6-5. BLOCK DIAGRAM — TAPE SECTION —
– 27 –
– 28 –
PMC-D407L
22
24
20
31
24
2
7
1
6
8
3
12 13 14 15
18 19 20 21
23
5
4
8
9
MUTE
MUTE
3
1
3
12
14
2
15
17
18
15
21
R-CH
R-CH
L. LO
R. LO
TAPE
REC
L. RAD
L. IN
L. RD
R. IN
R. RD
L. CD
R-CH
R-CH
LOGIC
REC/PB PRE AMP
IC301
MUTE
CONTROL
Q333
CD/LINE
CONTROL
Q331, 332
CD5V
RADIO7.5V
D317
D319
R-CH
J323
LINE IN
L-CH
L-CH
CD SECTION
B
TUNER SECTION
A
HRPE101
L-CH
R-CH
ERASE
BIAS
OSC
Q301
REC/PB
SW
Q326, 328
BL7.5V
BL7.5V
Q308
Q325
Q307
MUTE
CONTROL
Q327, 335
H/P AMP
SW
Q334
MEGA BASS
Q329
REF
REC/PB
SW
Q302, 303
REC/PB
SW
Q304, 305
BL7.5V
REC/PB
SW
Q324
REC/PB
SW
Q306
BL7.5V
CD5V
+5V REG
Q319
CD +7.5V
REG
Q318
AUDIO
+7.5V REG
Q315
POWER
CONTROL
Q313
+12V REG
Q323
REG
Q601
TU7.5V
SW
Q316
CD
+5V SW
Q320
CD7.5V
COM5V
F501
T501
RECT
D501-504
(AC IN)
F602
F603
F601
T601
B+
+18V
–18V
RECT
D601-604
(AC IN)
BL7.5V
RADIO7.5V
D307
VT
COM12V
TO
WOOFER AMP
DRIVER
CONTROL
VOL
TONE
ELECTRONIC VOLUME
IC302
D312
Q330
COMP
AMS AMP DET
IC305
D320
Q314
15
20
98
97
13
23
22
21
96
18
16
COM12V
SOLENOID
DRIVE
Q309
T AMS
T SOL
99
BUFFER
Q310
TC CONTROL
Q317
TC M.SW
Q311, 312
T END
17 T MODE
30 T STAT
19 T MCON
A MUTE
V CLK
V DAT
V CE
T BIAS
ISS1
ISS2
T REC
P CONT
PH691
S696
MODE
(HEAD POSITION)
S691
HALF
(CASSETTE)
S694
REC-REV
(ERASE PROOF)
S695
REC-FWD
(ERASE PROOF)
PM691
PLUNGER
SOLENOID
M
M691
(CAPSTAN/REEL)
SYSTEM CONTROL
IC801 (2/3)
H/P AMP
IC303
D305
R-CH
-2
R
-2
R
-1
L
-1
L
J302
SIGNAL OUTPUT
J502
SIGNAL INPUT
J303
SIGNAL
OUTPUT
WOOFER
J602
AC OUTLET
MAX 35W
J601
SIGNAL
INPUT
WOOFER
POWER AMP
IC309
SP101
SPEAKER
L-CH
SP601
WOOFER
SPEAKER
SP201
SPEAKER
R-CH
J501
SPEAKER
OUT R-ch
IMPEDANCE USE 6
Ω
J301
Q103
Q101
Q104
R-CH
J332
LINE OUT
LINE AMP
IC304
04
Q102
Q131
Q132
T301
VCC
Signal Path
: FM
: TAPE (PB)
: TAPE (REC)
: LINE IN
: CD
R-ch : same as L-CH.
R-CH
BUFFER
Q399
BUFFER
Q602,603
LED
DRIVE
Q611
BUFFER
Q604,605
BUFFER
Q606,607,608
V IN
ST/BY
3
WOOFER AMP
IC601
RV601
LEVEL
Q609
D611
POWER
MUTE
Q398
STANDBY
B+
REG
Q610
MUTE
Q612,615
7
6
V OUT
(Page 26)
(Page 24)