Sharp MD-DR470HS Service Manual page 50

MD-DR470H/MD-DR480H
IC601 VHiLV8221T+-1 : Motor Driver (LV8221T) (2/2)
Port Name
Pin No.
49 SLGND GND of 3-phase thread output section.
50* SUCO Position detection comparator output terminal of thread driver section.
51 SUO 3-phase thread U-phase output terminal.
52 SVO 3-phase thread V-phase output terminal.
53* SVCO Position detection comparator output terminal of thread driver section.
54* SWCO Position detection comparator output terminal of thread driver section.
55 SWO 3-phase thread W-phase output terminal.
56 OUT4 Half bridge output terminal.
57 VS4 Half bridge power terminal. A capacitor is connected to the paired GND.
58 PGND4 GND terminal of half bridge output section.
59* SCOM Position detection comparator COM input terminal of thread driver section.
60 WOUT 3-phase spindle W-phase output terminal. A motor coil is connected.
61 VOUT 3-phase spindle V-phase output terminal. A motor coil is connected.
62 COM Position detection comparator COM input terminal of thread driver section.
63 UOUT 3-phase spindle U-phase output terminal. A motor coil is connected.
64 TGND Small signal system GND terminal.
In this unit, the terminal with asterisk mark (*) is open terminal which is not connected to the outside.
IC701 VHiiR3R61U6-1 : Audio Input Amp. (IR3R61U6)
Pin No. Port Name
1 LOUTL Lch attenuator circuit output terminal.
2 DGND Logic input section GND terminal.
3 DATA Shift register serial data input terminal.
4 CLOCK Shift register clock input terminal.
5 LATCH Shift register latch input terminal.
6 LINL Lch attenuator section line input terminal.
7 LINR Rch attenuator section line input terminal.
8 AGND Attenuator section GND terminal.
9 MCINR Rch attenuator section microphone input terminal.
10 MOUTR Rch microphone amplifier output terminal.
11 MCINL Lch attenuator section microphone input terminal.
12 MOUTL Lch microphone amplifier output terminal.
13 BIAS Bias input terminal.
14 MINL Lch Microphone amplifier input terminal.
15 MGND Microphone amplifier section GND terminal.
16 MINR Rch Microphone amplifier input terminal.
17 VCC Positive power supply.
18 VEE Negative power supply.
19 LOUTR Rch attenuator circuit output terminal.
20 AGND Attenuator section GND terminal.
Function
Function
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