Block Diagram - Sony CFS-828SMK2 Service Manual

6-2. BLOCK DIAGRAM

MIC301
MIC
DECK A
(L-CH)
VREF
HP301
PLAYBACK
HEAD
(R-CH)
R-CH
S303
ISS
DECK B
2
HE301
ERASE
S304
HEAD
(REC/PB)
PB REC
(L-CH)
HRP301
RECORD/
PLAYBACK
HEAD (R-CH) R-CH S304
VDD
-2
-4 -3
J103
PLAY(DECK B)
J102
PLAY(DECK A) Q308
ISS SWITCH
J105
VBATT
Q304
POWER(DECK B)
TAPE
J104
CONTROL
POWER(DECK A)
Q306
M301
CAPSTAN/
REEL Q307
RV302
MOTOR TAPE CONTROL
Q305
RV302
TAPE SPEED
ANT1
FM/SW
S1-2
TELESCOPIC
ANTENNA
L5 SW1 ANT
L5
SW1
TRACKING
S1-1
L7 SW2 ANT
L7
SW2
TRACKING
CV3
L3 MW FERRITE-ROD
CT3
S1-4
ANTENNA
S1
CT3,L3
BAND
MW
FM TRACKING
r
SW1
CT6
r CT6,L6
L6
SW2 SW1
SW1
r
FREQUENCY
OSC
MW COVERAGE
CT8
S1-5
CT8,L8
L8
SW2 SW2
FREQUENCY
S1-6 OSC
COVERAGE
CT4
CT4,L4
L4
MW
MW
FREQUENCY
OSC
CV1-4
COVERAGE
TUNING
IC301
REC/PB PRE AMP
MIC IN
MIC
9
AMP
A-DECK-L
R-CH
1
MIC
AMP
1
VDD
B-DECK-L
32
CD-IN-L
NC 12
BIAS
TR-B
30
BIAS
BIAS
T301 OSC
FUNCTION
TR-C
29
LOGIC
VDD
CONTROL
VREF
19 VREF
MIC/HS
7 10
IC1
FM/AM
FRONT END,IF DET,
B+ SWITCH
VBATT
FM STEREO DEMODULATOR
Q327
CF1
FE
FM IF
RF IN OUT
FM
18 16
L1
FRONT END
FM RF CT1 CV1
FM RF
CT1,L1
20
FM
TRACKING
AM IFT
CT2 CV2
CT2,L2 FM OSC
22
FM
FREQUENCY
COVERAFE
L2 AM IF
S1-3
FM OSC
T1
AM RF
FM
19 AM IF
FRONT END
REG OUT
21
S1-7 REGULATOR
AM OSC
24
RV2
FINE TUNING
FINE
CONTROL
TUNING
Q1
FLAT GROOVE LIVE POP CINEMA
NC
11 8 9 10
IC302
TREBLE/BASS
CONTROL
ANALOG SWITCH 7
LCH LCH
LINE-
MAXI BASS
IN OUT
OUT-L
14 EQ/SWITCH 22 TREBLE, 17
Q309,310 BASS
FLAT Q315
EQ
SWITCH
RCH
27
OUT
A/B
4
NS/HS
28
MUTE
MUTE
CONTROL
Q101
Q324
R-CH
L9
RV1
FM
FM VCO
IF
26 27 28
LCH OUT
FM RF
6
MPX
IN FM IF/
DECODE
13
RCH OUT
DISCRI
AMP
5 R-CH
T1
AFC/
AGC
AFC/AGC
10
AMP
CF2
AM IF
IN AM IF/
14
DETECT
DETUNE
MUTING
CONTROL
AFC
23
Q303
BAND SEL
INV.
15 Q2
BAND
D3
SW1
VCC 7
SW2
TU+B
13 13
LED DRIVER
Q322,323
D326
RV301 IC304
POWER AMP
VOLUME
LINE
AMP
12 3
Q311
MUTE
Q313
10 5
LINE ST-BY
AMP R-CH
8
Q312
Q316
CONTROL
Q318
D153
D253
R-CH
S302-1
SWITCH
Q325,326
D306
S302
D906 D905
FUNCTION
TAPE
RADIO OFF
r
DUBBING
r
TUNER POWER SWITCH/
HIGH SPEED
TU+B B+ SWITCH CONTROL
Q302 Q301,319,320
DUBBING
r
RADIO
VDD
S302-2
VBATT
D303
D325
D901-904
F901
Q321 INITIAL
MUTE
D319
F902
OPR/BATT
S1-8
FM T901
r POWER
TRANSFORMER
Signal path
r
: FM : PB(DECK A)
r
MW
: MW : PB(DECK B)
: SW : REC(DECK B)
R-ch is omitted due to same as L-ch.
CFS-828SMK2
M
KEY1
KEY2
S306
KEY3 SOUND
SELECT
KEY4
VDD
KEY5
R-CH
J301
PHONES
SP301
WOOFER
(L-CH)
SP303
D321
TWEETER
Q317 (L-CH)
MAXI
J304
BASS
D322
SPEAKER
R-CH
S301
MAXI BASS
OFF
r
ON
D318
MAXI BASS
VDD
F904
DRY BATTERY
SIZE "D"
(IEC DESIGNATION R20)
6PCS,9V
S901
VOLTAGE
SELECTOR
220 - 240V
R
110 - 120V
~ AC IN
F903
J901
~ AC IN