Sharp MD-MT866H Service Manual

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MD-MT866H/MD-MT866W
Pin No. Terminal Name
Function
1 SPWIN SPIN detection comparator input (W phase)
2 SPCOM SPIN motor coil's mid-point input terminal
3 EXTCLK Synchronization clock input terminal
4 C1P CHARGEPUMP capacitor 1 connection terminal+
5 C1M CHARGEPUMP capacitor 1 connection terminal–
6 C2P CHARGEPUMP capacitor 2 connection terminal+
7 C2M CHARGEPUMP capacitor 2 connection terminal–
8 VG CHARGEPUMP output
9 SLVM1 Stepping power section power supply 1
10 SLUOUT Stepping motor output (U phase)
11 SLPG1 Stepping power section GND 1
12 SLVOUT Stepping motor output (V phase)
13 SLVM2 Stepping power section power supply 2
14 SWOUT Stepping motor output (W phase)
15 SLPG2 Stepping power section GND 2
16* SLCOM STEP motor coil's mid-point input terminal
17* BEMFW STEP detection comparator output (W phase)
18* BEMFV STEP detection comparator output (V phase)
19* BEMFU STEP detection comparator output (U phase)
20 S3 Stepping decoder input 3
21 S2 Stepping decoder input 2
22 S1 Stepping decoder input 1
23 SGND Small-signal section GND (MOS)
24 ASGND Small-signal section GND (Bip.)
25 STHB H1, H2 bridge mute terminal
26 STALL Stand-by terminal
27 PW1VM Half bridge 1 power section power supply
28 PW1OUT Half bridge 1 output
29 PWPG Half bridge power section GND
30 PW2OUT Half bridge 2 output
31 PW2VM Half bridge 2 power section power supply
32 PWIN2 Half bridge 2 input
33 PWIN1 Half bridge 1 input
34 IN2R H bridge 2 reverse input
35 IN2F H bridge 2 forward input
36 IN1R H bridge 1 reverse input
37 IN1F H bridge 1 forward input
38 H2PG2 H bridge 2 power section GND 2
39 H2ROUT H bridge 2 reverse output
40 H2VM H bridge 2 power section power supply
41 H2FOUT H bridge 2 forward output
42 H2PG1 H bridge 2 power section GND 1
43 H1PG2 H bridge 1 power section GND 2
44 H1ROUT H bridge 1 reverse output
45 H1VM H bridge 1 power section power supply
46 H1FOUT H bridge 1 forward output
47 H1PG1 H bridge 1 power section GND 1
48 CST Start-up oscillation capacitor connection terminal
49 CSL1 Slope capacitor connection terminal 1
50 CSL2 Slope capacitor connection terminal 2
51 FG FG output
IC601 VHiBD6606KV-1 :Motor Driver (BD6606KV) (1/2)
In this unit, the terminal with asterisk mark (*) is open terminal which is not connected to the outside.

Sharp MD-MT866H Specifications

General

Brand	Sharp
Model	MD-MT866H
Category	Minidisc Recorder
Language	English