Brother LH4-B800E Service Manual page 141

6. ELECTRIC MECHANISM
P10 [HEAD]
Pin No.
1 Emergency stop NC signal
2 0V
3 Emergency stop NO signal
4 +24V
5 -
6 0V
7 +5V
8 Thread breakage detection signal
9 -
10 P8V (+8V)
11 0V
P11 [ORG]
Pin No.
1 +24V
2 Zigzag home position signal
3 0V
4 +5V
5 +24V
6 Feed home position signal
7 0V
8 +5V
9 +24V
10 Presser foot home position signal
11 0V
12 +5V
P13 [FAN12]
Pin No.
1 +24V
2 FAN1 signal
3 0V
6 - 8
Signal name
Signal name
Signal name
Symptoms resulting mainly from poor contact
The emergency stop switch does not operate.
The thread breakage detection does not operate normally.
Symptoms resulting mainly from poor contact
The home position can not be found.
One of error E-05, E-06 and E-07 is displayed.
Symptoms resulting mainly from poor contact
The exhaust fan does not operate.
Error E-42 is displayed.
LH4-B800E