Schematic Diagram - Power Section (4/4) - Sony PCM-D50 Service Manual

PCM-D50
4-25. SCHEMATIC DIAGRAM – POWER Section (4/4) –
1 2
POWER BOARD (4/4)
A POWER
5
BOARD
VBUS_1
(1/4)
(Page 41)
VDD_GP1
POWER
4
BOARD
SIRCS_KEY_STOP
(3/4)
(Page 43) SIRCS_KEY_REC
B
SIRCS_KEY_PAUSE
SIRCS_KEY_DIVIDE
VDD_DDCOUT33
K0_XRESET
C
POWER
2
BOARD
(1/4)
(Page 41)
D
SIRCS_XDET
LED_ANSWER
DGND
E
RESET_OUT
F
PCM-D50
• See page 50 for IC Block Diagram. • See page 63 for IC Pin Function Description of IC2301.
3 4
R2323
0
JL2309
0
JL2310
0
JL2311
0
JL2312
0
0
K0_XRESET
2.9
0
0
0
R2301
10k
R2304
10k 2.5
C2302
1u
C2303
1u
2.9
OCD
JL2301
VDD
JL2302
R2303
JL2303
10k
FLMD0
JL2304
CLK
JL2305
DATA
JL2307
RX
JL2308
TX
JL2306
GND
5 6
IC2301
SIRCS CONTROL
IC2301
UPD78F0501AMC-5A4-E2-A
ANI1/P21 ANI2/P22 JL2319
ANI0/P20 ANI3/P23 R2308
470k
P01/TI010/ AVSS
TO00 C2304
1u
P00/TI000 AVREF
2.9
P120/INTP0/ P10/nSCK10/
EXLVI TXD0
R2307
nRESET P11/SI10/
10k
RXD0
R2309
10k
FLMD0 P12/SO10
0
P122/X2/EXCLK/ P13/TXD6
OCD0B
2.9
P121/X1/ P14/RXD6
OCD0A
REGC P15/TOH0
VSS P16/TOH1/
INTP5
VDD P17/TI50/
R2306
TO50
0
2.6
P60/SCL0 P30/INTP1
0
P61/SDA0 P31/INTP2/
OCD1A
2.9(0)
P33/TI51/ P32/INTP3/
TO51/INTP4 OCD1B
R2310
10k
44 44
When IC2301 on the Power board are damaged, exchange the
new Power board for the Power board which IC damaged.
7 8
IC B/D
IC2303
TH2301
+2.9V REG
3.3 2.9
4 3
C2309 C2310
1u 1u
IC2303
XC6215S01XNR
1 2
Q2302
C2312
2SK3541T2L
2.3
22u
INVERTER
6.3V
0
R2343
2.2M
S
R2311
470k
0
R2348
R2316
C2305
0
0.1u
Q2301
JL2325
UNR32A400LS0
0
LED DRIVE
0
9 10
R2313
470k
FB2303
FB2301
3
4
J2301
FB2304
5
2
SIRCS
FB2305
1
FB2302