Sony MZ-R50 Service Manual - Page 37

Pin No., Pin name, Description, IC801, SYSTEM CONTROL CXP81960M-652R - remote

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IC801 SYSTEM CONTROL (CXP81960M-652R) 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 45 46 47 48 49 50 Pin name CLCS XRST WRPWR TX SENSE LDON XSHOCK ---- INLS PROTECT DATA HOLD WP OPEN CLOCK CLK SDIO EVR DATA PUSH JOG LCD STB CL SCK SDI2 SYNC REC D. B. B XLINEDET AVLS XTEST XDCIN KANA SE L AM3 ON XP CONT LIP ON XREC LED MODE2 MODE1 XRF STBY XLCD ON MP XMRST VSS XTAL EXTAL CS ---- LCD DATA LCD SCK ---- ---- HIDCMNT KEYR AVSS I/O Description O Chip select output to real time clock (IC804). O Reset output. L : Reset O Laser power switching signal output. O Write data transfer timing output. I Internal status (SENSE) input. O Laser ON signal. H : ON I Track jump detection input. - Not used (Open). I Detecting switch for internal circuit of sleding. Internal circuit : L I Disc write protect switch. H : Protect O Data output to remote control. I Hold switch input (This unit). L : Hold I Wake-up signal input from remote control key and this unit key. I Detecting switch for opening and closing of the upper cover. Close : L I CLOCK SET switch input. I Serial clock input. I Electric volume control data input. I Push JOG switch input. O LCD standby output. O Serial clock output for real time clock (IC804). I Serial data input. I SYNCHRO REC switch input. I DIGITAL MEGA BASS switch input. I Line input detect. L : Line I AVLS switch input. L : ON I Test mode terminal. L : Test mode I DC input detect. L : DC IN - Not used (Fixed at "H"). O This is at "H" level during external battery operation. O Power control output. L : ON O Outputs H while operating with a lithium battery. O REC LED control. L : ON O Head drive (IC506) control signal output. O O Power control output to RF amplifier (IC501). O LCD ON/OFF control. L : ON - Microprocessor mode input (Fixed at "L"). I Microprocessor reset input. - Ground. - System clock (12MHz). - System clock (12MHz). - Chip Select input (Connected to +2.8V). - Not used (Fixed at "L"). O LCD data output. O Serial clock output. - Not used (Open). - Not used (Open). I Voltage monitor DC input. I Remote control key input. - Ground terminal for A/D converter. - 37 -

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– 37 –
Pin No.
Pin name
I/O
Description
1
CLCS
O
Chip select output to real time clock (IC804).
2
XRST
O
Reset output.
L : Reset
3
WRPWR
O
Laser power switching signal output.
4
TX
O
Write data transfer timing output.
5
SENSE
I
Internal status (SENSE) input.
6
LDON
O
Laser ON signal.
H : ON
7
XSHOCK
I
Track jump detection input.
8
––––
–
Not used (Open).
9
INLS
I
Detecting switch for internal circuit of sleding.
Internal circuit : L
10
PROTECT
I
Disc write protect switch.
H : Protect
11
DATA
O
Data output to remote control.
12
HOLD
I
Hold switch input (This unit).
L : Hold
13
WP
I
Wake-up signal input from remote control key and this unit key.
14
OPEN
I
Detecting switch for opening and closing of the upper cover.
Close : L
15
CLOCK
I
CLOCK SET switch input.
16
CLK SDIO
I
Serial clock input.
17
EVR DATA
I
Electric volume control data input.
18
PUSH JOG
I
Push JOG switch input.
19
LCD STB
O
LCD standby output.
20
CL SCK
O
Serial clock output for real time clock (IC804).
21
SDI2
I
Serial data input.
22
SYNC REC
I
SYNCHRO REC switch input.
23
D. B. B
I
DIGITAL MEGA BASS switch input.
24
XLINEDET
I
Line input detect.
L : Line
25
AVLS
I
AVLS switch input.
L : ON
26
XTEST
I
Test mode terminal.
L : Test mode
27
XDCIN
I
DC input detect.
L : DC IN
28
KANA SE L
–
Not used (Fixed at “H”).
29
AM3 ON
O
This is at “H” level during external battery operation.
30
XP CONT
O
Power control output.
L : ON
31
LIP ON
O
Outputs H while operating with a lithium battery.
32
XREC LED
O
REC LED control.
L : ON
33
MODE2
O
Head drive (IC506) control signal output.
34
MODE1
O
35
XRF STBY
O
Power control output to RF amplifier (IC501).
36
XLCD ON
O
LCD ON/OFF control.
L : ON
37
MP
–
Microprocessor mode input (Fixed at “L”).
38
XMRST
I
Microprocessor reset input.
39
V
SS
–
Ground.
40
XTAL
–
System clock (12MHz).
41
EXTAL
–
System clock (12MHz).
42
CS
–
Chip Select input (Connected to +2.8V).
43
––––
–
Not used (Fixed at “L”).
44
LCD DATA
O
LCD data output.
45
LCD SCK
O
Serial clock output.
46
––––
–
Not used (Open).
47
––––
–
Not used (Open).
48
HIDCMNT
I
Voltage monitor DC input.
49
KEYR
I
Remote control key input.
50
AV
SS
–
Ground terminal for A/D converter.
IC801
SYSTEM CONTROL (CXP81960M-652R)