Integra DTR-7.4 Service Manual page 29

A
SCHEMATIC DIAGRAM 9 Main and control terminal sections
1
L201
BLM21A102F
232TXD
232RXD
2 5.6S
+13V
GNDDAC
GNDDAC
+24V
RLGND
RLGND
DTADIM
RXE030
+12V
12TRGB
12TRGA
SPRLF
SPRLZ
POWER
12TRGZ
RXE030
232RXD
232TXD
RI
IRIN
3
4
R231
1K
R232
4
NJM4565M
6
5
Q2913 Q2913
7 1
5
8
NJM4565M
B
1 VDD C4+ 20
2 C1+ GND19
3 VCC C4- 18
C204
4 C1- VSS 17
1/50
C202
5 C5+ STBY16
1/50
6 C5- VCHA15
R201 330
R205
7 14
330
8 13
9 12
R208
R203
10 11
330
D203
0.22
R233
1SS352
Q233
D202
150 2W
G
I O
R234
1SS352
1SS352
NJM78M56
R227
Q221
RN1402
R228
Q223
RN1402
Q2912
R2909
2SB1068
RXE030
Q2911
RN1402
Except TX-
C2922
223J
Q2922
Q2921
RN1402
RN1402
Q231
1K
P6830B
2SC2712
TO NAETC-7694
(SCH. 7)
Q232
P6832B
2SC2712
TO NAETC-7695
(SCH. 7)
R2915
22K
R2908
4
R2919
6
22K 1.5K
Q2910
7
2 5
8
R2916
3
22K
NJM4565M
NAETC-8083
NAAR-8078
U45
U41
P201
RS-232
SUBREQ
MAINCL
MAINSO
SUBSO
330
NET
SUBRES
MAINREQ
SUBPOFF
SDA
SCL
DSPCL
XRESET
D201
DSPDA
XDARST
XDACS
DAMUTE
P203
GNDDSP
GNDDSP
GNDDAC
GNDDAC
+5VDSP
+5VDAC
-15V
+15V
RDSDET
AMUT
Z2MUT
HPMUT
Z2LMUT
TNCL
TNDA
TNCS1
TNCS2
VLSTB
P204
VLDA
VLCL
AFCL
AFDA
AFSTB
STEREO
R212
SD
220
TUMUT
PLLCE
POWER
SPRLF
SPRLZ2
12VTRGZ
12VTRGB
12VTRGA
P202
R211
PDIRECT
100
5.6S
+13S
GNDADIN
RT
Q211
GNDADIN
LT
PC817X DOSBL
GND
DOSBR
GND
DOL
GND2
DOR
GND
R2905
DOSL
2
10K
Q2910
GND
1
DOSR
3
GND
NJM4565M
DOC
GND
DOSW
C
NADIS-7746 (SCH. 1)
P7201B
Q2905
2SC2712
Q2904
Q2906
RN2402
RN2402
HPL
HPE
HPR
GND
GND
GND
+15V
TNCL
TNDA
TNCS1
TNCS2
VLSTB
VLDA
VLCL
AFCL
AFDA
AFSTB
Z2MUTE
AMUTE
HPMUTE
RZ2R
GNDADIN
RT
GNDADIN
LT
GNDADIN
RZ2L
DOSBL
GND
DOSBR
GND
DOL
GND2
DOR
GND
DOSL
GND
DOSR
GND
GND
DOSW
DTR-7.4
D
Q2907
2SC2712
Q29
RN2
E2903
RDSD
+5VD
-15V
GND
+15V
GND
STER
SD
TUMU
VLC
VLDA
PLLC
AFD
AFC
AFST
RZ2R
GNDA
RT
GNDA
LT
GNDA
RZ2L