Philips CDM4-mechanism

Collapse
X
Collapse
 
  • Page of 1
  • Time
  • Show
Clear All
new posts
Previous template Next
  • Xenon-Codex
    Senior Member
    • Jan 2018
    • 186
    • Finland
    #1

    Philips CDM4-mechanism

    Two totally different cd-players, but the mechanism was almost plug and play, only needed to change the connector for the spin motor. Technics SL-PJ28A -> Marantz CD-40.
    Note: SL-PJ28A is more different with identical looking SL-PJ28 than the Marantz...
    Attached Files

    if you find these attachements useful please consider making a small donation to the site

    Tags: None
    • Xenon-Codex
      Senior Member
      • Jan 2018
      • 186
      • Finland
      #2
      Re: Philips CDM4-mechanism

      Is there any adjustment, sometimes it skips a bit when "cold" while playing CD-R's. No skips when it has been on for a couple of minutes.

        Comment

        • stj
          Great Sage 齊天大聖
          • Dec 2009
          • 31300
          • Albion
          #3
          Re: Philips CDM4-mechanism

          that will be a capacitor,
          they have better performance when warm

            Comment

            • Xenon-Codex
              Senior Member
              • Jan 2018
              • 186
              • Finland
              #4
              Re: Philips CDM4-mechanism

              Originally posted by stj
              that will be a capacitor,
              they have better performance when warm
              Where's that cap? I got the player as it would not play to the end, and made some clonking sounds. I can still hear those occasionally.

                Comment

                • UNITRAX
                  Senior Member
                  • Jan 2023
                  • 64
                  • POLAND
                  #5
                  Re: Philips CDM4-mechanism

                  https://www.diyaudio.com/community/t...sports.372412/

                  Page one, post three

                    Comment

                    • Xenon-Codex
                      Senior Member
                      • Jan 2018
                      • 186
                      • Finland
                      #6
                      Re: Philips CDM4-mechanism

                      Changed the cap to 22u (which the old one was), but first it went only worse. The original cap had 6% Vloss. Then I changed to 47u which was in the service manual, it seem to work better.

                        Comment

                        • Xenon-Codex
                          Senior Member
                          • Jan 2018
                          • 186
                          • Finland
                          #7
                          Re: Philips CDM4-mechanism

                          It was the clamp. I managed to move the fault to another identical Technics, only by moving the clamp. It had a dip in the middle of the small plastic thing which should be smooth.

                            Comment

                            Previous template Next

                            Related Topics

                            Collapse
                            • Sharpa
                              Repair attempt Philips 55OLED804/12
                              by Sharpa
                              Hello,

                              I bought a SH Philips 55OLED804/12 TV with known defect in an attempt to repair it for personal use.

                              The symptoms when bought: Philips logo appears then tv turns off

                              Things tried so far:

                              1. Powering it on: Philips logo shows on the screen, sometimes with some minor artefacts then shuts down. Red status led flickers rapidly into two batches then repeats
                              2. Put it in recovery mode by pressing joystick down then plugging it to mains: The tv shows the logo then shows the android animation along with some minor artefacts on the screen...
                              11-22-2025, 08:30 AM
                            • ohren
                              What problems could this blown cap cause in a Marantz SR5400?
                              by ohren
                              I'm looking at a vented C513 in a Marantz SR5400 (photo included), in the FR section on page 24 in the service manual (https://audiocircuit.dk/downloads/ma...400-avr-sm.pdf).

                              R533 right below it in the photo is charred, but measures the correct value.

                              1. I'm not familiar with amplifier circuits (at all — don't know the difference between classes, etc.) so I was wondering what problems would manifest from a supposedly non-operational C513? I didn't hear anything odd when testing the output channel with a speaker. Is there a simple test that can be done...
                              c513 r533
                              1 Photo
                              10-21-2025, 09:02 AM
                            • alro7779
                              Philips 32PFL4901/F8 BA4GF0F0102 2 Not getting standby led
                              by alro7779
                              Hello, guys!

                              The same 32" Philips TV I was having video issues, but now I don't have standby led at all. Someone here shared with me the schematic of the power supply, and checking the voltages, I see right after the resistor R604 I'm getting 1.6 v which is too low for enabling the Gate of the Q601 mosfet (the diagram says 4.2). On the R614 resistor I'm getting 181 V in and 117 V out, then through R603 I'm getting the same 117 V in and 59.9 V out, finally getting the latter voltage in the R604 BUT getting just 1.6 V out, which is the voltage that goes on to the Gate of the Q601...
                              09-14-2025, 12:25 AM
                            • G33RT
                              Philips 8200 series 65PUS8204/12 stuck at Philips Logo
                              by G33RT
                              Philips 8200 series 65PUS8204/12 stuck at Philips Logo, it does not reboot it just stays on the logo.

                              It does power up when pressing the power button.

                              I already try the power button while plugin the plug with no result.
                              Also put the latest firmware autorun-TPM191E_R.001.004.100.000.upg on a MBR/FAT32 USB stick at USB port2 with no result either.

                              Could this be an PSU or eMMC issue ?
                              07-19-2025, 03:43 AM
                            • double_DD
                              Philips curling iron - is this a common AC cable?
                              by double_DD
                              Hi all,

                              Wife has 2 Philips hair curling irons half defective - after learning how they're supposed to work and testing them, it turned out that both have defective power cables, and both on the same place; broken wires due to wire bending.
                              As they were both relatively easy to disassemble, and cables are plugged not soldered (as they can rotate in the handle), I was sure it would be easy to find replacements. But - NO! I'm unable to find anything similar on ebay or Aliexpress.

                              Not sure if this is something Philips proprietary, or a standard, but the cable plug...
                              08-18-2025, 10:04 AM
                            • Loading...
                            • No more items.
                            Working...