Yamaha DSP-AX1600, Руководство по обслуживанию

Страница: 106 / 151

A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
RX-V1600/DSP-AX1600
SCHEMATIC DIAGRAM (INPUT 1/2)
106
★
All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
★ Components having special characteristics are marked
s
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
2
3
10
11
12
14
30
1 15
16
17
19
20
21
28
29
Le
v
e
l Shifter
Latch Circuit Le
v
e
l Shifter
Latch Circuit
Control Circuit
R1
R2
R7
R8
R-COM3
DATA
CK
Vss
L1
L2
L7
L8
L-COM3
ST
VDD
VEE
IC301 : NJU7312AM
Analog function switch
6
7
L4
L5 24
25 R4
R5
26
27 R3
R-COM1
4
5
L3
L-COM1
8
9
L6
L-COM2 22
23 R6
R-COM2
2
3
10
11
12
14
30
1 15
16
17
19
20
21
28
29
Le
v
e
l Shifter
Latch Circuit Le
v
e
l Shifter
Latch Circuit
Control Circuit
R1
R2
R7
R8
R-COM3
DATA
CK
Vss
L1
L2
L7
L8
L-COM3
ST
VDD
VEE
IC302 : NJU7313AM
Analog function switch
7
8
L5
L6 23
24 R5
R6
27 R3 4 L3
9
L-COM2
22
R-COM2
5
6
L4
L-COM1
25
26 R4
R-COM1
IC304~308 : NJM2068MD-TE2
Dual OP-Amp
– +
OUT 1
–IN
1
–V
CC
+V CC
OUT
2
1
2
3
4 5
+IN 1 –IN 2
+IN
2
– +
6
7
8
IC310, 311 : YAC526-EZE2
2ch high grade digital volume LSI
IN1
REF1A
OUT1
OUT2
0 ~ -95dB
0 ~ -95dB
0 ~ +31.5dB
0 ~ +31.5dB
REF2A
IN2
Zero
Crossing
Detector
Zero
Crossing
Detector
Control
Register
S/P
Register
16
TE3
ZCEN1
ZCEN2
SDATAO(OpenDrain)
SDATAI
SCLK
CSN
AVSS
DGND
REF
AVDD
REF1B
REF2B
OPAmp
TE2
TE1
Vol A:
15 k-ohms
Vol A:
15 k-ohms
Vol B:
10 k-ohms
Vol B:
10 k-ohms
OPAmp
DVSS
100 ohms
100 ohms
TEST V
SS
CE DI CL V
DD
Vref
RVref LVref
CCB
INTERFACE
ZERO CROSSDET
MULTIPLEXER MULTIPLEXER
LOGIC CIRCUIT
CONTROL CIRCUIT
ZERO CROSSDET
NO SIGNAL
TIMER
TIM
LOUT
5
6
7
8
9
10
11 12 13 14 15 16 17 18 19 20
21
22
23
24
25
26
27 28 29 30 1 2 3 4
ROUT
LBASS2
LBASS1
LTRE
LIN
LSELO
L4 L3 L2 L1 R1
NC NC
R2 R3 R4
RSELO
RIN
RTRE
RBASS1
RBASS2
IC312, 313 : LC75348M
Single-Chip Electronic Volume and Tone Control System
F-SW1
F-SW1: INPUT FUNCTION 1
F-SW2: INPUT FUNCTION 2
*
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
IC303, 309: BD3841FS
Function Switch
DGND
F-SW2
CL DA VEE BIAS VCC RECA1 RECA2 RECB1 RECB2 RECC1 RECC2 OUT1 OUT2 INI1 INI2
INA1 INA2 INB1 INB2 INC1 INC2 IND1 IND2 INE1 INE2 INF1 INF2 ING1 ING2 INH1 INH2
LOGIC
+ – + – + – + –
ANALOG IN
0
0
0
0
0
0
0
0
0
0
0
-6.1
0
0
0
0
6.0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
11.7
12.0
-11.8
-11.7
0
0
0
0
0
0
0
0
0
0
0
12.0
0
0
0
0
12.0
0
0
0
0
-11.8
-11.8
0
0
0
0
0
0
0
0
0
0
0
0
0
-6.1
0
0
0
0
0
0
0
6.1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0 0
12.0
-11.8 12.1
0
0
0
0
-11.9
12.2
0
0
0
0
0
0
0
0
-11.8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0.7 0.7
0.7
0.7
0
0
0
0
0
0
0
0
0.7 0.7
0.7
0.7
0
0
0
4.7
0
9.1
0
4.6
0
0.1
0
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.7
0
0
0
4.6
0
0.1
0
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
0
0
0
0
0
6.1
6.1
6.1
6.1
4.9
-6.1
-1.0
0.1
0
0
0
0
0
0
0
6.1
-6.1
-6.1
6.1
0
0
0
0
4.9
0
0.1
0
0
0
0
0
6.1
6.1
6.1
4.9
-6.1
-1.0
0.1
0
0
0
4.6
6.1
-6.1
-6.1
6.1
4.6
0
0
0
12.2
11.5
11.5
11.9
12.2
4.8
0.1
0
12.2
12.2
11.5
0.1
0
0
0
0
0
0
0
0
0
11.8
12.2
4.9
-12.1
5.0 5.1 0
Page 102
to FUNCTION (2)_CB608
A4 Page 101
to FUNCTION (1)_CB308
D2 Page 101
to FUNCTION (1)_CB309
F2 Page 101
to FUNCTION (1)_CB310
F3
P
age 102
to FUNCTION (2)_CB602
A3
Page 102
to FUNCTION (2)_CB603
B5
Page 102
to FUNCTION (2)_CB609
L5
Page 100
to DSP_W502
H2
Page 105
to POWER (7)_CB324
H2
Page 103
to OPERATION (3)_CB907
F3
Page 102
to FUNCTION (2)_CB607
L4
P
age 102
to FUNCTION (2)_W604
L6
P
age 101
to FUNCTION (1)_CB307
C2
P
age 111
to D-VIDEO_CB501
A2
P
age 108
to A-VIDEO (1)_CB603
F8
P
age 109
to A-VIDEO (2)_CB704
F9
INPUT (3)
INPUT (2)
INPUT (1)
INPUT (4)
INPUT (5)
INPUT
SELECTOR
RECOUT
SELECTOR
RECOUT
SELECTOR
INPUT
SELECTOR
/
RECOUT
PROHIBITION
T-CON EVOL