Sharp MD-MX30 Service Manual page 83

IC1101 VHiiR3R55//-1:RF Signal Processor (iR3R55)
Terminal Name
Pin No.
1 RE2 RF signal input terminal 2 .
The RF signal received is applied here.
2 RF1 RF signal input terminal 1 .
The RF signal received is applied here.
3 RF4 RF signal input terminal 4 .
The RF signal received is applied here.
4 RF3 RF signal input terminal 3 .
The RF signal received is applied here.
5 REFI Reference voltage amplifier input terminal
6 REFO Reference voltage amplifier output terminal
7 RFADD Resistance addition output terminal for RF1-4
8 TCGI Groove: Track cross detection signal amplifier input terminal
9 AIN Inverted signal input terminal for the servo signal amplifier (Focus servo system)
10 BIN Inverted signal input terminal for the servo signal amplifier (Focus servo system)
11 EIN Inverted signal input terminal for the servo signal amplifier (Tracking servo system)
12 FIN Inverted signal input terminal for the servo signal amplifier (Tracking servo system)
13 BIAS Bias input terminal
14 AVCC Analog section power terminal
15* STBY Logic signal output terminal (The inverted STBY signal is output.)
16* DISC Logic signal output terminal (The inverted DISC signal is output.)
17* SGAIN Logic signal output terminal (The inverted SGAIN signal is output.)
18 AGND Analog section Ground terminal
19 DGND Digital section Ground terminal
20 DTEMP Chip temperature detection terminal
21 LATCH Latch signal input terminal
22 CLOCK Clock signal input terminal
23 DATA Serial data signal input terminal
24 DVCC Digital section power terminal
25 FOUT Output terminal for the servo signal amplifier (Tracking servo system)
26 EOUT Output terminal for the servo signal amplifier (Tracking servo system)
27 BOUT Output terminal for the servo signal amplifier (Focus servo system)
28 AOUT Output terminal for the servo signal amplifier (Focus servo system)
29 TCGO Groove: Track cross detection signal amplifier output terminal
30 WBO ADIP signal binary-comparison output terminal
31 22KI ADIP signal binary-comparison input terminal
32 22KO ADIP signal HPF amplifier output terminal
33* ADLPFO ADIP signal LPF amplifier output terminal
34* NC Not used
35 ADIPO ADIP signal preamplifier outout terminal
36 ADIPI ADIP signal AGC amplifier outout terminal
37 ADAGC ADIP signal AGC smoothing capacitor terminal
38 ADAGI ADIP signal AGC amplifier input terminal
39 RF2-1 RF1 and RF2 differential signal
40 EFMO RF signal preamplifier output terminal
41* EFMI RF signal AGC amplifier output terminal
42 AVCC Analog section power terminal
43 AGND Analog section ground terminal
44 EFMAGC EFM signal AGC smoothing capacitor terminal
45 EFMAGI EFM signal AGC amplifier input terminal
46* ATTR Attenuated output terminal for the signal on pin 47 or pin 48
47 GOUT Groove: The signal resulting from RF1+RF2-RF3-RF4 is output.
48 POUT Pit: Resistance addition output for RF1-4
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function
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MD-MX30/MX30W