KX-HTS32RU, KX-HTS824RU - Panasonic PBX Service Manual (repair manual)

ORDER NO. KMS1609169CE

KX-HTS32SU

KX-HTS32UE

Saudi Arabia

KX-HTS32ND

Indonesia

Asia

Ver.No

Model No.

Destination

1

KX-HTS32LA

KX-HTS32BR

KX-HTS32MX

KX-HTS32NE

KX-HTS824SX

KX-HTS824BX

KX-HTS824XE

KX-HTS824ML

Latin America

2

KX-HTS32CE

Europe

3

KX-HTS824RU

Russia,Ukraine,Kazakhstan

4

KX-HTS32AG

Argentina

KX-HTS32SA

South Africa

KX-HTS824TW

Taiwan

KX-HTS824

U.S.A.

KX-HTS824NZ

Brazil

Mexico

Europe

India

Latin America,Middle East

Singapore,Hong Kong

Malaysia

2

PAGE

PAGE

1 Safety Precautions -----------------------------------------------3

1.1. For Service Technicians  ---------------------------------3
1.2. Insulation Resistance Test -------------------------------4

2 Warning --------------------------------------------------------------5

2.1. Battery Caution ---------------------------------------------5

2.1.1. Information for Users on Collection and

Disposal of Old Equipment and used
Baries-----------------------------------------------------5

2.2. Caution--------------------------------------------------------6
2.3. About Lead Free Solder (PbF: Pb free) --------------7

2.3.1. Suggested PbF Solder -------------------------------8

2.4. Discarding of P. C. Board --------------------------------8

3 Specifications ------------------------------------------------------9

3.1. General Description ---------------------------------------9
3.2. Characteristics -------------------------------------------- 10

4 Technical Descriptions---------------------------------------- 11

4.1. Block Diagram -------------------------------------------- 11
4.2. Main Unit --------------------------------------------------- 12

4.2.1. CPU/L2SW/DSP/ROM/RAM/USB/RTC ------- 14
4.2.2. Wireless LAN ----------------------------------------- 20
4.2.3. LCOT4 Block ----------------------------------------- 23
4.2.4. SLC8 Block ------------------------------------------- 28
4.2.5. DC-DC Converter ----------------------------------- 33
4.2.6. Battery Interface ------------------------------------- 34

4.3. AC/DC Unit ------------------------------------------------ 35

5 Location of Controls and Components------------------ 36

5.1. Names and Locations ----------------------------------- 36

6 Troubleshooting Guide---------------------------------------- 37

6.1. General Description ------------------------------------- 37
6.2. Power Failure Analysis --------------------------------- 38
6.3. Error Code ------------------------------------------------- 40

6.3.1. CPU ----------------------------------------------------- 43
6.3.2. FAN ----------------------------------------------------- 46
6.3.3. USB ----------------------------------------------------- 47
6.3.4. RTC ----------------------------------------------------- 48
6.3.5. SPI-BUS ----------------------------------------------- 49

6.4. LCOT4 ------------------------------------------------------ 51
6.5. SLC8 -------------------------------------------------------- 55
6.6. VoIP System----------------------------------------------- 60
6.7. Wireless LAN---------------------------------------------- 62
6.8. System Clean Install Procedure ---------------------- 63

6.8.1. Preparation-------------------------------------------- 63
6.8.2. Clean Install Operation----------------------------- 64

7 Disassembly and Assembly Instructions --------------- 65

7.1. Remove the Cable Cover and Upper Cabinet ---- 65
7.2. Main Board and Power Supply Board -------------- 67

7.2.1. Remove the Main Board--------------------------- 67

7.3. Remove the Power Supply Board ------------------- 68
7.4. Assembly the Main Board------------------------------ 69
7.5. Assembly the Power Supply Board------------------ 70
7.6. Assembly the Fan ---------------------------------------- 71
7.7. Assembly for Lead wire--------------------------------- 72

