Sony CFD-E55L Service Manual ▷ View online
CFD-E55L
– 19 –
– 20 –
6-2.
BLOCK DIAGRAM – TUNER Section –
2
24
4
7
20
21
FM
RF AMP
FM
MIX
FM
OSC
FM IF
AMP
IF
BUFFER
AF
BUFFER
AF
AMP
MPX
MUTE
STEREO/
MONO,
FM/AM
FM/AM
AM IF
AMP
FM
DET
AM
DET
6
FM RF
IN
IN
22
AM
RF AMP
CONSTANT
CURRENT
Q3
LW BAND
SELECT SWITCH
Q9
MW BAND
SELECT SWITCH
Q8
AM
MIX
AM RF
IN
IN
MIX OUT
OSC
OUT
OUT
CF1, 2
10.7MHz
CF3
10.7MHz
FM/AM PLL
IC2
CF4
450kHz
FM
RF OUT
RF OUT
10
QUAD
FM
IF IN
IF IN
12
15
11
L-OUT
MPX
IN
IN
R-OUT
13
AM
IF IN
IF IN
LPF1/BAND
AM OSC
FM OSC
FM/AM RF AMP, MIX, OSC,
FM/AM IF AMP, DET, MPX
IC1
L2
FM VCO VOLTAGE
L4
LW VCO VOLTAGE
CT1, L1
FM TRACKING
T1
IFT
B.P.F.
FL1
LOW-PASS
FILTER
• SIGNAL PATH
: FM
: MW/LW
05
X1
75kHz
CT2
L1
FM RF
XOUT
XIN
AM IN
IF IN
ST
-IND
MW
LP-OUT
LP-IN
FM IN
21
20
12
13
19
7
LW
6
CT1
D1
L4
MW/LW OSC
L2
FM OSC
LEVEL
DET
ST
IND
14
LPF2/MO-ST
AM
OSC
BUFFER
BUFFER
SWALLOW
COUNTER
UNIVERSAL
COUNTER
CCB
INTERFACE
REFERENCE
DIVIDER
UNLOCK
DETECT
12 BIT
PROGRAMMABLE
DIVIDER
PHASE
DETECTOR/
CHARGE PUMP
SHIFT REGISTER & LATCH
1/2
BAND
DI
CL
CE
DO
B-MUTE
R-DATA
R-CLOCK
R-LATCH
R-COUNT
R-CH
CNP1
CNP312
1
DET
OUT
ANT1
FM TELESCOPIC
ANTENNA
PD
IF OUT
ST IND
3
4
2
5
11
10
LPF1/BAND
8
LPF2/MO/ST
14
9
18
17
17
18
16
19
CT3
D2
D3
(1/2)
D3
(2/2)
IF REQUEST
SWITCH
Q2
AM HIGH
CUT
SWITCH
Q1
2
3
1
4
MAIN BOARD (1/3)
T1
AM IF
C
TO MAIN SECTION
(Page 21)
TUNER L-CH
FROM MAIN SECTION
(Page 21)
D
TO MAIN
SECTION
(Page 21)
(Page 21)
E
R-CH: Same as L-CH.
Q6
Q4
Q5
B+
Q4, 5
MW SWITCH
L3-1
MW
L3-2
LW
L3
MW/LW FERRITE-ROD
ANTENNA
MW
TRACKING
CT2, L3-1
LW
TRACKING
CT3, L3-2
Q7
LW
SWITCH
Q6
LW SWITCH
CFD-E55L
6-3.
BLOCK DIAGRAM – MAIN Section –
REC/PB EQ AMP
IC301
SOUND CONTROL,
ELECTRICAL VOLUME
IC302
POWER
AMP
IC303
05
C
FROM
TUNER SECTION
(Page 20)
G
FROM POWER
SUPPLY SECTION
(Page 24)
•
SIGNAL PATH
: CD PLAY
: TUNER (FM/AM)
: TAPE PLAY
: TAPE RECORD
R-CH: Same as L-CH.
