Sony XES-Z50 Service Manual ▷ View online
– 53 –
Pin No.
Pin Name
I/O
Function
40
NCO
O
41
NCO
O
42
NCO
O
Not used (open)
43
NCO
O
44
NCO
O
45
KEY ILL
O
Output of power on/off control signal for the rotary commander illumination power supply
“H”: power on
“H”: power on
46
XTEST
I
47
COLOR
O
Selection output of the illumination color Not used (open)
48
ANT REM
O
Antenna remote control signal output terminal
At the reception with tuner, “H” is output when power antenna starts
At the reception with tuner, “H” is output when power antenna starts
49
TUNER ON
O
Output of power on/off control signal for the tuner power supply “H”: tuner on
50
MECHA ON
O
Power on/off control signal output of the front panel attach/remove mechanism circuit
“H” is output during front panel attachment or removal operation
“H” is output during front panel attachment or removal operation
51
INDASH
I
Input of main unit install position detection
“L”: Installed in dash board, “H”: Installed under seat, etc.
“L”: Installed in dash board, “H”: Installed under seat, etc.
52
TESEMOD
I
Input terminal for setting test mode
This terminal is read at the reset, and if “L”, the test mode is forcibly activated
This terminal is read at the reset, and if “L”, the test mode is forcibly activated
53
FG
I
Input of front panel attach/remove operation detection During attach/remove operation, pulses
of constant interval are input, or in stop status, “L” or “H” is always input
of constant interval are input, or in stop status, “L” or “H” is always input
54
PNL SW4
I
55
PNL SW3
I
Detection input of the front panel position detect switch (S23)
“L”: When front panel is completely pulled in (completion of attachment)
“L”: When front panel is completely pulled in (completion of attachment)
56
PNL SW2
I
Detection input of the front panel position detect switch (S22)
“L”: When front panel is half pulled in
“L”: When front panel is half pulled in
57
PNL SW1
I
Detection input of the front panel position detect switch (S21)
“H”: When front panel is at the position where it can be attached or removed
“H”: When front panel is at the position where it can be attached or removed
58
PNL M–
O
Output of control for front panel attach/remove mechanism drive motor (M1) *1
59
PNL M+
O
Output of control for front panel attach/remove mechanism drive motor (M1) *1
60
RESET
I
61
SIRCS
I
Sircs signal input from the remote control receiver in display unit
62
BU IN
I
Backup power supply detect signal input from the bus interface (IC503) (for SONY bus)
63
ACC IN
I
Accessory power supply detect signal input terminal “L”: accessory on
64
NOSE SW
I
Detection input of the front panel attach/remove detect switches (S1 and S2)
There are two detection switches, and if both are off, “H” is input
Or, if either one is on, “L” is input
“L”: When front panel is attached, “H”: When front panel attachment or removal is
completed
There are two detection switches, and if both are off, “H” is input
Or, if either one is on, “L” is input
“L”: When front panel is attached, “H”: When front panel attachment or removal is
completed
System reset signal input from the reset signal generator (IC504) and reset switch (S51) (or
(S42) when using connector box and display holder)
(S42) when using connector box and display holder)
“ L ” : reset
For several hundreds
msec. after the power supply rises, “L” is input, then it changes to “H”
Also, when the reset switch (S51) is pressed, “L” is input
Also, when the reset switch (S51) is pressed, “L” is input
Signal input from the front panel attach/remove detect switches (S1 and S2) when the front
panel is attached to the control unit
There are two detection switches, and if both are off, “H” is input
Or, if either one is on, “L” is input
“L”: When front panel is attached, “H”: When front panel attachment or removal is completed
Signal is input from the nose detection switch (S41) when connector box and display holder
are used “L” is input when the front panel is attached
panel is attached to the control unit
There are two detection switches, and if both are off, “H” is input
Or, if either one is on, “L” is input
“L”: When front panel is attached, “H”: When front panel attachment or removal is completed
Signal is input from the nose detection switch (S41) when connector box and display holder
are used “L” is input when the front panel is attached
Detection input of the personal computer connection
“H”: When display panel is attached at front panel position
“L”: When personal computer communication accessory is attached
“H”: When display panel is attached at front panel position
“L”: When personal computer communication accessory is attached
– 54 –
Pin No.
