Schematic Diagram - Integra DTR-7.4 Service Manual

A

SCHEMATIC DIAGRAM 1

NADIS-7746
1
U1
DTR7.4 DTR-7.4
COUNTRY MDD MPA
R7276 - -
R7376 10K 10K
R7277 0 0
R7377 - -
2
R7289 0 10K
R7389 - 33K
R7290 - 33K
R7390 10K 56K
R7291 - -
R7391 10K 10K
R7292 - -
R7392 10K 10K
C7214
3
102K
R7371
10K
SYNC
ISS
FLRES
R7386
* R7389
*
R7289
*
R7390
* R7290
* R7391
*
R7291
*
R7392
* R7292
K3
K2
K1
K0
4
5
C7207
U7201
100/6.3
SPS-444-1-VP
B
Display and submicroprocessor sections
P7201A
104Z
C7483
R7271
10K
81 P07/D7
R7282 10K
82 P06/D6
83 P05/D5
R7284 10K
84 P04/D4
85 P03/D3
R7286 10K
86 P02/D2
78:P12/D10
10K
87 P01/D1 79:P11/D9
80:P10/D8
88 P00/D0
*
89 P107/AN7/~KI3
*
*
90 P106/AN6/~KI2
*
*
91 P105/AN5/~KI1
*
1:P96/ANEX1/SOUT4
*
92 P104/AN4/~KI0
* 2:P95/ANEX0/CLK4
93 P103/AN3 3:P94/DA1/TB4IN
R7293 4.7K
4:P93/DA0/TB3IN
94 P102/AN2
R7294 4.7K 5:P92/TB2IN/SOUT3
95 P101/AN1
6:P91/TB1IN/SIN3
R7295 4.7K
96 AVSS 7:P90/TB0IN/CLK3
R7297 4.7K
97 P100/AN0
C7206
98 VREF
104Z
99 AVCC
100 P97/~ADTRG/SIN4
R7397 2.7K
R7395 2.7K
R7394 2.7K
R7393 2.7K
C7297 102K
C7295 102K
C7294 102K
C7293 102K
C7208
104Z
GND
TO NAAR-8078 (SCH-9)
NAETC-7749
P7481
HEADPHONES
C7482 C7481
U4
101J 101J
5.6
D7201
C7204 1SS352
OR 1SS355
474J
P50/~WRL/~ WR 46
P51/~WRH/~BHE 45
51:P43/A19
52:P42/A18
Q7201
53:P41/A17
M30626FHPFP
24:P76/TA3 OUT
P57/~RDY/C LKOUT 39
25:P75/TA2 IN/~W
26:P74/TA2 OUT/W P60/CTS0/RTS0 38
27:P73/~CT S2/~RTS2/TA1IN/~V
28:P72/CLK 2/TA1OUT/V
29:P71/RXD2/SCL/TA0IN/TB5IN
30:P70/TXD 2/SDA/TA0OUT
P64/~CTS1/ ~RTS1/~C 34
R7309
10K
C7213 C7202 C7203
102K 100/6.3 474J
X7201
D7203
R7301
CST16.00MX W0C1
UDZ5.1B
220K
D7202
1SS352 OR 1SS355
C
12.0
C7501
474Z
R7501220
R7502
220
474Z
C7502
474Z
C7509
D7501
UDZ11B
D7502
1SS352
C7510
OR
33/50
1SS355
+12V
GND
+5.6S
C7201
100/6.3
R7250 4.7K
LEDGRE
P44/~CS0 50
R7249 4.7K LEDRED
P45/~CS1 49
R7248 10K RZV1
P46/~CS2 48
R7247 10K RZV5
P47/~CS3 47
R7245 10K RZV4
P52/~RD 44
R7243 10K RZV3
P53/BCLK 43
R7242 10K
RZV2
P54/~HLDA42
R7340
P55/~HOLD41
VBJ 10K
R7240 10K
P56/ALE 40
VAJ R7339
R7239 10K
10K
R7338
10K SUBREQ
R7238 220
MAINSCK
P61/CLK0 37
R7237 220
MAINSO
P62/RXD0 36
R7236 220
SUBSO
P63/TXD0 35
R7235 220
R7234 100
P65/CLK1 33
R7232
R7233
100
P66/RXD1 32
100
P67/TXD1 31 R7231
R7432 100
2.2K
NETRX
NETTX
R7431
220
Q7202
KRA103S
OR RN2403
P7203
FLASH WRITER
DTR-7.4
D
5.0
Q75
KTC
OR 2S
12.0
LEDRED
K
OR 2
LEDGRE
12.0
K0
K1
AUDIO-SEL
K2
S7542
DIRECT
K3
S7574
FM MODE