Sony MEX-BT2800 / MEX-BT2807E / MEX-BT2850 Service Manual ▷ View online
MEX-BT2800/BT2807E/BT2850
29
MUTING
IN3
12
SVR
VP
10
PGND1
8
VP2
6
SCL
4
SDA
2
IN4
14
PGND3
18
ACGND
16
VP1
20
STB
22
PGND4
24
RST
26
REG1
30
RES-CAP
28
GND
32
REG5
34
BU-CUP
36
OUT3– 3
PGND2/TAB 1
OUT3+ 5
MUTING
OUT1– 7
OUT1+ 9
IN1
REF
11
SGND 13
MUTING
OUT2+ 17
OUT2– 19
IN2 15
MUTING
TEMPERATURE & LOAD
DUMP PROTECTION
AMPLIFIER
TEMPERATURE & LOAD
DUMP PROTECTION
VOLTAGE REGULATOR
PROTECTION/
DIAGNOSTIC
CLIP DETECT/
DIAGNOSTIC
ENABLE
LOGIC
STANDBY/
MUTING
IIC-BUS
INTERFACE
OUT4+ 21
OUT4– 23
DIAG 25
SW2
(REGULATOR & SWITCH BLOCK)
27
SW1 29
REG3 31
REG4 33
VP 35
REG2 37
RESET
REGULATOR 1
REGULATOR 3
REGULATOR 4
REGULATOR 2
REGULATOR 5
IC750 TDA8588AJ/N2/R1
MEX-BT2800/BT2807E/BT2850
30
48 S48
47 S47
46 S46
45 S45
44 S44
43 S43
42 S42
41 S41
40 S40
39 S39
47 S47
46 S46
45 S45
44 S44
43 S43
42 S42
41 S41
40 S40
39 S39
19
S19
20
S20
17
S17
18
S18
21
S21
22
S22
23
S23
24
S24
25
S25
26
S26
27
S27
28
S28
3
P3/S3
4
P4/S4
1
P1/S1
2
P2/S2
5
S5
6
S6
7
S7
8
S8
9
S9
10
S10
11
S11
12
S12
52
COM3
51
S51/COM4
59
VSS
58
VDD2
57
VDD1
56
VDD
64
DI
63
CL
62
CE
60
S53/OSCI
55
S52
61
INH
COMMON
DRIVER
CLOCK
GENERATOR
CCB INTERFACE
SHIFT REGISTER
CONTROL
REGISTER
SEGMENT DRIVER & LATCH
13
S13
14
S14
15
S15
16
S16
29
S29
30
S30
31
S31
32
S32
38 S38
37 S37
36 S36
35 S35
34 S34
33 S33
37 S37
36 S36
35 S35
34 S34
33 S33
50
S50
49
S49
54
COM1
53
COM2
– KEY Board –
IC901 LC75829PWH-US-H
MEX-BT2800/BT2807E/BT2850
31
Pin No.
Pin Name
I/O
Description
1
LCD_SO
O
Serial data output to the liquid crystal display driver
2
LCD_CKO
O
Serial data transfer clock signal output to the liquid crystal display driver
3
NOSE_SW
I
Front panel remove/attach detection signal input terminal “L”: front panel is attached
4
SIRCS
I
Remote control signal input from the remote control receiver
5
UNISO
O
SONY bus data output to the bus interface (BT2800: US and Canadian models only)
6
UNISI
I
SONY bus data input from the bus interface (BT2800: US and Canadian models only)
7
UNISCK
O
SONY bus clock signal output to the bus interface (BT2800: US and Canadian models only)
8
BYTE
I
Connect to ground (Pull down)
9
CNVSS
I
Flash write signal input terminal Normally operation: “L”, Flash write: “H”
10
XIN
I
Sub system clock input terminal (32.678 kHz)
11
XOUT
O
Sub system clock output terminal (32.678 kHz)
12
RESET
I
System reset signal input from the reset signal generator and reset switch “L”: reset
13
OSCOUT
O
Main system clock output terminal (11.08 MHz)
14
VSS
-
Ground terminal
15
OSCIN
I
Main system clock input terminal (11.08 MHz)
16
VCC1
-
Power supply terminal (+3.3V)
17
NMI
-
Not used
18
DAVN
I
Synchronize detection signal input of RDS data block Not used
19
BUIN
I
Back up power supply detection signal input terminal “L” is input at low voltage
20
CDM_ON
I
CD mechanism power supply control request signal input terminal
21
Z-MUTE
I
Muting on/off control signal input from the CD section “H”: muting on
22
BT_TEST1
O
Bluetooth section test mode (1) control signal output terminal
23
BT_TEST2
O
Bluetooth section test mode (2) control signal output terminal
24
BT_INT-HF
I
HF operation notifi cation signal input from the Bluetooth section “H” active
25
BT_CVC
O
CVC selection request signal output to the Bluetooth section
“L”: internal microphone CVC, “H”: external microphone CVC
“L”: internal microphone CVC, “H”: external microphone CVC
26
BT_PLAY
O
Key signal output to the Bluetooth section
27
NCO
-
Not used
28
BEEP
O
Beep sound drive signal output to the power amplifi er
29
I2C_SCK
O
IIC serial clock signal output terminal
30
I2C_SIO
I/O
