Service Manual
Table Of Contents
- Cover
- Table of contents
- Part 1 List of Functions
- Part 2 Specifications
- Part 3 Printed Circuit Board Connector Wiring Diagram
- Part 4 Refrigerant Circuit
- Part 5 Functions and Control
- Part 6 Test Operation and Field Settings
- Part 7 Remote Controller
- Part 8 Troubleshooting
- 1. Troubleshooting with LED
- 2. Service Diagnosis
- 3. Error Codes and Description
- 4. Troubleshooting for CTXG, CTXS, FTXS, CDXS, FDXS, FVXS Series
- 5. Troubleshooting for FFQ Series
- 6. Troubleshooting for Branch Provider (BP) Unit
- 7. Troubleshooting for Outdoor Unit
- 8. Thermistor Resistance/Temperature Characteristics
- 9. Pressure Sensor
- 10. Method of Replacing Inverter’s Power Transistors Modules
- Part 9 Appendix
SiUS181631EA Indoor Unit
Printed Circuit Board Connector Wiring Diagram 27
Display/Signal
Receiver PCB
(A2P)
Caution Replace the PCB if you accidentally cut a wrong jumper.
Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of them.
INTELLIGENT
EYE Sensor PCB
(A3P)
1) S51 Connector for control PCB (A1P)
2) S52 Connector for room temperature thermistor
3) S1W Indoor unit ON/OFF button
4) H1P LED for operation (multi-color)
5) H2P LED for INTELLIGENT EYE (green)
6) JA Address setting jumper
∗
Refer to page 141 for details.
S52
S51
S1W
JA
H2P
H1P
3P357402-2
1) S36 Connector for control PCB (A1P)
S36
3E860004-1