Sony XT-XM1 Service Manual ▷ View online
4
XT-XM1
SECTION 3
DIAGRAMS
Note on Printed Wiring Board:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
3-1.
NOTE FOR PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
C
: panel designation.
•
A
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) and master unit connected
conditions.
no mark : XM
conditions.
no mark : XM
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: XM
E
: AUDIO (AUX)
Caution:
Pattern face side:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side) the parts face are indicated.
XT-XM1
5
5
• IC Block Diagrams
IC103
TA2050F (EL)
IC106
BA8272FV-E2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 NC
IN(–)1
IN(+)1
IN(+)2
IN(–)2
NC
NC
NC
OUT1
VREF
NC
GND
NC
VCC
NC
OUT2
1
2
3
4
5
6
7
8
9
10
14
13
12
11
VCC
BUS ON
LINK OFF
CLK OUT
DATA OUT
DATA IN
BUS RESET
BUS DATA
VREF
BUS CLK
GND
BUS ON IN
BUS ON OUT
RESET
RESET
SWITCH
• Waveform
1
IC107
qs
(OSC2)
2.7 Vp-p
54 ns
3-2.
IC PIN FUNCTION DESCRIPTION
•
IC107 MN101C49GYB1 (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VREF–
I
Reference voltage (0V) input terminal (for A/D converter)
2
FLASH
I
Internal flash memory data write mode detection signal input terminal “L”: data write mode
3 to 9
(IN-L)
I
Not used
10
VREF+
I
Reference voltage (+5V) input terminal (for A/D converter)
11
VDD
—
Power supply terminal (+5V)
12
OSC2
O
Main system clock output terminal (18.432 MHz)
13
OSC1
I
Main system clock input terminal (18.432 MHz)
14
VSS
—
Ground terminal
15
XI (VSS)
I
Sub system clock input terminal Not used
16
XO
O
Sub system clock output terminal Not used
17
MMOD (VSS)
I
Memory mode selection signal input terminal Not used
18
TX
O
IS bus “TXRX” signal output terminal
19
RX
I
IS bus “TXRX” signal input terminal
20
IS FOUT
O
IS bus “FRAME” signal output terminal
21
SO
O
Serial data output to the SONY bus interface
22
SI
I
Serial data input from the SONY bus interface
23
SCLK
O
Serial clock signal output to the SONY bus interface
24
GND
—
Ground terminal
25
LINKOFF
O
Bus on/off control signal output “L”: bus on
26
BUSON
I
Bus on/off control signal input from the SONY bus interface “H”: bus on
27
(IN-L)
I
Not used
28
BU IN
I
Battery detection signal input terminal “L” is input at low voltage
29
IS FIN
I
IS bus “FRAME” signal input terminal
30, 31
(IN-L)
I
Not used
32
VDD2
—
Power supply terminal (+5V)
33
X T RESET
I
System reset signal input from the reset signal generator “L”: reset
“L” is input for several 100 msec after power on, then it changes to “H”
“L” is input for several 100 msec after power on, then it changes to “H”
34 to 40
(IN-L)
I
Not used
41
VPP
—
Power supply terminal (+5V)
42
PC-TX
O
Not used
43
PC-RX
I
Not used
44
NC
—
Not used
45
E2PROM-SCL
O
Serial data transfer clock signal output to the EEPROM
46
NC
—
Not used
47
E2PROM-SDA
I/O
Two-way data bus with the EEPROM
48 to 62
NC
—
Not used
63
X M-RESET
O
Reset signal output to the MAIN board “L”: reset
64
X M-STANDBY
O
Standby signal output to the MAIN board “L”: standby
65
P-ON
O
+9V power supply on/off control signal output “H”: power on
66
SELECT (H-XM)
O
Relay drive signal output “H”: XM on
67
X MUTE
O
Muting on/off control signal output “L”: muting on
68 to 94
NC
—
Not used
95
DAVSS
—
Ground terminal (for D/A converter)
96to 99
NC
—
Not used
100
DAVDD
—
Power supply terminal (+5V) (for D/A converter)
XT-XM1
6
6
3-3.
PRINTED WIRING BOARD – TRANSLATOR Board (Component Side) –
IC101
IC102
IC107
1
25
26
50
51
75
100
76
IC108
IC105
IC103
IC104
IC106
(COMPONENT SIDE)
TRANSLATOR BOARD
5
1
1
2
3
S
G
D
S
G
D
MAIN
BOARD
1-684-839-
11
1
2
3
4
5
6
7
8
9
10
11
A
B
C
D
E
F
G
H
I
D102
H-3
D103
I-5
D104
D-5
D105
D-5
D106
D-5
D107
C-5
D108
C-4
D109
C-6
D110
C-7
D111
C-11
D112
C-11
D113
D-7
D114
C-9
D115
G-11
D116
I-4
D117
C-5
D118
C-5
IC101
H-1
IC102
I-6
IC103
F-10
IC104
G-9
IC105
F-8
IC106
E-5
IC107
H-8
IC108
G-9
Q101
I-3
Q102
I-3
Q103
I-5
Q104
I-5
Q105
D-5
Q106
D-10
Q107
D-7
Q108
E-6
Q109
E-7
Q110
C-9
Q111
I-9
Q112
H-9
Q113
H-10
Q114
D-7
Q115
I-4
• Semiconductor
Location
Ref. No.
Location
XT-XM1
7
7
3-4.
PRINTED WIRING BOARD – TRANSLATOR Board (Conductor Side) –
CN105
L
IN
R
CN104
L
OUT
R
AUDIO
(FOR SONY BUS)
IN
(FOR SONY BUS)
OUT
SONY BUS CONTROL
1
2
F1
BATT GND
BLK
YEL
POWER
DC12V
1
2
6
10
5
1
(CONDUCTOR SIDE)
TRANSLATOR BOARD
1-684-839-
11
MAIN
BOARD
1
2
3
4
5
6
7
8
9
10
11
A
B
C
D
E
F
G
H
I
D101
C-11
• Semiconductor
Location
Ref. No.
Location