Sony MHC-V77DW Service Manual page 76

MHC-V77DW
• IC Pin Function Descriptions
89G BOARD (1/3) IC8003 CXD9992R (FOCUS/TRACKING ERROR AMP CD SYSTEM PROCESSOR DIGITAL SERVO PROCESSOR)
Pin No. Pin Name
1 AVDD12_2
2 AVDD33_1
3 XTALI
4 XTALO
5 V20
6 V14
7 REXT / GPO5
8 MDI1
9 LDO1
10 LDO2
11 AVDD33_2
12 DMO
13 FMO
TRAY_OPEN/ GPI0
14
CD_VR
TRAY_CLOSE/ GPI0
15
DVD_VR
16 TRO
17 FOO
18 FG/ GPIO2
19 USB_DP
20 USB_DM
21 VDD33_USB
22 PAD_VRT
23 VDD12_USB
24 SF_CS_
25 SF_DO
26 SF_DI
27 SF_CK
28 UP1_6 / SCL
29 UP1_7 / SDA
30 GPIO11 (RXD)
31 GPIO6 (TXD)
32 PRST_
33 IR / GPI
GPIO3 / INT_ (CEC)
34
NC
35 GPIO4 (VSCK) NC
36 GPIO13 (VSTB) NC
37 GPIO9 (SD-DATA) NC
38 GPIO8 (SD-CMD) NC
GPIO7 / CKE_ (89G_
39
CEC)
40 DVDD33_40
41 RD0
42 RD1
43 RD2
44 RD3
45 RD4
46 RD5
47 RD6
48 RD7
49 DQM0
50 RD15
51 RD14
76
I/O
- Power supply terminal (+1.2V) (for analog system)
- Power supply terminal (+3.3V) (for analog system)
I System clock input terminal (27 MHz)
O System clock output terminal (27 MHz)
O Reference voltage (+2V) output to the optical pick-up block
O Reference voltage (+1.4V) output to the coil/motor driver
I Current reference input terminal
I Laser power monitor input from the optical pick-up block
O Laser diode drive signal output to the optical pick-up block (for CD)
O Laser diode drive signal output to the optical pick-up block (for DVD)
- Power supply terminal (+3.3V) (for analog system)
O Spindle motor control signal output to the motor driver
O Sled motor control signal output to the motor driver
O Variable resistor control signal output to the optical pick-up block (for CD)
O Variable resistor control signal output to the optical pick-up block (for DVD)
O Tracking coil control signal output to the coil/motor driver
O Focus coil control signal output to the coil/motor driver
O The switch of OPU PDIC
I/O Two-way USB data (+) bus terminal
I/O Two-way USB data (–) bus terminal
- Power supply terminal (+3.3V) (for USB)
I/O USB generating reference current terminal
- Power supply terminal (+1.2V) (for USB)
O Chip select signal output to the serial fl ash
O Serial data output to the serial fl ash
I Serial data input from the serial fl ash
O Serial clock signal output to the serial fl ash
I/O Two-way I2C clock signal with the EEPROM
I/O Two-way I2C data signal with the EEPROM
- BENTEN/UTXD1
- HA7 connector
I Reset signal input from the system controller "L": reset
- NO-USE PIN
- URXD1
- NC
- XIFBSY
- NC
- NC
- NC
- Power supply terminal (+3.3V) (for digital system)
I/O Two-way data bus with the SD-RAM
I/O Two-way data bus with the SD-RAM
I/O Two-way data bus with the SD-RAM
I/O Two-way data bus with the SD-RAM
I/O Two-way data bus with the SD-RAM
I/O Two-way data bus with the SD-RAM
I/O Two-way data bus with the SD-RAM
I/O Two-way data bus with the SD-RAM
O Data mask signal output to the SD-RAM
I/O Two-way data bus with the SD-RAM
I/O Two-way data bus with the SD-RAM
Description