Panasonic KX-MB2230RU / KX-MB2270RU / KX-MB2510RU / KX-MB2540RU Service Manual ▷ View online
89
KX-MB2230RU/ KX-MB2270RU/ KX-MB2510RU/ KX-MB2540RU
Note:
The value is displayed on LCD at Test Functions (P.125) [#815].
20
248
F8
104
195
C3
188
96
60
21
247
F7
105
194
C2
189
95
5F
22
247
F7
106
193
C1
190
94
5E
23
247
F7
107
192
C0
191
93
5D
24
247
F7
108
191
BF
192
92
5C
25
246
F6
109
189
BD
193
91
5B
26
246
F6
110
188
BC
194
90
5A
27
246
F6
111
187
BB
195
89
59
28
246
F6
112
186
BA
196
88
58
29
245
F5
113
185
B9
197
87
57
30
245
F5
114
184
B8
198
86
56
31
245
F5
115
183
B7
199
85
55
32
245
F5
116
181
B5
200
84
54
33
244
F4
117
180
B4
201
83
53
34
244
F4
118
179
B3
202
82
52
35
244
F4
119
178
B2
203
81
51
36
243
F3
120
177
B1
204
81
51
37
243
F3
121
175
AF
205
80
50
38
243
F3
122
174
AE
206
79
4F
39
242
F2
123
173
AD
207
78
4E
40
242
F2
124
172
AC
208
77
4D
41
242
F2
125
170
AA
209
76
4C
42
241
F1
126
169
A9
210
75
4B
43
241
F1
127
168
A8
211
75
4B
44
240
F0
128
167
A7
212
74
4A
45
240
F0
129
165
A5
213
73
49
46
240
F0
130
164
A4
214
72
48
47
239
EF
131
163
A3
215
71
47
48
239
EF
132
162
A2
216
71
47
49
238
EE
133
160
A0
217
70
46
50
238
EE
134
159
9F
218
69
45
51
237
ED
135
158
9E
219
68
44
52
237
ED
136
157
9D
220
68
44
53
236
EC
137
155
9B
221
67
43
54
236
EC
138
154
9A
222
66
42
55
235
EB
139
153
99
223
65
41
56
235
EB
140
152
98
224
65
41
57
234
EA
141
150
96
225
64
40
58
234
EA
142
149
95
226
63
3F
59
233
E9
143
148
94
227
63
3F
60
232
E8
144
147
93
228
62
3E
61
232
E8
145
145
91
229
61
3D
62
231
E7
146
144
90
230
61
3D
63
231
E7
147
143
8F
231
60
3C
64
230
E6
148
142
8E
232
59
3B
65
229
E5
149
140
8C
233
59
3B
66
229
E5
150
139
8B
234
58
3A
67
228
E4
151
138
8A
235
57
39
68
227
E3
152
137
89
236
57
39
69
227
E3
153
135
87
237
56
38
70
226
E2
154
134
86
238
56
38
71
225
E1
155
133
85
239
55
37
72
225
E1
156
132
84
240
54
36
73
224
E0
157
130
82
241
54
36
74
223
DF
158
129
81
242
53
35
75
222
DE
159
128
80
243
53
35
76
222
DE
160
127
7F
244
52
34
77
221
DD
161
126
7E
245
51
33
78
220
DC
162
124
7C
246
51
33
79
219
DB
163
123
7B
247
50
32
80
218
DA
164
122
7A
248
50
32
81
218
DA
165
121
79
249
49
31
82
217
D9
166
120
78
250
49
31
83
216
D8
167
118
76
Temperature
[C
°]
AD value
HEX reading
Temperature
[C
°]
AD value
HEX reading
Temperature
[C
°]
AD value
HEX reading
90
KX-MB2230RU/ KX-MB2270RU/ KX-MB2510RU/ KX-MB2540RU
4. The correspondence readings between room temperature measured bye thermistor and HEX readings
You can read the AD value of room temperature in service mode.
