Sharp MD-E9000H Service Manual page 82

MD-E9000H
IC1101 VHiiR3R58M/-1: RF Signal Processor (IR3R58M)
Terminal Name
Pin No.
1 RF1 RF signal input terminal 1. Input of RF signal output of pickup.
2 RF2 RF signal input terminal 2. Input of RF signal output of pickup.
3 RF3 RF signal input terminal 3. Input of RF signal output of pickup.
4 RF4 RF signal input terminal 4. Input of RF signal output of pickup.
5 REFI Reference voltage amplifier input terminal.
6 REFO Reference voltage amplifier output terminal.
7 AOUT Output terminal 1 of signal amplifier for servo (focus servo system).
8 ASW Output terminal 2 of signal amplifier for servo (focus servo system).
9 AIN Reverse input terminal of signal amplifier for servo (focus servo system).
10 BIN Reverse input terminal of signal amplifier for servo (focus servo system)
11 BSW Output terminal 2 of signal amplifier for servo (focus servo system).
12 BOUT Output terminal 1 of signal amplifier for servo (focus servo system).
13 EOUT Output terminal 1 of signal amplifier for servo (tracking servo system).
14 ESW Output terminal 2 of signal amplifier for servo (tracking servo system).
15 EIN Reverse input terminal of signal amplifier for servo (tracking servo system).
16 FIN Reverse input terminal of signal amplifier for servo (tracking servo system).
17 FSW Output terminal 2 of signal amplifier for servo (tracking servo system).
18 FOUT Output terminal 1 of signal amplifier for servo (tracking servo system).
19 EOUT Output terminal 1 of signal amplifier for servo (tracking servo system).
20 BOUT Output terminal 1 of signal amplifier for servo (focus servo system).
21 AOUT Output terminal 1 of signal amplifier for servo (focus servo system).
22 TCGO Group mode: Track cross detection signal amplifier output terminal.
23 TCGI Group mode: Track cross detection signal amplifier input terminal.
24 RFADD Resistance addition output terminal of RF1 - RF4.
25 DTEMP Chip temperature detection terminal.
26 SGAIN Switch section control terminal of amplifier for servo.
27 DISC Pit mode, groove mode selecting control terminal.
28* OPICPW Power output terminal for OPIC.
29 VCC2 Power supply terminal of digital section and power section.
30* WBO Comparator output terminal for binary coded ADIP signal.
31 GND2 GND terminal of digital section and power section.
32 ADIPO ADIP signal pre-amplifier output terminal.
33* ADIPNF ADIP signal AGC amplifier output terminal.
34 ADAGC Smoothing capacitor connection terminal for ADIP signal AGC.
35 ADAGI ADIP signal AGC amplifier input terminal.
36 2-1 Differential signal of RF1, RF2.
37 EFMO RF signal AGC amplifier output terminal.
38 DCNF Smoothing capacitor connection terminal for RF signal AGC amplifier reference voltage.
39 EFMAGC Smoothing capacitor connection terminal for RF signal AGC.
40 VCC1 Analog section power supply terminal.
41 BIAS Bias input terminal.
42 GND1 Analog section GND terminal.
43 NIN RF signal AGC amplifier reverse input terminal.
44 PITG Pit mode: Ground terminal.
45 3 + 4 Groove mode: Resistance addition output terminal of RF3 and RF4.
46 PIN RF signal AGC amplifier non-reverse input terminal.
47 1 + 2 Groove mode: Resistance addition output terminal of RF1 and RF2.
48 1234 Pit mode: Resistance addition output terminal of RF1 - RF4.
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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Function