Panasonic KX-MB1520FX7, Service Manual

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KX-MB1520FX7/KX-MB1520FX8/KX-MB1520FXW/KX-MB1530FX7/KX-MB1530FXW
2. Safety Protection
a. 2 thermostats are provided with the unit, and the heater circuit is shut down when their surface temperatures became over
160

C.
b. The heater control circuit of IC300 has the built-in function that the hardware turns off the heater control automatically if
the software does not keep turning ON the heater every a fixed time.
c. When the temperature became over 250

C, the heater control circuit of IC300 is turned off forcedly and system reset will
be executed.
3. The correspondence readings between temperature measured by fixing thermistor and HEX readings
You can read the AD value of heater temperature in service mode.
Push the keys [MENU]-[#]-[9][0][0][0]-[ ]-[8][1][5].
The correspondence readings between temperature measured by thermistor and HEX readings
Temperature
[C

]
AD value HEX reading Temperature
[C

]
AD value HEX reading Temperature
[C

]
AD value HEX reading
0 252 FC 84 202 CA 168 93 5D
1 251 FB 85 200 C8 169 92 5C
2 251 FB 86 199 C7 170 91 5B
3 251 FB 87 198 C6 171 90 5A
4 251 FB 88 197 C5 172 89 59
5 251 FB 89 196 C4 173 88 58
6 251 FB 90 195 C3 174 87 57
7 250 FA 91 193 C1 175 86 56
8 250 FA 92 192 C0 176 85 55
9 250 FA 93 191 BF 177 84 54
10 250 FA 94 190 BE 178 83 53
11 249 F9 95 188 BC 179 82 52
12 249 F9 96 187 BB 180 81 51
13 249 F9 97 186 BA 181 80 50
14 249 F9 98 184 B8 182 79 4F
15 248 F8 99 183 B7 183 78 4E
16 248 F8 100 182 B6 184 77 4D
17 248 F8 101 181 B5 185 76 4C
18 248 F8 102 179 B3 186 75 4B