SHIFT
CLOCK
Q503
Q503, 504
SHIFT CLOCK
Q504
MODE CHECK
SWITCH
Q505
X501
4.19MHz
R-CH
MEGA BASS
CONTROL SWITCH
Q303
IN2
OUT2
L IN
L OUT
S609, 610
Q313
Q312, 313
ISS SWITCHING
VREF
L.LO
MIC IN
L.CD
L.RAD
VREF
VREF
COM 5V
L.IN
L-CH
R-CH
XT
AL
EXT
AL
D
ATA
CLK
LA
T
KEY1
KEY2
KEY3
RADIO
TAPE
REC
29
32
31
19 20 18
VC
23
BC
21
27
25
LED
4
26
R-DATA
R-CLOCK
R-LATCH
R-COUNT
R-DATA
R-CLOCK
R-LATCH
R-COUNT
17
15
16
B-MUTE
67
C-MUTE
68
ISS2
77
ISS1
76
14
17 15 21
6
20
31
24
POR
T1
12
8
5
L.RO
4
22
24
13
L-CH
R-CH
TUNER L-CH
R-CH
R-CH
R-CH
MUTE
P-CON
MUTE
CNP304 (1/2)
1
3
CNP301
BH301
HRP301
(REC/PB)
HE301
(ERASE)
2
CNP304 (2/2)
5
BH302
(1/2)
2
BH302 (2/2)
4
3
CNP303 (2/2)
4
3
CNP305 (1/4)
1
2
5
BH501 (1/4)
1
2
5
7
7
TAPE
69
6
6
A-MUTE
66
10
10
71
3
3
CNP306 (1/3)
2
BH502 (1/3)
2
7
7
9
9
6
6
1
1
CNP303
(1/2)
(1/2)
2
5
5
B
FROM
CD SECTION
(Page 18)
CD-ON
F
TO POWER
SUPPLY
SECTION
(Page 23)
TO CD
SECTION
(Page 18)
TO TUNER SECTION
(Page 20)
C-MUTE
B-MUTE
A
D
TO
TUNER
SECTION
(Page 20)
(Page 20)
E
MAIN BOARD (2/3)
KEY 1 BOARD (1/2)
KEY 1 BOARD (2/2)
POWER BOARD (1/2)
REC SW BOARD
LCD BOARD (2/3)
LED BOARD
4
3
3
1
2
CNP302
2
4
3
PB
EQ AMP
MONITOR
AMP
MATRIX
SOUND
CIRCUIT
TONE
CONTROL
CIRCUIT
LINE MUTE
SWITCH
Q301
MIXING
AMP
Q302
CONTROL
BUZZER
MUTE
3
POWER
AMP
STANDBY
SWITCH
RIPPLE
FILTER
VOLUME
CONTROL
CIRCUIT
MIC
AMP
REC
EQ AMP
BIAS OSC
Q311
CD ON
SWITCHING
Q363
REFERENCE VOLTAGE
GENERATOR
LOGIC CIRCUIT
DET
ALC
BUFFER
BUFFER
T311
BIAS OSC
Q312
BH603
(1/2)
4
5
2
6
3
1
2
BH602
(1/3)
4
3
3
BH605
(1/3)
(1/3)
6
7
4
BH605
(2/3)
1
1
4
3
6
1
CNP307
(1/2)
BH353
(1/2)
(1/2)
1
9
1
9
BH352
SP101
(L-CH)
(L-CH)
SP201
(R-CH)
1
2
J301
(HEADPHONE)
i
4
3
CNP310
4
3
4
3
1
2
1
2
CNP311
X502
32.768kHz
TX
TEX
73
74
MODE CHECK
28
MUTE
SWITCH
Q341
SEG0 – SEG22
LIQUID CRYSTAL
DISPLAY
LCD501
LED DRIVE
Q502
42 – 64
COM0 – COM3
38 – 41
SYSTEM CONTROLLER
IC501 (2/3)
BH504
2
4
1
3
4
S617
S601 – 606
S619 – 624
S614, 615
S611 – 613
OPR/BATT B+
CNP501
BH601
A-MUTE
B+
R-CH
R-CH
D321
D322
S301 (1/2)
(REC/PB)
L-CH
REC
VCC
R-CH
VREF
FILTER
ST
ANDBY
REC
V
-D
ATA
V
-CLOCK
V
-LA
TCH
BUZZER
ISS 2
ISS 1
5
7
13
19 20 18
3
REC
PB
S301 (2/2)
(REC/PB)
REC
PB
CD
+
D602
ALARM
S601
S602
ALARM
S619
RADIO
BAND
S620
VOL
S621
S622
S623
PRESET
S624 AUTO PRESET
OPERATE
–
+
–
–
+
+
TUNE
TIME SET
TIMER
S603
S606
S604
SLEEP
S611
S612
CLOCK
MEGA BASS
S613
START/STOP
SOUND
S609
x
S610
u
S614 .
S615 >
DSPL
ENT MEM
S605
PLAY MODE
MONO/ST
ISS
D601
OPR/BATT
BH603
(2/2)
(2/2)
1
BH602
(2/3)
(2/3)
1
CNP601
1
2
2
BH607
BH604
1
BH602
(3/3)
2
BH606
2
BH605
(3/3)
(3/3)
2
KEY 2
BOARD
KEY 3
BOARD
– 21 –
– 22 –
– 23 –
– 24 –
6-4.
