1 2 3 4

D D

Power Supply
C3
L1
5V
D2 10uH/2A
100nF DIODE SCHOTTKY

JP1 U6

8
C C
2 12VIN 7 1

BST
VIN SW D3
1 D1
DIODE R1 R5
Power Connector 2 4 POWER
EN FB
100kohm MP1584 180K
3
COMP
6 C10 C5
FREQ

GND
C1 + C4 100nF 22uF
C2 220pF
10uF R2 R4 R15
100uF/25V Tantalum

5
200K 1K
33K
R3
68K

B B

GND

Title
A HM-8118 based Transformer Test control Board A
12V to 5V Step down Power Supply
Size Number Revision
1000-0 2
A4
Date: 4-Jan-2022 Sheet of 1
Drawn By: Chandana

1 2 3 4
 1 2 3 4

U4 LCM-01604DSF LCD Display 5V

Controller &
Interfaces
R33

VCC

DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
VSS

RW
VO

EN
RS
470R

A
K
D D
BZ1

TXD
REL10

REL7
REL9
REL8

REL6
REL5
REL4
REL3
C13 5V

Db0
Db1
Db2
Db3
Db4
Db5
Db6
Db7
44
43
42
41
40
39
38
37
36
35
34
Y1 5V C9 BUZZER
U1 15pf

RD3
RD2
RD1
RD0

NC
RC6
RC5
RC4

RC3
RC2
RC1
32.768KHz VR1 C15 100nF
C14 10K POT

RW
100nF

CD

EN
RXD 1 33
RC7 NC R6 Q1
REL11 2 32 15pf GND GND GND GND R32
RD4 RC0 RB7 2N2222
REL12 3 31 Db6 220R
RD5 RA6
TXD1 4 30 Db7 4.7K
RD6 RA7
RXD1 5 29
RD7 VS JP2
6 28 5V
VSS PIC 18F46K22 VDD MCLR
5V 7 27 CD 1
VDD RE2 C12 5V
REL1 8 26 RW 2
C11 RB0 RE1 100nF GND
FAIL 9 25 EN 3
100nF RB1 RE0 RB7
C PASS 10 24 Db5 4 C
RB2 RA5 RB6
REL14 11 23 Db4 5
RB3 RA4
GND GND GND GND GND
MCLR

ICSP HEADER R34 D6

RA0
RA1
RA2
RA3
RB4
RB5
RB6
RB7

FAIL
NC
NC

1K
RED
12
13
REL2 14
REL1315
RB6 16
RB7 17
MCLR 18
Db0 19
Db1 20
Db2 21
Db3 22

5V PASS R35 D7
C21 1K
GREEN GND
100nF R8 RXD1
U3 1K
GND 20 1
VCC5I TXD R9
4 5 TXD1 HANDLER OUT1 HANDLER OUT2
VCCIO RXD
JP4 17 3 1K
VCC30 RTS#
4 11 PASS 1 FAIL 1
5V CTS#
3 DM 16 2 2 2
D- USBDM DTR#
2 DP 15 9
D+ USBDP DSR#
1 10
B GND DCD# JP6 JP7 B
19 6
RESET RI# GND GND
USB GND
U2 27 13 D4
C16 OSCI GPIO2 R10
1 2 C18 5V 28 23
C1+ V+ OSCO GPIO1
100nF 3 100nF C22 C23 2.2K
C1- RX
7 24 5V
C17 GND AVCC
Bout R11 100uFx3/Tantalam 5V
4 100nF 100nF 18 22 D5
C2+ GND2 GPIO0
Aout
100nF 5 6 C19 21 2.2K
C2- V- GND3 TX
100nF 26 8
TEST VCC3I
Bout
TXD 11 14 GND 25 14 C7 + C8 +
T1in T1out AGND AoutGPIO C6 +
10 7 JP3 12
T2in T2out SLEEP#
TXR 1 GND
TXR
RXD 12 13 RXR 2
R1out R1in RXR FT232RL
5V 9 8 3
R2out R2in GND
C20 4
16 15
100nF 5V GND
RS232 Connector
MAX232A GND GND
GND Title
A HM-8118 based Transformer Test control Board A
Microcontroller & Interfaces
Size Number Revision
1000-0 2
A4
Date: 4-Jan-2022 Sheet of 2
Drawn By: Chandana

1 2 3 4
 1 2 3 4

Solid State Relay Array

D REL9 REL10 REL11 REL12 REL13 REL14 D

R28 R29 R30 R31 R36 R37 R39

470R 470R 470R 470R 470R 470R 470R D8 D18
N11-1 N3-1

TVS TVS
GND GND GND GND GND GND GND D9 D19
2
1

2
1

2
1

2
1

2
1

2
1

2
1
N11-2 N3-2
SSR17 SSR18 SSR19 SSR20 SSR21 SSR22 SSR23
TVS TVS
D10 D20
N12-1 N4-1
G3VM-61 G3VM-61 G3VM-61 G3VM-61 G3VM-61 G3VM-61 G3VM-61
3
4

