Motor controller truth table

 

Input conditions conn 1006 pin

 

6

8

4

7

3

2

U+

U-

V+

V-

W+

W-

L

M

H

M

M

M

H

M

L

M

M

M

M

M

L

M

H

M

M

M

H

M

L

M

H

M

M

M

L

M

L

M

M

M

H

M

 

Outputs conn 1006

9

 

10

11

UCOIL

 

VCOIL

WCOIL

6V

 

0V

0V

0V

 

6V

6V

0V

 

6V

0V

6V

 

0V

6V

0V

 

0V

6V

6V

 

6V

0V

Figure 8-26

 

Test points on driver

18

 

17

16

HALL_U

 

HALL_V

HALL_W

0V

 

5V

 

5V

 

0V

 

 

 

0V

5V

 

 

5V

0V

5V

 

 

0V

0V

 

 

5V

CL96532086_055.eps 080999

Hall-elements input signal voltage levels

Input voltage

Level

Tolerance

Unit

H

2.8

0.1

V

M

2.5

0.1

V

L

2.2

0.1

V

CL96532086_056.eps 080999

Figure 8-27

8.3.6Tray Control

Description

The tray control consists of a TDA7073A power driver (7021) controlled by the processor 7202 via pin 19 TRAYIN and pin 20 TRAYOUT. If pin 20 is low and pin 19 high, the TRAY+ signal at pin 16 of 7021 is forced to +8V and the TRAY- signal at pin 13 of 7021 to GND : the tray will open. If pin 20 is high and pin 19 low, TRAY+ becomes GND and TRAY- becomes +8V : the tray will close. If pin 19 and 20 of the processor have the same value, TRAY+ and TRAY- will have the same value as well : the tray stops moving.

Measurements

Keep procesor 7202 in reset by forcing pin 7 of connector 1208 to +5V. Connect a load of 15 , 7W between pin 3 and 4 of connector 1002. Check the voltage over the load with TRAY+ (pin 3) as positive reference. Check also the levels of pins 19 and 20 of the processor.

UTRAY+,TRAY- = <100mV Pin 20 = +5V

Pin 19 = +5V

Force pin 20 of the processor to ground, and check the voltages.

U TRAY+,TRAY- = -6.5V( 10% Pin 20 = +0V

Pin 19 = +5V

Force pin 19 of the processor to ground as well and check the levels again.

U TRAY+,TRAY- = <100mV Pin 20 = +0V

Pin 19 = +0V

Release pin 20 of the processor and check the levels. U TRAY+,TRAY- = 6.5V( 10%

Pin 20 = +5V Pin 19 = +0V

Release pin 19 of the processor and check the levels again: U TRAY+,TRAY- = <100mV

Pin 20 = +5V Pin 19 = +5V

28

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Image 30
Marantz MAR770 Input conditions conn 1006 pin Outputs conn, Ucoil Vcoil Wcoil, Test points on driver, Hallu Hallv Hallw

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