Read Sony MEX-BT2500 Service Manual online
35
MEX-BT2500
FIL
20
GND
19
SDA
18
SCL
17
MUTE
16
VCC
15
OUT-FR
14
OUT-FL
13
OUT-RR
12
OUT-RL
11
FADER
VCC
FADER:
0 – -62dB/1dB step
0 – -62dB/1dB step
TREBLE:
• fc = 10kHz
• GAIN =
• fc = 10kHz
• GAIN =
±20dB/1dB step
• Q = 1
BASS:
• fc = 100Hz
• GAIN =
• fc = 100Hz
• GAIN =
±20dB/1dB step
• Q = 1
VCO
I
2
C BUS
LOGIC
FADER
FADER
FADER
BUS-RCH
1
BUS-LCH
2
TU-RCH
3
TU-LCH
4
CD-RCH
5
CD-LCH
6
AUX-RCH
7
DN1
8
DN2
9
AUX-LCH
10
INPUT SELECTOR
INPUT GAIN
(0 – -20dB/1dB step)
PRIMARY VOLUME
(+12dB – -20dB/1dB step)
MUTE
BASS/TREBLE
VCC/2
IC401 BD3444FS-E2
– KEY Board –
IC901 LC75836WH-US-E
36 COM2
35 COM1
35 COM1
34 S34
33 S33
32 S32
31 S31
30 S30
29 S29
28 S28
27 S27
26 S26
25 S25
33 S33
32 S32
31 S31
30 S30
29 S29
28 S28
27 S27
26 S26
25 S25
15
S15
16
S16
13
S13
14
S14
17
S17
18
S18
19
S19
20
S20
21
S21
22
S22
23
S23
24
S24
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
38
COM4
37
COM3
43
VSS
42
VDD2
41
VDD1
40
VDD
48
DI
47
CL
46
CE
44
OSC
39
S35
45
INH
COMMON
DRIVER
CLOCK
GENERATOR
CCB INTERFACE
SHIFT REGISTER
CONTROL
REGISTER
SEGMENT DRIVER & LATCH
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