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A
B
SCHEMATIC DIAGRAM [OPERATION]
Q Q
1
3 7 6 3 1 5 1 5 0
2
4.9
4.9
–25.7
–25.7
–25.6
–25.7
– 27 .7
– 25 .3
3
•
– 27.7
IC501:M30217MA-A203FP
→See page 20~22(EX),
–27.7
–27.7
18~20(J)
–27.7
–27.7
–27.8
0.5
0.4
4
T E
L
1 3 9 4 2 2 9 6 5 1 3
5
6
4.9
7
4.8
4.4
–11.4
–11.4
FULL MUTE
DRIVE
w w w
8
.
C
D
E
–25.7
–25.7
4.8
–27.7
4.8
4.8
MICROCOMPUTER
4.8
4.9
4.9
4.9
0
4.9
M30217MA-A203FP
0
4.8
0
4.8
0
4.8
4.8
4.9
4.8
0
4.8
0
4.8
4.9
0.1
4.8
0
3
2.4
2.1
x
a o
y
0
i
G
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F
8
–20.8
–27.8
Q
Q
3
7
6
3
RESET
+5V
4.8
REGULATOR
0
0
0
0
4
4.8
12.1
5.6
5.6
0.6
0.6
0
0
12.1
12.1
11.4
7.2
6.6
0
POWER
DOWN
DETECT
0.4
0.4
1.5
1.5
0.2
0
0
0
0
u 1 6 3
.
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H
I
3
Point
(Pin 13 of IC501)
V : 2V/div
H : 20µsec/div
2
4
9
9
8
DC range
1 : 1 probe
0V
2V
SAMPLE
20us
Point
4
CH1 : Emitter of Q504
CH2 : Collector of Q503
V : 5V or 2V/div
H : 5sec/div
DC range
1 : 1 probe
CH1
0V
(CH1)
CH2
0V
(CH2)
VIDEO AUX
5V
2V
SAMPLE
5s
With the POWER
Disconnect the
switch turned ON,
power cord from
connect the
the AC outlet.
power cord to the
AC outlet.
This waveform is not available by pushing the
power switch ON and OFF.
TONE CONTROL
11.6
0.1
0.1
0
1
5
1
5
0
8
9
2
4
0.1
0
0.1
–11.2
PIN CONNECTION DIAGRAM OF DIODES, TRANSISTORS AND IC's.
1SS133
HZS7A2TD
2SA933S(Q,R)
2SC4038(Q,R,S)
NJM78L05A-T3
1SS176
HZS7B2TD
DTC144ES
HSS104
HZS5B2TD
HZS6B2TD
Anode
1:INPUT
B
2:COMMON
C
E
3:OUTPUT
B
Cathode
C
E
m
c o
: NOT USED
: USED
J
K
DSP-A5
2
9
9
S VIDEO
VIDEO
AUDIO
11.6
0
0
0
9
8
2
9
9
0
0
0
–11.2
MAIN L
NJM2068D-D
M30217MA-A203FP
51
50
31
80
30
81
100
1
Conditions (DSP-A5)
→ CD
• INPUT
→ minimum(–∞)
• VOLUME
• IMPEDANCE
→ Left
SELECTOR
• PRO LOGIC → On
All voltages are measured with a 10M Ω /V DC electric volt meter.
Components having special characteristics are marked
and
must be replaced with parts having specifications equal to those
originally installed.
Schematic diagram is subject to change without notice.
E-50/J-48
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