Yamaha DSP-AX1, Руководство по обслуживанию

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A
BCD
E
F
G
H
1 2 3 4 5 6
IJ
K
L
7 8
DSP-AX1/RX-V1
REGULA
T
O
R
PLL
MPX
AM/FM IF
10.4
(0)
10.5
(11.5)
0.1
(10.6)
5.1
(5.0)
(4.4)
(0)
5.1
(5.2)
7.7
(7.6)
2.4(1.1)
2.4
(1.1)
2.4(1.1)
0 (0)
11.0 (11.1)
11.0 (11.1)
11.0
(11.1)
0
(0)
3.9 (3.7)
2.3
(2.2)
0(2.1)
3.0 (2.8)
3.4 (2.1)
3.9
(3.5)
3.9 (3.5)
(1.9)
(3.5)
5.0
11.4
(11.5)
5.7
(5.7)
5.7
(5.7)
0
(0)
2.4 (0) 4.9
(5.0)
0
(2.5)
(0)
2.4 4.9
(5.0)
(1.0)
1.0
(1.0)
1.0
(5.0)
4.5
(0)
0
(0)
0
0.1
10.6 (0)
0
(0)
0
(0.2)
11.4
(0)
0
(0)
0
(0)
0
(0)
0
(2.5)
(2.5)
2.4
0
(11.5)
(11.5)
11.4
11.4
(0.2)
(1.5)
3.9
0 (10.5)
1.5
2.4 (1.1)
(2.8)
0
(2.2)
2.6
(2.0)
1.5
1.5
11.0
2.4
(11.1)
3.0
(2.8)
(2.1)
3.1 (3.1)
3.1 (3.1)
3.1 (3.1)
3.1 (3.1)
3.0 (3.0)
3.1 (3.1)
3.1 (3.1)
3.0 (3.0)
3.1 (3.1)
0
(6.9)
11.1(11.2)
3.4
(3.6)
2.8(7.0)
2.8(5.2)
2.8 (5.2)
2.8(9.1)
2.8(2.8)
0 (0)
4.9
(0)
4.9
(5.0)
0 (0)
0
2.8
(9.1)
0
(0)
2.8
(9.1)
4.9
(4.9)
0
(0)
0
(0)
4.4
(5.2)
87.5MHz 98.0MHz
108.0MHz
1.9V 4.5V
7.8V
531KHz
1080KHz 1611KHz
1.3V 5.0V 7.3V
AM FM
9
2.5
MONA
URAL DIST
OR
TION ADJ
.
SIGNAL METER ADJ
.
FM
DISCRIMINA
T
OR BALANCE ADJ
.
SEP
ARA
TION ADJ
.
FM
AM
AM
(9.4)
9.3
0 (0)
AM SENSITIVITY
VT
CIRCUIT CHANGES BY MARKET.
: USED : NOT USED
bottom vie
w
■
SCHEMA
TIC
DIAGRAM
(TUNER
:
RX-V1
only)
*
All voltage are measured with a 10M
Ω
/V DC electric volt meter.
*
Components having special characteristics are marked
Z
and
must be replaced with parts having specifications equal to those originally installed.
*
Schematic diagram is subject to change without notice.
