Sharp MD-C2 Service Manual page 85

ICU00 VHiLC75397E-1:Audio Processor (LR75397E) (1/2)
Terminal Name
Pin No.
1* RBB1 Bus input/output terminal
2* RBB2 Bus input/output terminal
3* RBBOUT Bus input/output terminal
4 RTIN Equalizer input terminal
5 RF1C1 Capacitor and resistor connection terminal for configuring the F1 band equalizer filter.
6 RF1C2 Capacitor and resistor connection terminal for configuring the F1 band equalizer filter.
7 RF2C1 Capacitor and resistor connection terminal for configuring the F2 band equalizer filter.
8 RF2C2 Capacitor and resistor connection terminal for configuring the F2 band equalizer filter.
9 RF3C1 Capacitor and resistor connection terminal for configuring the F3 band equalizer filter.
10 RF3C2 Capacitor and resistor connection terminal for configuring the F3 band equalizer filter.
11 RF3C3 Capacitor and resistor connection terminal for configuring the F3 band equalizer filter.
12 RF4 Capacitor connection terminal for configuring the F4 band equalizer filter
13 RTOUT Equalizer output terminal
14 RVR1IN Rch volume 1 input terminal
15 RVR2IN Rch volume 2 input terminal
16*, 17* NC NO CONNECTION terminals.
18 RVR2OUT Rch volume 2 output terminal
19 RVR1OUT Rch volume 1 output terminal
20* NC NO CONNECTION terminals. leave open or connect to VSS.
21 VREF 0.5 for analog ground x VDD power generation section.
To measure power ripple, connect a 50 - 60 F capacitor between Vref and AVSS(VSS).
22 TEST Electronic volume test terminal.
Should be at VSS potential.
23 CL Serial data and clock control terminal
24 DI Serial data and clock control terminal
25 CE Chip enable terminal
Data is written into the internal latch when the level changes from "H" to "L", and each analog switch is polled.
The "H" level enables data transfer.
26 VDD Ground terminal
27*~29* NC NO CONNECTION terminals. leave open or connect to VSS.
30 LVR1OUT Lch volume 1 output terminal
31 LVR2OUT Lch volume 2 output terminal
32* LVR3OUT Lch volume 3 output terminal
33* LVR3IN Lch volume 3 input terminal
34 LVR2IN Lch volume 2 input terminal
35 LVR1IN Lch volume 1 input terminal
36 LTOUT Equalizer output terminal
37 LF4 Capacitor connection terminal for configuring the F4 band equalizer filter
38 LF3C3 Capacitor and resistor connection terminal for configuration the F3 band equalizer filter
39 LF3C2 Capacitor and resistor connection terminal for configuration the F3 band equalizer filter
40 LF3C1 Capacitor and resistor connection terminal for configuration the F3 band equalizer filter
41 LF2C2 Capacitor and resistor connection terminal for configuration the F2 band equalizer filter
42 LF2C1 Capacitor and resistor connection terminal for configuration the F2 band equalizer filter
43 LF1C2 Capacitor and resistor connection terminal for configuration the F1 band equalizer filter
44 LF1C1 Capacitor and resistor connection terminal for configuration the F1 band equalizer filter
45 LTIN Equalizer input terminal
46* LBBOUT Bus input/output terminal
47* LBB2 Bus input/output terminal
48* LBB1 Bus input/output terminal
49 LSEL0 Input selector, output terminal
50* L6 Input signal terminal
51* L5 Input signal terminal
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function
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MD-C2