KDC-C565FM/C465FM
KDC-C565FM/C465FM
MICROCOMPUTER DESCRIPTION
ADJUSTMENT
5
6
q
RF MODULATOR UNIT
1. DC balance adjustment (VR301)
While observing the waveform with a oscilloscope at
pin 13 of IC301, adjust VR301 to minimize the
waveform level.
2. PLL control voltage adjustment (VC301)
First set the transmission frequency to *87.9 MHz with
the commander, then adjust VC301 so that the DC
Voltage at the + pole of C317, measured using a
multimeter or digital tester, is + 3V (
± 0.1 V).
3. Modulation level adjustment (VR303)
The method using a standard receiver or tuner.
Adjust VR303 so that the output level from the
standard receiver or tuner is as specified.
System
µ-com : UPD784214GC (X32- : IC7)
qTerminal description
1
TOUT
O
Test output.
2
TSTB
O
Text data strobe signal.
3
-
O
NC.
4
FOK
I
H: Focusing OK. L: Focusing NG.
5
X OFF
O
H: Servo IC oscillation OFF.
6
RST
O
L: Servo IC reset.
7AO
O
H: Parameter setting.
L: Address register setting.
8
STB
O
L: Data latch.
9
VDD
Power supply connection.
10
X2
-
Oscillator.
11
X1
I
Oscillator.
12
VSS
I
GND.
13
XT2
-
NC.
14
XT1
GND.
15
RESET
I
L: Reset.
16
BSY
17
MGSW
I
H: Holder IN. L: Holder OUT.
18
EJSW
I
H: Eject.
19
COMMSW
I
H: New. L: Old.
20
PACK
I
Text data pack sync signal.
21
CHCON
I
Changer control.
22
BUDET
I
B-U detection.
23
AVDD
I
A/D converter power supply.
24
AVREF
I
A/D converter reference
voltage.
25
HOT
I
High temperature detection.
26
LPS
I
Position detection.
27
LOESW
I
L: Loading completed.
28
LIMSW
I
L: PU limit switch ON.
29
TOFF
I
Tracking off mode.
30
ADJSEL
I
H: Servo Adjustment OFF.
L: Servo Adjustment ON.
31
TBANK
I
H: Gain UP. L: Normal.
32
SIM3
33
AVSS
GND.
34
LPSCO
O
A/D converter power supply.
H: OFF.
35
AMUTE
O
L: Muting ON.
36
AVREF1
A/D converter power supply.
37
SDI
I
Servo data input.
38
SDO
O
Servo data output.
39
SCK
O
Servo clock output.
40
DATAH
I
Data input from H/U.
41
DATAC
O
Data output to H/U.
42
HCLK
I/O
H: Clock input.
L: Clock output.
Pin No.
Pin Name
I/O
Description
43
REQC
O
Communication request to
H/U.
44
CHMUTE
O
L: Muting ON.
45
TSO
O
Text data output.
46
TSI
I
Text data input.
47
TSCK
O
Text clock output.
48~55
A0~A7
O
S-RAM address setting.
56~63
D0~D7
I/O
S-RAM data input/output.
64~68
A8~A12
O
S-RAM address setting.
69~71
A13~A15
O
S-RAM enable control.
72
VSS
GND.
73, 74
A16, A17
O
S-RAM enable control.
75
RAMOK
O
H: OK.
76
ELVADJ
I
L: Adjustment mode.
77
RD
O
S-RAM read control.
78
WR
O
S-RAM write control.
79
WAIT
I
Wait during S-RAM access.
80
ASTB
O
NC.
81
VDD
Power supply connection.
82
RAMTEST
I
H: S-RAM check mode.
83
REQH
I
Communication request from
H/U.
84
SP/LO+
O
Spindle/Loading + control.
85
SP/LO-
O
Spindle/Loading - control.
86
ELV+
O
Mechanism UP/DOWN control.
87
ELV-
O
Mechanism UP/DOWN control.
88
SIM1
I
L: Text. H: No Text.
89
SEARCH
O
H: Play. L: Search.
90, 91
TEST1, 2
I
L: Normal. H: Test.
92
8V/7V
O
H: 7 V. L: 8 V (Servo power
supply).
93
SLG
I
H: +3 dB. L: 0 dB (Sled gain).
94
TEST/VPP
I
L: Flash ROM program mode
OFF.
95
SRVSEL
I
H: Servo mode.
96
SLNSA
I
L: Sled non-sensible area ON.
97
SDA
I/O
EEPROM data input/output.
98
SCL
O
EEPROM clock output.
99
PON
O
L: Power ON.
100
ARMSW
I
H: Arm switch ON.
Pin No.
Pin Name
I/O
Description
q
LPS initial position adjustment procedure
Connect the changer to the H/U. While holding the
magazine eject button of the changer, press the reset button
of the H/U and, in about 1 second, release the magazine
eject button. Press the CD button of the H/U to enter the
E-88 mode. Move the mechanism deck to around the 1st
stage by pressing the DISC- or DISC+ button.
Insert the adjustment tool into the tool hole on the changer
mechanism. Then press the DISC+ button to move the
mechanism deck until the mechanism's slider hits the
adjustment tool. When the motor locks (stops) press the
REPEAT key of the H/U.
When the REPEAT key is pressed, the mechanism moves
automatically to the 1st stage and the initial position
adjustment completes. (The data is written in the E2PROM
at this time.)
