Dc-Dc Power - Sony DVP-FX720 Service Manual

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3 7 6 3 1 5 1 5 0

4-2. DC-DC POWER

1
MAIN BOARD (1/6)
A
DC IN 9.5V
– +
J8 J8
DCJACK DCJACK
B
Adapter Power Supply : 9.5V/2A
Battery Power Supply : 7.4V/2800mAh
AP2309GN
C
B
2SB1260
D
E
T E
L 1 3 9 4 2 2 9 6 5 1 3
F
G
H
I
J
www DC_IN
C278 C278
0.1uF 0.1uF
K
.
L
05
http://www.xiaoyu163.com
• See page 5-3 for printed wiring board.
2 3 4 5
ADVCC
P1 P1
CF12V3T3R00-3A32V CF12V3T3R00-3A32V
1
3
2
D21 D21 EC71 EC71 C242 C242 C243 C243 R261 R261
SK34A SK34A 100uF/25V 100uF/25V 0.1uF 0.1uF 1000pF 1000pF 100K 100K
8X6.5 8X6.5
R263 R263
200K 200K
D D
G S G S Q45 Q45
2N3904 2N3904
2SK3018
CHARGE_EN R264 R264 1
100K 100K
C C C C R265 R265
100K 100K
E
E B B E B E
C C
2N3904 2N3906
2SB1132
DC_IN
C263 C263
C262 C262 0.01uF 0.01uF
C261 C261
U17 U17
1000pF/NC 1000pF/NC 0.01uF 0.01uF
1 10
NC SS
R271 R271 2 9 SYSTEM_POWER_EN
BS EN
3 8
0R 0R
145mA
NC Comp
4 7
IN FB
5 6 C264 C264
SW GND
3.3nF 3.3nF
EC90 EC90
C267 C267 FP6340 R272 R272
C266 C266
100uF/25V 100uF/25V 1000pF/NC 1000pF/NC 10K 1% 10K 1% C268 C268
0.1uF 0.1uF
8X6.5 8X6.5 2.2nF/NC 2.2nF/NC
R273 R273
10K 1% 10K 1%
R285 R285
22K 1% 22K 1%
3.3V
U18 U18
R276 R276
100K 100K
5
VIN OUT
GND
USB_POWER_EN R277 R277 4
EN NC
1K 1K
G5240C2T1U G5240C2T1U
C271 C271
1uF 1uF
C274 C274 C275 C275 C276 C276
U20 U20
1000pF/NC 1000pF/NC 0.01uF 0.01uF 0.01uF 0.01uF D26 D26
1 10 SK34A SK34A
NC SS SYSTEM_POWER_EN
R279 R279 2 9
BS EN
3 8
0R 0R
NC Comp
298mA 4 7
IN FB
5 6 C277 C277
SW GND
x C279 C279 EC83 EC83 a o 3.9nF 3.9nF R283 R283
0.1uF/NC 0.1uF/NC 22uF/25V 22uF/25V C280 C280 FP6340 FP6340 y 10K 10K
1000pF/NC 1000pF/NC R281 R281 R282 R282 C281 C281
6.3X5.3 6.3X5.3
10K 1% 10K 1% 2.2K 1% 2.2K 1% 3.9nF 3.9nF
i
R286 R286
15K 1% 15K 1%
4-5
http://www.xiaoyu163.com
8
6 7 8 9
CHARGE CURRENT:800mA (MAX)
1 Disabl e
ADVCC ADVCC
o Enabl e
R260 R260
1
10K 10K BCH BCH
DC_IN C245 C245 C239 C239 C240 C240 C241 C241 BVCC BVCC BST BST
D22 D22 1000pF 1000pF 0.1uF 0.1uF 1000pF 1000pF 0.1uF 0.1uF BTVCC
FB37 FB37
SK34A SK34A
FB-100R-3A-0805 FB-100R-3A-0805
1 580mA 2 3
2
Q43 Q43
FV:0.36V
AP2309GN AP2309GN R262 R262
DCIN DCIN FB38 FB38 100R 100R
Q44 Q44
FB39 FB39 FB-1500R-300mA FB-1500R-300m
AP2309GN AP2309GN FB-100R-3A-0805 FB-100R-3A-0805 C246 C246 C247 C247
2 3 1000pF 1000pF 0.1uF 0.1uF
