Sony HCD-GZR88D Service Manual page 75

• IC Pin Function Descriptions
DMB19 BOARD (2/4) IC101 CXD9971R (CD/DVD RF AMP, FOCUS/TRACKING ERROR AMP, DVD SYSTEM
PROCESSOR, DIGITAL SERVO PROCESSOR)
Pin No. Pin Name
1 RF_A
2 RF_B
3 RF_C
4 RF_D
5 RF_E
6 RF_F
7 AVDD18_2
8 AVDD33_1
9 XTALI
10 XTALO
11 AGND33
12 V20
13 V14/VREFO
14 REXT
15, 16 MDI1, MDI2
17, 18 LDO1, LDO2
19 AVDD33_2
20 DMO
21 FMO
22 MUTE4
23 MSW
24 TRO
25 FOO
26 EEWP
27, 28 USB_DP, USB_DM
29 VDD33_USB
30 VSS33_USB
31 PAD_VRT
32 VDD18_USB
33 SCL
34 SDA
35 IFSDI
36 SF_CS#
37 SF_DO
38 SF_DI
39 SF_CK
40 IFSCK
41 IFSDO
42 ICE
43 PRST#
44 IR
45 to 49 RD0 to RD4
50 DVDD33
51 to 53 RD5 to RD7
54 DVDD18
55 DQM0
56 to 59 RD15 to RD12
60 DVSS33
61 to 64 RD11 to RD8
65 DQM1
66 RCLK
67 RA11
68 DVDD33
I/O
I RF main beam (C) signal input from the optical pick-up block
I RF main beam (B) signal input from the optical pick-up block
I RF main beam (A) signal input from the optical pick-up block
I RF main beam (D) signal input from the optical pick-up block
I RF sub beam (F) signal input from the optical pick-up block
I RF sub beam (E) signal input from the optical pick-up block
— Power supply pin (+1.8 V)
— Power supply pin (+3.3 V)
I System clock signal input (27 MHz)
O System clock signal output (27 MHz)
— Ground
O Reference voltage (+2 V) output for the optical pick-up block
O Reference voltage (+1.4 V) output
I Current reference signal input
I Laser power monitor signal input from the optical pick-up block
O Laser diode drive signal output for the optical pick-up block
— Power supply pin (+3.3 V)
O Spindle motor control signal output for the motor driver
O Sled motor control signal output for the motor driver
O Mute signal output for the coil/motor driver (for spindle motor)
O CD/DVD select signal output (L: CD, H: DVD)
O Tracking coil control signal output for the coil driver
O Focus coil control signal output for the coil driver
O Write enable signal output for the EEPROM
I/O Two-way audio serial data input/output with the USB controller
— Power supply pin (+3.3 V)
— Ground
I/O USB generating reference current signal input/output
— Power supply pin (+1.8 V)
O Serial clock signal output for the EEPROM
I/O Two-way serial data input/output with the EEPROM
I Serial data input from the system control
O Chip select signal output for the SF-ROM
O Serial data output for the SF-ROM
I Serial data input from the SF-ROM
O Serial clock signal output for the SF-ROM
O Serial data transfer clock signal output for the system control
O Serial data output for the system control
I ICE mode enable setting pin (Not used in this set)
I Reset signal input from the system control (L: reset)
I IR control signal input (Not used in this set)
I/O Two-way data bus input/output with the 64M SDRAM
— Power supply pin (+3.3 V)
I/O Two-way data bus input/output with the 64M SDRAM
— Power supply pin (+1.8 V)
O Data mask signal output for the 64M SDRAM
I/O Two-way data bus input/output with the 64M SDRAM
— Ground
I/O Two-way data bus input/output with the 64M SDRAM
O Data mask signal output for the 64M SDRAM
O Clock signal output for the 64M SDRAM
O Address signal output for the 64M SDRAM
— Power supply pin (+3.3 V)
HCD-GZR88D/GZR99D
Description
75