Read Sony CX-LDB10 / CX-LDB20 Service Manual online
13
CX-LDB10/LDB20
• IC Pin Function Description
CONTROL BOARD IC401 M30392MCP-A08FPU0 (SYSTEM CONTROLLER)
CONTROL BOARD IC401 M30392MCP-A08FPU0 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
MIACK
I
MP3 MIACK signal input terminal (from IC301)
2
MP3RST
O
MP3 RST signal output terminal (to IC301)
3
MP3REQ
I
MP3 REQ signal input terminal (from IC301)
4
MICS
O
MP3 MICS signal output terminal (to IC301)
5
MILP
O
MP3 MILP signal output terminal (to IC301)
6
MP3STB
O
MB3 STB signal output terminal (to IC301)
7
RMC_IN
I
Remote commander signal input terminal
8
VSS1
—
Ground terminal
9
CN VSS
—
Not used (Fixed to “L”)
10
I_XT1
I
Sub system clock input terminal (32.768KHz)
11
O_XT2
O
Sub system clock output terminal (32.768KHz)
12
RESET
I
System reset input terminal (from Q401)
13
XIN
O
Main system clock output terminal (16MHz)
14
VSS
—
Ground terminal
15
XOUT
I
Main system clock input terminal (16MHz)
16
VCC1
—
Power supply terminal (+3.3V)
17
NMI
—
Not used (Fixed to “H” (+3.3V))
18
RDSCLK
I
RDS CLK signal input terminal
19
CD SCOR
I
CD Q-data request terminal (from IC101)
20
POWER_DOWN
I
POWER_DOWN signal input terminal (from IC403)
21
TA_BIAS
O
TA_BIAS control signal output terminal (to Q256 and Q257)
22
TA_R/P
I
TA_REC/PLAY control signal input terminal
23
AU_ MUTE
O
Not used (Fixed to “L”)
24
MICK
O
MP3 CLK signal output terminal (to IC301)
25
MIDIO_I
I
MP3 data input terminal (from IC301)
26
MIDIO_O
O
MP3 data output terminal (to IC301)
27
CD_DATA
O
CD_DATA output terminal (to IC101)
28
CD_SENS
I
CD_SENS signal input terminal (from IC101)
29
CD_CLK
O
CD_CLK signal output terminal (to IC101)
30
F_DATA
O
F_DATA signal output terminal (to IC101)
31 to 42
G1 to G12
O
DSP data output terminal (to FL401)
43 to 51
S1 to S9
O
DSP data output terminal (to FL401)
52
VEE
—
Power supply terminal (FL-29V)
53 to 59
S10 to S16
O
DSP data output terminal
60, 61
NC
—
Not used (Open)
62
VCC2
—
Power supply terminal (+3.3V)
63
NC
—
Not used (Open)
64
VSS
—
Ground terminal
65 to 67
NC
—
Not used (Open)
68
EPM
—
Not used (Fixed to “L”)
69
CD_OPEN
I
CD_OPEN/CLOSE signal input terminal (from S820)
70
TU_MUTE
O
TUNER_MUTE signal output terminal
71
TU_STEREO
I
TUNER_STEREO control signal input terminal
72
TUNED
I
TUNED control signal input terminal
73
PLL_CE
O
TUNER_CE output terminal
74
KEY_WAKEUP
O
KEY WAKEUP output terminal (from D420)
75
DL
O
TUNER CLOCK output terminal
Click on the first or last page to see other CX-LDB10 / CX-LDB20 service manuals if exist.