Sony CDX-L300 / CDX-L460X Service Manual ▷ View online
17
CDX-L300/L460X
1
tension spring (KF1)
7
compression spring (FL)
6
floating block assy
8
compression spring (FL)
4
Fit lever (D) in the
direction of the arrow.
2
damper (T)
3
damper (T)
5
Turn loading ring in the
direction of the arrow.
Fig. 1
1
tension spring (RA)
2
arm (roller)
3
retaing ring (RA)
4
shaft retainer
5
shaft roller assy
retaing ring (RA)
arm
arm
washer
washer
shaft retainer
shaft retainer
2-9. FLOATING BLOCK ASSY
2-8. SHAFT ROLLER ASSY
• When installing, take note of the positions
arm (roller) and washers. (Fig. 1)
arm (roller) and washers. (Fig. 1)
18
CDX-L300/L460X
1
P 2x3
4
P 2x3
5
spring (feed), plate
6
shaft (feed) assy
2
sled motor assy
3
optical pick-up block
2-10. OPTICAL PICK-UP BLOCK
19
CDX-L300/L460X
3-1. IC PIN DESCRIPTION
• IC801 µPD780024AGK-B40-9ET (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Pin Description
1
D SW
I
Down switch detection input
2
IN SW
I
Disc in switch detection input
3
PH3
I
PH3 detection input (Not used in this set)
4
LM LD
O
Loading motor drive output (Loading)
5
LM EJ
O
Loading motor drive output (Eject)
6
A ATT
O
Power amplifier mute control output
7
ATT
O
Line out mute control output
8
BEEP
O
BEEP output
9
VSSO
—
Ground
10
VDDO
—
Power supply pin (+5 V)
11
VOL CLK
O
Electric volume clock output
12
VOL DO
O
Electric volume data out output
13
VOL CE
O
Electric volume chip enable output
14
AM ON
O
Tuner AM power supply control output
15
FM ON
O
Tuner FM power supply control output
16
NOSE
I
Front panel attachment detection input
17
PLL DI
I
PLL IC data input
18
LCD DO
O
LCD data output
19
LCD CE
O
LCD chip enable output
20
LCD CLK
O
LCD clock output
21
PLL CLK
O
PLL IC clock output
22
PLL DO
O
PLL IC data output
23
PLL CE
O
PLL IC chip enable output
24
VDD1
—
Power supply pin (+5 V)
25
AVSS
—
Ground
26
ST IND
I
FM STEREO detection input
27
FUN SEL
I
Function select input
28
S METER
I
S meter signal input
29, 30
KEY0, 1
I
A/D key input 0, 1
31
TEL ATT
I
Attenuator signal input
32
DST SEL
I
Destination select input
33
TEST
I
Force test mode input
34
AVREF
—
A/D converter power supply pin (+5 V)
35
AVDD
—
A/D converter power supply pin (+5 V)
36
RESET
I
Reset input
37
XT2
O
Sub clock output (32.768 kHz)
38
XT1
I
Sub clock input (32.768 kHz)
39
IC
—
Connect to Ground in this set.
40
X2
O
Master clock output (8.38 MHz)
41
X1
I
Master clock input (8.38 MHz)
42
VSS1
—
Ground
43
KEY ACK
I
Key acknowledge detection input
44
SIRCS
I
SIRCS input
45
SELF SW
I
Self switch detection input
46
BU IN
I
Backup power supply detection input
47
AD ON
O
Key power supply control output
48
ILL ON
O
Illumination power supply control output
49
AMP ON
O
Amplifier remote power supply control output
50
CDM ON
O
CD mechanism deck power supply control output
51
XCD ON
O
CD DSP IC 16 MHz X’tal ON/OFF control output
52
TU ON
O
Tuner power supply control output
SECTION 3
DIAGRAMS
20
CDX-L300/L460X
Pin No.
Pin Name
I/O
Pin Description
53
P.ON
O
System power supply control output
54
X SO
O
CD DSP IC serial data output
55
X SI
I
CD DSP IC serial data input
56
X SCK
O
CD DSP IC serial clock output
57
RFOK
I
CD servo IC RFOK signal input
58
X RST
O
CD DSP IC reset control output
59
ACC IN
I
Accessory power supply detection input
60
AO
O
CD servo IC command/pallameter discrimination signal output
61
STB
O
CD servo IC data strobe signal output
62
XEN
O
CD DSP IC X’tal control output
63
L SW
I
Limit switch detection input
64
PH1
I
PH1 detection input (Not used in this set)
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