Sony CDX-GT40U Service Manual page 37

• IC Pin Function Description
MAIN BOARD (2/5) IC501 R5F3650KBDZ78FA (SYSTEM CONTROL) (Former type)
MAIN BOARD (2/5) IC501 R5F3650KBDZ75FA (SYSTEM CONTROL) (New type)
Pin No. Pin Name
1 LCD_SO
2 LCD_CLK
3 NOSE_SW
4 SIRCS
5 UNISO
6 UNISI
7 UNISCK
8 BYTE
9 CNVSS
10 XIN
11 XOUT
12 RESET
13 OSCOUT
14 VSS
15 OSCIN
16 VCC1
17 NMI
18 RC_IN1
19 BUIN
20 SYSRST
21 BUS_ON
22 MC_RX
23 DOOR_SW
24 MC_TX
25 DOOR_ING
26 SYNC_OUT
27 EJECT_OK
28 BEEP
29 I2C_SCL
30 I2C_SDA
31 FW_TXD
32 FW_RXD
33 FW_CLK
34 FW_BUSY
35 XM_TX
36 XM_RX
37 XM_POWER EN
38 CD_ON
39 CDM_ON
40 WAKE_UP
41 EPM
42 Z_MUTE
43 R/S SW_SEL
44 EQ_TYPE__SEL
45 INITCOL_SEL
46 CE
47 HIT2_SDA
48 HIT2_SCL
49 HIT2_RESET
50 EN_USB
51 VBUS_ON
52 FLT_USB
53 EN_SYS
54 IPOD
CDX-GT40U/GT40UW/GT42UE/GT44U/GT45U/GT47UE
I/O
O Serial data output for LCD driver
O Serial clock signal output for LCD driver
I Front panel detach/attach detect input
I Remote control signal (infrared) input
O SONY BUS serial data output
I SONY BUS serial data input
O SONY BUS serial clock signal output
I External data bus width select signal input (Connect to VSS in this set)
I Flash writer IF (CNVSS) signal input (L: normally operation, H: fl ash write)
I Low speed operation clock signal input (32.768 kHz)
O Low speed operation clock signal output (32.768 kHz)
I System reset signal input
O High speed operation clock signal output (7.92 MHz)
― Ground terminal
I High speed operation clock signal input (7.92 MHz)
― Power supply terminal (+3.3 V)
I Non-maskable interrupt signal input (Fixed at H in this set)
I Rotary commander shift key signal input
I Backup power supply detect signal input
O System reset signal output
O VBUS power control signal output
I MC-BUS communication MECHA (MG-101CA) TX signal input
O Not used. (Open)
O MC-BUS communication MECHA (MG-101CA) RX signal output
O Not used. (Open)
O DD converter frequency control signal output
O Not used. (Open)
O Beep signal output for the power amplifi er IC
O IIC communication serial clock signal output
I/O IIC communication serial data input/output
O Flash writer IF (serial data) output
I Flash writer IF (serial data) input
I Flash writer IF (serial clock) signal input
O Flash writer IF (busy) signal output
O Not used. (Open)
O Not used.
O Not used.
I CD mechanism servo power supply control request signal input
I CD mechanism deck power supply control request signal input
O CD mechanism deck micon wake up signal output
O EPM signal output (Fixed at L in this set)
I Z mute signal input
O Not used. (Open)
O Not used. (Open)
O Not used. (Open)
O CE signal output (Fixed at H in this set)
I/O Tuner serial data input/output
O Tuner serial clock output
O Tuner reset signal output
O USB over current detect IC control signal output
I VBUS power supply control signal input (L: VBUS OFF, H: VBUS ON)
I USB over current detect signal input
O Power control DC/DC signal output
O iPod connection mode signal output
Description
"L": With panel, "H": Without panel
Note: Refer to "ABOUT CHANGE OF THE LCD DRIVER IC (IC901)
ON THE KEY BOARD" on page 7 for New/Former types of IC501.
Ver. 1.3
37