LG LMC1575BD Service Manual

5-31
+
~~
-
+
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-
D9
D8
※ Tester mode : Beep mode or
resistor mode
Status Test result
Normal Open (OL)
Abnormal Short (Beep)
• Check D5 (Bridge Diode)
※ Tester mode : Diode mode
Bridge Diode : AC Checking
※ Tester pin color
Bridge Diode : DC Checking
Status Test result
Normal 0.4V ↑ (about 0.4 ~ 0.6V)
Abnormal 0.4V ↓ or short
Example : normal
LMC1575BD /01
LMC1575ST /01
LMC1575SW /01
LMC1575SB /01
• Check TH91 (Thermistor)
Example : abnormal
(Short or Open)
※ Tester mode : Beep or resistance mode
Status Test result
Normal 20Kohm↓
@ Room temperature
Abnormal Open or Short
Thermistor : TH91
17.96 Kohm @ Room temperature
23.3℃
Example : normal
2. F-16 or F-17 Inverter PCB Check
3. F-13 or F-14 or F-15 Inverter PCB Check
Example : abnormal(Short)
Example : abnormal
(Short)
Example : normal
(Open)

LG LMC1575BD Specifications

General

Style	counter top
Color	black stainless steel
Total Capacity	1.5 cu. ft.
Convection	no
Power Levels	10
Sensor Cooking	yes
Quick Start	no
Timer	yes
Interior Light	yes
Microwave Power	1, 250 watts
Voltage	120 volts
Current	15a

Weight and Dimensions

Depth	17 inch
Height	12 13/100 inch
Width	21 41/100 inch