Brother PR600 Service Manual

5 - 15
Failure Investigation
for Electronic Parts
Failure Investigation for Electronic Parts A needle is not threaded normally.
A needle is not threaded normally.
Connect it properly.
N
Y
Y
Is the needle thread sensor's lead
properly connected to CN14 on the
main PCB?
Connect it properly.
N
Y
Is the thread motor's lead properly
connected to CN6 on the main
PCB?
Change needle thread sensor PCB.
Y
Does the machine function normally when the needle
thread sensor PCB is replaced with a reliable one?
N
Change thread motor.
N
Is the resistance between pins 1 and 2,
and 3 and 4 of the thread motor 4.7 - 5.7Ω,
respectively, when the motor's connector
CN6 is removed from the main PCB?
Change main PCB.

Brother PR600 Specifications

General

Type	Embroidery machine
LCD Screen	Yes
USB Port	Yes
Built-in Memory	Yes
Connectivity	USB
Maximum Embroidery Area	200mm
Embroidery Area	200mm
Needle Count	6 needles

Summary

GENERAL INFORMATION

CAUTION

Important safety precautions to follow when handling electronic components and performing repairs.

1 Outline of Mechanism

Main Mechanisms

Describes the main mechanical components of the embroidery machine.

Driveline

Explains the mechanisms for power transmission and movement.

Control system block diagram

Visual representation of the machine's control system architecture and interconnections.

2 Disassembly

Main parts

Explains the disassembly procedures for the main components of the machine.

Feed unit

Details the disassembly of the feed mechanism.

Needle thread unit

Covers the disassembly steps for the needle thread system.

Needle bar unit

Steps for disassembling the needle bar assembly.

3 Assembly

Operation panel

Steps for assembling the machine's control panel and its components.

Needle bar unit

Details the assembly of the needle bar mechanism.

Feed unit

Explains the assembly of the feed mechanism.

Main unit

Procedures for reassembling the main unit of the embroidery machine.

4 Adjustment

Precaution

Important considerations and warnings before performing adjustments.

Test mode

Instructions on how to enter and operate the machine's test modes for diagnostics.

Needle position adjustment (front/back)

Adjusting the needle's front-to-back position relative to the needle plate.

Needle bar height adjustment

Setting the correct height for the needle bar.

5 Failure Investigation for Electronic Parts

Error message list

A comprehensive list of error messages and their corresponding page numbers for troubleshooting.

The power is not turned on

Troubleshooting steps for when the machine does not power on.

The hoop does not move normally

Steps to resolve problems with hoop movement.

The needle bar does not move normally

Diagnosing and resolving issues with needle bar movement.

6 Maintenance