Sony AIR-SA5R Service Manual ▷ View online
AIR-SA5R
AIR-SA5R
17
17
Note: IC302 on the POWER AMP board cannot exchange with single. When
this part is damaged, exchange the entire mounted board.
4-8. SCHEMATIC DIAGRAM - POWER AMP Board -
• See page 18 for IC Block Diagrams.
E
CN402
MICON
C
BOARD
IF
CN503
BOARD
IC B/D
IC B/D
IC B/D
6.2
6.2
1.3
5.3
6.2
6.2
1.3
3.3
2.7
2.7
2.7
2.7
2.7
2.7
5.3
2.5
5
1.9
1.6
2.8
1
3.3
3
3
6.2
0
6.2
0
3
6.2
0
6.2
0
0
0
5.3
5.3
5.3
0.6
5.3
0
4.6
5.3
1uH
L301
NJM2732RB1(TE2)
IC301
1
2
3
4
5
6
7
8
1k
R308
47k
R304
IC302
IN+
A1
GND
A2
VO-
A3
VDD
B1
PVDD
B2
PGND
B3
IN-
C1
SHUTDOWN
C2
VO+
C3
100p
C331
100p
C324
0.1
C335
4700
R302
4700
R303
10
C306
R103
470k
1k
R106
6P
CN901
1
L-CH
2
R-CH
3
AGND
4
A5V
5
MODULE 3.3V
6
GND
1
C104
IC902
1
VIN
2
ON/OFF
3
VOUT
4
VA
D
J
5
GND
1
C912
1
C204
47
R909
100
R910
470
R911
1k
R912
1k
R913
0.1
C302
0.1
C303
16V
47
C907
1
C902
1
C905
1uH
L302
SP-
SP+
10k
R309
10k
R313
10k
R312
0.001
C328
0.001
C343
0.001
C344
10k
R314
Q101
2SC4154TP-1EF
2SC4154TP-1EF
Q201
10V
100
C914
1SS355TE-17
D902
16V
47
C911
1
C910
1
C913
1
C904
IC901
1
VIN
2
ON/OFF
3
VOUT
4
VA
D
J
5
GND
47
R901
16V
47
C906
470
R902
1k
R903
470
R904
10
C301
100
R301
1k
R914
1k
R905
10k
R306
1k
R206
0
R104
2200
R204
470k
R203
0.047
C213
0.1
C212
6P
CN902
1
SHUTDOWN
2
PreAMP P-ON
3
SA-POWER
4
MAIN P-ON
5
DC 6V
6
GND
Q901
RT3T11M-TP-1
DAP202UT106
D901
RT3T11M-TP-1
Q904
RT3T11M-TP-1
Q301
100p
C325
0.47
C310
0.22
C309
0.22
C322
0.22
C323
2SA1365-T112-1EF
Q902
2SC4154TP-1EF
Q903
4700
R907
470k
R906
47k
R908
1
C114
10
C334
Q905
ISA1602AM1TP-1EF
POWER MONITOR
R915
10k
47p
C901
0.0047
C349
47p
C916
47p
C917
47p
C918
47p
C340
0
R919
0
R917
TPA2034D1YZFR
NJM2387ADL3(TE2)
NJM2387ADL3(TE2)
IC301
LINE AMP
POWER AMP
IC302
IC901
+5V REGURATOR
IC902
+3.3V REGULATOR
SP301
POWER AMP BOARD
BUFFER
Q101, 201
CONTROL
REGULATOR
-2
-1
Q902, 903
B+ SWITCH
-2
-1
REGULATOR
CONTROL
SWITCH
STANDBY
POWER
UNIT
-2
-1
G
V
J
4
B
6
9
11
D
15
H
10
3
5
12
C
F
1
E
8
G
14
A
2
13
I
7
(AC IN)
(Page 13)
(Page 11)
AIR-SA5R
AIR-SA5R
18
18
324 ns
3.3 Vp-p
qd
IC501 3 (BCKIN)
1 V/DIV, 200 ns/DIV
20.8
Ps
3.3 Vp-p
qs
IC501 1 (LRCKIN)
1 V/DIV, 10
Ps/DIV
qf
IC501 4 (MCLK)
2 V/DIV, 50 ns/DIV
82 ns
4.7 Vp-p
qa
IC551 1 (1A)
1 V/DIV, 50 ns/DIV
82 ns
2.7 Vp-p
1
IC401 9 (X2)
1 V/DIV, 20 ns/DIV
62.5 ns
2.9 Vp-p
• Waveforms
– MICON Board –
– IF Board –
+
–
–
3
REFERENCE
VOLTAGE
2
4
1
5
CURRENT
LIMIT
NC
VIN
NC
VSS
VOUT
VOUTL
3
2
1
8
4
7
14
13
BCKIN
DIN
LRCIN
VOUTR
MCLK
5
ZERO
6
DGND
DVDD
10
9
AGND
AV
D
D
VREFP
VREFN
DIGITAL
FILTERS
SIGMA-DELTA
MODULATOR
D/A
CONVERTER
LOW-PASS
FILTER
LOW-PASS
FILTER
CONTROL INTERFACE
12
VMID
11
20
LA
TI2S
D/A
CONVERTER
SIGMA-DELTA
MODULATOR
SERIAL
INTERFACE
MUTING/
ATTENUATOR
MUTING/
ATTENUATOR
19
SCK
18
SDIDEM
17
MUTEB
16
MODE
15
CSBIWL
C2
C1 IN-
+
+
BIASES
&
REFERENCE
RAMP
GENERATOR
SD
INPUT
BUFFER
DEGLITCH
LOGIC
DEGLITCH
LOGIC
GATE
DRIVE
GATE
DRIVE
START-UP
PROTECTION
LOGIC
SC
DETECT
B2 PVDD
B3 PGND
B1
A3
C3
VDD
VO-
VO+
A1
A2
IN+
SHUTDOWN
GND
+
+
+
+
VDD
1
VIN
2
CONTROL
5
GND
3
VOUT
4
VA
D
J
BANDGAP
REFERENCE
OVER VOLTAGE
PROTECTION
OVER CURRENT
PROTECTION
THERMAL
PROTECTION
ON/OFF
CONTROL
REGULATOR
• IC Block Diagrams
– MICON Board –
IC941 XC6201P332MR
– IF Board –
IC501 WM8728SEDS/RV
– POWER AMP Board –
IC302 TPA2034D1YZFR
IC901, 902 NJM2387ADL3 (TE2)
AIR-SA5R
19
Pin No.