3
4

3
4

3
4

3
4

3
4

3
4
TVS TVS
D11 D21
N21-1
N21-2

N22-1
N22-2

CurH

CurH
PotH

CurL

CurL
N4-1
N4-2

N5-1
N5-2

PotL
N12-2 N4-2
C TVS C
TVS
REL1 REL2 REL3 REL4 D12 D22
N21-1 N5-1

TVS TVS
R12 R13 R14 R15 R16 R17 R18 R19
470R 470R 470R 470R 470R 470R 470R 470R D13 D23
N21-2 N5-2

TVS TVS
GND GND GND GND GND GND GND GND D14 D24
2
1

2
1

2
1

2
1

2
1

2
1

2
1

2
1
N22-1 N6-1
SSR1 SSR2 SSR3 SSR4 SSR5 SSR6 SSR7 SSR8
TVS TVS
D15 D25
N22-2 N6-2
G3VM-61 G3VM-61 G3VM-61 G3VM-61 G3VM-61 G3VM-61 G3VM-61 G3VM-61
3
4

3
4

3
4

3
4

3
4

3
4

3
4

3
4 TVS TVS

D16 D26
N11-1

N11-2

N12-1

N12-2
PotH

PotH

B B
PotL

PotH

PotH

PotL

PotL
N3-1

N3-2

N6-1

N6-2
PotL

CurH PotH

TVS TVS
REL5 REL6 REL7 REL8 D17 D27
CurL PotL

TVS GND TVS

R20 R21 R22 R23 R24 R25 R26 R27
470R 470R 470R 470R 470R 470R 470R 470R

GND GND GND GND GND GND GND GND

JP5
2
1

2
1

2
1

2
1

2
1

2
1

2
1

2
1

SSR9 SSR10 SSR11 SSR12 SSR13 SSR14 SSR15 SSR16 CurH

CurH
PotH
PotH
CurL
CurL
PotL
PotL
G3VM-61 G3VM-61 G3VM-61 G3VM-61 G3VM-61 G3VM-61 G3VM-61 G3VM-61 GND
3
4

3
4

3
4

3
4

3
4

3
4

3
4

3
4

GND Title
A HM-8118 based Transformer Test control Board A
GND Solid State Relay & ESD protection Circuit
N21-1

N21-2

N22-1

N22-2

GND
CurH
CurH

CurH

CurH

CurL

CurL
CurL

CurL
N4-1

N4-2

N5-1

N5-2

Size Number Revision

GND BNCx4 Connector 1000-0 2
A4
Date: 1-Feb-2022 Sheet of
Drawn By: Chandana

1 2 3 4
 1 2 3 4

D
Transformer D

Test Sockets

T1 T9
T2 N6-2 1 6 N4-2 N4-2 1 67 N3-2
N4-2 1 7 N3-2 2 N5-1 2
N5-1 2 N6-1 3 N5-2 3 6
N5-2 3 6 N3-2 N3-1 4 5 N4-1 N4-1 4 5 N3-1
C N4-1 4 5 N3-1 C
2101 Type
2111 Type 2121 Type 2121 Type

T8 T7 T6 T5 T4 T3
N12-2 1 16 N22-2 N12-2 1 16 N22-2 N12-2 1 16 N22-2 N12-2 1 16 N22-2 N12-2 1 16 N22-2 N12-2 1 16 N22-2
N12-1 2 15 N22-1 N12-1 2 15 N22-1 N12-1 2 15 N22-1 N12-1 2 15 N22-1 N12-1 2 15 N22-1 N12-1 2 15 N22-1

N3-2 3 14 N5-2 N3-2 3 14 N5-2 N3-2 3 14 N5-2 N3-2 3 14 N5-2 N3-2 3 14 N5-2 N6-2 3 14 N5-2
13 N5-1 13 N5-1 13 N5-1 13 N5-1 13 N5-1 N6-1 4 13 N5-1
12 N4-2 12 N4-2 12 N4-2 12 N4-2 12 N4-2 N3-2 5 12 N4-2
N3-1 6 11 N4-1 N3-1 6 11 N4-1 N3-1 6 11 N4-1 N3-1 6 11 N4-1 N3-1 6 11 N4-1 N3-1 6 11 N4-1

N11-2 7 10 N21-2 N11-2 7 10 N21-2 N11-2 7 10 N21-2 N11-2 7 10 N21-2 N11-2 7 10 N21-2 N11-2 7 10 N21-2
N11-1 8 9 N21-1 N11-1 8 9 N21-1 N11-1 8 9 N21-1 N11-1 8 9 N21-1 N11-1 8 9 N21-1 N11-1 8 9 N21-1
B B
2117 Type 2122 Type 2103 Type 2102 Type 2114 Type 2119 Type

Title
A HM-8118 based Transformer Test control Board A
Transformer Test Sockets
Size Number Revision
1000-0 2
A4
Date: 4-Jan-2022 Sheet of 4
Drawn By: Chandana

1 2 3 4