Sony ZS-SN10 Service Manual page 31

MAIN BOARD IC801 MB90483BPF-G-153E1 (SYSTEM CONTROLLER)
Pin No. Pin Name
1 to 6 NC
7 EEP-SCL
8 EEP-SDA
9 VOL-DATA
10 VOL-CLK
11 VSS
12 to 14 SIMUKE1 to SIMUKE3
15 MEGABASS
16 TESTA
17 TESTB
18 SENS
19 DATA
20 CLOK
21 A-MUTE
22 P-CON
23 VCC5
24 TU-ON
25 CD3.3V-ON
26 BACKUP-ON
27 R-COUNT
28 R-DATA
29 R-CLOCK
30 R-CE
31 R-MUTE
32 VM-CONT
33, 34 NC
35 AVCC
36 AVRH
37 AVSS
38 NC
39 KEY1
40 KEY2
41 KEY0
42 VSS
43 3.3V-CHECK
44 VOL-CHECK
45 VH
46 VM
47, 48 P80, P81
49 to 51 MD0 to MD2
52 WP
53 CD DOOR
54 AC-IN
55 XLAT
56 SCOR
57 IREQ
58 IDATA2
59 ODATA2
I/O
— Not used
O Serial clock signal output terminal to the EEPROM
I/O Two-way serial data bus with the EEPROM
O Serial data output to the electrical volume
O Serial data transfer clock signal output to the electrical volume
— Ground terminal
I For destination setting terminal
O MEGABASS on/off control signal output terminal
I For CD test setting terminal Fixed at "H" in this set
I For LCD test setting terminal Fixed at "H" in this set
I Internal status (SENSE) signal input from the CD DSP
O Serial data output to the CD DSP
O Serial data transfer clock signal output to the CD DSP
O Audio muting on/off control signal output terminal "H": muting
O Power control signal output terminal "H": active
— Power supply terminal (+3.3V)
O Tuner power on/off control signal output terminal "H": tuner on
O CD power on/off control signal output terminal "H: CD on
O CD power select signal output terminal for power off state "L": power off state
I PLL serial count data input terminal
O PLL serial data output terminal
O PLL serial data transfer clock signal output terminal
O PLL chip enable signal output terminal
O Tuner muting on/off control signal output terminal "H": active
O Battery middle voltage (+4.5V) detection circuit control signal output terminal
O Not used
— Power supply terminal (+3.3V) (for A/D converter)
I Reference voltage input terminal (+3.3V) (for A/D converter)
— Ground terminal (for A/D converter)
O Not used
I Key input terminal (A/D input)
I Key input terminal (A/D input)
I Key input terminal (A/D input)
— Ground terminal
I CD power voltage detection signal input terminal
I Electrical volume power voltage detection signal input terminal
I Battery high voltage (+9V) detection signal input terminal
I Battery middle voltage (+4.5V) detection signal input terminal
I Not used
I For mode setting terminal
I Key interruption processing start signal input terminal
I CD lid open/close detection switch input terminal "L": CD lid is close
I AC voltage detection signal input terminal "L": AC in
O Serial data latch pulse output to the CD DSP
I Subcode sync (S0+S1) detection signal input from the CD DSP
I Codec data request signal input from the CD DSP
I Codec serial data input from the CD DSP
O Codec serial data output to the CD DSP
Description
ZS-SN10
Ver. 1.3
31