Sony Walkman D-NE900, Service Manual

Page: 32 / 44

32
D-NE900
• IC801 TMP91CY28FG-2772-01 (SYSTEM CONTROLLER)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44 to 51
52
53
54
55
56
57
I/O
—
—
—
O
O
O
O
I
I
I
I
O
O
I
I
O
O
O
O
I
O
I
O
I
—
O
—
I
I
I
I/O
O
O
O
I
I
I
I
I
I
I
I
—
I/O
I
I
O
O
O
O
Pin Name
GND
GND
VCPU
XRST_O
PWM_O
BEEP_O
AMUTE_O
LINEOUT_I
OPTOUT_I
FG_I
REQ_I
HG-XSTB_O
HG-GUP_O
RE1_I
RE2_I
LCD_REQ_O
SDXLAT_O
SDCLK_O
SDOUT_O
SDIN_I
DTS_SDTO
DTS_SDTI
DTS_SCK
AM0_I
VCPU
XOUT
GND
XIN
AM1_I
XRESET_I
TSB
XWAKE_O
EMU0_O
EMU1_O
ACKCD_I
JOGKEY_I/FAVKEY_I
LID-SW_I
EXTBAT_I
HP_TYPE_I
HOLD_I
X_PEQ_EN_I
TEST_I
NC
AD0 to AD7
FOK_I
GFS_I
TUPWRON_O
CDON_O
AUD_SEL_O
VDSEL
Description
Reference voltage terminal (A/D converter)
Ground terminal (A/D converter)
Power supply terminal (A/D converter)
Reset signal output to the DSP (IC601)
Not used (open)
BEEP signal output
Muting signal output to the headphone amplifier (IC301)
Line plug in detection signal input (“H” : line plug in)
Optical plug in detection signal input (“H” : optical plug in)
FG (3 phase drive) signal input from the power control (IC401)
Request signal input from the MP3 decoder (IC702)
HG sleep mode signal output to the optical-pickup
HG gain up signal output to the optical-pickup
Encoded signal input from the rotary encoder (S2001)
Encoded signal input from the rotary encoder (S2001)
Not used (open)
Serial data latch signal output to the MP3 decoder (IC702)
Clock output to the MP3 decoder (IC702)
Serial data output to the MP3 decoder (IC702)
Serial data input from the MP3 decoder (IC702)
Not used
Not used
Not used
Not used (fixed at “H”)
Power supply terminal
Clock output (not used)
Ground terminal
Clock input
Not used (fixed at “H”)
Reset signal input (“L” : reset)
Data input/output from/to the remote control
Wake signal output to the power control (IC401) (“L” : running)
Not used (open)
Not used (open)
Not used (fixed at “L”)
Key signal input from the jog key or the remote control key
Lid open/close detection signal input (“H” : lid open)
External battery in detection signal input (“H” : external battery in)
Not used
HOLD switch detection signal input (“H” : HOLD on)
Not used
Test mode setting terminal (“L” : test mode)
Not used (open)
Data input/output from/to the liquid crystal display
FOK signal input from the DSP (IC601)
GFS signal input from the DSP (IC601)
Not used (open)
Not used (open)
Not used (open)
Power supply voltage selection signal output
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