Push the keys [MENU]-[#]-[9][0][0][0]-[ ]-[8][1][5].
Push the keys [MENU]-[#]-[9][0][0][0]-[ ]-[8][1][5].
Temper-
ature
AD value
Temper-
ature
AD value
Temper-
ature
AD value
Temper-
ature
AD value
Temper-
ature
AD value
[
°C]
DEC
HEX
[
°C]
DEC
HEX
[
°C]
DEC
HEX
[
°C]
DEC
HEX
[
°C]
DEC
HEX
-40
242
F2
-5
188
BC
30
104
68
65
45
2D
100
19
13
-39
241
F1
-4
186
BA
31
102
66
66
44
2C
101
18
12
-38
240
F0
-3
184
B8
32
100
64
67
43
2B
102
18
12
-37
239
EF
-2
182
B6
33
98
62
68
42
2A
103
17
11
-36
238
EE
-1
179
B3
34
96
60
69
41
29
104
17
11
-35
237
ED
0
177
B1
35
93
5D
70
40
28
105
17
11
-34
236
EC
1
175
AF
36
91
5B
71
39
27
106
16
10
-33
235
EB
2
172
AC
37
89
59
72
38
26
107
16
10
-32
234
EA
3
170
AA
38
87
57
73
37
25
108
15
0F
-31
233
E9
4
168
A8
39
85
55
74
36
24
109
15
0F
-30
232
E8
5
165
A5
40
83
53
75
35
23
110
15
0F
-29
230
E6
6
163
A3
41
81
51
76
34
22
111
14
0E
-28
229
E5
7
161
A1
42
79
4F
77
33
21
112
14
0E
-27
228
E4
8
158
9E
43
77
4D
78
32
20
113
14
0E
-26
226
E2
9
156
9C
44
76
4C
79
31
1F
114
13
0D
-25
225
E1
10
153
99
45
74
4A
80
31
1F
115
13
0D
-24
223
DF
11
151
97
46
72
48
81
30
1E
116
13
0D
-23
222
DE
12
148
94
47
70
46
82
29
1D
117
13
0D
-22
220
DC
13
146
92
48
69
45
83
28
1C
118
12
0C
-21
219
DB
14
143
8F
49
67
43
84
28
1C
119
12
0C
-20
217
D9
15
141
8D
50
65
41
85
27
1B
120
12
0C
-19
215
D7
16
138
8A
51
64
40
86
26
1A
121
11
0B
-18
214
D6
17
136
88
52
62
3E
87
26
1A
122
11
0B
-17
212
D4
18
133
85
53
61
3D
88
25
19
123
11
0B
-16
210
D2
19
131
83
54
59
3B
89
25
19
124
11
0B
-15
208
D0
20
128
80
55
58
3A
90
24
18
125
10
0A
-14
207
CF
21
126
7E
56
56
38
91
23
17
-13
205
CD
22
123
7B
57
55
37
92
23
17
-12
203
CB
23
121
79
58
54
36
93
22
16
-11
201
C9
24
118
76
59
52
34
94
22
16
-10
199
C7
25
116
74
60
51
33
95
21
15
-9
197
C5
26
114
72
61
50
32
96
21
15
-8
195
C3
27
111
6F
62
48
30
97
20
14
-7
193
C1
28
109
6D
63
47
2F
98
20
14
-6
190
BE
29
107
6B
64
46
2E
99
19
13
These 2 digits mean the AD value(HEX)
according to the table below.
according to the table below.
LCD indicates as below.
*
D
C
C
S C
R E
*
P
T K N B
MA N C
3
F D F
P U
U T
D
* *
*
*
* *
91
KX-MB2230RU/ KX-MB2270RU/ KX-MB2510RU/ KX-MB2540RU
6.17. Power Saving (Sleep) Function
The system circuit and the power supply circuit have a function which reduces power consumption.
It is performed at the time of not operating condition (Sleep).
The content is as follows.
