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  • 470uF

    TS555 is OK
    TLC555 is OK too
    just need to be CMOS version of 555

    this last one is ApBerg's choice TLC272 ... you should stick to LM358 if you have that

    Comment


    • Hello Pacu,

      If you have a multymeter connect the com (= ground = black wire) at the - batt from the pcb ( is ground/green tracks on color-bmp pcb)

      The red-meter wire you use to see what volts you have on your PCB.

      For this use the Color drawing that is in replay no. 243
      Orance/brown is the batt. volts , (must be more then 9 volts if not you batt.s are to low)

      red tracks
      must be +5 volt if not then there is a problem with the 78l05 regulator
      blue tracks around -4 volt if not there is a problem with the icl7660

      Check this first ! also check how much current the board takes .. 35-40mA no coil no audio

      Succes...at the end it will work

      Comment


      • There is no problem with that parts, many parts can be replaced by others..but always check the data sheets/info you can find on WWW.
        Newer IC have mostly beter specs or take less current so can be give better results.
        The cap from 220uF-470uF is not a problem... if you leave it out the detector will also work.

        Best regards.

        Ap

        Comment


        • Originally posted by ApBerg View Post
          Hello Pacu,

          If you have a multymeter connect the com (= ground = black wire) at the - batt from the pcb ( is ground/green tracks on color-bmp pcb)

          The red-meter wire you use to see what volts you have on your PCB.

          For this use the Color drawing that is in replay no. 243
          Orance/brown is the batt. volts , (must be more then 9 volts if not you batt.s are to low)

          red tracks
          must be +5 volt if not then there is a problem with the 78l05 regulator
          blue tracks around -4 volt if not there is a problem with the icl7660

          Check this first ! also check how much current the board takes .. 35-40mA no coil no audio

          Succes...at the end it will work

          Click image for larger version

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          The Test Is Look like This or wrong
          I don't know how to use multimeter
          I just want to learn about electronics
          so Im still take time to understand about electronic

          Comment


          • Originally posted by paku View Post
            ok will start check now thanks
            Hello Paku,

            Looking at the copperside from your pcb it looks like that it s made by a CNC machine ? can you tell how it is made ?

            Regards.


            Ap

            Comment


            • put your multy meter in the 20 volt range always select the range that gives the best info... so close to what you think it has to be

              Comment


              • i use Laserjet Printer Toner And photo Glosy Paper and iron fabric to pcb
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                Comment


                • These results are
                  i take out speaker and coil


                  Click image for larger version

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                  These results are
                  i take out speaker and coil
                  Attached Files
                  Last edited by paku; 03-11-2013, 10:48 AM. Reason: update

                  Comment


                  • You will make it , I am sure !

                    But you need a better battery,.... ( 8 x1.2V accu) or there is a problem at the board.
                    Put your meter to dc amps 200mA
                    Connect the red wire from the meter to the + connection from the battery
                    Connect the black wire from the meter to the + batt connection from the pcb
                    Connect the -lead from the battery to the - connection from the pcb
                    Now the meter is in serie's with the pcb board so the current in meter will be the same as in the pcb board

                    This way you read on the meter how much current the PCB take's. If ok it must be without audio around 50-60 mA (depends on the coil you have connected) and with audio on some 80-100mA (depends on the speaker you use)

                    Check this!

                    as my Englisch is not the best...if someone can give a better instruction...

                    Comment


                    • Connect the red wire from the meter to the + connection from the battery = i got 06.4
                      Connect the black wire from the meter to the + batt connection from the pcb = i got 06.6
                      ect the -lead from the battery to the - connection from the pcb = i got 0.7.4

                      Comment


                      • Originally posted by paku View Post
                        Connect the red wire from the meter to the + connection from the battery = i got 06.4
                        Connect the black wire from the meter to the + batt connection from the pcb = i got 06.6
                        ect the -lead from the battery to the - connection from the pcb = i got 0.7.4
                        Take a 8x1.2volt accu pack (or 8x1.5volt batt) and then follow post no.280
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                        Comment


                        • ok i will find that tomorrow

                          Comment


                          • Hello all i make new board Surf Master PCB is that part list is same on surf PI part or not
                            What is defference board.. Surf Master, Surf PI Pro, Oxygen,

                            i get surf pi part from
                            http://www.silverdog.co.uk/shop/imag.../partslist.txt

                            Comment


                            • SURF XX part list (update):
                              C1 22 nF
                              C10 1 nF
                              C11 1 nF
                              C12 1 nF
                              C13 220 uF
                              C14 220 uF
                              C15 220 uF
                              C16 100 nF
                              C19 100pF
                              C2 1000 uF
                              C20 100 nF
                              C3 100 nF
                              C4 100 nF
                              C5 220 nF
                              C6 220 nF
                              C7 1 uF
                              C8 47 nF
                              C9 1 nF
                              D1 1N4148
                              D2 1N4148
                              D3 1N4148
                              D4 1N5819
                              D6 1N4001
                              IC1 TLC555
                              IC2 NE5534
                              IC3 LM358
                              IC4 CD4093
                              IC5 78L05
                              IC6 ICL7660
                              IC7 CD4066
                              P 10k Potentiometer
                              P1 100k Pot. gain
                              P5 10k Pot. delay
                              R1 100k
                              R10 100k Pot. offset
                              R11 22k
                              R12 10k
                              R13 1k
                              R14 1k
                              R15 470k
                              R16 470k
                              R17 10 k
                              R18 47k
                              R2 5k (trimmer) set at 3.3k
                              R20 47k
                              R21 1k
                              R21 1k
                              R22 220k
                              R23 22k
                              R25 5k1
                              R26 51 k
                              R28 240k
                              R29 51k
                              R3 3k3
                              R33 1k Pot. volume
                              R34 150 Ohm
                              R35 100k
                              R36 12 Ohm 1 W
                              R4 2k2
                              R5 1k5
                              R6 390 Ohm 2W
                              R7 1k
                              R8 1k
                              R9 1M Ohm
                              T1 Q1 2N3906
                              T2 Q2 IRF9640
                              T6 Q6 MPSA13

                              Comment


                              • Where are oscilloscope test points for this MD (Surf Pi Pro) ?
                                One is coil ...

                                on schematics there is :
                                PIN 14 and 7 of IC4 4093
                                PIN 8 and 4 of IC3 358
                                PIN 14 and pin 7 of IC7 4066
                                those are test point for voltages

                                Comment

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