Sony CDX-F5550 Service Manual ▷ View online
29
CDX-F5550
Pin No.
Pin Name
I/O
Pin Description
65
XUART
I
Sony-Bus/MC-Bus change signal input H: Sony-Bus, L: MC-Bus
66
ZMUTE
O
Zero detection mute signal output
67
MECON CHK
I
MECON rising detection signal input
68
CDON CHK
I
CDON rising detection signal input
69 to 74
NC
—
Not used. (Open)
75
RSTX
I
System reset signal input
76
NC
—
Not used. (Open)
77
X1A
—
Sub-clock connect pin Not used in this set. (Open)
78
X0A
—
Sub-clock connect pin Not used in this set. (Connect to Vss.)
79
VSS
—
Ground pin
80
X0
I
Main-clock connect pin (12 MHz)
81
X1
O
Main-clock connect pin (12 MHz)
82
VCC
—
Power supply pin (+3.3 V)
83
XTS
I
Not used in this set. (Open)
84
XINIT3
I
Not used in this set. (Open)
85
NC
—
Not used. (Open)
86
XSJIG
I
Not used in this set. (Open)
87 to 89
XINIT0 to 2
I
Not used in this set. (Open)
90 to 97
NC
—
Not used. (Open)
98
XLINE
I
Not used in this set. (Open)
99, 100
NC
—
Not used. (Open)
30
CDX-F5550
• IC501 MB90487APF-G-123-BNDE1 (SYSTEM CONTROL) (MAIN BOARD (2/2))
Pin No.
Pin Name
I/O
Pin Description
1
AREA SEL2
I
Destination setting pin
2
AREA SEL1
I
Destination setting pin
3
AREA SEL0
I
Destination setting pin
4
NCO
I
Not used
5
BEEP
O
Beep signal output
6
NCO
I
Not used
7
NOSE SW
I
Front panel open/close detect signal input
8
DIAG
I
Power AMP status signal input
9
VOL ATT
O
Electronic volume attenuate control signal output
10
NCO
O
Not used
11
VSS
—
Ground
12
TU ATT
O
Tuner mute control signal output
13
NS MASK
O
Noise mask signal output
14
ILLUMI SEL1
I
Illumination voltage setting pin
15
ILLUMI SEL2
I
Illumination voltage setting pin
16
NCO
O
Not used
17
AUX IN
O
Not used
18
NCO
O
Not used
19
NCO
O
Not used
20
NCO
O
Not used
21
NCO
O
Not used
22
NCO
O
Not used
23
VCC5
—
Power supply pin (+3.3V)
24
EEP SIO
I/O
EEPROM bus serial data input/output
25
EEP CKO
O
EEPROM bus serial clock output
26
AMP STB
O
Power AMP satandby signal output
27
LCD CE
O
LCD driver chip enable output
28
LCD SO
O
LCD driver serial data output
29
LCD SCK
O
LCD driver serial clock output
30
RDS ON
O
RDS ON signal output
31
NCO
O
Not used
32
NCO
O
Not used
33
I2C SCK
O
I2C bus serial clock output
34
I2C SIO
I/O
I2C bus serial data input/output
35
DAVDD
—
A/D converter power supply pin (+3.3V)
36
AVRH
—
A/D converter reference power supply pin (+3.3V)
37
DAVSS
—
Ground
38
QUALITY
I
Noise detect signal input
39
VSM
I
S-meter voltage detect signal input
40
KEY IN1
I
Key signal input
41
KEY IN0
I
Key signal input
42
VSS
—
Ground
43
RC IN0
I
Rotary commander key signal input
44
SA_IN
I
Spectrum analyzer data signal input (Not used in this set)
45
SA_CKO
O
Spectrum analyzer clock signal output (Not used in this set)
46
NCO
O
Not used
47
NCO
O
Not used
48
NCO
O
Not used
49
MD0
I
Operation mode setting pin
50
MD1
I
Operation mode setting pin
51
MD2
I
Operation mode setting pin
52
KEY ACK
I
Key acknowledgment detect signal input
31
CDX-F5550
Pin No.
