2 of 2

Digital Time/Frequency Processor

3681

206-01

®

Front 6-Channel Amplifier

(Optional)

Front

Mid Bass

Front

Mid Bass

Right/Front

Midrange

Right/Front

Tweeter

Left/Front

Midrange

Left/Front

Tweeter

0.5V

G A I N

0.1V

2V

2

1 /

O F F

O N

I N P U T M O D E

ST

1 (MONO)

1 + 2

0.5V

GAIN

0.1V

2V

0.5V

G A I N

0.1V

2V

INPUT MODE

ST

3 (MONO)

3 + 4

INPUT MODE

ST

5 (MONO)

5 + 6

INPUT CHANNEL

1 + 3

O F F

O N

O F F

O N

C H A N N E L

F I L T E R

F I L T E R

F I L T E R

4

3 /

C H A N N E L

6

5 /

C H A N N E L

O F F

O N

A C O U S T I C C O M P E N S A T I O N

2 + 4

5 / 6

3 / 4

/

6/5/4/3 CHANNEL
POWER AMPLIFIER

3 5 6 6

Ch. 5

Ch. 6

Ch. 1

Ch. 3

Ch. 2

Ch. 4

To

Channel

5 & 6
Input

To

Channel

3 & 4
Input

To

Channel

1 & 2
Input

RCA

Extension

(Optional)

RCA

Extension

(Optional)

RCA

Extension

(Optional)

DX

R. MONI

POWER

CNTRST

+/R/F

-/L/R

PUSH
MODE
LOUD

1

2

3

4

5

6

B. SKIP

P.S. DN

P.S.

UP

R. EJECT

REPEAT

MONO

SCAN

P. SCAN

DISC

TAPE

TUNER

BAND

TUNE

UP/FF

DN/REW

TUNER / CASSETTE DECK

7618

HLTAC

II

CD Shuttle Control

SEEKA. MEMO

ST MONO

MTL

DX REPEAT ALL

M.I.X.

LOUD

R. MONI

D. DISP

PROG

M.C.P. / M.I.X.

DOLBY B•C NR

B

C

C O M P A C T D I S C C H A N G E R 5 9 5 7 S

COMPACT

DIGITAL AUDIO

To

Channel

5 & 6
Input

To

Channel

3 & 4
Input

To

Channel

1 & 2
Input

RCA

Extension

(Optional)

RCA

Extension

(Optional)

RCA

Extension

(Optional)

0.5V

G A I N

0.1V

2V

2

1 /

O F F

O N

I N P U T M O D E

ST

1 (MONO)

1 + 2

0.5V

GAIN

0.1V

2V

0.5V

G A I N

0.1V

2V

INPUT MODE

ST

3 (MONO)

3 + 4

INPUT MODE

ST

5 (MONO)

5 + 6

INPUT CHANNEL

1 + 3

O F F

O N

O F F

O N

C H A N N E L

F I L T E R

F I L T E R

F I L T E R

4

3 /

C H A N N E L

6

5 /

C H A N N E L

O F F

O N

A C O U S T I C C O M P E N S A T I O N

2 + 4

5 / 6

3 / 4

/

6/5/4/3 CHANNEL
POWER AMPLIFIER

3 5 6 6

Ch. 5

Ch. 6

Ch. 3

Ch. 2

Ch. 4

Ch. 1

2

5

3

1

7

8

6

4

CD Shuttle Controller
DIN Connector

A

CD Shuttle
DIN Connector

2

5

3

4

1

7

6

8

B

5

Left Signal

6

Battery

7

Ignition

8

Power Supply Ground

1

Data Bus

2

Signal Ground

3

Data Ground

4

Right Signal

B

A

5957S / 5959S

FIXED PRE-OUT

ON

OFF

Fixed Level Output
Selector Switch

Be sure to set the "Fixed Level Output" switch to the
"ON" position! The analog input on the 3681 requires
a constant level for the analog to digital converter to
function properly. In the "ON" position the volume control
knob or the remote control will not change the output
level of the Front or Rear outputs.

ADJUST.

MODE

BA

ND

SAVE

SET-UP

GREEN: LOCKED

AMBER: ACTIVE

PUSH

X-OVER

HZ

HIGH

3681

DIGITAL TIME/FREQUENCY PROCESSOR

Ground (Blk)

Battery Lead (Yel)

Fuse Holder (7.5A)

Remote-In (Blu/Wht)

7618

Remote-On
(Blu/Wht)

Rear

Bass

Rear

Bass

Right/Rear

Midrange

Right/Rear

Tweeter

Left/Rear

Midrange

Left/Rear

Tweeter

Rear 6-Channel Amplifier

(Optional)

Optical Fiber Cable
Digital Output