Block Diagram - Main Section - Sony CFD-RG880CP Service Manual

7-3. BLOCK DIAGRAM – MAIN Section –
CD
A
CD L-CH
SECTION
(Page 25)
J372
R-CH
AUDIO IN
CNP2
TUNER B
TU L-CH
SECTION
(Page 26)
TAPE MECHANISM DECK
HRP301
RECORD/PLAYBACK
HEAD
L-CH
R-CH
R-CH
HE301
ERASE HEAD
PB
REC
M971
TC+9V
CAPSTAN/REEL
M
MOTOR
S972
MOTOR
S971
PLAY
CFD-RG880CP
INPUT SELECT
IC301 (1/2)
IN L1
1
SEL1 L
10
IN L2
3 MUTE
REC/PB PRE AMP
IC301
L.RAD L.LIN
22 24
PB AMP
L.IN TAPE TAPE
5
BUFFER
Q160
AMP 7dB
L.RO L.LO
4 20
REC AMP
26dB 18
R.LO R-CH
IC351
REF LOGIC
6
R-CH
21 15 17
S301
REC/PB
AU 6V
T301
Q301
REC BIAS
OSC
64 65 63 62
SOUND/VOLUME
IC301 (2/2)
VOL1 L
11
TONE
OUT1 L
23
SURROUND
R-CH
MCU I/F
26 25
82 66 68 79
SYSTEM CONTROL
IC801(3/4)
27 27
POWER AMP
IC303
12 3
STBY
MUTE
8
Q101
VDD(SW)
WOOFER AMP
IC302
AMP LPF
12
Q301 Q303
3
13
10
5
GAIN
11
CONTROL
STBY
Q302
8
VDD(SW)
D307
AGC
AGC
DRIVE
Q306
Q304
D303 D304 D308
D305
HEADPHONE
DETECT SWITCH
Q305
D306
AUDIO +6V
72 78 73
CFD-RG880CP
SP292
BUZZER (R-CH)
SP291
SPEAKER (R-CH)
R-CH J391
SP191
SPEAKER (L-CH)
SP192
BUZZER (L-CH)
SP393
WOOFER
• R-CH is omitted due to same as L-CH.
• Signal Path
: FM
: CD
: TAPE PLAY
: TAPE REC
: LINE IN
: USB