C248 C248 C249 C249
CHARGE_STATUS_DET
0.1uF 0.1uF 0.1uF 0.1uF
1
D23 D23
TFT_5V
5V_TFT_POWER
T5V T5V
L18 L18
L18 L18 238mA
22uH-0.8A 22uH-0.8A
EC73 EC73
C255 C255
C253 C253 47uF/10V 47uF/10V
0.1uF 0.1uF
0.1uF 0.1uF 5.0X5.3 5.0X5.3
Q Q
A5V A5V
MAX:1A
AUDIO_VCC
FB40 FB40
3 7 6 3
190mA
FB-100R-3A-0805 FB-100R-3A-0805
+5V C260 C260
+5V +5V 0.1uF 0.1uF EC76 EC76
47uF/10V 47uF/10V
L19 L19
5.0X5.3 5.0X5.3
22uH-1.3A 22uH-1.3A
AVCC AVCC
EC77 EC77 AVCC PICK_UP POWER
FB41 FB41
47uF/10V 47uF/10V
13mA
D25 D25 5.0X5.3 5.0X5.3
SK34A SK34A FB-100R-3A-0805 FB-100R-3A-0805
C265 C265 EC78 EC78
C254 C254
47uF/10V 47uF/10V
0.1uF 0.1uF
10uF/6.3V 10uF/6.3V
5.0X5.3 5.0X5.3
R274 R274
5.6K 1% 5.6K 1%
Max:560mA
MO_VCC
FB42 FB42 MO_VCC MO_VCC
180mA
FB-100R-3A-0805 FB-100R-3A-0805
C269 C269
EC79 EC79
0.1uF 0.1uF
47uF/10V 47uF/10V
5.0X5.3 5.0X5.3
UVCC UVCC USB_VCC MAX:0.75A
FB43 FB43
1
FB-100R-3A-0805
2
EC80 EC80
C270 C270
3
0.1uF 0.1uF 47uF/10V 47uF/10V
5.0X5.3 5.0X5.3
U19 U19
33V 33V
1.9V
3.3V AME1117_ADJ AME1117_ADJ
V19 V19 V18
L20 L20
3 2 248m A
VIN VOUT
4
22uH-1.3A 22uH-1.3A
VOUT
R278 R278 EC81 EC81 C273 C273
C272 C272
750R 1% 750R 1% 47uF/10V 47uF/10V 0.1uF 0.1uF
0.1uF 0.1uF
EC82 EC82 5.0X5.3 5.0X5.3
47uF/10V 47uF/10V
5.0X5.3 5.0X5.3
C256 C256
DV33 DV33
10uF/6.3V 10uF/6.3V
u 1 6 3 DV33
L21 L21 R280 R280
245mA
390R 1% 390R 1%
FB-100R-3A-0805 FB-100R-3A-0805
EC85 EC85
C282 C282 47uF/10V 47uF/10V
0.1uF 0.1uF 5.0X5.3 5.0X5.3
.
RFV33 RFV33
L22 L22 RFV33
104mA
FB-100R-3A-0805 FB-100R-3A-0805
C283 C283 EC87 EC87
0.1uF 0.1uF 47uF/10V 47uF/10V
5.0X5.3 5.0X5.3
2 4
9 9 8
10 11 12
CHARGE_STATUS_DET
CHARGE_STATUS_DET
J9 J9
SYSTEM_POWER_EN
4
SYSTEM_POWER_EN
3 TO
USB_POWER_EN
2 RECHARGEABLE
USB_POWER_EN
1 BATTERY PACK
CHARGE_EN
CHARGE_EN
BATTERY PACK CON BATTERY PACK CON
Battery in/out
DC_IN
R290 R290 0R/0805 0R/0805
R289 R289
47R/0805 47R/0805
1 5 1 5 0 Q46 Q46 8 9 2 4
2SB1260 2SB1260 P2 P2 L23 L23
3 2
30mA
4.7uH-0.1A 4.7uH-0.1A
P1261LF/NC P1261LF/NC
EC88 EC88
10uF/16V 10uF/16V
C284 C284 EC89 EC89
4.0X5.3 4.0X5.3 0.1uF 0.1uF 22uF/25V 22uF/25V
4 5
6.3X5.3 6.3X5.3
Vin Vout
3 2
ON/OFF GND
U21 U21
S-816A33AMC-BAZ-T2 S-816A33AMC-BAZ-T2
m
TP93 TP93 TP94 TP94 TP95 TP95 TP96 TP96
c o
VGND AGND
4-6
DVP-FX720
2
9 9
13
3
3,6
4
3
P3V3 P3V3 P_3V3
9 8 2 9 9
31mA
C285 C285
0.1uF 0.1uF
RFGND
DC-DC POWER
MAIN (1/6)