COMPONENT CHECKOUT PROCEDURE RESULTS
Measure the resistance : Across two terminals with an
ohm-meter on its highest scale.
Normal reading :
Indicates continuity.
HV FUSE
Abnormal reading :
Indicates infinite ohms.
Figure 10
Measure the voltage : Between test points TP-1,TP-2
CONTROLand ground. ( See control circuit board on page 24 ).
Test TP-1 TP-2
CIRCUITNOTE
point
BOARDProceed with the check of the step down transformer, to
Voltage -5V -15V
COMPLETEsee if any one of the measured values is different from the
DC DC
specified values
Measure the resistance between terminals of FPC
connector after removing it from S101. ( See FigureWhen When not
11).Resistance touched touched
NOTEValue
- When reconnecting the FPC connector, make sureLess than More than
the holes on the connector are properly inserted in1K Ohms 1 MEG &
hooks of the plastic fastener in S101.
When checking the "START" key, con-
MATRIX CIRCUIT FOR TOUCH
nect Ohmmeter as illustration below.
KEYBOARD FPC CONNECTOR
TOUCH KEY
Ohm-meter
BOARDTOP
54321
1A1
Clear/GrillQuickAutoBaked
2A2
StopStartDefrostPotato
63A3
4A4
MicroConvecCasseroleChicken5A5
PowerTempPieces6
7C1
7C2
8C3
UpDualKitchenFrozenCake/
CookTimerPizzaPudding9C4
8
10C5
DownSlowMore/BakedSnacks
9CookLessFish
TERMINALS OF FPC CONNECTOR
StartChops/Roast
SteaksJoint
10Figure 11
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