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HCD-EP50LIV
21
21
IC B/D
IC B/D
IC B/D
5
2
3
4
MAIN BOARD
(1/3)
2
MAIN BOARD
(1/3)
5
DISPLAY
BOARD
D
MAIN BOARD
(1/3)
3
MAIN BOARD
(1/3)
1
MAIN BOARD
(3/3)
7
[0]
<3>
<3>
[0.7] <0.1>
[0.7]
<0.1>
[0.7]
<0>
[0.7]
<0.1>
[8.4]
<0.1>
[0]
<0.7>
[0]
[0]
<2.9>
[0]
<8.9>
[9] <0>
[8]
[0] <0.7>
[0]
<0.2>
[0] <–2.3> <<43.3>>
[0.6] <–1.6> <<–0.9>>
[0]
<6.6>
[0]
[0]
<3.5>
[0]
<3>
[0]
[0]
[0]
[0]
[0]
[0]
<2.9>
[0]
[0]
[0]
[0]
[0]
[0]
[0.7]
<0.1>
[0]
<3.6>
[9.1]
[0]
[0]
[9]
<8.3>
[0]
[0]
[0]
[1.3] [1.4] [3.8]
[0]
[7.7]
[0]
[0]
[0]
[1.3]
[1.4] [2.7]
[7.4] [7.4]
[0.7]
<0>
[0.7]
<0>
[4.3]
[3.8]
[8]
[4.6]
0
0.6
[0]
[0]
0
0.6
[0]
[0]
[4.1]
[2] [0] [2]
[0]
[7]
12.1
0
[12]
12
[11.3]
0
[12]
0
12
[0.1]
0
[5.6]
0
[12]
0
[12]
0
0
4.1
[0]
[0]
0
0
0
0
0
4.9
5.7
0
{0}
[5.7]
<5.7>
0
{0}
[0]
<5.7>
0
{5.7}
[0]
<0>
5.7
{0}
[0]
<0>
5.7
5.7
4.6
[0]
[0]
ERASE
L-CH
R-CH
HRPE101
RECORD/PLAYBACK/
ERASE
CN9
7P
SW R2
GND
SW P2
VCC
GND
CONT
SW P1
GND
SW R1
U12
REC/PB SWITCHING
REC/PB
SWITCH
U13
ALC,
REC/PB AMP
U13
AN7312
Q29
REC/PB SWITCH
BIAS OSC
Q31
BIAS OSC
ISS SWITCHING
REC AMP
REC AMP
TAPE TYPE
SELECT SWITCH
TAPE TYPE
SELECT SWITCH
Q32, 33
REC BIAS SWITCH
INVERTER
Q27
AMP GAIN CONTROL
Q35
REC/PB
SWITCH
MUTING
Q8
ALC
CONTROL
IN1
IN2
NF2
PC2
OUT2
ALC
IN2
RF
VCC
FM1
PC1
OUT1
ALC
IN1
ALC
CONST
GND
Q28
AMP GAIN CONTROL
REC/PB
SWITCH
Q26
MUTING
U14
BA335
U14
AMS
V. N
C. R
NF
NC
GND
TROUT
DIOUT
V8
VCC
Q37, 39
CAPSTAN/REEL
MOTOR DRIVE
Q38, 40
TRIGGER
PLUNGER DRIVE
Q14
BUFFER
U15
CAPSTAN/REEL MOTOR CONTROL,
TRIGGER PLUNGER CONTROL,
REC BIAS CONTROL
CN14
9P
CN15
9P
i
i
i
i
i
i
RR-CH
RL-CH
TR-CH
TL-CH
REC. LED+
BEAT
I
CLOCK
I
DA_IN
I
STR
I
CD-EN
I
TU-EN
I
TIMER
TAPE
MECHANISM
BLOCK
MAIN BOARD
(2/3)
50V
0.0015
0.0015
50V
0.001
0.01
0.018
0.001
0.1
0.022
50V
50V
0.022
0.01
0.01
0.001
50V
0.068
0.0022
0.0047
50V
50V
50V
0.047
0.001
0.001
50V
0.0022
0.0047
0.068
50V
50V
0.047
50V
50V
0.022
50V
0.001
50V
50V
50V
50V
50V
0.022
0.022
0.1
1SS133T
1SS133T
1SS133T
1SS133T
1SS133T
1SS133T
2SD1616
6-8.
SCHEMATIC DIAGRAM – MAIN Board (2/3) –
•
See page 28 for Waveforms.
•
See page 28 for IC Block Diagrams.
(Page 20)
(Page 20)
(Page 25)
(Page 20)
(Page 22)
(Page 20)
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