A5 series debug guide презентация

CHIP RESISTOR

DIODE
P
N

Diode bridge

IGBT

IRF530

IC (2272）
mark

32V
5V
15V
5V
Rectifier
/filter
Device
module
DC switch power supply
motor
MAIN IC
trimming
Back tacking
footlift
Thread tension
Current feedback
AC
encoder
pedal
footlift solenoid
Protect switch
DC 300V
32V/15V 5V/3.3V
32V
5V
panel
Solenoid connector
32V
lamp
5V
PCBA
A5 series diagram block
3.3V

AHE58

POWER SUPPLY BLOCK
rectifier/filter
AC 220V
DC 300V
Switch Power Supply
To control IC
DC 15V U10(7815)
To CHIP IC
DC 5V U27(7805)
To Panel
DC 5V U24(7805)
To solenoid
DC 32V

Device Module Block
J2
Encoder signal
Main IC U2
Motor angel signal
HALL signal
UP position signal
Power Control IC U17
Q21 Q19
Q24 Q23
Q18 Q17
J4
motor
15V
3.3V
IGBT
U20
current feedback
1
7

SOLENOID CIRCUIT
Master Chip U2
U7
U8
U29
U3
U4
U23
Q6
Q1
Q7
Q8
U27
U23
Q5
J7
Trimming
Wiping
Back tacking
Foot-lift
Thread Tension
Manual back tacking
Buffer circuit

POWER BOARD
Solenoid control
footlift
Thread
tension
Back
tacking
wiping
Trimm
ing
DC power supply
5V
15V
HMI 5V

Control Board
MIAN IC
Rectifier
/filter
Device
Control
3.3V

Power Board
Control Board

Err-01
Test
Test
Test
Test
Test

Power board
Control board
C9
C8
U10
2136
IGBT

Control board

Control board

Err-07
Test
Test

2272

Control board

Err-08
Test
Test
Test
Test

Power board
Control board
U10
2136
IGBT

Control board

Control board

Err-09
Test
Test
Test

IGBT

Power Supply

Err-10
Test
Test
Test
Test
Test

U27
D18
U26
U2
POWER BOARD
CONTROL BOARD
U6
U2
U27

POWER BOARD

CONTROL BOARD

Err-13
Test
Test
Test

CONTROL BOARD

CONTROL BOARD

AHE59

Replace bad part
Visual check component damaged?
Test
Replace bad part
Test
PASS
Y
Y
N
Power on, measure power board U10 have 15V，if not or too low or too high, replace U10
Replace bad part
Use diode range measure control board Q17/Q18/Q19/Q21/Q23/Q24 damaged or not
Test
Replace u17
Test
Test
Use diode range and resistor measure TVS3 R151 RTV2 R150 damaged or not
Replace bad part
Err-01
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
N
N

Reverse side
IGBT
R150 R151 TVS2 TVS3
Positive
U10
2136

Replace bad part
Visual check component damaged?
Test
Replace bad part
Test
PASS
Y
Y
N
Power on, measure power board U10 have 15V，if not or too low or too high, replace U10
Replace bad part
Use diode range measure control board Q17/Q18/Q19/Q21/Q23/Q24 damaged or not
Test
Replace u17
Test
Test
Use diode range and resistor measure TVS3 R151 RTV2 R150 damaged or not
Replace bad part
Err-08
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
N
N

Reverse side
IGBT
R150 R151 TVS2 TVS3
Positive
U10
2136

Replace bad part
Visual check component damaged?
Test
Replace bad part
Test
PASS
Y
Use DC range measure power biard U24 pin1&3 have 5v output or not，if not replace U24
Replace bad part
Use diode range measure D16 on control board damaged or not
Test
Replace U3 U11
Test
Test
Measure R82 R57/ resistance value is correct
Err-10
Y
Y
Y
Y
Y
Y
Y
N
N
N
N
N
N
Replace bad part
Y

Reverse side
U24
D16
Positive
1