Hakko Electronics FX-951 Service Manual
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Cautionary points during use
Warnings, cautions and notes are placed at critical points in this manual to direct the
operator's attention to significant items. They are defined as follows: Please read the
following sentences and understand them sufficiently before reading the main text.
▲WARNING:
Failure to comply with a WARNING may result in serious injury or death.
△CAUTION:
Failure to comply with a CAUTION may result in injury to the operator, or
damage to the items involved.
NOTE:
Indicates the items which operators are likely to make a mistake in and
should pay attention to.
[ For FX951-51 -up ]
Service Manual

TABLE OF CONTENTS

Revision History
Chapter 1 Inspection Flow Chart
Chapter 2 Procedure and Method of Repair
First Edition: March 31, 2007

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Table of Contents
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Summary of Contents for Hakko Electronics FX-951

  • Page 1: Table Of Contents

    First Edition: March 31, 2007 [ For FX951-51 -up ] Service Manual TABLE OF CONTENTS Revision History Chapter 1 Inspection Flow Chart Chapter 2 Procedure and Method of Repair 2-1 Checking the Exterior 2-2 Checking the Power Supply Line 2-3 Checking the Interior 2-4 Voltage Application Check 2-5 Iron Holder Check 2-6 Inspection after Repair...
  • Page 2 Revised date: March 9, 2012 Revision History Revision Date Information Revised Description Approved by Created by First edition Hirai Nishii March 31, 2007 3-2 Station Parts List Change the part number March 9, 2012 for Receptacle. Nagase Nishii B3076 → 699-031236 Revision History (FX-951/FH-200)
  • Page 3: Checking The Exterior

    Checking the Power Supply Line Checking the Power Supply Line Section 2-2 (1)-(4) Section 2-2-(5)(6) Checking the Interior Section 2-3 Voltage Application Check Section 2-4 Iron Holder Check Section 2-5 Inspection after Repair Section 2-6 1 Inspection Flow Chart (FX-951/FH-200)
  • Page 4 If the fuse has blown: Voltage Fuse rating Replace the fuse. 100V-110V 250V-2A If the wrong fuse has been used: 220V-240V 250V-1A Replace the fuse. Hitch a tool into this slot and take out the fuse. 2-1 Checking the Exterior (FX-951/FH-200)...
  • Page 5: Checking The Power Supply Line

    If the resistance value is different from the value in the table above: The power switch or the transformer is faulty. Proceed to steps (5) and (6). If the resistance value is within the above range: Proceed to section 2-3. 2-2 Checking the Power Supply Line (FX-951/FH-200)
  • Page 6 If a resistance value is abnormal: Measure the resistance between the pin (1) on the power switch side and the Replace the transformer. center pin on the power receptacle side (as shown by the arrow). 2-2 Checking the Power Supply Line (FX-951/FH-200)
  • Page 7: Checking The Interior

    (4) Is insulation on the lead wires damaged? If the insulation is damaged: Replace the damaged lead wires. (5) Are there any failures in any of the soldered lead wires? If a soldered section is faulty: Repair each section. 2-3 Checking the Interior (FX-951/FH-200)
  • Page 8: Voltage Application Check

    3. After the version No. (ex. [001]) is 1st digit 3rd digit displayed, the segment of the indicator [Left] will be lit sequentially. NOTE The figures to be displayed vary [DOWN] depending on the version of P.W.B. [UP] 2-4 Voltage Application Check (FX-951/FH-200)
  • Page 9 If a tip temperature does not reach a temperature range: The tip has degenerated or an offset value is incorrect. Replace the tip or correct an offset value as described in step (5) below and check a tip temperature again. 2-4 Voltage Application Check (FX-951/FH-200)
  • Page 10 Power save setting OFF 1 to 29 Indicates “SLP” after the set time has elapsed. Indicates “---” after 30 minutes. NOTE Check the power-save operation according to the procedure in Section 2-5: "Iron Holder Check “ 2-4 Voltage Application Check (FX-951/FH-200)
  • Page 11 If a faulty portion is found: Correct soldering. If a pattern coming off is found: Replace the whole P.W.B.  CAUTION If a fault is not found visually, replace the whole P.W.B. (for control/connector). 2-4 Voltage Application Check (FX-951/FH-200)
  • Page 12: Iron Holder Check

