JVC KD-LX300 Service Manual page 8

BD3860K (IC911) : E. volume
1.Terminal layout
33
34
44
1
2.Bockdiagram
GND FIL VCC SEL1
6 5 9 40
POWER
SUPPLY
INPUT
GAIN
A1 41
0 18 dB
B1 42
C1
43
44
D1
INPUT
SELECTOR
A2 1
2
B2
INPUT
GAIN
C2 3
0 18 dB
D2 4
39
SEL2
3.Pin function
Pin
Symbol Function
No.
1 A2
CH2 Input Pin A
2 B2
CH2 Input Pin B
3 C2
CH2 Input Pin C
4 D2
CH2 Input Pin D
5 FIL
1/2 VCC Pin
6 GND
Ground Pin
7 SI
Serial Data Receiving Pin
8 SC
Serial Clock Receiving Pin
9 VCC
Power Supply Pin
10 OUTR2
CH2 Rear Output Pin
11 OUTF2
CH2 Front Output Pin
12 OUTR1
CH1 Rear Output Pin
13 OUTF1
CH1 Front Output Pin
14 BOUT1
CH1 Bass Filter Setting Pin
15 BNF1
CH1 Bass Filter Setting Pin
16 BOUT2
CH2 Bass Filter Setting Pin
17 BNF2
CH2 Bass Filter Setting Pin
18 TNF2
CH2 treble Filter Setting Pin
19 TNF1
CH1 treble Filter Setting Pin
20 TIN2
CH2 treble Input Pin
21 BBOUT2
CH2 BBE II Signal Output Pin
22 MIX2
CH2 Output MIX Amplifier
Inverse Input Pin
23
22
12
11
VIN1 LOUD1 HF1 LF1 DET1 VCA1 MIX1 BBOUT1
36 35 34 33 28
MAIN
VOLUME
LOW(f=50Hz) 6dB
0 -40 dB
PROCESS CONTROL +3 to 12dB
LOUDNESS
(f=10kHz)
LOGIC
MAIN
VOLUME
LOW(f=50Hz) 6dB
0 -40 dB
PROCESS CONTROL +3 to 12dB
LOUDNESS
(f=10kHz)
38 37 25 24 26
VIN2 LOUD2 HF2 LF2 DET2 VCA2
Pin
No.
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
TIN1 TNF1 BNF1
32 31 30 29 19 15
TREBLE
-14 +14dB -14 +14dB
TREBLE
-14 +14dB
-14 +14dB
23 22 21 20 18 17
MIX2 BBOUT2 TIN2 TNF2 BNF2
Symbol Function
VCA2
CH2 High Pass VCA Output Pin
LF2
CH2 Low Pass Filter Setting Pin
HF2
CH2 High Pass Filter Setting Pin
DET2
CH2 High Pass Attack/Release Time Setting Pin
NC
Non connect
DET1
CH1 High Pass Attack/Release Time Setting Pin
TIN1
CH1 treble Input Pin
BBOUT1
CH1 BBE II Signal Output Pin
MIX1
CH1 Output MIX Amplifier Inverse Input Pin
VCA1
CH1 High Pass VCA Output Pin
LF1
CH1 Low Pass Filter Setting Pin
HF1
CH1 High Pass Filter Setting Pin
LOUD1
CH1 Loudness Filter Setting Pin
VIN1
CH1 Main Volume Input Pin
LOUD2
VCH2 Loudness Filter setting Pin
VIN2
CH2 Main Volume Input Pin
SEL2
CH2 Input Gain Output Pin
SEL1
CH1 Input Gain output Pin
A1
CH1 Input Pin A
B1
CH1 Input Pin B
C1
CH1 Input Pin C
D1
CH1 Input Pin D
KD-LX300/KD-LX100
BOUT1
14
FADER
13
CH1 FRONT
BASS
0 -5 dB
FADER
12
CH1 REAR
0 -5 dB
7
8
FADER
CH2 REAR 10
0 -5 dB
BASS
FADER
CH2 FRONT 11
0 -5 dB
16
BOUT2
OUTF1
OUTR1
SI
SC
OUTR2
OUTF2
1-27