It is performed at the time of not operating condition (Sleep).
The content is as follows.
When not operating for a definite period of time, it performs automatically by the following change.
1. SoC (IC300) is changed into sleep mode from normal mode.
2. PWRDWN1 and PWRDWN2 of SoC signals are changed.
2. PWRDWN1 and PWRDWN2 of SoC signals are changed.
PWRDWN1 changes the output voltage of the Low Voltage Power Supply board (SMPS Board).
PWRDWN2 turns on/off S3.3V output by switch circuit +24VA,+24VB and S5V are also turned on/off simultaneously with it.
*Refer to Main Board Power Supply Section (P.92) and Power Supply Board Section (P.95) for details.
PWRDWN2 turns on/off S3.3V output by switch circuit +24VA,+24VB and S5V are also turned on/off simultaneously with it.
*Refer to Main Board Power Supply Section (P.92) and Power Supply Board Section (P.95) for details.
92
KX-MB2230RU/ KX-MB2270RU/ KX-MB2510RU/ KX-MB2540RU
6.18. Main Board Power Supply Section
6.18.1. 3.3V and 1.2V Power Supply Descriptions
1. IC800, IC801 is Synchronous Step-Down DC/DC Converter with Auto-Skip Eco-mode to increase light load efficiency.
2. Oscillation frequency is set at approximately 700kHz (Frequency is changed at Light Load.).
3. Q803,Q804,Q805,R809,R815,C812,R816,R818,C831,R814 are Sequence circuit. (After 1.2V DC-DC converter is turned on,
2. Oscillation frequency is set at approximately 700kHz (Frequency is changed at Light Load.).
3. Q803,Q804,Q805,R809,R815,C812,R816,R818,C831,R814 are Sequence circuit. (After 1.2V DC-DC converter is turned on,
3.3V(IC801)'s operation is turned on.)
4. D803, D801 are the Zener Diode for Over voltage protection.
5. Q800, R839, C800, R820 are the switch circuit which turns off a S3.3V power supply at the time of Sleep mode.
5. Q800, R839, C800, R820 are the switch circuit which turns off a S3.3V power supply at the time of Sleep mode.
6.18.2. 5V Power Supply Descriptions
1. IC801 is PWM type DC-DC converter with an internal power MOSFET , which make up step down type DC-DC converter cir-
cuit with coil of L802, schottky diode of D804, Capacitor of C819,C820 and C829.
2. D805 is the Zener Diode for Over voltage protection.
3. Q801,R823,C821,R824,Q802 are the switch circuit which turns off a S5V power supply at the time of Sleep mode.
3. Q801,R823,C821,R824,Q802 are the switch circuit which turns off a S5V power supply at the time of Sleep mode.
R812
R815
R803
F22.1k
R804
C804 K1u
R820
C812 NC
( )
R800
R816
C813 K1u
R806
R805
C814 K4700p
C809
C805 K4700p
+3.3V
Q803
+2.5VT
PWRDWN2
LVIN
C810
R809
R813
0(1608)
LVIN
C802
C803
R811
S3.3V
R801
+5VD
+1.2V
C806
D10p
R839
Q804
Q805
R818
R814
IC801
1
EN
2
VFB
3
VREG5
4
SS
5
GND1
6
SW
7
VBST
8
VIN
9
GND2
IC800
1
EN
2
VFB
3
VREG5
4
SS
5
GND1
6
SW
7
VBST
8
VIN
9
GND2
C824
R841
C825 NC
()
R842
NC
()
C800
C807
C816
Q800
C831
C801
C808 10u/35V
L800
L801 2.2u
D803
D801
+1.2V
+3.3V
S5V
R840
LVIN
R810
C819
R802
C837
R808
R807
5.1k
Q801
1k
IC802
1
CE
2
VIN
4
BST
5
GND
3
LX
6
VFB
R817 10k
R845
C863
+5VD
C820
D804
S3.3V
Q802
D805
C830
C829
L802
+5V
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