     If the resistance value is ∞: The connecting cable is broken. Replace the connecting cable with a new one. Check the resistance values in the 2 sections A and B. 2-5 Iron holder check (FX-951/FH-200)
  • Page 13 Apply tester here to measure. 5. Connect the connecting cable to the iron holder and FX-951 and then check the power save function. NOTE If the connecting cable is not inserted fully into the jack, the power-save function will not activate.
  • Page 14: Inspection After Repair

    (5) Check the temperature. The tip temperature must be at the setting temperature ±15°C. If an accessory iron is provided, return it to a customer with lead-free  CAUTION solder put on the tip. (To prevent oxidation) 2-6 Inspection after Repair (FX-951/FH-200)
  • Page 15: Chapter 3 Exploded Drawings And Parts List

    First Edition: March 31, 2007 Chapter 3 Exploded Drawings and Parts List Exploded Drawings 3-1 Exploded Drawings (FX-951/FH-200)
  • Page 16: Station Parts List

    B3251 Sales Cleaning sponge A1536 Sales Cleaner base With rubber feet B3249 Sales Stay B3250 Switch case B3252 Sales assembly Two feet for FX-951 station Sales Rubber feet B2016 (Refer to Photo 4-1-5 to 4-1-7) 3-2 Station Parts List (FX-951/FH-200)
  • Page 17 Only receptacle 699-031236 PJ-35N With nut Repair Jack B3329 For case L Repair Cushion rubber A B3086 (Refer to Photo 4-1-5 ) For case R Repair Cushion rubber B B3087 (Refer to Photo 4-1-6 ) 3-2 Station Parts List (FX-951/FH-200)
  • Page 18: Chapter 4 Disassembly Procedure

    Lead wire for jack (white) 4-1-4 Assembly procedure (2) Install the lead wire of the P.W.B. in the depressed section in the case. 4-1 Opening the Cover (FX-951/FH-200)
  • Page 19 First Edition: March 31, 2007 Fig. 4-1- 5 Fig 4-1- 6 Case R Case L Cushion rubber A Cushion rubber B Rubber feet Two rubber feet are installed for each case. Fig.-4-1- 7 4-1 Opening the Cover (FX-951/FH-200)
  • Page 20: For Control/Connector) And Front Panel

    Four screws securing the P.W.B. for control Four screws securing the P.W.B. for connector Reference photo If the 4 screws are removed, the holder in the photo at left will be removed. 4-2 P.W.B. (for Control/Connector) and Front Panel (FX-951/FH-200)
  • Page 21 P.W.B. Appearance where the Run the lead wire under holder was installed and the P.W.B. to insert and secured with screws pull the card smoothly. 4-2 P.W.B. (for Control/Connector) and Front Panel (FX-951/FH-200)
  • Page 22: Power Receptacle, Power Switch And Transformer

    (6) Mount the grounding wire of the power receptacle to the grounding plate with 1 screw (round head screw M4 x 6). (Fig. 4-3-1) NOTE Mount the grounding wire to be aligned parallel with the grounding plate. (7) Close the case. (Refer to Assembly Procedures in Section 4-1.) 4-3 Power Receptacle, Power Switch and Transformer (FX-951/FH-200)
  • Page 23 Assembly procedure (4) Solder the black lead wire of the transformer. Assembly procedures (4) and (5) Solder the black lead wire to the terminals of the power switch and power receptacle. 4-3 Power Receptacle, Power Switch and Transformer (FX-951/FH-200)
  • Page 24: Jack

    Grounding wire in disassembly procedure (3) Secured together with the grounding wire for P.W.B. (6) Desolder the 3 soldered sections of the jack. 4-4-3 Grounding wire for jack White lead wire to be connected to the P.W.B. 3 soldered sections 4-4 Jack (FX-951/FH-200)
  • Page 25 Attach the grounding wires for P.W.B. and jack together. Install the external tooth lock washer between the grounding plate and transformer at the marked position. Run the lead wires for jack as shown in 4-4-9 and 4-4-10. 4-4 Jack (FX-951/FH-200)
  • Page 26: Iron Holder

    (2) Attach one screw (pan head screw with spring washer P2 M3×8) to the iron holder base. (4-5-1) (3) Install the spring in the switch case and attach the switch case to the iron holder base with the 2 screws (Tapping screws M3 × 12). (4-5-1, 4-5-3) 4-5 Iron Holder (FX-951/FH-200)
  • Page 27: Chapter 5 Wiring Diagram

    First Edition: March 31, 2007 Chapter 5 Wiring Diagram Grounding plate Power receptacle Power switch White Black Control P.W.B Transformer Power receptacle P.W.B Jack 5 Wiring Diagram (FX-951/FH-200)

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Fh-200

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