Technics RS-DV250, Руководство по обслуживанию

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TP609
CN601
CN901
IC701
M38503M2406F
SYSTEM CONTROL
E
C
A
B
D
J
I
H
G
F
P Q R
J E D G
A C E
E
D
A
C
B
I
H
F
Q701
Q703
Q702
2SD1819ARTX
INTERFACE
1 3
2
X701
(8MHz)
C B A F I O J K L M N G H
Q604
2SC3940AQSTA
REGULATOR R603
10
TP604
+10V
(D.GND)
R602
0.33
R630
0.33
Q602
2SD2144STA
POWER SUPPLY
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
20
17
18
19
SYNC
CS
+B (10V)
D.GND
SCLK
DATA
DECK REQ
NC
TAPE Lch IN
A.GND
TAPE Rch IN
TAPE Lch OUT
TAPE Rch OUT
RS A.GND
EARTH
TERMINAL
CIRCUIT
D
W601 E1
1
2
3
4
5
6
7
8
Q701,703
2SD1819ARTX
INTERFACE
Q706
DTC114EUT106
RESET SIGNAL
GENERATOR
C707
0.01
D706
MA1
11TX
D710
MA1
11TX
B D
R745
100
R710
1K
R724
1K
R723
1K
D707
MA4051MT
A
L702
R738
1K
R747
1K
R704
4.7K
R744
1K
R727
4.7K
R708
4.7K
R729
4.7K
R741
22K
D708
MA1
11TX
R743
47K
R705
47K
D709
MA1
11TX
R728
10K
R722
100
R703
5.6K
R732 100K
R721 4.7K
R735 4.7K
R632
47K
R609
100
D651
MA165TA
D652
MA165TA
R604
330
C602
16V220
C605
16V220
C603
16V47
D606
MA4056MT
A
C604
0.01
R606
1.5K
R712 68K
R718 68K
R701 10K
R702 10K
C705
0.01
C701
0.01
R711
100K
C702
6.3V100
C706
50V3.3
D705
MA111TX
R737 10K
R736 10K
D701
MA1
11TX
NC
NC
NC
NC
NC
NC
To
SOUND PRCESSOR
(SH-EH770) &
CD CHANGER
(SL-EH770)
CT.GND
Rch
OUT
Lch
OUT
Rch
IN
Lch
IN
A.GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
31 32 33 34 35 36 37 38 39 40 41 42 22 23 24 25 26 27 28 29 30
KEY1
V
CC
VREF
AV
SS
LMT
PL1
M1
HAL
T
REQ
CS
CLK
V
SS
V
SS
XOUT
XIN
RESET
REV
LED
FWD
LED
CRO2
2
MET
AL
2
DA
T
A
IN
DA
T
A
OUT
CRO2
1
MODE HALF1 TPS A
L
A
TCH
PL2 M2 ENC/DEC DOLBY
ON/OFF
EC
S
NC KEY2 NC NC A
CLK
AD
A
T
A
LED
CNT
AD
SW
PHOTO1
T
PHOTO2
T
F
E D A B C
R232
10K
F
G
S
L701
10 H
:POSITIVE VOLTAGE LINE : PLAYBACK SIGNAL LINE : RECORDING SIGNAL LINE
5V
1.9V
0.1V
0V
1.8V
0V
0V
0.6V
0.2V
0V
5V
0V
0V
9.4V 5V
5.7V
10.3V 9.6V
10.3V
10.3V
5V
9.6V
5V
0V
5V
2.9V
5V 5V 5V 5V 5V
2.7V
0V 0V 0V 0V 0V
(5V)
0V 0V 5V
STOP
:
0
V
5V 5V 0V 5V 1.4V 2.2V 2.5V 0V 0V 0V 0V 0V 0.5V 1.6V 1V 5V 5V 2V 2.3V
1.2V
P-P
F=8MHz
2.4V
P-P
F=8MHz
4.8V
0V
T 16ms.
3.6V
0V
T 16ms.
3V
0V
T 16ms.
0V
4.8V
T 16 ms.
5ms. 2V/ DIV.
0V
4.8V
0V
(5V)