Sony CFD-E55 Service Manual ▷ View online
– 75 –
IC301
TA2068N
1
2
3
6
9
10
11
12
8
7
4
5
22
TAPE
TAPE
TAPE
BUF AMP
A1
BUF AMP
A2
NAB
AMP1
NAB
AMP2
23
24
15
14
13
21
20
17
16
RADIO
BUF AMP
B1
BUF AMP
B2
MUTE
MUTE
ON
ON
ON
7dB
26dB
26dB
MONITOR
AMP
LOGIC
18
19
MUTE
7dB
MONITOR
AMP
LINE
TAPE
RADIO
LINE
ALC2
ALC1
DET
REC
AMP1
REC
AMP2
2.1
REF
AMP
MIC
AMP1
LINE
IN1
IN1
INT
EXT
RADIO
IN1
EXT
RADIO
IN1
REC
PLAY
PLAY
PRE
OUT1
OUT1
PRE
OUT2
OUT2
RADIO
LINE
LINE
RADIO
IN2
IN2
LINE
IN2
IN2
MIC
IN
IN
TAPE
TAPE
TAPE
VCC
ALC
NAB
OUT1
NAB
NF1
REC
OUT1
NAB
IN1
VREF
GND
NAB
IN2
REC
OUT2
NAB
NF2
NAB
OUT2
MIC
NF
IC302
BH3854AS
4
5
6
7
8
9
10
11
12
13
14
15
16
TONE
VR
MATRIX
SURROUND
CONTROL
1
2
3
AGND
IN1
NF1
BVN1
BIN1
BVO1
TIN1
TVO1
OUT1
VCC
SC
PORT1
PORT2
PORT3
PORT4
DGND
24
23
22
21
20
19
18
17
TONE
VR
FILTER
IN2
IN2
NF2
BVN2
BIN2
BVO2
TIN2
TVO2
TVO2
OUT2
VC
TC
BC
CK
DATA
DATA
LATCH
VREF
32
31
30
29
28
27
26
25
– POWER Board –
IC303
LA4601N (TYPE A, B, C)
OUT1
GND
VCC
OUT2
IN2
GND
IN1
FIL
TER
P.
P.
ST
ANDBY
10
9
8
7
6
5
4
3
2
1
PRE
DRIVE AMP
INPUT
AMP
STANDBY
SWITCH
RIPPLE
FILTER
TSD
PROTECTOR
POP NOISE
PREVENTION
CIRCUIT
REFERENCE
AMP
OUTPUT
AMP
PRE
DRIVE AMP
INPUT
AMP
OUTPUT
AMP
IC303
BA5417 (TYPE D)
STANDBY
T.S.D.
BS
FILTER
PRE GND2
PRE GND1
NF2
IN2
IN1
NF1
FIL
TER
STBY
POWER GND
BS1
OUT1
VCC
OUT2
10
3 4 5
6
BS
BS2
2
NC
1
8
9
7
11 12
13
14 15
+
–
–
+
–
–
– 76 –
6-20.
IC PIN FUNCTION DESCRIPTION
•
LCD BOARD IC501 CXP83620-011Q (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
C-SCOR
I
Subcode sync (S0+S1) detection signal input from the CXD2589Q (IC703)
2
RMC
I
Sircs remote control signal input terminal Not used (fixed at “L”)
3
BUZZER
O
Buzzer sound signal output terminal
4
LED
O
LED drive signal output of the ALARM indicator (D602) “L”: LED on
5
C-SENS
I
Internal status signal (sense signal) input from the CXD2589Q (IC703)
6
C-SENS2
I
Internal status signal (sense signal) input from the CXA1992BR (IC701)
7
C-SQCK
O
Subcode Q data reading clock signal output to the CXD2589Q (IC703)
8
C-SQSO
I
Subcode Q data input from the CXD2589Q (IC703)
9
C-RST
O
System reset signal output to the CXA1992BR (IC701) and CXD2589Q (IC703) “L”: reset
10
C-CLOCK
O
Serial data transfer clock signal output to the CXD2589Q (IC703)
11
C-LATCH
O
Serial data latch pulse signal output to the CXD2589Q (IC703)
12
C-DATA
O
Serial data output to the CXD2589Q (IC703)
13
REC
I
Record/playback detection signal input terminal “L”: recording mode, “H”: playback mode
14
R-COUNT
I
PLL serial data input from the FM/AM PLL (IC2)
15
R-DATA
O
PLL serial data output to the FM/AM PLL (IC2)
16
R-CLOCK
O
PLL serial data transfer clock signal output to the FM/AM PLL (IC2)
17
R-LATCH
O
PLL serial data latch pulse signal output to the FM/AM PLL (IC2)
18
V-LATCH
O
Serial data latch pulse signal output to the electrical volume (IC302)
19
V-DATA
O
Serial data output to the electrical volume (IC302)
20
V-CLOCK
O
Serial data transfer clock signal output to the electrical volume (IC302)
21
P-CON
O
Power on/off control signal output to the power supply circuit, and power amplifier (IC303)
“L”: standby mode, “H”: power on
“L”: standby mode, “H”: power on
22
DC1
I
DC level check input of the dry battery and AC input (+9V check) (A/D input)
23
DC2
I
DC level check input of the dry battery (+6V check) (A/D input)
24
DC3
I
DC level check input of the dry battery (+3V check) (A/D input)
25
KEY1
I
Key input terminal (A/D input) S601 to S606 (ALARM, TIMER, SLEEP, DISPLAY, MEM
ENT, PLAY MODE MONO/ST ISS, SOUND keys input)
ENT, PLAY MODE MONO/ST ISS, SOUND keys input)
26
KEY2
I
Key input terminal (A/D input) S609 to S615 (x, u, CLOCK, MEGA BASS, START/
STOP, . # CLOCK, > 3 CLOCK keys input)
STOP, . # CLOCK, > 3 CLOCK keys input)
27
KEY3
I
Key input terminal (A/D input) S617, S619 to S624 (POWER, BAND, VOL +, VOL –,
PRESET –, PRESET +, AUTO PRESET keys input)
PRESET –, PRESET +, AUTO PRESET keys input)