Pin Name
I/O
Function
65
KEY ACK
I
Input of acknowledge signal for key input Input of acknowledge signal to accept FUNCTION
and EJECT keys when the power is in off status ON at “L” input
and EJECT keys when the power is in off status ON at “L” input
66
AUX ON
I
Input of auxiliary input (AUX IN) on/off detection Input terminal to turn on the set
simultaneously when an external unit connected to the AUX IN terminal is turned on, if the
power of the set is off “L”: When external unit is turned on
simultaneously when an external unit connected to the AUX IN terminal is turned on, if the
power of the set is off “L”: When external unit is turned on
67
NCO
O
Not used (open)
68
VDD
—
Power supply terminal (+5V)
69
X2
O
Main system clock output terminal (5 MHz)
70
X1
I
Main system clock input terminal (5 MHz)
71
IC
—
Ground terminal
72
XT2
O
Sub system clock output terminal (32.768 kHz)
73
XT1
I
Sub system clock input terminal (32.768 kHz)
74
AVDD
—
Power supply terminal (+5V) (for A/D conversion)
75
AVREF0
I
Reference voltage input terminal (+5V) (for A/D conversion)
76
KEY IN0
I
Key (OFF key) input from the front panel section (A/D input)
77
KEY IN1
I
Key (RELEASE key) input from the front panel section (A/D input)
78
RC IN0
I
Key input from the rotary commander (A/D input)
79
RC IN1
I
Key input from the rotary commander (A/D input)
80
ENC +
I
Rotary encoder input from the rotary commander
*1 Motor control
Operation
Stop
Brake
Terminal
PNL M– (pin %•
)
“L”
“L”
“H”
“H”
PNL M+ (pin %ª
)
“L”
“H”
“L”
“H”
When the front
panel is being
removed
When the front
panel is being
attached
– 55 –
MAIN BOARD IC502 MN18P83220S4K (TUNER CONTROLLER)
Pin No. Pin Name I/O Function
1
A5
O
2
A4
O
3
A3
O
4
A2
O
5
A1
O
6
A0
O
7 VDD — Power supply terminal (+5V)
8
X1
I
Main system clock input terminal (8 MHz)
9
X2
O
Main system clock output terminal (8 MHz)
10 GND — Ground terminal
11 XTI I Sub system clock input terminal Not used (open)
12 XTO O Sub system clock output terminal Not used (open)
13 EX1 I Input terminal for setting microcomputer operation mode (fixed at “L”)
14 RESET I
System reset signal input from the system controller (IC501) and reset signal generator (IC504)
“L”: reset For several hundreds msec. after the power supply rises, “L” is input, then it
changes to “H”
“L”: reset For several hundreds msec. after the power supply rises, “L” is input, then it
changes to “H”
15 RDS CLK I Serial data transfer clock signal input from the external device Not used (fixed at “L”)
16 BU IN I Backup power supply detection signal input from the bus interface (IC503) (for SONY bus)
17 BUSON I Bus on/off detection interrupt signal input from the system controller (IC501) “L”: bus on
18 D7 I/O
19 D6 I/O
20 D5 I/O
21 D4 I/O
22 D3 I/O
23 D2 I/O
24 D1 I/O
25 D0 I/O
26 EEP SCK O Serial data transfer clock signal output to the EEPROM (IC516)
27 NCO O Not used (open)
28 BUSY-MA O Not used (open)
29 BUSY-TU O Not used (open)
30 EEP SDA I/O Two-way data bus with the EEPROM (IC516)
31 FM AMS IN I Not used (fixed at “L”)
32 AM ST IN I AM stereo detection signal input from the FM/AM tuner unit “L”: AM stereo
33 NCO O
34 NCO O Not used (open)
35 NCO O
36 NIL I Not used (fixed at “L”)
37 NIL I Not used (fixed at “L”)
38 PLL DI I PLL serial data input from the FM/AM tuner unit
39 PLL DO O PLL serial data output to the FM/AM tuner unit
40 PLL CKO O PLL serial data transfer clock signal output to the FM/AM tuner unit
41 PLL CE O PLL chip enable signal output to the FM/AM tuner unit
42 UNIREQ O
Communication request signal output to the bus interface (IC503) (for SONY bus)
“H”: communication request
“H”: communication request
43 LINK OFF O Bus on/off control signal output of the bus interface (for SONY bus) Not used (open)
Address signal output to the external RAM device Not used (open)
Two-way data bus with the external RAM device Not used (open)
– 56 –
Pin No.
