Sony CFD-922L (serv.man2) Service Manual ▷ View online
6-1. IC PIN DESCRIPTION
• IC501 CXP83620-022Q (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Pin Description
1
C-SCOR
I
CD SCOR input
2
RMC
I
Sircs receiver input
3
MUTE
O
MUTE output H: Mute
4
ADJ
O
F TEX frequency division output
5
C-SCLK
O
CD SENSE read clock output
6
C-SENS
I
CD SENSE input
7
C-SQCK
O
CD Sub-Q read clock output
8
C-SQSO
I
CD Sub-Q data input
9
C-XRST
O
CD system reset output
10
C-CLOCK
O
CD system clock output
11
C-LATCH
O
CD system latch output
12
C-DATA
O
CD command data output
13
C-AGCCONT
O
CD AGC control output
14
R-COUNT
I
Tuner PLL data input
15
R-CLOCK
O
Tuner PLL clock output
16
R-DATA
O
Tuner PLL data output
17
R-LATCH
O
Tuner PLL latch output
18
V-LATCH
O
Volume latch output Not used. (Open)
19
V-DATA
O
Volume data output
20
V-CLOCK
O
Volume clock output
21
P-CON
O
System power control output H: PCON
22
REG CHK
I
Regulator check signal input
23
REC
I
Tape record signal input H: REC
24
SDA
I/O
EEPROM input/output
25 – 28
KEY-1 – 4
I
Key input
29
MODE CHECK
I
Mode set input
30
RST
I
System reset input
31
EXTAL
I
Oscillation input (4.19 MHz)
32
XTAL
O
Oscillation output (4.19 MHz)
33
VSS
—
GND
34
VL
O
LCD drive port ON/OFF output
35 – 37
VLC3 – 1
O
LCD drive voltage output
38 – 41
COM0 – 3
O
LCD drive common output
42 – 58
SEG0 – 16
O
LCD drive segment output
59
SEG17
O
LCD drive segment output Not used. (Open)
60, 61
NC
—
Not used. (Open)
62
INIT
O
Initial set signal output
63
TONE
O
TONE control output L: TONE-Hi, H: TONE-Lo
64
MEGA BASS
O
MEGA BASS control output H: MEGA BASS off, L: MEGA BASS on
65
BT-CHK
O
Battery check input H: BT-CHK
66
MT-CONT
O
MT control input H: MT-CONT
67
ISS1
O
ISS1 output H: ISS1
68
ISS2
O
ISS2 output H: ISS2
69
TAPE
O
Tape function output H: Tape
70
RADIO
O
Tuner function output H: Radio
71
CD
O
CD function output H: CD
72
VDD
—
Power supply pin (+3.3 V)
73
TX
O
Oscillation output (153.6 kHz)
74
TEX
I
Oscillation input (153.6 kHz)
Pin No.
Pin Name
I/O
Pin Description
75
NC
—
Not used. (Open)
76
A-MUTE
O
Audio mute output H: Mute
77
SCL
O
EEPROM clock output
78
EC
I
Event counter input
79
TC-PLAY
I
Tape play switch input L: Tape
80
C-DOOR
I
CD door open/close switch input L: Close
– 17 –
– 18 –
6-2. CIRCUIT BOARDS LOCATION
SECTION 6
DIAGRAMS
CONTROL board
LCD board
SECONDARY board
POWER board
PRE board
MAIN board
CD board
BATTERY board
HALF BATTERY board
TUNER board
SHILD board
CFD-922L
6-3. BLOCK DIAGRAM — CD SECTION —
– 19 –
– 20 –
A
C
B
E
F
D
LD
PD
LD POWER
CONTROL
Q701
PD1
PD2
LD
PD
E
F
VC
12
CNP701
10
11
13
7
5
14
16
9
3
2
4
1
RFO
FE
TE
AGC CONT
8
7
10
LD ON
19
2
5
3
18
11
13
15
4
RF AMP
IC701
2
13
14
TRACKING
COIL
DRIVE
24
20
FOCUS
COIL
DRIVE
TFDR
3
TRDR
FFDR
23
FRDR
5
SFDR
6
SRDR
SLED
MOTOR
DRIVE
25
SPINDLE
MOTOR
DRIVE
SPIN
VREF
MUTE
T+
T–
17
18
F+
F–
12
11
