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6-2. Reset Circuit
The reset circuit initializes the microcomputer program when Power is ÒONÓ from ÒOFFÓ.
Low voltage at pin 48 resets the microcomputer , and HI activates the microcomputer.
Fig. 6-7 shows the reset circuit and Fig. 6-8 shows waveform at each point when power is turned on and
off.
When power is turned on, 12V line and 5V line voltages rise and 12V line voltage reaches 10.9V an
reset voltage input to pin 48 of microcomputer is set to Hi .
Reset voltage will be hold ÒHiÓ until the 12V line voltage drops to 9.90V even though the power shuts
down.
Fig. 6-7
Fig. 6-8
−
MAIN P.W.B.
Microcomputer
RESET OUT.
RESET
56
48
C204
0V
R252
1
0V
8
2
3
IC5(1/2)
+
5V
D208
R287
C215
R284
R286
C225
R285
C226
R292
R289
R288
0V 0V 0V 0V
12V
12V line
12V line
5V line
5V line
Reset volage
Reset volage
Time
Time
10.9V
9.9V
12
6
0
12
6
0
Power
is
ON
Voltage
(V)
Power
is
OFF
Voltage
(V)
– 59 –
Содержание Summit RAC-18YH5
Страница 6: ...SPECIFICATIONS 0 4 ...
Страница 17: ... 01 2 34 5 6 2 7 6 7 8 3 9 15 ...
Страница 18: ... φ 0 φ φ 0 1 1 1 2 33 16 ...
Страница 20: ... 0 0 1 203 1 202 4 5 5 6 6 728 5 9 7 8 2 7 4 18 ...
Страница 21: ... 19 ...
Страница 23: ...RAS 18YH5 MODEL Control P W B Indicating P W B Display Auto Sweep Motor Light Receiving Unit IRR 21 ...
Страница 24: ...RAC 18YH5 MODEL A X 8 T 1 1 SELF CHECK SELF MODE SERVICE SW RED RED RED 23 ...
Страница 25: ... 25 0 0 0 1 1 1 1 2 0 1 3 44 5 1 1 6 7 4 887 8972 ...
Страница 26: ... 27 ...
Страница 27: ... 28 Mode data file RAS 18YH5 VALUE LABEL NAME ...
Страница 28: ... 29 0 1 1 2 334 5 22 1 6 0 7 0 7 6 8 1 9 0 1 1 66 66 5 0 7 22 22 1 1 ...
Страница 31: ... 35 0 1 ...
Страница 32: ... 36 ...
Страница 33: ... 0 1 2 3 4 1 2 0 1 2 3 4 1 2 5 6 6 5 6 6 7 4 4 37 ...
Страница 34: ... 2 Receiver Circuit 3 Buzzer Circuit 01 23 4 5 5 6 6 6 78 9 4 9 5 4 9 8 2 38 ...
Страница 36: ...5 Initial Setting Circuit IC401 6 Power Supply 0 1 2 2 3 4 2 5 6 4 7 8 6 9 8 6 40 ...
Страница 37: ... 7 Fan Motor Drive Circuit 0 0 1 2 3 3 0 45 67 8 7 45 3 0 9 0 2 2 1 52 152 2 2 41 ...
Страница 38: ... 0 1 2 3 4 1 2 3 3 3 0 3 5 6 1 7 7 5 8 0 42 ...
Страница 40: ... 0 1 0 2 3 3 2 3 3 2 3 3 2 44 ...
Страница 43: ... 1 8 0 9 1 8 0 9 47 ...
Страница 45: ... 0 49 ...
Страница 48: ... 0 12 3 4 0 12 5 5 4 6 7 3 8 9 3 9 9 9 4 4 4 52 ...
Страница 49: ... 0 1 2 3 4 5 45 5 4 5 45 5 5 4 45 45 5 5 53 ...
Страница 50: ...5 Power Circuit for P W B 54 ...
Страница 54: ... 0 1 2 23 23 4 5 6 7 8 6 6 9 0 6 1 3 1 6 0 1 6 6 0 9 58 ...
Страница 57: ... 0 0 0 1 8 Reversing valve control circuit 2 334 5 4 6 5 7 8 0 3 0 8 0 8 0 61 ...
Страница 67: ... 71 0 0 1 2 31 0 4 5 0 6 1 6 6 0 1 5 0 1 6 0 0 6 0 ...
Страница 68: ... 72 0 1 2 THE SUPPORT FUNCTION OF FAILURE DIAGNOSIS ...
Страница 69: ... 73 0 1 2 3 4 5 6 3 3 7 8 6 9 3 8 6 9 3 6 8 698 6 6 60 9 6 8 ...
Страница 70: ... 74 ...
Страница 77: ... 81 ...
Страница 80: ... 84 0 1 0 1 2 0 3 4 1 3 0 3 1 5 5 5 5 5 5 5 5 ...
Страница 82: ... 86 0 1 0 2 3 2 3 4 4 4 4 4 ...
Страница 83: ... 87 ...
Страница 84: ... 88 0 10 2 3 3 4 1 2 2 5 2 6 7 7 7 7 7 7 7 3 3 3 3 3 3 3 ...
Страница 85: ... 89 0 12 3 3 3 ...
Страница 86: ... 90 0 12 1 3 4 5 4 5 4 5 4 65 65 7 6 8 9 2 8 5 ...
Страница 88: ... 92 IPM Intelligent Power Module DIAGNOSIS ...
Страница 91: ... 95 4 Tangential air flow fan and fan motor 1 Electrical parts 0 1 211 3 0124 5 6 78 ...
Страница 92: ... 96 ...
Страница 93: ... 97 ...
Страница 94: ... 98 ...
Страница 95: ... 99 ...
Страница 96: ...Printed in Japan TSK AW NO 0010E RAS 18YH5 RAC 18YH5 F ...