iFixit - Active Questions With Device "Numark Turntable"

Numark TT1600: No power to Target light RCA jack

Mon, 08 Sep 2025 11:26:04 -0700

I have 2 Numark TT200. I never had target lights before. I just bought 2 brand new, installed them and they don't work. Anyone have any ideas? Thanks.

⟐ Answer accepted September 08, 2025 at 11:26 MST

Numark Turntable: Numark TT500 - does anyone have the service manual for this turntable?

Sat, 06 Sep 2025 15:11:55 -0700

PCB in mine Numark TT500 died, i looked over all internet and there are several service manuals for every other models of this manufacturere, but i cannot get the one for TT500. Anyone can help please?

⟐ Edited September 06, 2025 at 15:11 MST

Numark TTXUSB: Does anyone have the service manual for the Numark TTXUSB?

Sun, 09 Feb 2025 00:43:00 -0700

I want to repair the motor of this turntable. When being cold it stops turning and sometimes even turns backwards, which gets better after you turned it with your hand a bit. So this sounds like capacitors having got old. Then I could also replace the the 2SB1340 and 2SD1889 transistors. Someone already did some soldering on the motor and added a foil capacitor to stabilize the motors Vin I guess, although its power supply provides a stable voltage. Would like to know what is still original here. Does anyone have experience with this turntable?

⟐ Edited February 09, 2025 at 0:43 MST

Numark TTXUSB: How to fix a Numark TTXUSB spinning backwards?

Sun, 09 Feb 2025 00:42:35 -0700

I want to repair this turntable without buying a new motor PCB or control PCB. In the beginnin it spins normally and then suddenly spins backwards or not at all. After spinning the turntable manually or letting the turntable get warm, it works normally. Thus my guesses are broken diodes (for spinning backwards) and capacitors (because it works after it got warm or stayed on for some time). Internet research said to exchange the motor pcb. I could not locate any diodes on the motor and exchanging the three big capacitors did not resolve the problem. Does anyone have experience with this device? I already asked for a datasheet here Does anyone have the service manual for the Numark TTXUSB? , but it seems that it is an older version of the device, because the numberings of the parts don’t comply with the PCB.

In DJ forums people say to exchange the Toshiba TA7259P IC http://pdf.datasheetcatalog.com/datashee... , which breaks often due to overheating. The PCB in this device, doesn not have this chip, but six complementary 2SB1340 ⁄ 2SD1889 transistors attached to a big heat sink, which apparently do the same job as the Toshiba IC. I could also try to exchange these transistors, but I have no explanation how a broken transistor could result in the platter spinning backwards. I assume that they are used as an amplifying circuit. Please correct my if I am wrong!

⟐ Edited February 09, 2025 at 0:42 MST