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B : Black Version  
(for Russia) 
(for Kazakhstan, Uzbekistan) 
(for Ukraine) 

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

1.1. For Service Technicians ----------------------------------3
1.2. AC Caution---------------------------------------------------4
1.3. Personal Safety Precautions ----------------------------5
1.4. Service Precautions ---------------------------------------6

2 Warning --------------------------------------------------------------7

2.1. About Lead Free Solder (PbF: Pb free) --------------7
2.2. Insulation Resistance Test -------------------------------7
2.3. Battery Caution ---------------------------------------------7

3 Specifications ------------------------------------------------------8
4 General/Introduction ---------------------------------------------9

4.1. Optional Accessories--------------------------------------9
4.2. Translation Lists --------------------------------------------9

5 Features ------------------------------------------------------------ 10

5.1. ---------------------------------------------------------------- 10

6 Technical Descriptions---------------------------------------- 11

6.1. Connection Diagram------------------------------------- 11
6.2. General Block Diagram --------------------------------- 12
6.3. Control Section ------------------------------------------- 14
6.4. Facsimile Section ---------------------------------------- 20
6.5. Sensors and Switches ---------------------------------- 26
6.6. Modem Section ------------------------------------------- 30
6.7. NCU Section----------------------------------------------- 37
6.8. ITS (Integrated Telephone System) and

Monitor Section ------------------------------------------- 41

6.9. ATAS (Automatic Telephone Answering

System) Section ------------------------------------------ 41

6.10. Operation Board Section ------------------------------- 43

6.11. LCD Section ----------------------------------------------- 44

6.12. Power Supply Board Section-------------------------- 45

7 Location of Controls and Components------------------ 48

7.1. Overview --------------------------------------------------- 48
7.2. Control Panel---------------------------------------------- 49

8 Installation Instructions--------------------------------------- 50

8.1. Installation Space ---------------------------------------- 50
8.2. Connections ----------------------------------------------- 50
8.3. Installing the Recording Paper------------------------ 51

9 Operation Instructions ---------------------------------------- 52

9.1. Setting Your Logo ---------------------------------------- 52

10 Test Mode ---------------------------------------------------------- 54

10.1. DTMF Single Tone Transmit Selection ------------- 55
10.2. Button Code Table --------------------------------------- 55
10.3. Print Test Pattern ----------------------------------------- 55

11 Service Mode ----------------------------------------------------- 56

11.1. Programming and Lists --------------------------------- 56
11.2. The Example of the Printed List ---------------------- 60

12 Troubleshooting Guide---------------------------------------- 64

12.1. Troubleshooting summary ----------------------------- 64
12.2. Error Messages-Display -------------------------------- 65
12.3. Error Messages Report --------------------------------- 66
12.4. Remote Programming----------------------------------- 88
12.5. Troubleshooting Details -------------------------------- 91

13 Service Fixture & Tools ------------------------------------- 117
14 Disassembly and Assembly Instructions ------------- 118

14.1. Disassembly Flowchart --------------------------------118
14.2. Disassembly Procedurel------------------------------ 120

15 Maintenance ---------------------------------------------------- 131

15.1. Maintenance Items and Componet Locations -- 131

15.2. Gear Section --------------------------------------------- 133
15.3. Jams ------------------------------------------------------- 139
15.4. Cleaning--------------------------------------------------- 140

16 Miscellaneous -------------------------------------------------- 141

16.1. Terninal Guide of the ICs, Transistors and

Diodes ----------------------------------------------------- 141

16.2. How to Replace the Flat Package IC -------------- 144
16.3. Test  Chart ------------------------------------------------ 146

17 Schematic Diagram ------------------------------------------- 148

17.1. Digital Board --------------------------------------------- 148
17.2. Analog Board -------------------------------------------- 150
17.3. Operation Board ---------------------------------------- 152
17.4. Power Supply Board ----------------------------------- 153

18 Printed Circuit Board----------------------------------------- 154

18.1. Digital Board --------------------------------------------- 154
18.2. Analogue Board  ---------------------------------------- 156
18.3. Operation Board ---------------------------------------- 158
18.4. Power Supply Board ----------------------------------- 160

19 Appendix Information of Schematic Diagram ------- 161
20 Exploded View and Replacement Parts List---------- 163

20.1. Cabinet, Mechanical and Electrical Parts

Location --------------------------------------------------- 163

20.2. Replacement Parts List ------------------------------- 170
20.3. Cabinet and Mechaical Parts ------------------------ 170
20.4. Digital Board Parts ------------------------------------- 171
20.5. Analog Board Parts ------------------------------------ 174
20.6. Operation Board Parts--------------------------------- 175
20.7. Power Supply Board Parts --------------------------- 176
20.8. Fixtures and Tools -------------------------------------- 176

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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.

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

There are several types of PbF solder available commercially. While this product is manufactured using Tin, Silver, and Copper,
(Sn+Ag+Cu), you can also use Tin and Copper, (Sn+Cu), or Tin, Zinc, and Bismuth, (Sn+Zn+Bi). Please check the manufac-
turer’s specific instructions for the melting points of their products and any precautions for using their product with other 
materials. 
The following lead free (PbF) solder wire sizes are recommended for service of this product: 0.3mm, 0.6mm and 1.0mm.

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P.C.Boards marked as “PbF” use Pb Free solder. (See the figure below.)

Note: The “PbF” marked may be found on different areas of the same P.C.Board,depending on manufacture date.

For safety, before closing the lower cabinet, please make sure of the following precautions.

1. The earth lead is fixed with the screw.
2. The AC lead is connected properly to power supply unit.
3. Wrap the earth lead around the core 5 times.
4. Wrap the AC lead around the core 5 times.