
Circuit Diagrams and PWB Layouts
37
LC4.6E AA
7.
SSB: DC-DC Converter
T
O 1M46 OF SUPPL
Y
LCD)
SA1
OR
T
O CN9004 OF SUB SUPPL
Y (PDP)
OUT
IN
CTRL NC
COM
FB
OUT
COMP
VREF
VCC
INH
SYNC
GND GND_HS
NC
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
A
B
C
D
E
A
B
C
D
E
1251 A1
2251 B2
2252 B2
2253 B3
2254 B3
TO/FROM 1M20 OF HERCULES
SUPPLY
RES
NC
RES
2255 B2
2261 D4
2262 D4
2263 D3
2264 D4
2265 E5
2266 E5
2268 E7
2269 E7
2271 B6
3251 A2
3259 D2
3260 D3
3266 E5
3267 E6
3268 E6
3270 B6
3271 B6
3273 A7
3274 A7
4251 A2
4255 B2
5251 A3
5252 A3
5257 B3
5258 B3
5259 C3
A3
DC-DC CONVERTER
NC
A2
NC
(PDP)
(PDP)
NC
5262 D3
5267 D6
5268 D7
6259 D3
6262 D3
6267 E6
6270 A6
7260 C4
7262 D4
7271 B7
7272 B7
F251 A1
F252 A1
F253 A1
F254 A1
F255 A1
F257 B1
F258 A4
F259 B7
F260 C7
I251 C3
I252 C4
I253 C4
(PDP)
A5
NC
(LCD)
(LCD)
I254 D3
I255 D4
I256 D5
I257 E5
I258 E5
I259 E5
I260 D7
I261 A6
I262 B6
I263 B6
I264 A2
7271
A3
5267
33u
5
6
7
8
9
BC847BW
1251
1
10
11
2
3
4
+3V3STBY
SupplyGnd
22K
3274
3273
220K
I255
I254
F258
10p
2255
+12VSW
4255
4
5
7
9
3
1
2
8
6
SupplyGnd
Φ
7262
L5973D
22n
2266
+3V3STBY
1%
3K3
3268
1%
5K6
3267
2
3
1
4
5
LF33CPT
7260
10u 16V
2254
2251
10p
+12VUNREG
6262
SS24
SupplyGnd
SupplyGnd
SupplyGnd
2265
220p
10p
2252
5252
10n
2271
SupplyGnd
5262
10u
SS36
6267
I262
I263
I260
I261
I259
I257
I258
I256
5251
5258
5257
10u
5268
+12VUNREG
2263
10u
7272
BC847BW
I253
I251
I252
SupplyGnd
+8V6
BZX384-C8V2
6270
F252
F253
+12VUNREG
2K2
3270
F260
F257
F259
2261
F254
F255
I264
3251
1R0
10K
3259
2253
16V
10u
SupplyGnd
3271
470R
4251
+5V2
5259
470u
2269
16V
16V
2268
470u
SupplyGnd
6259
SS14
6K8
3260
10u
2264
F251
+5V2_RELAIS_IO2
3266
4K7
SupplyGnd
16V
47u
2262
+9V_STBY_PDP
+12V
+5V
POWER_DOWN
3139 123 5837.1
E_14710_029.eps
020904