BLOCK DIAGRAM – POWER SUPPLY Section –
05
T901
POWER
TRANSFORMER
P-CON
RST
RADIO
BACK UP B+
D909
POWER AMP
(IC303) B+
D908
MOTOR BRAKE
SWITCH
Q366
S303
(MOTOR ON/OFF)
S304
(TAPE PLAY)
M301
(CAPSTAN/REEL)
B+ (VDD S.W)
30
21
REG CHK 80
DC1 22
DC2 23
DC3 24
70
79
CNP309
BH501
(4/4)
1
2
11
5
6
RECT
D901 – 904
+5V
REGULATOR
Q354
B+ SWITCH
Q351, 352
CD B+ SWITCH
Q702, 703
+6V
REGULATOR
Q353
+5V
REGULATOR
IC502
AC, BATTERY
CHECK
Q501
RESET SIGNAL
GENERATOR
IC503
AC, BATTERY
CHECK
Q373
AC, BATTERY
CHECK
Q375
REGULATOR
Q374
TC-PLAY
65
9
MOTOR ON
TC-PLAY
MOTOR ON
3
4
M
M
6
5
BH354
1
4
3
6
5
CNP308
1
4
3
J901
-
AC IN
CNP351
9V
4.5V
DC2
DC3
GND
2
3
4
5
1
2
1
BH901
BH902
1
2
3
BATT (+)
BOARD
BATT (–)
BOARD
D363
D362
D361
D910
D907
AC-HI
BH353
(2/2)
(2/2)
7
CNP307
(2/2)
7
6V
BH351
3
CNP704
PVDD
CD MOTOR/COIL
DRIVER (IC702) B+
DVDD
CD SECTION B+
ELECTRICAL VOLUME,
SOUND CONTROL
(IC302) B+
RADIO 6V
TUNER SECTION B+
COM 5V
REC/PB EQ AMP (IC301),
TUNER SECTION B+
VT B+
PLL L.P.F. CIRCUIT B+
3
BH701
(2/2)
(2/2)
5
6V
1
1
5V
8
8
5V
5
5
VDD (S.W)
6
CNP305
(4/4)
(4/4)
11
9
6
P-CON
U-COM (VDD)
DC1
DC2
DC3
DRY BATTERY
SIZE “D”
(IEC DESIGNATION R20)
6PCS. 9V
(FOR POWER SUPPLY)
DRY BATTERY
SIZE “AA”
(IEC DESIGNATION R6)
3PCS. 4.5V
(FOR BACK UP)
DC LEVEL DETECT
Q367, 370
DC LEVEL DETECT
Q368, 371
DC LEVEL DETECT
Q369, 372
MOTOR DRIVE
Q364, 365
SYSTEM CONTROLLER
IC501 (3/3)
POWER BOARD (2/2)
CD BOARD (2/2)
MAIN BOARD (3/3)
G
TO MAIN SECTION
(Page 22)
P-CON
CD-ON
TUNER B+
SWITCH
Q361, 362
CNP305
(2/4)
(2/4)
4
8
RADIO
F
FROM MAIN SECTION
(Page 21)
CNP305
(3/4)
(3/4)
REG
CNP306
(2/3)
(2/3)
8
P-CON
5
OPR/BATT
OPR/BATT B+
CNP306
(3/3)
(3/3)
3
U-COM (VDD)
10
DC1
11
DC2
12
DC3
BH501
(2/4)
4
8
BH501
(3/4)
BH502
(2/3)
8
5
BH502
(3/3)
3
10
11
12
LCD BOARD (3/3)
CFD-E55L
CFD-E55L
– 26 –
– 27 –
– 28 –
• Circuit Boards Location
6-5.
PRINTED WIRING BOARDS – CD Section –
KEY 2 board
KEY 1 board
LCD board
REC SW board
BATT (–) board
BATT (+) board
MAIN board
KEY 3 board
POWER board
CD MOTOR board
CD board
LED board
• Semiconductor
Location
Ref. No.
Location
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
b
: Pattern from the side which enables seeing.
IC701
C-6
IC702
E-5
IC703
B-4
Q701
D-5
Q702
A-6
Q703
A-3
1-658-023-
S701
(LIMIT)
M701
(SPINDLE)
CNP707
1
6
31
(31)
M
M702
(SLED)
(SLED)
M
1
2
3
4
5
6
7
8
A
B
C
D
E
05
(Page 33)
(Page 45)
(Page 34)
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