Pin Name
I/O
Pin Description
53
TU ATT IN
I
Tuner mute zero cross detect signal input
54
BU IN
I
Back-up power supply detect signal input
55
NCO
O
Not used
56
DAVN
I
RDS data block synchronized detect signal input
57
NCO
O
Not used
58
UNI SI
I
SONY bus data input
59
UNI SO
O
SONY bus data output
60
UNI SCK
O
SONY bus clock output
61
NCO
O
Not used
62
NCO
O
Not used
63
NCO
O
Not used
64
SIRCS
I
Remote control signal input
65
NCO
O
Not used
66
NCO
O
Not used
67
NCO
O
Not used
68
FLASH W
I
Memory mode select signal input
69
NCO
O
Not used
70
SYNCHRO SW
I
Synchro CD door open/close detect signal input
71
RC IN1
I
Rotary commander shift key signal input
72
ACC IN
I
Accessory power supply detect signal input
73
TEST IN
I
Test mode detect signal input
74
TEL ATT
I
Telephone attenuate detect signal input
75
ILLU IN
I
Illumination detect signal input
76
XKEY ON
O
A/D converter power supply control signal output
77
RESET
I
CPU reset input
78
NCO
O
Not used
79
XIN
—
Sub-clock input (32.768kHz)
80
XOUT
—
Sub-clock output (32.768kHz)
81
VSS1
—
Ground
82
OSC IN
—
Main-clock input (3.68MHz)
83
OSC OUT
—
Main-clock output (3.68MHz)
84
VCC3
—
Power supply pin (+3.3V)
85
DEMO SEL
I
Demo select signal input
86
ATT
O
Audio mute control signal output
87
BUS ON
O
Bus ON signal output
88
SYS RST
O
System reset output
89
EJECT OK SW
O
Eject OK signal output
90
NCO
O
Not used
91
NCO
O
Not used
92
NCO
O
Not used
93
Z-MUTE
I
Z-Mute signal input
94
NCO
O
Not used
95
NCO
O
Not used
96
NCO
O
Not used
97
NCO
O
Not used
98
CD ON
I
CD servo power control request signal input
99
CDM ON
I
CD deck power control request signal input
100
NCO
O
Not used
32
CDX-F5550
SECTION 4
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remark
4-1. MAIN SECTION
Ref. No.
Part No.
Description
Remark
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
Some delay should be anticipated
when ordering these items.
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Color Indication of Appearance Parts
Example :
KNOB, BALANCE (WHITE) ... (RED)
Parts Color Cabinet’s Color
• Accessories are given in the last of this
parts list.
R
R
1
X-3384-259-1 LOCK ASSY
2
1-792-195-31 CABLE, FLEXIBLE FLAT (14 CORE)
3
3-246-441-01 BUTTON (EJECT)
4
3-260-247-01 CUSHION (SUB PANEL)
5
3-042-244-01 SCREW (T)
6
X-3384-364-3 SUB PANEL ASSY
7
X-3384-203-1 GEAR ASSY
8
3-713-786-51 SCREW +P 2X3
9
2-050-124-01 SCREW +BTT 2.6X5
10
A-1085-118-A MAIN BOARD, COMPLETE
11
2-021-848-01 SHEET (TU), GROUND
12
1-776-527-61 CORD (WITH CONNECTOR) (ISO) (POWER)
FU601
1-532-877-11 FUSE (BLADE TYPE) (AUTO FUSE) 10A
TU1
A-3220-961-A TUNER UNIT (TUX-032)
#1
7-685-792-09 SCREW +PTT 2.6X6 (S)
#2
7-685-790-01 SCREW +PTT 2.6X4 (S)
#6
7-685-793-09 SCREW +PTT 2.6X8 (S)
FU601
11
#1
A
A
B
B
not supplied
not supplied
not supplied
not supplied
not supplied
(SUB board)
(SUB board)
TU1
not supplied
#1
#1
#1
#2
#6
MG-611TA-186//Q
1
4
2
5
6
7
8
5
3
9
12
10
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Click on the first or last page to see other CDX-F5550 service manuals if exist.