28
MODE CHECK
I
Destination setting terminal
29
SHIFT CLOCK
O
Shift clock output of the main system clock (4.19 MHz) “H” active
Initial setting signal output terminal
Initial setting signal output terminal
30
RST
I
System reset signal input from the reset signal generator (IC503) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
31
EXTAL
I
Main system clock input terminal (4.19 MHz)
32
XTAL
O
Main system clock output terminal (4.19 MHz)
33
VSS
—
Ground terminal
34
VL
O
Liquid crystal display drive bias control signal output terminal
35 to 37
VLC3 to VLC1
—
Terminal for doubler circuit capacitor connection to develop liquid crystal display drive voltage
38 to 41
COM0 to COM3
O
Common drive signal output to the liquid crystal display (LCD501)
42 to 64
SEG0 to SEG22
O
Segment drive signal output to the liquid crystal display (LCD501)
65
MOTOR ON
O
Capstan/reel motor (M301) on/off control signal output terminal
66
A-MUTE
O
Audio muting on/off control signal output to the electrical volume (IC302) “H”: muting on
– 77 –
Pin No.
Pin Name
I/O
Description
67
B-MUTE
O
Tuner muting on/off control signal output terminal “H”: muting on
68
C-MUTE
O
Digital muting on/off control signal output to the CXD2589Q (IC703) “H”: muting on
69
TAPE
O
Tape function control signal output to the TA2068N (IC301)
“L”: radio or CD on, “H”: tape on
“L”: radio or CD on, “H”: tape on
70
RADIO
O
Power on/off control signal output for the radio +6V power supply “H”: radio power on
71
CD
O
Power on/off control signal output for the CD +5V power supply, and CD function control signal
output to the TA2068N (IC301) “L”: CD power on (CD on)
output to the TA2068N (IC301) “L”: CD power on (CD on)
72
VDD
—
Power supply terminal (+5V)
73
TX
O
Sub system clock output terminal (32.768 kHz)
74
TEX
I
Sub system clock input terminal (32.768 kHz)
75
NC
O
Not used (open)
76
ISS1
O
ISS 1 on/off control signal output terminal “H”: ISS 1 on
77
ISS2
O
ISS 2 on/off control signal output terminal “H”: ISS 2 on
78
C-DOOR
I
CD lid open/close detection switch (S701) input terminal “L”: CD lid is closed
79
TC-PLAY
I
Tape play detection switch (S304) input terminal “L”: tape play mode
80
REG CHK
I
Regulator check signal input of the AC input or battery input “H” active
– 78 –
(1)
LOWER CABINET SECTION
SECTION 7
EXPLODED VIEWS
Les composants identifiés par une
marque 0 sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
marque 0 sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
The components identified by
mark 0 or dotted line with mark
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Hardware (# mark) list and accessories are
given in the last of the electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
• Abbreviation
AR
: Argentine model
AUS : Australian model
CND : Canadian model
CND : Canadian model
E92 : Central and South
America model
MX : Mexican model
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
3-039-471-01 FOOT
2
3-039-317-01 CASE (BATT)
3
3-039-330-01 TERMINAL (-) (B), BATTERY
* 4
1-677-316-11 BATT (-) BOARD
5
3-039-328-01 TERMINAL (+.-), BATTERY
6
3-039-327-01 TERMINAL (-), BATTERY
* 7
A-3322-177-A POWER BOARD, COMPLETE
(US, CND, E92, MX)
* 7
A-3322-465-A POWER BOARD, COMPLETE (SP, AR, AUS)
* 8
1-677-315-11 BATT (+) BOARD
9
3-039-318-01 LID, BATTERY CASE (SILVER)
9
3-039-318-12 LID, BATTERY CASE (GREEN)
9
3-039-318-22 LID, BATTERY CASE (BLUE)
11
3-039-316-01 CABINET (LOWER) (US)
11
3-039-316-31 CABINET (LOWER) (EXCEPT US)
12
3-042-234-01 INSULATED PLATE (T) (TYPE A)
13
4-812-134-11 RIVET (DIA. 3.5), NYLON (TYPE A)
0 T901
1-431-230-11 TRANSFORMER, POWER (US, E92, MX)
0 T901
1-431-230-21 TRANSFORMER, POWER (CND)
0 T901
1-431-231-11 TRANSFORMER, POWER (SP, AR, AUS)
3
4
5
2
7
9
8
not
supplied
supplied
T901
1
#1
#1
#1
11
#2
#2
TYPE A
#2
6
12
13
#2
SP
: Singapore model
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