Pin Name
I/O
Description
1
KEY-WAKE
I
Key wake-up signal input terminal
2
AC CUT
I
AC cut on/off detection signal input terminal “H”: AC cut on
3
EEPROM-SDA
I/O
Two-way I2C data bus with the EEPROM
4
EEPROM-SCL
O
I2C clock signal output to the EEPROM
5
RESET
I
System reset signal input from the reset signal generator “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it change to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it change to “H”
6, 7
NC(TX2), NC(TX1)
O
Not used
8
FLMD0
I
Flash memory programming mode setting terminal
9
X2
O
System clock output terminal (16 MHz)
10
X1
I
System clock output terminal (16 MHz)
11
REGC
-
External capacitor connecting terminal of regulator output for internal operation
12
VSS
-
Ground terminal
13
VDD
-
Power supply terminal (+3.3V)
14
SA-CLOCK
O
I2C clock signal output to the wireless transceiver
15
SA-DATA
O
I2C data output to the wireless transceiver
16
TEST_DET
I
Test jig detection signal input terminal “H”: jig detect
17
NC
O
Not used
18
SA-INT
I
Interrupt signal input from the wireless transceiver
19, 20
NC
O
Not used
21
SA-RESET
O
Reset signal output to the wireless transceiver “L”: reset
22
DAC-SDA
I/O
Two-way I2C data bus with the D/A converter
23
DAC-SCL
O
I2C clock signal output to the D/A converter
24
LCD-MODE
O
Not used
25
LCD-INH
O
Not used
26
KEY PAIRING
I
PAIRING key input terminal
27
SIRCS
I
SIRCS signal input from the remote control receiver
28
SHUTDOWN
O
Shutdown signal output to the power amplifi er “L”: shutdown
29
POWER-LED
O
LED drive signal output terminal for POWER indicator “H”: LED on
30
SONY-LED
O
LED drive signal output terminal for SONY indicator “H”: LED on
31
LCD-LED
O
LED drive signal output terminal Not used
32
SA-LED
O
LED drive signal output terminal for S-AIR indicator “H”: LED on
33
FLASH_SI
I
Serial data input terminal for fl ash writing Not used
34
FLASH_SO
O
Serial data output terminal for fl ash writing Not used
35
LCD-DA
O
Serial data output terminal Not used
36
LCD-CE
O
Chip enable signal output terminal Not used
37
LCD-CL
O
Serial data transfer clock signal output terminal Not used
38
AVREF
I
Reference voltage (+3.3V) input terminal
39
AVSS
-
Ground terminal
40
SA-ID
I
S-AIR ID selection switch input terminal “L”: A, “M”: B, “H”: C
41
SPEC
I
Destination setting terminal Fixed at “L” in this set
42 to 44
KEY2 to KEY0
I
Top and side panel key input terminal
45, 46
TEST MODE1,
TEST MODE2
I
Test mode setting terminal “H” test mode
47
PreAMP P-ON
O
Power supply on/off control signal output terminal for pre-amplifi er “H”: power on
48
PARING-LED
O
LED drive signal output terminal for PAIRING indicator “H”: LED on
49
COUPLING-LED
O
LED drive signal output terminal for CPL indicator “H”: LED on
50
SA-POWER
O
Power supply on/off control signal output terminal for wireless transceiver “H”: power on
51
MAIN P-ON
O
Power supply on/off control signal output terminal for main power supply “H”: power on
52
TEST MODE3
I
Test mode setting terminal “H” test mode
• IC Pin Function Description
MICON BOARD IC401
μPD78F0526GB (S)-UET-A (SYSTEM CONTROLLER)
20
AIR-SA5R
SECTION 5
EXPLODED VIEWS
1
4-140-559-01 CABINET (REAR) B
2
3-253-143-01 SCREW (B2.6), (+) P TAPPING
3
3-254-151-01 SCREW (B2.6), (+) P TAPPING
4
3-254-070-11 SCREW
0 5
1-474-168-11 POWER UNIT, 6V0.8A
6
4-147-616-01 MAGIC TAPE (B TYPE)
7
4-140-558-01 CABINET
(REAR)
A
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
Note:
• -XX and -X mean standardized parts, so
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Items marked “*” are not stocked since
they are seldom required for routine ser-
vice. Some delay should be anticipated
when ordering these items.
vice. Some delay should be anticipated
when ordering these items.
• The mechanical parts with no reference
number in the exploded views are not sup-
plied.
plied.
• Color Indication of Appearance Parts Ex-
ample:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet’s Color
5-1. REAR CABINET SECTION
The components identifi ed by mark
0
or dotted line with mark
0 are critical for
safety.
Replace only with part number specifi ed.
Replace only with part number specifi ed.
not supplied
not supplied
chassis section
front cabinet section
1
2
4
3
3
5
6
4
4
7
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