8 Maintenance ------------------------------------------------------ 75

8.1. How To Replace a Flat Package IC ----------------- 75

8.1.1. Preparation-------------------------------------------- 75
8.1.2. Removal Procedure--------------------------------- 75
8.1.3. Procedure --------------------------------------------- 75
8.1.4. Removing Solder From Between Pins --------- 75

8.2. How to Replace the LLP (Leadless Leadframe

Package) IC and IC ground plate-------------------- 76

8.2.1. Preparation ------------------------------------------- 76
8.2.2. Caution ------------------------------------------------ 76
8.2.3. How to Remove the IC ---------------------------- 76
8.2.4. How to Install the IC -------------------------------- 76
8.2.5. How to Remove a Solder Bridge (Doesn't

apply to IC ground plate.) ------------------------- 77

9 Schematic Diagram -------------------------------------------- 78

9.1. Main Board ------------------------------------------------ 78

9.1.1. No.1 ---------------------------------------------------- 78
9.1.2. No.2 ---------------------------------------------------- 79
9.1.3. No.3 ---------------------------------------------------- 80
9.1.4. No.4 ---------------------------------------------------- 81
9.1.5. No.5 ---------------------------------------------------- 82
9.1.6. No.6 ---------------------------------------------------- 83
9.1.7. No.7 ---------------------------------------------------- 84
9.1.8. No.8 ---------------------------------------------------- 85
9.1.9. No.9 ---------------------------------------------------- 86

9.1.10. No.10--------------------------------------------------- 87

9.1.11. No.11 --------------------------------------------------- 88

9.1.12. No.12--------------------------------------------------- 89

10 Printed Circuit Board------------------------------------------ 90

10.1. Main Board ------------------------------------------------ 90

10.1.1. Component View ------------------------------------ 90
10.1.2. Bottom View ------------------------------------------ 91

11 Appendix Information of Schematic Diagram -------- 92

12 Exploded View and Replacement Parts List----------- 93

12.1. Cabinet and Electric Parts----------------------------- 93
12.2. Accessories and Packing Materials ----------------- 94
12.3. Replacement Parts List -------------------------------- 95

12.3.1. Cabinet and Electrical Parts---------------------- 95
12.3.2. Accessories and Packing Materials ------------ 96
12.3.3. Main Board Parts ----------------------------------- 96

13 History------------------------------------------------------------- 186

3

1. Before servicing, unplug the AC power cord to prevent an electric shock.
2. When replacing parts, use only the manufacturer's recommended components.
3. Check the condition of the power cord. Replace if wear or damage is evident.
4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5. Before returning the serviced equipment to the customer, be sure to perform the following insulation resistance test to prevent

the customer from being exposed to shock hazards.

• Repair service shall be provided in accordance with repair technology information such as service manual so as to prevent fires,

injury or electric shock, which can be caused by improper repair work.

1. When repair services are provided, neither the products nor their parts or members shall be remodeled.
2. If a lead wire assembly is supplied as a repair part, the lead wire assembly shall be replaced.
3. FASTON terminals shall be plugged straight in and unplugged straight out.

• ICs and LSIs are vulnerable to static electricity.

When repairing, the following precautions will help prevent recurring malfunctions.

1. Cover plastic parts boxes with aluminum foil.
2. Ground the soldering irons.
3. Use a conductive mat on worktable.
4. Do not grasp IC or LSI pins with bare fingers.

4

1. Unplug the power cord and short the two prongs of the plug with a jumper wire.
2. Turn on the power switch.
3. Measure the resistance value with ohmmeter between the jumpered AC plug and each exposed metal cabinet part, such as

screw threads, control shafts, handle brackets, etc.
Note:

Some exposed parts may be isolated from the chassis by design. These will read infinity.

4. If the measurement is outside the specified limits, there is a possibility of shock hazard. The equipment should be repaired

and rechecked before it is returned to the customer.