JVC XM-P55, Service Manual

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XM-P55
XM-PJ1
2-1
37
38
PEAK
RF
39 RFAGC
40 AGCI
41 COMPO
42 COMPP
43 ADDC
44 OPO
45 OPN
46 RFO
47 MORFI
48
1 2
MORFO
24
23
Vcc
3TADJ
22 EQADJ
21 VREF
20 F0CNT
19 XSTBY
18 XLAT
17 SCLK
16 SWDT
15 TEMP R
14 TEMP I
13 GND
I
J
3
VC
4
A
5
B
6
C
7
D
8
E
9
F
10
PD
11
APC
12
APCREF
36 35
BOTM ABCD
34
FE
33
AUX
32
ADFG
31
ADAGC
30
ADIN
29
ADFM
28
SE
27
CSLED
26
TE
25
WBLADJ
Peak, Bottom Detector
AGC, EQ
USER
Comp
USER
OP Amp
RF Amp
3T Detector
ABCD Amp
I-V Amp APC
TEMP Amp
MUX FE Amp
ADIP Amp TE/SE Amp
CPU
Command I/F
CXA2523AR(IC310):MD RF & Servo
1.Block Diagram
2.Pin Function
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
I-V converted RF signal I input.
I-V converted RF signal J input.
Vcc/2 voltage output.
A current input for main beam servo signal.
B current input for main beam servo signal.
C current input for main beam servo signal.
D current input for main beam servo signal.
E current input for side beam servo signal.
F current input for side beam servo signal.
Reflection light quantity monitor signal input.
Laser APC output.
Reference voltage input for the laser power intensity setting.
Connect to GND.
Connects the temperature sensor.
Connects the temperature sensor. outputs the reference voltage.
Data input for microcomputer serial interface.
Shift clock input for microcomputer serial interface.
Latch signal input for microcomputer serial interface.Latched when low.
Standby setting pin. Normal operation when high Standby when low.
Internal current source setting pin.
I
J
VC
A
B
C
D
E
F
PD
APC
APCREF
GND
TEMPI
TEMP R
SWDT
SCLK
XLAT
XSTBY
F0CNT
I
I
O
I
I
I
I
I
I
I
O
I
-
I
I
I
I
I
I
I
Pin No.
Symbol
I/O
Function
Description of Major ICs