JVC KS-LX200R service manual BD3860K IC911 E. volume

KS-LX200R

BD3860K (IC911) : E. volume

1. Pin layout

33	~	23
34		22
~		~
44		12
1	~	11
2. Block diagram
GND FIL VCC	SEL1	VIN1 LOUD1

HF1 LF1 DET1 VCA1 MIX1 BBOUT1 TIN1 TNF1 BNF1 BOUT1

	6	5	9	40	36	35
		POWER
		SUPPLY		INPUT	MAIN
				GAIN	VOLUME
A1	41				0 to -40 dB
				0 to 18 dB	LOUDNESS
B1	42
C1	43
	44

34	33	28	32	31	30	29	19	15	14
						TREBLE			BASS
LOW(f=50Hz) 6dB
PROCESS CONTROL +3 to 12dB						-14 to +14dB		-14 to +14dB
(f=10kHz)

FADER

CH1 FRONT 13 OUTF1 0 to -5 dB

FADER

CH1 REAR 12 OUTR1

0 to -5 dB

7 SI

D1		INPUT
A2	1	SELECTOR
B2	2	INPUT	MAIN
C2	3	GAIN	VOLUME
			0 to -40 dB
D2	4	0 to 18 dB	LOUDNESS
		39	38	37
		SEL2	VIN2	LOUD2

LOGIC

	TREBLE	BASS
LOW(f=50Hz) 6dB	-14 to +14dB
PROCESS CONTROL +3 to 12dB		-14 to +14dB

(f=10kHz)

25	24	26	23	22	21	20	18	17	16
HF2	LF2 DET2 VCA2 MIX2 BBOUT2					TIN2 TNF2		BNF2	BOUT2

8 SC

FADER

CH2 REAR 10 OUTR2 0 to -5 dB

FADER

CH2 FRONT 11 OUTF2 0 to -5 dB

3. Pin function

No.Pin	Symbol	Function	No.Pin	Symbol	Function
1	A2	CH2 input terminal A	23	VCA2	CH2 high frequency VCA output terminal
2	B2	CH2 input terminal B	24	LF2	CH2 low frequency filter setting terminal
3	C2	CH2 input terminal C	25	HF2	CH2 high frequency filter setting terminal
4	D2	CH2 input terminal D	26	DET2	CH2 high frequency attack release time setting
5	FIL	1/2 VCC terminal	27	NC	Non connect
6	GND	Ground terminal	28	DET1	CH1 high frequency attack release time setting
7	SI	Serial data input terminal	29	TIN1	CH1 treble input terminal
8	SC	Serial clock input terminal	30	BBOUT1	CH1 BBE II signal output terminal
9	VCC	Power supply	31	MIX1	CH1 output mix amp. negative input terminal
10	OUTR2	CH2 rear output terminal	32	VCA1	CH1 high frequency VCA output terminal
11	OUTF2	CH2 front output terminal	33	LF1	CH1 low frequency filter setting terminal
12	OUTR1	CH1 rear output terminal	34	HF1	CH1 high frequency filter setting terminal
13	OUTF1	CH1 front output terminal	35	LOUD1	CH1 loudness filter setting terminal
14	BOUT1	CH1 bus filter setting terminal	36	VIN1	CH1 main volume input terminal
15	BNF1	CH1 bus filter setting terminal	37	LOUD2	CH2 loudness filter setting terminal
16	BOUT2	CH2 bus filter setting terminal	38	VIN2	CH2 main volume input terminal
17	BNF2	CH2 bus filter setting terminal	39	SEL2	CH2 input gain output terminal
18	TNF2	CH2 treble filter setting terminal	40	SEL1	CH1 input gain output terminal
19	TNF1	CH1 treble setting terminal	41	A1	CH1 input terminal A
20	TIN2	CH2 treble input terminal	42	B1	CH1 input terminal B
21	BBOUT2	CH2 BBE II signal output terminal	43	C1	CH1 input terminal C
22	MIX2	CH2 output mix amp negative input terminal	44	D1	CH1 input terminal D

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