Sony CFS-828SMK2, Service Manual

Page: 13 / 38

CFS-828SMK2
13 13
6-2. BLOCK DIAGRAM
7
30
19
L5
SW1
TRACKING
CT1,L1
FM
TRACKING
CT2,L2
FM
FREQUENCY
COVERAFE
L5 SW1 ANT
L7 SW2 ANT
L7
SW2
TRACKING
CT3,L3
MW
TRACKING
CT6,L6
SW1
FREQUENCY
COVERAGE
CT8,L8
SW2
FREQUENCY
COVERAGE
CT4,L4
MW
FREQUENCY
COVERAGE
DECK A
(L-CH)
(R-CH)
HP301
PLAYBACK
HEAD
DECK B
(L-CH)
(R-CH)
HRP301
RECORD/
PLAYBACK
HEAD
J103
PLAY(DECK B)
J102
PLAY(DECK A)
J105
POWER(DECK B)
J104
POWER(DECK A)
M301
CAPSTAN/
REEL
MOTOR
ANT1
FM/SW
TELESCOPIC
ANTENNA
L8
SW2
OSC
L6
SW1
OSC
L4
MW
OSC
22
19
24
21
20
18 16 13
FM
FRONT END
FM
FRONT END
AFC/AGC
AMP
FM IF/
DISCRI
MIC
AMP
BIAS
OSC
LOGIC
CONTROL
MPX
DECODE
AMP
14
REGULATOR
T1
AM IF
DETUNE
MUTING
CONTROL
FINE TUNING
CONTROL
Q1
TUNER
B+ SWITCH
Q302
B+ SWITCH
Q327
POWER SWITCH/
CONTROL
Q301,319,320
AM IF/
DETECT
10
23
15
7
6
5
28 27
RV1
FM VCO
26
S302
FUNCTION
S302-2
TU+B
VDD
TAPE
RADIO OFF
r
DUBBING
r
HIGH SPEED
DUBBING
r
RADIO
FM
r
SW1
r
SW2
r
MW
OFF
r
ON
S1
BAND
FM
r
SW1
r
SW2
r
MW
S901
VOLTAGE
SELECTOR
220 - 240V
R
110 - 120V
CV1-4
TUNING
L9
FM
IF
RV2
FINE
TUNING
S1-8
BAND
D319
OPR/BATT
10 5
8
12 3
32
1
9
12
29
MIC
AMP
14 22
27
28
MAXI BASS
EQ/SWITCH
Q309,310
17
4
7
TREBLE,
BASS
ANALOG SWITCH
LINE
AMP
Q311
LINE
AMP
Q312
MUTE
Q313
LED DRIVER
Q322,323
10 9 8 11
S306
SOUND
SELECT
J301
PHONES
SP301
WOOFER
(L-CH)
SP303
TWEETER
(L-CH)
J304
SPEAKER
D318
MAXI BASS
S301
MAXI BASS
VDD
OR OR
HE301
ERASE
HEAD
R-CH
R-CH
VREF
S304
CT4
CT8
CT6
S1-7
S1-3
CT2 CV2
CT1 CV1
CF1
FM IF
T1
AM IFT
CF2
AM IF
CT3
CV3
S1-4
S1-1
S1-5
S1-6
CV4
L3 MW FERRITE-ROD
ANTENNA
L2
FM OSC
L1
FM RF
IC1
FM/AM
FRONT END,IF DET,
FM STEREO DEMODULATOR
MIC301
MIC
S303
ISS
2 1
VDD
VDD
MIC IN
A-DECK-L
B-DECK-L
CD-IN-L
VREF
VREF
BIAS
TR-B
BIAS
TR-C
NC
10
MIC/HS
RA-IN-L
FUNCTION
LINE-
OUT-L
A/B
NS/HS
LCH
IN LCH
OUT
RCH
OUT
Q315
EQ
SWITCH
D326
Q316
Q318
ST-BY
D321
D306
VBATT
VBATT
R-CH
Q317
MAXI
BASS
CONTROL
D322
D153
D906 D905
F904
R-CH
R-CH
D253
IC304
POWER AMP
R-CH
RV301
VOLUME
M
KEY1
KEY2
KEY3
KEY4
KEY5
R-CH
DRY BATTERY
SIZE "D"
(IEC DESIGNATION R20)
6PCS,9V
D901-904
F901
F903
F902
T901
POWER
TRANSFORMER
J901
~ AC IN
Q2
D3
D325
D303
D304
Q303
INV.
Q321 INITIAL
MUTE
TU+B
VCC
AFC
BAND SEL
IC301
REC/PB PRE AMP
R-CH
IC302
TREBLE/BASS
CONTROL
FLAT GROOVE LIVE POP CINEMA
KEY1
KEY2 KEY1 KEY5 KEY3 KEY1 KEY2 KEY3 KEY4 KEY5 KEY3 KEY4
KEY2 KEY3 KEY4 KEY5 M
D313 D314 D315 D316 D317
NC
Q305
Q306
Q308
ISS SWITCH
Q307
TAPE CONTROL
RV302
RV302
TAPE SPEED
S1-2
Q304
TAPE
CONTROL
VBATT
VDD
-2
-3
-4
T301
S304
(REC/PB)
PB REC
FLAT
RF IN
FM RF
IN
AM IF
IN
FE
OUT
FM RF
FM OSC
AM RF
REG OUT
AM OSC
LCH OUT
RCH OUT
AFC/
AGC
R-CH
VDD
S302-1
~ AC IN
MUTE
Q101
SWITCH
Q325,326
MUTE
CONTROL
Q324
Signal path
R-ch is omitted due to same as L-ch.
: MW
: FM
: SW
: PB(DECK B)
: PB(DECK A)
: REC(DECK B)