Sharp CD-MD3000H Service Manual page 101

IC1101 VHiiR3R58M/-1:RF Signal Processor (IR3R58M)
Terminal Name
Pin No.
1 RF1
2 RF2
3 RF3
4 RF4
5 REFI
6 REFO
7 AOUT
8 ASW
9 AIN
10 BIN
11 BSW
12 BOUT
13 EOUT
14 ESW
15 EIN
16 FIN
17 FSW
18 FOUT
19 EOUT
20 BOUT
21 AOUT
22 TCGO
23 TCGI
24 RFADD
25 DTEMP
26 SGAIN
27 DISC
28* OPICPW
29 VCC2
30* WBO
31 GND2
32 ADIPO
33* ADIPNF
34 ADAGC
35 ADAGI
36 2-1
37 EFMO
38 DCNF
39 EFMAGC
40 VCC1
41 BIAS
42 GND1
43 NIN
44 PITG
45 3 + 4
46 PIN
47 1 + 2
48 1234
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
RF signal input terminal 1. Input of RF signal output of pickup
RF signal input terminal 2. Input of RF signal output of pickup
RF signal input terminal 3. Input of RF signal output of pickup
RF signal input terminal 4. Input of RF signal output of pickup
Reference voltage amplifier input terminal
Reference voltage amplifier output terminal
Output terminal 1 of signal amplifier for servo (focus servo system)
Output terminal 2 of signal amplifier for servo (focus servo system)
Reverse input terminal of signal amplifier for servo (focus servo system)
Reverse input terminal of signal amplifier for servo (focus servo system)
Output terminal 2 of signal amplifier for servo (focus servo system)
Output terminal 1 of signal amplifier for servo (focus servo system)
Output terminal 1 of signal amplifier for servo (tracking servo system)
Output terminal 2 of signal amplifier for servo (tracking servo system)
Reverse input terminal of signal amplifier for servo (tracking servo system)
Reverse input terminal of signal amplifier for servo (tracking servo system)
Output terminal 2 of signal amplifier for servo (tracking servo system)
Output terminal 1 of signal amplifier for servo (tracking servo system)
Output terminal 1 of signal amplifier for servo (tracking servo system)
Output terminal 1 of signal amplifier for servo (focus servo system)
Output terminal 1 of signal amplifier for servo (focus servo system)
Group mode: Track cross detection signal amplifier output terminal
Group mode: Track cross detection signal amplifier input terminal
Resistance addition output terminal of RF1 - RF4
Chip temperature detection terminal
Switch section control terminal of amplifier for servo
Pit mode, groove mode selecting control terminal
Power output terminal for OPIC
Power supply terminal of digital section and power section
Comparator output terminal for binary coded ADIP signal
GND terminal of digital section and power section
ADIP signal preamplifier output terminal
ADIP signal AGC amplifier output terminal
Smoothing capacitor connection terminal for ADIP signal AGC
ADIP signal AGC amplifier input terminal
Differential signal of RF1, RF2
RF signal AGC amplifier output terminal
Smoothing capacitor connection terminal for RF signal AGC amplifier reference voltage
Smoothing capacitor connection terminal for RF signal AGC
Analog section power supply terminal
Bias input terminal
Analog section GND terminal
RF signal AGC amplifier reverse input terminal
Pit mode: Ground terminal
Groove mode: Resistance addition output terminal of RF3 and RF4
RF signal AGC amplifier non-reverse input terminal
Groove mode: Resistance addition output terminal of RF1 and RF2
Pit mode: Resistance addition output terminal of RF1 - RF4
Function
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CD-MD3000H/CD-MD3000W