Read Sony DHC-MD7 / MDS-M9 Service Manual online
— 49 —
I/O
Function
• IC101 RF Amplifier (CXA1981AR)
Pin No.
5-12. IC PIN FUNCTION
Pin Name
1
2 to 7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47, 48
VC
A to F
FI
FO
PD
APCREF
TEMPI
GND
AAPC
DAPC
TEMPR
XRST
SWDT
SCLK
XLAT
VREF
TENV
THLD
VCC
TFIL
TE
TLB
CSLED
SE
ADFM
ADIN
ADAGC
ADFG
AUX
FE
FLB
ABCD
BOTM
PEAK
RFAGC
RF
ISET
AGCT
RFO
MORFI
MORFO
I, J
O
I
I
O
I
I
I
—
O
O
O
I
I
I
I
O
O
I
—
I
O
I
I
O
O
I
I
O
O
O
I
O
O
O
I
O
I
I
O
I
O
I
Middle point voltage (2.5V) generation output pin
Input of signal from optical block detector
F operation amplifier input
F operation amplifier output
Front monitor. Connected to photo diode
Input pin for setting laser power
Temperature sensor connection pin
Ground pin
APC LD amplifier output pin
Not used (Opened)
Temperature sensor reference voltage output pin
Input of reset signal from system controller (IC201). Reset: “L”
Input of write data signal from system controller (IC201)
Input of clock signal from system controller (IC201)
Input of latch signal from system controller (IC201)
Reference voltage output. Not used in this unit (Opened)
Not used (Opened)
Not used (Connected to VC)
Power supply pin (+5V)
Not used (Opened)
Output of tracking error signal to CXD2535BR (IC121)
Input pin of add signal to tracking error
Sled error LPF pin
Output of sled error signal to CXD2535BR (IC121)
ADIP FM signal output
Inputs ADIP FM signal by AC coupling
Connection pin of external capacitor for ADIP AGC
Output of ADIP dual FM signal to CXD2535BR (IC121) (22.05 kHz
±
1 kHz)
Output of auxiliary signal to CXD2535BR (IC121)
Output of focus error signal to CXD2535BR (IC121)
Not used (Opened)
Output of light amount signal to CXD2535BR (IC121)
Output of bottom hold signal of light amount signal to CXD2535BR (IC121)
Output of peak hold signal of light amount signal to CXD2535BR (IC121)
Connection pin of RF AGC circuit external capacitor
Output of playback EFM RF signal to CXD2535BR (IC121)
Internal circuit constant setting pin. 22 kHz BPF center frequency (Fixed at “H”)
Inputs RF signal by AC coupling
Output pin of RF signal
Inputs MO RF signal by AC coupling
Output pin of MO RF signal
Input of signal from optical block detector
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