SL+
SL–
15
16
SP+
SP–
TRACKING
COIL
FOCUS
COIL
OPTICAL PICK-UP
BLOCK
(KSS-213C)
M
M
M702
SLED
MOTOR
M701
SPINDLE
MOTOR
SLED/SPINDLE
MOTOR DRIVE,
TRACKING/FOCUS
COIL DRIVE
IC703
S702
(LIMIT)
RFAC
RFDC
FE
SE
SE
TE
VC
CE
INTERNAL
BUS
EFM DEMODULATOR
CPU
INTERFACE
MDP
XLON
SENS
SQSO
SCOR
SSTP
SQCK
DATA
XLAT
CLK
SCLK
XRST
XTAO
XTAI
D/A
INTERFACE
OVER
SAMPLING
DIGITAL
FILTER
&
SERIAL
IN
INTERFACE
SERVO
INTERFACE
&
SERVO AUTO
SEQUENCER
AOUT1
LOUT1
AOUT2
LOUT2
PWM
AMP
PWM
AMP
CD R
1
2
51
39
40
41
38
42
26
27 14
8 1
20
2
5 6 7
66
67
9
3
70
72
77
75
SYSTEM SERVO PROCESSOR,
DIGITAL SIGNAL PROCESSOR
IC702
13
70
80
6 8 7
12 11 10 5
9
1
X701
16.9344MHz
C-AGC
CONT
C-SENS
C-SQSO
C-SQCK
C-SCOR
C-DATA
C-LATCH
C-CLOCK
C-SCLK
C-XRST
C-DOOR
CD
RADIO
71
CD
SYSTEM CONTROL
IC501 (1/2)
RADIO
6V REG
Q513,514
CD
3.3V REG
Q511,512
Q511,512
3.3V REG
IC502
AUDIO 6V
RA6V
COM 3.3V
CD3.3V
65 BT-CHK
22 REG CHK
66 MT-CONT
S501
CD DOOR
OPEN/
CLOSE
3
3
3
2
3.3V
KH321
3
6 13 12 4
9
8
7 5
1
1
2
2
1
3
1
3
CNP902
POWER
SWITCH
Q951
POWER
SWITCH
Q952,953
AUDIO
6V REG
Q955
COM
3.3V REG
Q957
P. CONT
VDD
VDD
D955
D951
D952
VDD(SW)
COM 3.3V
AUDIO 6V
SECONDARY BOARD
AC-HI
VDD
CNB901(1/2)
CNP901
BATTERY
BOARD
POWER
BOARD
4
1
2
D901 - 904
T901
POWER
TRANSFORMER
CNJ901
AC IN
CNB901(2/2)
CNP904
3
CD BOARD
04
MAIN BOARD (1/2)
HALF
BATTERY
BOARD
• Signal path
: CD
R-ch : same as L-ch.
LD ON
SWITCH
Q702
REG,AC
BATTERY
CHECK
Q501-504
SUB CODE
PROCESSOR
DIGITAL
CLV
TIMING
LOGIC
ASYMMETRY
CORRECTION
CORRECTION
&
DIGITAL
PLL
OPERATIONAL
AMPLIFIER
ANALOG SWITCH
&
A/D
CONVERTER
TFDR
TRDR
FFDR
FFDR
FRDR
SFDR
SRDR
30
31
32
33
28
29
SERVO
DSP
&
PWM
GENERATOR
27
15
12 5 6 14
9 10 11 13
11
7
TF
TR
FF
FR
SF
SR
FF
FR
SF
SR
TF
TR
VREF
43
CNP702(1/2)
CNP502(1/2)
D956
VDD
VDD(SW)
D509
D511
VREF
VREF
CNP702(2/2)
CNP502(2/2)
CNP505(1/3)
15
3
3
F902
CD L
VREF
DRY BATTERY
SIZE " D "
(IEC DESIGNATION R20)
6PCS,9V
4.5V
4.5V
6-4. BLOCK DIAGRAM — MAIN SECTION —
CFD-922L
– 21 –
– 22 –
1
CD L
5
21
22
16
4
CNP301(1/3)
L-CH
R-CH
HRP301
RECORD/PLAYBACK
HEAD
HE301
ERASE HEAD
DET
ALC 2
RADIO L
18
15
L.LO
CNP301
(3/3)
R.LO
LINE
TAPE
R-CH
R-CH
VIN2
CNP505
(3/3)
(3/3)
VOUT2
LOGIC
CONTROL
5
CLOCK
4
DATA
VOLUME/SOUND CONTROL
IC302
POWER AMP
IC304
P.CONT
R-CH
SP301
SPEAKER
(L-CH)
SP302
SPEAKER
(R-CH)
J321
REF
L.LIN
L.RO
REC
L.RAD
R.RAD
T301
REC BIAS OSC
Q301
REC
23
TAPE
69
V-CLOCK
V-DATA
P-CON
38–41
42–58
73•74
25–28
17 16 15 14
LIQUID CRYSTAL
DISPLAY PANEL
LCD501
SYSTEM CONTROL
IC501 (2/2)
20 19
3
21
MEGA BASS
64
COM0
|
COM3
SEG0
|
SEG16
R-LATCH
R-CLOCK
R-DATA
R-COUNT
30
RST
MUTE
KEY1
|
KEY4
31
EXTAL
32
XTAL
TX
TEX
TUNER
X501
4.19MHz
X502
153.6kHz
RESET
IC503
3.3V
VOL
2-5
2-5
S601-604
S606-626
S606-626
CNP601
CNP501
6
6
VDD (SW)
D601
OPR/BATT
29
MODE CHECK
62
INIT
3
Signal path
: FM
: AM
: TAPE PLAY
: TAPE REC
: CD
: FM
: AM
: TAPE PLAY
: TAPE REC
: CD
R-ch : same as L-ch.
