HCD-EP50
16
16
•
SIGNAL PATH
: RECORD
: TAPE PLAY
Q36
R-CH
L-CH
HPRE101 (1/2)
(RECORD/PLAYBACK)
R-CH
R-CH
8
(PROTECT (FWD) DETECT)
(PROTECT (REV) DETECT)
(TAPE DETECT)
(CrO
2
DETECT)
REC/PB
SWITCH
Q34
REC/PB
SWITCH
Q30
AMP GAIN
CONTROL
Q28
ALC
CONTROL
Q8
BIAS
TRAP
CAPSTAN/REEL
MOTOR DRIVE
Q37, 39
BIAS OSC
L5
9V
+5V
REC BIAS
SWITCH
Q32, 33
M
(CAPSTAN/REEL)
TRIGGER
PLUNGER DRIVE
Q38, 40
(TRIGGER PLUNGER)
LED
DRIVE
Q305
D313
SW318
(MONO STEREO)
CAPSTAN/REEL MOTOR CONTROL,
TRIGGER PLUNGER CONTROL,
REC BIAS CONTROL
U15
SYSTEM CONTROLLER
IC301 (1/3)
R-CH
R-CH
R-CH
R-CH
R-CH
(HEAD POSITION DETECT)
CD-EN
TU-EN
ST/BEAT
DA IN
CLOCK
D305
D306
D308
D29
D50
D4
D32
LED
DRIVE
Q304
D312
TL-CH
TR-CH
RL-CH
RR-CH
AMS
U14
HPRE101 (2/2)
(ERASE)
SWITCHING
ISS SWITCHING
Q41
z
TIMER
ISS
2 1
STEREO MONO
BUFFER
Q14
TAPE PLAY/REC DETECT
SENSOR
REC AMP
Q25
MUTING
Q26
TAPE TYPE
SELECT SWITCH
Q45
BIAS OSC
Q31
6-2.
BLOCK DIAGRAM – TAPE DECK Section –