Sony PCM-D50 Service Manual page 61

SYSTEM BOARD (4/5) IC1503 M66592UG (USB I/F)
Pin No. Pin Name
A1 AFED33G
A2 RST_N
A3 DACK1_N/DSTB0_N
A4 DEND0_N
A5 CS_N
A6 RD_N
A7, A8 SD7, SD6
B1 DM
B2 AFED33V
B3 VIF
B4 DEREQ1_N
B5 WR1_N
B6 SOF_N
B7, B8 SD5, SD4
C1 DP
C2 VBUS
C3 DEND1_N
C4 DREQ0_N
C5 WR0_N
C6 INT_N
C7, C8 SD3, SD2
D1 REFAIN
D2 AFEA15G
D3 AFEA15V
D4 DACK0_N
D5, D6 SD1, SD1
D7 VIF
D8 DGND
E1 XIN
E2 XOUT
E3 AFEA33G
E4 A5
E5 D2/AD2
E6 D14
E7 D15
E8 VDD
F1 ZFED15V
F2 AFED15G
F3 AFEA33V
F4 A2
F5 D1/AD1
F6 D11
F7 D12
F8 D13
G1 VIF
G2 TEST
G3 A3
G4 A6/ALE
G5 D4/AD4
G6 D6/AD6
G7 D8
G8 D10
I/O
— Ground
I Reset signal input
— Not used (Connected to VIF)
— Not used (Open)
I Chip select signal input
I Read enable signal input
— Not used (Open)
I/O USB serial data input/output
— Power supply (+3.1V)
— IO power supply
— Not used (Open)
I Write enable signal output
O SOF pulse output (Not used in this set)
— Not used (Open)
I/O USB serial data input/output
I VBUS detect signal input
— Not used (Open)
O DMA request signal output
I Write enable signal output
O Interrupt request signal output
— Not used (Open)
I Reference resistor connected terminal
— Ground
— Power supply (+1.5V)
I DMA acknowledge signal input
— Not used (Open)
— IO power supply
— Ground
I Main clock input (24MHz)
O Main clock output (24MHz)
— Ground
I Address signal input
I/O Date input/output
I/O Date input/output
I/O Date input/output
— Power supply (+1.5V)
— Power supply (+1.5V)
— Ground
— Power supply (+3.1V)
I Address signal input
I/O Date input/output
I/O Date input/output
I/O Date input/output
I/O Date input/output
— IO power supply
— Not used
I Address signal input
I Address signal input
I/O Date input/output
I/O Date input/output
I/O Date input/output
I/O Date input/output
Description
PCM-D50
61