Samsung FTQ387LWGX Service Manual page 59

4. Troubleshooting
4-2 Electrical Malfunction
FIGURE
1200W 1200W
Element Element
Terminal Terminal
RR or LR Radient element RR or LR Radient element
1400/3000W 1400/3000W
First element First element
Second element Second element
LF Radient element LF Radient element
1100/2200/3000W 1100/2200/3000W
First element First element
Second element Second element
Third element Third element
RF Radient element RF Radient element
100W 100W
187N 187N
Element Element
Terminal Terminal
RC radient element RC radient element
TESTS MEASURE
Check whether harness is connected
*
with terminal of element properly.
element terminal : orange or red
2a : yellow
1b : black+brown
2b : yellow+yellow
Measure voltage and resistance
*
between terminals. (Please refer to
schematic diagram)
Check whether harness is connected
*
with terminal of element properly.
First element terminal : blue
Second element terminal : orange
1b : black
2a : gray
2b : yellow+yellow
Measure voltage and resistance
*
between terminals. (Please refer to
schematic diagram)
Check whether harness is connected
*
with termial of element properly.
First element terminal : blue
Second element terminal : orange
Third element terminal : violet
1b : yellow
2a : gray
2b : black
Measure voltage and resistance
*
between terminals. (Please refer to
schematic diagram)
Check whether harness is connected
*
with terminal of element properly.
- element terminal : violet, violet
(It will not be problem with reversing
the order in insering yellow and red.))
187 type TCO : yellow, yellow
( It will not be problem with reversing
the order in insering black and violet)
Measure voltage and resistance
*
between terminals.
(Please refer to schmatic diagram)
59
RESULTS
Approx
Terminal resistance :
*
1b-2b=
2a- element terminal : 45 ~ 50
(at the room temperature)
Voltage which supply radiant
*
element
2a - element terminal:240V
Replace or repair harness.
*
Approx
Terminal resistance :
*
1b-2b=
2a-First element terminal:
38 ~ 42
2a-second element terminal:
33 ~ 37
(at the room temperature)
2a - rst or second terminal
:240V
Replace or repair harness.
*
Approx
Terminal resistance :
*
1b-2b=
2a-First or second element terminal:
48 ~ 55
2a-third element terminal:
70 ~ 75
(at the room temperature)
2a - rst or second or third
terminal : 240V
Replace or repair harness.
*
Approx
terminal resistance :
*
187 type TCO :
element terminal : 560 ~ 600
(at t he room temperature)
element terminal : 240V
*
Replace or repair harness
*