CONTROL BOARD
04
PRE BOARD
2
REC/PB
PRE AMP
IC301
MAIN BOARD (2/2)
LCD BOARD
TUNER BOARD
11
5
6
5
MEGA
BASS
CONTROL
Q122
MODE
SWITCH
CONTROL
Q505,506
MODE
SWITCH
Q507
1-4
21-18
5-21
17-1
6
8
6
8
8
9
1
9
1
20
6
14
R.LIN
8
R.IN
L.IN
9
R.RO
i
CNP301(2/3)
CNP505(2/3)
A-MUTE
76
SDA
24
MUTE
Q124
LINE
AMP
AMP
Q121
SCL
77
TC-PLAY
79
M
TAPE
SWITCH
Q997
1
2
CNP551
CNP651
24
-1
-2
S301
(REC/PB)
REC
PB
AUDIO 6V
EEPROM
IC504
SDA
SCL
SCL
VDD(SW)
CNP322
1
2
2
3
4
4
S304
(TAPE PLAY)
M301
CAPSTAN/REEL
MOTOR
17
7
CD3.3V
CD R
3
10
5
10
5
ISS2
68
13
13
ISS1
67
12
12
AC-HI
ISS1
Q303
ISS2
Q302
KH504
(1/2)
(1/2)
5
2
1 2 3 4
11 12
20
19
KH503
KH504
(2/2)
CNP1
11
6
1
1
10
2
9
3
8
4
7
5
CE
CL
DI
DO
AM IN
FM IN
XOUT
XIN
13
MO/ST
10
IF IN
LPF2/MO-ST
LPF1/BAND
IF-OUT
ST-IND
OSC-OUT
9
BAND
7
BAND
8
ST-IND
18 LP-OUT
6 MW/LW
AM
OSC
AM
MIX
FM
MIX
FM
OSC
AM RF-IN
FM
RF-IN
RF-IN
FM
IF-IN
IF-IN
AM
IF-IN
IF-IN
X1
75kHz
PLL
IC2
14
17
13
18
16
15
11
12
19
20
22
4
6
7
10
2
21
24
T1
T2
CF4
L2
L1
CT1
RA6V
RA6V
D1
D2
CT3
CT5
D3
-2
LW
-1
MW
CT3,L3-1
MW
TRACKING
CT5,L3-2
LW
TRACKING
L4
LW FREQUENCY COVERAGE
CT1,L1
FM
TRACKING
L2
FM
FREQUENCY
COVERAGE
T1
MW/LW
IF
T2
FM
IF
ANT1
FM
TELESCOPIC
ANTENNA
IF
BUFFER
AM
DET
FM
DET
IF CUT
AF
BUFFER
FM
MPX
MUTE
AM HIGH
CUT
Q12
Q12
IF CUT
R
L
R-CH
RA6V
QUAD
FM/MW/LW FRONT-END, IF DET,
FM STEREO DEMODULATOR
IC1
L4
RA6V
CF2
RA6V
RA6V
RA6V
MW SW
Q41
L3
MW/LW
FERRITE-ROD
ANTENNA
LW SW
Q43
LW SW
Q44
VDD(SW)
REG
Q61
MW SW
Q42
MW/LW
Q14
RA6V
AM
OSC
MIX-OUT
FN
RF-OUT
RF-OUT
FN OSC
DET-OUT
MPX-IN
IF REQ
Q510
– 23 –
– 24 –
6-5. PRINTED WIRING BOARD — TUNER SECTION — • Refer to page 18 for Circuit Boards Location.
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
04
TP(VT)
DS
G
-1
MW
-2
LW
C29
Note on Printed Wiring Boards:
•
X
: parts extracted from the component side.
•
f
: internal component.
•
b
: Pattern from the side which enables seeing.
CFD-922L
(Page 34)
(Page 33)
D1
E-4
D2
E-4
D3
F-4
D10
B-3
D11
B-3
IC1
D-5
IC2
H-5
Q12
F-5
Q14
H-3
Q41
G-3
Q42
E-3
Q43
G-3
Q44
G-4
Q61
G-4
• Semiconductor
Location
Ref. No.
Location
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