PK1 : ENV-172C8G1R (V2909100) U, C, R, T models
L1
1
L1
L10
C2 5P
C33
2200P
C32
2200P
DT1
MA372
D5
MA110
C5 5P
R3
100K
R4 22
R8 1K
L2
C13
0.018
µ
L3 C31 1.5P
Q1
2SK360
R2
100K
R9 100
DT2
MA372
R5
100K
C8 5P
L5 R28 R7
680K
C10 27P
C9
470P
C29
2P
C17
9P
R15
Q2
2SC2620
L7
R19 10K C24 47P
R23 330
R22 330K
C19
5P
R25
C23 15P
Q6
2SC2619
R17
10
C20 12P
Q4
2SC2814
C18 22P
R14
1.8K
R16 330
R13 10K R12 10K
C27
L6
C15 0.2P
DT4
MA372
R10 2.7K C14 82P
C12
0.018
µ
C26
0.018
µ
ANT
ANT2
GND2
GND3
VT
+B
IF OUT
OSC OUT
1
2
3
4
5
6
7
8
PK1 : ENV-172A4G1 (V2716700) A, B, G, L models
ANT
AGC
GND2
GND3
VT
+B
IF OUT
OSC OUT
C1
1
22P
C1
39P
L9
C28
6P
R1
100K
C2
15P
C31
0.01
µ
C32
0.01
µ
L1
C3
0.75P
DT1
SVC212
R2
100K
C4 7P
R3
100K
C5 10P
Q1
2SK439
R4
150
R8 10K
R26
1.5K R27
390
L2
L3
R9 33
C30
0.018
µ
C13
0.018
µ
C6 7P
DT2
SVC212
DT3
SVC212
R5
100K
R6
100K
L8
C8 4P
L4
C7
2.5P
C10
27P
C26
0.01
µ
C12
0.018
µ
C14 47P
C25
0.01
µ
R10 4.7K
C16
2P
DT4
SVC212
C15
L6
Q5
2SC461
R20
330K
R21 470
C29 2P
C27
0.018
µ
R12 10K
C17 8P
Q4
2SC461
C18 27P
R13 10K
R14 1.8K
C9
470P
R7 1M
Q2
2SC535
R19 C24 47P
R23 330
R22
330K
C19
5P
C20 12P
R24
10
Q6
2SC461
R25 C23 15P
L7
1
2
3
4
5
6
7
8
L5
0.47
µ
IF
B
UFFER
20
18
11
13
10
1
2
3
5
6
7
IF
B
UFFER
FM-IF
Q.D
.
V
CC
12
FM-OUT
9
REG. (T
O 22PIN)
POST
AMP
.
22
23
24
4
14
19
17
16
REG.
OSC
OSC
B
UFFER
NARR
O
W
S-METER
AG
C
S-
METER
LED
DRIVER
8
V
DD
GND
21
RF
MIX
AM-IF
DET
15
AM-OUT
AM-IF
STRQ
FM-IF
FM-IN
IC1 : LA1266 AM/FM IF
IC2 : LC72131 PLL Controller
POWER
ON
RESET
XIN
q
!8
PD AIN1
@2
XOUT
!6
FMIN AMIN
r
DI
t
CL
y
DO
!7
VDD
@0
AOUT1
!9 !2
IFIN
!5 e
CE
@1
VSS
REFERENCE
DIVIDER
PHASE DETECTOR
CHARGE PUMP
UNLOCK
DETECTOR
UNIVERSAL
COUNTER
SWALLOW COUNTER
1/16,1/17 4BITS
1/2
12BITS
PROGRAMMABLE
DIVIDER
DATA SHIFT REGISTER
LATCH
u
i
o
!0
!1
!3
C
2
B
I/F
BO1
BO2
BO3
BO4
IO1
IO2
IC3 : LA3401 MPX
22
21
OSC
20
PHASE
COMP
ARA
T
O
R
19
V
O
L REG
18
17
16
15
14
13
12
PILO
T
DET
VCO
ST
OP
SYMMETRICAL
REA
CT
ANCE
CIRCUIT
FF
FF
FF
38KHz
FF
19KHz
∠
90
°
FF
19KHz
∠
0
°
TRIGGER
LAMP
DRIVER
STEREO SWITCH
80K
1
2
3
4
5
6
7
8
9
10
11
MUTING
FM AM
CHANGE
V
CC
ON
MUTING
DECODER
MUTING CONTR
OL
FM
AM CHANGE O
VER
RA
1K
RC RC
RB
RB
MUTING OUTPUT
80K
1K
Point
o
(Pin22 of IC2)
V : 2V/div
H : 0.1
µ
sec/div
DC range
1 : 1 probe
2V
SAMPLE 0.1us
0V
E-101/J-93
P-E94/J86
K-6