NORTHROP GRUMMAN T6MC User Documentation page 54

125 mA for 110 V Setting
63 mA for 220 V Setting 1
120V T1
L
220V
V1 0V
110V
120V
VOLTAGE SELECTOR
2
0V
N
6VA
E
NON-PCB COMPONENTS
CN2
3
SIDETONE 5
6V 12V
R7
10k
C6
IC3a
2µ2
5
+ 8 R8
100k
7 3
C5
R6 1458 +
2µ2
2
10k
6
MIC 6 - 4 1458
RV1
LIVE
2
100k
-
R5
MIC GAIN
R11
680R
1k8
1
MIC 1
EARTH C7
2µ2
4
PTT 7
0V
EARTH
C8
2µ2
Tr1
J174
C9
2µ2
Tr3
BC
182
5
PTT 3
Park Air T6MC Controller
1A
FS2
D1
1N4004
500 mA
FS1 12V 6V
POWER
ON/STANDBY
BL
SWITCH
D15 TP2 TP3
S2
TP1
IC7
7812
24V
R1
680R
C1 C2 C3
1000µ 2µ2 2µ2
D2 C4
6V2 2µ2
0V
6V
D17 D18
R20
1N4148 1N4148
IC2b 6k8
3
R52 R21 R22
+ 8
IC3b
R16 3k3 3k3 3k3
1
10k
R53 1458
5k6
2 C10
- 4 C30 C12 C11
100n
1
R17
22n 68n 1n5
1K
R10
150k R18
27k
R19
6k8 LK5
LINE LEVEL
REMOVE LINK
FOR 0 dBm,
C27
FIT LINK
2µ2
FOR -13 dBm
0V
12V
R12
2M2
Tr2
BC182
S4
OFF
INTERCOM
R13 R14 R15 ON
150R 10k 100k
12V
0V
RLA
D5 D6
2 2
1N4148 1N4148
D16
1N4004
12V
6V
C13
R27
IC8
2
100µ
R23
47k
+ 4
25V
560R
3 RLA/1 5
759 +
R26
1 C26
- TAB 100k 3240
2µ2
6
-
D4
R28
12V R29
R25 47k
1k8
D3 560R
C16
12V
2µ2
0V 0V
R30
560k
T2
TF1 Tr5
600R
BC182
C17
2µ2
Tr6
BC182
RLA/2
R31 R32
150R 10k
RLB RLB/1
RLB/2
NOTE...
SHOWN IN THE RECEIVE MODE
CN1
11
12
10
9
8
12V
R54
1k
D19 'SUPPLY'
0V
R39
1k TP4
D8 'BUSY'
Tr7
BC182
D7
1N4148
1 2 3 4 5 6
R44
10k
CN3 PTT
0V
R42
5k6
R36 R38
10k 27k
IC1a
IC2a
6
C25
7 - R43
100µ
R37
5k6
7
10k 1458 15
C28
5
220p
6V +
C19
2µ2
RV2
LS
2
100k
12V
R40
C18 39k C24 1
2µ2 100µ
12V 3 C29 14
R35 100n
VOL
1 LK3
10k
IC4
RV3
7
10k 2 TDA 2
2
13
- 8 2611
1
8
C23
1 4
3240 100µ
6 C22
3
100n
C20
+ 4
2n
R33 C21
IC1b
100k 2µ2
R41
R34
3R3
22k
0V
1
2
3
4
5
6
7
Fig 7-6 T6MC Controller Circuit Diagram
Back to Disk Menu
EXT DC SUPPLY + V
EXT DC SUPPLY -V
NOT USED
TAPE/SIDETONE O/P
CRADLE
SWITCH
EXT LS O/P
OPTION REMOVE LINK
LK3 FOR HANDSET
CRADLE LS SWITCHING
L1
600R LINES FOR
L2 2-WIRE WORKING
EXT PTT
L2 TX
L2 RX
LINES FOR
L1 TX 4-WIRE WORKING
L1 RX