Pcb Connection Diagram - JUKI HZL-X Series Service Manual

[5] PCB connection diagram

• Microcomputer PCB (Common to HZL-X Series)
CN3 CN4 CN6
LED2 下糸巻き フラッシュ書込み
CN1
RED
CN2
WHT WHT
WHT
押え上げ
押え高さ
CN7
CN5
CN10
CN23
CN12 CN13
CN11
模様選択
CN14
CN15
CN18
CN19
CN21
メインモーター
Connec- Termi-
Destination
tor No. nal No.
CN1 On hand LED PCB 1
CN2 Under arm LED PCB
CN3 On hand LED PCB 2
CN4 Bobbin winding
motor
CN5 Presser-lifter STM
position detection
PCB
CN6 Flash memory inter-
face
CN7 OST SW (Not in-
stalled)
CN8 BH SW
CN9 Main shaft detection
PCB
CN8 CN9
BH 主軸検知
BLK
WHT
BLU
CN26
CN25
CN24
CN17
CN16
CN20
CN22
1 5V
1 5V
1 5V
1 Bobbin winder switch
2 GND
3 Bobbin winder motor (+)
(29V)
4 Bobbin winder motor (-)
1 5V
2 Detection signal
3 GND
1 5V
6 GND
1 Presser foot lifting switch
2 GND
1 GND
2 BHR SW
3 BHS SW
4 5V
1 5V
2 Motor pulse
3 S1
4 S2
5 S3
6 GND
Connec- Termi-
Destination
tor No. nal No.
CN10 SW/slide volume
PCB
CN11 Presser-lifter STM
CN12 Thread trimming
STM original
point detection
PCB
CN13 Presser-lifter STM
original point
detection PCB
CN14 Needle throwing
STM
CN15 Panel PCB
8-11
12-16 LCD signal
19-22 Rotary switch
23-29 Switch data
CN16 For factory
CN17 Microcomputer
panel I/F cable
(asm.)
CN18 Feed STM
– 9 –
1 LED G
2 LED R
3 Reverse stitch switch
4 S/S switch
5 Thread trimming switch
6 Needle up/down switch
7 Auto-lifter switch
8 Lock stitch switch
9 GND
10 Speed control variable
resistor
11 NC
12 5V
1 A
2 A
3 B
4 B
1 Detection signal
2
3 GND
1 Detection signal
2
3 GND
1 A
2 A
3 B
4 B
1-3 LED
4-7
Switch strobe
LCD backlight
17 3.3V
18 GND
30 GND
2 GND
4 GND
1 5V
2 UART Tx
3 UART Rx
4 Clock signal
5 GND
1 A
2 A
3 B
4 B
8.5Ω
8.5Ω
5.0Ω
5.0Ω
4.0Ω
4.0Ω