Technics RS-DV250

TP609
CN601
CN901
IC701
M38503M2406F
SYSTEM CONTROL
E
C
A
B
D
J
I
H
G
F
PQR
JEDG
AC E
E
D
A
C
B
I
H
F
Q701
Q703
Q702
2SD1819ARTX
INTERFACE
13
2
X701
(8MHz)
CBAFIOJKLMNGH
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
MA111TX
D710
MA111TX
BD
R745
100
R710 1K
R724 1K R723 1K
D707
MA4051MTA
L702
R738
1K
R747
1K
R704
4.7K
R744
1K
R727
4.7K
R708
4.7K
R729
4.7K
R741
22K
D708
MA111TX
R743
47K
R705
47K
D709
MA111TX
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
MA4056MTA
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
MA111TX
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
31323334353637383940
4142 222324252627282930
KEY1 VCC
VREF
AV
SS
LMT
PL1
M1
HALT
REQ
CS
CLK
V
SS
VSS
XOUT
XIN
RESET
REV LED
FWD LED
CRO2 2
METAL 2
DATA IN
DATA OUT
CRO2 1 MODE HALF1 TPS A LATCH PL2 M2 ENC/DEC
DOLBY ON/OFF ECS NC KEY2 NC NC A CLK ADATA LED CNT AD SW PHOTO1 T PHOTO2 T
F
EDABC
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
9.4V5V
5.7V
10.3V9.6V
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 : 0V
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
16ms.
5ms. 2V/DIV.
0V
4.8V
0V (5V)