.
Approx. 100-104 Ω.
Continuity.
Less than 1 Ω.
Infinite Ω.
Infinite Ω.
inserted.
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