Service required for HP 9160A Optical Card Reader

[jebem]

(01-15-2016 09:59 PM)Jurgen Keller Wrote:  The electrolytic capacitor on PCB2 (near the pins) is fine, resistance rises over time. However, the capacitors on PCB1 (which are of the same type) both show 0 kOhm. So they are faulty I suppose.

Now I have to buy at least the following parts:
1 x Inductor 240 uH
1 x Inductor 470 uH
2 x Electrolytic capacitor 50uF, 25 VDC

Great!
For the caps, the common value is 47uF.
The working voltage must be at least 25Volt to be on the safe side.
Type should be axial for cosmetic reasons meaning it must be electrolytic (tantalum could be used but they are very small and radial, and usually they have much lower internal impedance that can cause other side effects).