Panasonic KV-S1057C, Service Manual

Page: 83 / 255

83
12.1.1.4. No.4
F E D C B A
78
56
4
23
F D A B E C
+24.5VDC INPUT
Auto Power Off Logic
3.3V
1.02V DC/DC
7V
3.3V DC/DC
24.5V
7V DC/DC
3.3V
1.8V DC/DC
+24V +24V +24V
GND GND GND
+6V +6V
*1
*1
*1
*1
*1
*1
To Fan motor
*2
*2
*2
*2
*2
*2
*2
*2
*2
*2
S
*2
S
*2
S
S *2
R292
33k 1%
R297
12k 0.5
C179
2700p
C181
4700p
F2
SCT4A
C191
10u 6.3
F3
32V
2A
C174
0.1u 50
C164
10u 35
C194
10u 6.3
C166
10u 35
+3.3V
GND
C176
0.1u 50
CL240
Q13
+7.0V
IC11
1
BOOT
2
VIN
3
SW
4
GND1
5
FB
6
COMP
7
EN
8
SS
9
GND2
C146
10u
GND
C185
0.1u 50
Q17
4
5
1 2 3
6 7 8
GND
GND
GND
R296 100k
Q14
POWER_SW
3:1F
C173
0.1u 50
R270
10k
C172
0.1u 50
R278
220
D17
R271
27k
R269
2.2k
+12V_SLP
R275
10k
GND
GND
R280 22
C155
4.7u
16
F4
32V
2A
C187
10u 10
R279
47k
C168
22u 10
C169
0.1u 50
GND
C170
22u 10
GND
C150
10u 25
CL268
R281 47k
C152
10u
25
R284
100k
C192
10u 10
POW_CNT1
12:8C
R276
0
R299 10k
1%
GND
R298
10k 1%
CL245
R282
47k
VDD10
C156
0.1u
GND
R289
47k
C188
10u 10
R288
1k
Q16
C180
39p
GND R285
100k
C190
10u 10
C160
1u 25
Q15
CL258
CL265
CL266
CL280
R301 24k
1%
R300 75k
1%
C189
10u 6.3
C171
0.1u 50
R291
47k
R290
1k
C196
10u 6.3
C183
39p
C147
22u 6.3
C167
1000p
C148
22u 6.3
C149
K0.1u
GND
C162
22u 6.3
F1
32V
2A
C165
K0.1u
CL267
C163
22u 6.3
GND
GND
R286
3.3k
0.5
R287
12k 0.5
IC9
1
PVIN1
2
PVIN2
3
PGND1
4
PGND2
5
AGND
6
FB
7
FREQ
8
MODE
9
SS
10
SW1
11
SW2
12
SW3
17
FIN
16
AVIN
15
EN
14
PGD
13
BOOT
C157
K0.1u
GND
C154
K0.1u
GND C153
1000p
PGD
4:6E
R272
47k
C151
0.1u 50
R274
47k
R273
1k
GND
C161 100p
GND
GND
R277
0
C201
K0.1u
CL282
C200
22u 6.3
GND
GND
R304
15k 1%
R305
12k
0.5
IC12
1
PVIN1
2
PVIN2
3
PGND1
4
PGND2
5
AGND
6
FB
7
FREQ
8
MODE
9
SS
10
SW1
11
SW2
12
SW3
17
FIN
16
AVIN
15
EN
14
PGD
13
BOOT
C193
K0.1u
GND
C186
K0.1u
GND
C184
1000p
PGD
4:2E
R293
47k
C182
0.1u 50
R295
47k
R294
1k
GND
C198 100p
C177
22u 6.3
R302
0
GND
GND
C175
22u 6.3
C202
1000p
C178
K0.1u
C199
22u 6.3
F5
32V
2A
IC10
1
SW
2
BOOT
3
EN
4
GND1
5
FB
6
COMP
7
RLIM
8
VIN
9
GND2
GND
GND
GND
VDDR2
VDD10
+3.3V_CIS_B +3.3V_CIS_F
+3.3V
D13
CL257
D16
VDDR2
+7.0V
D20
+3.3V
+3.3V
R1082 0
R1083 0
GND
R196
100k
GND
GND
R197
100k
GND
Q33
R255
160
0.5
R256
160
0.5
D11
D3
D1
D19
D21
D22 D23
D5 D6 D7 D8 D9
D10
+24V_ON/OFF
+24V_ON/OFF
R1198
22k
0.1W
Q38
GND
6VLOAD 12:8B
R1199
0
R1200
0
R1201
0
R1202
0
CL701
D12
D2
D4
R1210
68k 1%
CL728
CL729
CL741
CL742
CL744
CL702
CL743
CL264
L29
1.2u
L25 6.8u
@Doub
L26 6.8u
@Doub
L23
1.2u
CN6
1 2 3 4 5 6 7 8
CN14
1 2
Q41
+24V_SLP
R1293
4.7k
R1294
4.7k
Q42
GND
R1295
0.5W 39
GND
Q43
D42
D43
R1296 2.2k
C617
22u 6.3
C615
10uF 25V
GND
GND
FAN_PWM 3:3A
GND
R1298
0.1W
10k
R1297 100
C616
100uF
35V
R1306
0.1W
10k
CL755
CL756
CF1
C648
22u 6.3
R1309
0.1W
220
R1310
0.1W
220
C649
10uF 25V
GND
GND
KV-S1027C CONTROL Board No.4