Read Panasonic KV-S2087 (serv.man2) Service Manual online
122
13.1.24. No.24 (DC/DC Converter)
KS-V2087H MAIN Board No.24
F
E
D
C
B
A
78
56
4
23
F
D
A
B
E
C
CN13
1
+12V
2
GND
3
GND
4
+24Va
5
+24Va
6
GND
7
+24Vb
8
GND
9
PWRDWN
10
GND
GND
GND
*SLEEP_AN
1:7B
Q17
+VCC_SUB
+3.3VCPU
+12V
D24
D20
D18
D15
D23
D25
Q19
C768
1u
50v
GND
GND
C796
1000p
C793
220u
16v
C779
0.01u
C799
100p
C777
1u
50V
C775
100u
35V
GND
IC55
1
NC
2
NC/A
4
REF
5
A
3
K
+2.5VSLP
D19
+3.3VSLP
+5VSLP
D22
D14
D13
R1210
47k
R1211
47k
R1242
47k
R1241
0
+2.2VSLP
D21
OVP
25:1B
C769
1u
50v
GND
R1212
39
D10
Q23
R1215
10k
Q22
FAN_ON
19:2B
R1216
10k
GND
GND
R1218
820
0.25w
C770
10u
10v
R1217
2.4k
D11
Q24
GND
R1221
100
C773
47u
6.3
D12
GND
GND
CL501
CL502
CL505
CL508
CL511
Q20
C_ENB
19:4B;26:2D
R1227
390k
R1228
82k
R1234
1.8k
R1235
2.2k
0.5%
IC50
1
BST
2
VIN
3
SW
4
GND1
5
FB
6
RT
7
EN
8
SS
9
GND2
R1233
7.32k
1
C789
390p
L104
C776
10u
25v
C780
0.1u
C787
0.1u
GND
R1225
82
+12V
*SLEEP_LOG
1:7B;21:2C;24:3E;25:1C
R1226
1k
R1223
1k
*SLEEP_LOG
1:7B;21:2C;24:4C;25:1C
C784
0.01u
R1220
10k
IC52
1
SW
2
BOOT
3
EN
4
GND1
5
FB
6
COMP
7
RLIM
8
VIN
9
GND2
C797
100pF
50V
C794
1000pF
50V
R1238
%
1
k 8
6
R1239
1%
5.9k
L107
10u
L105
10u
R1232
100k
C788
2700pF
C785
39pF
R1230
1%
43k
R1231
100k
R1229
1%
10k
10k
C786
2700pF
R1224
1k
R1219
10k
IC51
1
SW
2
BOOT
3
EN
4
GND1
5
FB
6
COMP
7
RLIM
8
VIN
9
GND2
C778
0.01u
C774
1u
50V
R1236
%
1
k 5
7
C772
100u
35V
R1237
1%
5.36k
GND
L106
10u
C783
39pF
R1222
10k
+24VSLP
+24VIMP
C792
0.1u
C795
0.01u
+3.9VSLP
C798
0.01u
C800
0.01u
C801
1000p
+12VSLP
+3.9VSLP
CL509
CL506
CL503
C804
10u
25
FAN_ERR
19:6C
+3.3VL
+12V_REG
+12VSLP
CL510
GND
CL507
CL504
L109
L111
C805
10u
25
C807
10u
25
IC54
3
VOUT
2
GND
1
VIN
D17
R1240
0
CL577
CL578
CL579
CL581
CF1
+3.9VSLP
C2164
1000pF
C2165
1000pF
C2166
1000pF
C2167
1000pF
GND
+12V
C2168
1000pF
C2169
1000pF
GND
+12VSLP
C2170
1000pF
C2171
1000pF
C2172
1000pF
C2173
1000pF
C2174
1000pF
GND
+24VIMP
C2175
1000pF
GND
+24VSLP
C2176
1000pF
C2177
1000pF
C2178
1000pF
C2179
1000pF
C2180
1000pF
C2181
1000pF
GND
C802
0.1u
C809
0.1u
C803
0.1u
C766
0.1u
C781
0.1uF
C782
0.1uF
+24VSLP
R1465
2.2k
R2143
0
+12VSLP
C2216
1000p
C2217
100p
GND
C791
10uF
25V
C2218
10uF
25V
C2219
10uF
25V
C2220
10uF
25V
C790
47u
6.3V
CN14
1
2
CL617
CL618
CL619
CL620
CL621
To POWER Board
D
S
G
To FAN
24V
12V
12V
3.9V
24V
10V
14V
12V
S
S
DC/DC Converter
Click on the first or last page to see other KV-S2087 (serv.man2) service manuals if exist.