IIC two-way serial data bus terminal
31
FW_TXD
O
Flash write interface serial data signal output terminal
32
FW_RXD
I
Flash write interface serial data signal input terminal
33
FW_CLK
I
Flash write interface serial clock signal input terminal
34
BT_STATUS0
FW_BUSY
I
Status input from the Bluetooth section
35 to 37
BT_STATUS1 to
BT_STATUS3
I
Status input from the Bluetooth section
38
BT_MUTE
I
Muting on/off control signal input from the Bluetooth section
39
BT_FR
O
Key signal output to the Bluetooth section
40
BT_FF
O
Key signal output to the Bluetooth section
41
EPM
I
EPM signal output terminal (fi xed at “L”)
42
RC_IN1
I
Rotary remote commander shift key input terminal
43
SYSRST
O
Reset signal output to the CD section
44
BUSON
O
SONY bus on/off control signal output to the bus interface
(BT2800: US and Canadian models only)
(BT2800: US and Canadian models only)
45
BT_MICPWR
O
Microphone power on/off control signal output to the Bluetooth section “L”: power on
46
CE
-
Not used
47
BT_PWRCTRL
O
Main power on/off control signal output terminal of the Bluetooth section “H”: power on
48
BT_OPRPOW
O
Key signal output to the Bluetooth section
49
BT_MFUNC
O
Key signal output to the Bluetooth section
50
BT_STAPWR
I
Power supply status input from the Bluetooth section “H”: Bluetooth power on
51
BT_RESET
O
Reset signal output to the Bluetooth section “L”: reset
52
CD_ON
I
CD servo power supply control request signal input terminal
53
TESTIN
-
Not used
54
TELATT
I
Telephone attenuator detection signal input terminal
55
ACC_IN
I
Accessory power detection signal input terminal “L”: accessory power on
• IC Pin Function Description
MAIN BOARD IC501 R5F3640DDA17FA (SYSTEM CONTROLLER)
MEX-BT2800/BT2807E/BT2850
32
Pin No.
Pin Name
I/O
Description
56
ATT
O
Muting on/off control signal output terminal “H”: muting on
57
DIAG
I
Diagnostic signal input from the power amplifi er
58
AMPSTB
O
Standby control signal output to the power amplifi er “L”: standby
59
NCO
-
Not used
60
BT_AUDIO_SEL
O
Bluetooth/tuner audio selection signal output terminal “L”: Bluetooth audio
61
NCO
-
Not used
62
VCC2
-
Power supply terminal (+3.3V)
63
NCO
-
Not used
64
VSS
-
Ground terminal
65
ILLUMI SEL
I
Illumination voltage setting terminal “L”: 9.0V, “H”: 10.4V
66
DEMO SEL
I
Demo play setting terminal “H”: demo play on
67
DIM SEL
I
Dimmer selection signal input terminal
68
B-OUT SEL
I
Blackout setting terminal “L”: blackout ineffective, “H”: blackout effective
69 to 72
AREASEL0 to
AREASEL3
I
Model destination signal input terminal
73 to 80
NCO
-
Not used
81, 82
RE-IN1, RE-IN0
I
Jog dial pulse input from the rotary encoder
83
SAIN
I
Spectrum analyzer display data select signal input terminal Not used
84
CYRIL_SEL
I
Cyrillic letter response setting terminal “H”: corresponds to Cyrillic letter
85
TU-ATT
-
Not used
86
NCO
-
Not used
87
RDS_ON
O
Power on/off control signal output terminal for the RDS section Not used
88
NCO
-
Not used
89
SADATD
O
Serial data output terminal Not used
90
SACLK
O
Serial data transfer clock signal output terminal Not used
91
KEYACK0
I
Input of acknowledge signal for the rotary remote commander entry
92
KEYACK1
I
Input of acknowledge signal for the key entry
93
VSM
I
FM and AM signal-meter voltage detection signal input terminal Not used
94, 95
KEYIN1, KEYIN0
I
Front panel key input terminal
96
AVSS
-
Ground terminal
97
RC_IN0
I
Rotary remote commander key input terminal
98
AVRH
I
Reference voltage (+3.3V) input terminal (for A/D converter)
99
AVDD
-
Power supply terminal (+3.3V)
100
LCD_CE
O
Chip enable signal output to the liquid crystal display driver
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