Alto DI4, Service Manual

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DI4 DIGRAM.Sch
Titel Size File: Date:
Drawn By: Sheet
Revision
Model No:
28-Oct-2002
TASY J.S.
DI4 BLOCK DIGRAM
1
1
of
DI4
V1.0
A3
CH1
2 1 3 4
CN12 INPUT
3c 5e 1a 4d 2b
INPUT
3c 5e 1a 4d 2b
LINK
SW23
-20dB ATTENUATION
SW24
-20dB ATTENUATION
LED CONTROL
SW19
8KHz HIGH CUT
2 1 3
OUTPUT
T4
SW22
PHASE
SW21
GND LIFT
SW20
+20dB gain
CH2
2 1 3 4
CN9 INPUT
3c 5e 1a 4d 2b
INPUT
3c 5e 1a 4d 2b
LINK
SW17
-20dB ATTENUATION
SW18
-20dB ATTENUATION
LED CONTROL
SW13
8KHz HIGH CUT
2 1 3
OUTPUT
T3
SW16
PHASE
SW15
GND LIFT
SW14
+20dB gain
CH3
2 1 3 4
CN2 INPUT
3c 5e 1a 4d 2b
INPUT
3c 5e 1a 4d 2b
CN4 LINK
SW11
-20dB ATTENUATION
SW12
-20dB ATTENUATION
LED CONTROL
SW7
8KHz HIGH CUT
2 1 3
OUTPUT
T2
SW10
PHASE
SW9
GND LIFT
SW8
+20dB gain
CH4
2 1 3 4
CN5 INPUT
3c 5e 1a 4d 2b
INPUT
3c 5e 1a 4d 2b
LINK
SW5
-20dB ATTENUATION
SW6
-20dB ATTENUATION
LED CONTROL
SW1
8KHz HIGH CUT
2 1 3
OUTPUT
T1
SW4
PHASE
SW3
GND LIFT
SW2
+20dB gain