CMT-A50/A70
21
21
CMT-A50/A70
6-2. BLOCK DIAGRAM – MAIN Section –
IC501 (CMT-A50)
IC501 (CMT-A70)
IC502 (CMT-A50)
IC502 (CMT-A70)
POWER AMP
MUTING
Q101
HEADPHONE AMP
IC303
BIAS OSC
Q307, 308
LEVEL SHIFT
Q302, 304
ISS
Q334
REC BIAS
(L)
BIAS OSC
T301
REC/PB
SWITCH
IC302
R-CH
L-CH
R-CH
R-CH
A +9V
ERASE
RV101
HRPE301
(REC/PB/ERASE)
PROTECT
SWITCH
Q509
THERMAL
DETECT
Q512
STANDBY
SWITCH
Q506
OVER LOAD
DETECT
Q507
MUTING
CONTROL
Q303, 305
REC BIAS
SWITCH
Q310, 311, 313
MUTING
Q102
MUTING
CONTROL
Q323, 324
TRIGGER PLUNGER
DRIVE
Q314, 315
FM/AM
TUNER PACK
AM
FM ANT
AM ANT
L-CH
R-CH
ST CE
ST CE
R-CH
RDS +3.3V
CD-L
TU +9V
R-CH
R-CH
R-CH
(L-CH)
R-CH
R-CH
R-CH
J301
J751
ST MUTE
ST MUTE
STEREO
STEREO
TUNED (O)
TUNED
ST DOUT
ST DO
ST DIN
+9V
RDS+3.3V
ST DI
ST CLK
ST CLK
RDS DATA
RDS DATA
RDS INT
RDS INT
TAPE MECHANISM
DECK BLOCK
R REC
PLAY SW
END SW
TRGM+
PACK
F REC
(AEP, UK, IT, EE, RU)
ST CE
ST MUTE
STEREO
TUNED
ST DO
ST DI
ST CLK
RDS DATA
RDS INT
FM 75
Ω
COAXIAL
T-SOL
74
T-CASS
72
T-A
70
T-B
71
T-PWS
69
T-REEL
73
VOL IN L
36
TAPE L
3
TU IN L
61
CD IN L
63
MD IN L
59
TAPE IN L
11
A-MUTE
32
HP-MUTE
66
PSTBY
48
PROTECT
87
HP-SW
65
AU_A_SDA
36
AU_A_SCL
33
RA-DAT (I)
28
R-DATA (O)
55
RA-CLK
57
RA-CE
56
ST-MUTE
76
RA-ST
61
R-SD (TUNED)
62
RDS-DATA (IN)
27
RDS-INT (I)
29
CD-MUTE
31
ISS2
92
T-BASS
67
T-PR
68
REC OUT L
15
SI
19
SC
18
PB OUT L 7
TONE OUT L
INPUT SELECT,
ERECTRICAL VOLUME
IC301
37
VOL OUT L 33
A
MUTING
Q103
MUTING
CONTROL
Q503, 504
R-CH
P-ON MUT
PROTECT
MUTING
Q501, 510
PROTECT
CONTROL
+
R-CH
+
R-CH
+
SYSTEM CONTROLLER
IC309 (2/3)
(AEP, UK, IT, EE, RU)
i
LINE IN
B
STBY
C
• SIGNAL PATH
: TUNER
: TAPE PLAY
: TAPE REC
: LINE IN
: CD PLAY
•
R-ch is omitted due to same as L-ch.
R-CH
SPEAKER
UNIT (R-CH)
+
SPEAKER
OUT
J501
THP501
M501
(FAN)
M
FAN MOTOR
DRIVE
Q513 – 515
: Russian model
Abbrivation
RU
: East European model
EE
: Italian model
IT
(Page 20)
(Page 22)
(Page 22)
Ver. 1.2
