Sharp KS-M102, Service Manual

Page: 11 / 30

EXPLANATION OF CIRCUIT
BLOCK DIAGRAM
VDD Power supply
circuit
11
VR Power supply
circuit
LSI-1
Power supply frequency
SYNC signal generating
circuit
Model change
Warm temp.
control varied
circuit
AC voltage ditector
circuit
Cooking heater drive
circuit
Warming heater drive
circuit
VREF Power supply
circuit
Temp. ditector
circuit
TH71
Room temperature thermistor
TH1
Thermistor plate ass’y
Reset signal supply
circuit
HOW TO ADJUST THE CLOCK
1. Connect the power supply cord to outlet electric
wall.
2. Press the HOUR button or press MINUTE button
for more than 1 second, the clock display blink.
3. Press the Hour button or press the MINUTE
button to adjust the clock.
If the button is hold down and not released the
clock changes continuous.
The clock display flashes 5 second to
unflashes, will be clock adjusting is complete.
Thermistor
temperature
(
o
C)
Thermistor
resistance
(k
Ω
)
TH71 TH1 TH71
-5.0
0.0
20.0
30.0
50.0
60.0
66.0
68.0
70.0
75.0
100.0
125.0
45.74
34.70
12.61
8.00
3.51
2.42
1.71
1.45
0.680
205.6
159.2
61.48
39.72
17.72
12.20
9.83
9.16
8.55
7.20
3.23
1.58
MODEL NAME
MODEL CHANGE
KS-M102
KS-M182
R76
10k OPEN
R77
10k 12k