Pin Name
I/O
Function
44
UNICKI
I
Serial data transfer clock signal input from the system controller (IC501)
45
UNISI
I
Serial data input from the bus interface (IC503) (for SONY bus)
46
UNISO
O
Serial data output to the bus interface (IC503) (for SONY bus)
47
VDD
—
Power supply terminal (+5V)
48
AVDD
—
Power supply terminal (+5V) (for A/D conversion)
49
AVREF
I
Reference voltage input terminal (+5V) (for A/D conversion)
50
MS-1
I
Input terminal for PLL IC setting in the FM/AM tuner unit (fixed at “L”)
51
MS-0
I
Input terminal for PLL IC setting in the FM/AM tuner unit (fixed at “L”)
52
SRAM RST
I
Internal RAM reset detection signal input from the reset signal generator (IC517)
Input terminal to check that internal RAM data are not destroyed due to low voltage
Input terminal to check that internal RAM data are not destroyed due to low voltage
53
MUTE SEL
I
Input terminal for setting mute operation (fixed at “L”)
54
DST SEL 1
I
Input terminal for setting destination (fixed at “L”)
55
DST SEL 0
I
Input terminal for setting destination (fixed at “H”)
56
AM VSM
I
AM signal meter voltage detection signal input from the FM/AM tuner unit
57
FM VSM
I
FM signal meter voltage detection signal input from the FM/AM tuner unit
58
AVREF–
I
Reference voltage input terminal (0V) (for A/D conversion)
59
AVSS
—
Ground terminal (for A/D conversion)
60
VSS
—
Ground terminal
61
TU ON
O
Output of power on/off control signal for the tuner system power supply “H”: tuner on
62
LO/DX
O
Local/DX selection signal output terminal Not used (open)
63
SEEK
O
Seek signal output to the FM/AM tuner unit (used for IF count output request, AGC cut etc.)
Output level “L” when change the frequency
Output level “L” when change the frequency
64
AM ON
O
Output of power on/off control signal for the AM circuit power supply, and FM/AM selection
signal output terminal “H”: AM on
signal output terminal “H”: AM on
65
FM ON
O
Output of power on/off control signal for the FM circuit power supply “H”: FM on
66
MUTE
O
Mute control signal output to the FM/AM tuner unit “H”: mute on
67
AF SEEK
I
AF seek control signal input terminal Not used (fixed at “L”)
68
SRAM
I
Chip select signal output to the external RAM device Not used (fixed at “L”)
69
A15
O
Address signal output to the external RAM device Not used (open)
70
ST/MONO
I/O
71
SD
I
Station detector detection signal input from the FM/AM tuner unit
Stop level for SEEK, BTM, etc. is determined SD is present at input of “H”
Stop level for SEEK, BTM, etc. is determined SD is present at input of “H”
72
DIVER
O
Diversity antenna on/off control signal output terminal “H”: antenna on
73
MAIN/SUB
O
Diversity antenna main/sub select signal output to the FM/AM tuner unit
“H”: main, “L”: sub
“H”: main, “L”: sub
74
CE
O
Chip select signal output to the external RAM device Not used (open)
75
A11
O
76
A10
O
77
A9
O
78
A8
O
79
A7
O
80
A6
O
Input of FM stereo detection signal from FM/AM tuner unit, and output of forced monaural
control signal to FM/AM tuner unit (Commonly used for stereo display input and forced
monaural output) FM stereo detection at input of “L”, forced monaural at output of “L”
control signal to FM/AM tuner unit (Commonly used for stereo display input and forced
monaural output) FM stereo detection at input of “L”, forced monaural at output of “L”
Address signal output to the external RAM device Not used (open)
Click on the first or last page to see other XES-Z50 service manuals if exist.