Fixing vintage Sony WM-FX271 walkman

Lets get this old Sony WM-FX271 technology working again

Got this Sony Walkman WM-FX271 locally and decided to repair it and restore it to former glory.

First of all lets talk about specs:

Country:  JapanManufacturer / Brand:  Sony Corporation; Tokyo
Year: 1998Category: Broadcast Receiver – or past WW2 Tuner
Semiconductors (the count is only for transistors)Semiconductors present.
Main principlePLL, Phase-locked loop
Wave bandsBroadcast (BC) and FM or UHF.
DetailsCassette-Recorder or -Player
Power type and voltageBatteries / addl. power jack / 2 x 1,5 / 3 Volt
Loudspeaker– only for Earphone!
Power out
from Radiomuseum.orgModel: Walkman FM/AM Radio Cassette Player WM-FX271 – Sony Corporation; Tokyo
MaterialPlastics (no bakelite or catalin)
ShapeVery small Portable or Pocket-Set (Handheld) < 8 inch.
Dimensions (WHD)92 x 115 x 35 mm / 3.6 x 4.5 x 1.4 inch
NotesFrequency range:
FM 87,5 – 108 MHz, AM 531-1602 kHz.
Preset for 30 radio stations.
AVLS, Mega Bass.
Tape modes: Norm/CrO2/Metal.  
Net weight (2.2 lb = 1 kg)0.150 kg / 0 lb 5.3 oz (0.33 lb)
Mentioned in— Original prospect or advert

Here is the repair video:

And here is the high-resolution photos take during the repair:

Repair of Sony Walkman WM FX271
Repair of Sony Walkman WM FX271
LCD and tuner
Repair of Sony Walkman WM FX271
Sony Walkman WM FX271 disassembled
Sony Walkman WM FX271 disassembled
About the Author
Love to tinker all day long

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