Harman Kardon hk300xm repair

We got very sick baby here, looks like it had quite a fall or tumble. Main board is cracked in few places.
Lets investigate and work on it to fix it to its former glory

Specs

Type: 2-head, single compact cassette deck

Track System: 4-track, 2-channel stereo

Tape Speed: 4.75 cm/s

Heads: 1 x record/playback, 1 x erase

Motor: 1 x capstan, 1 x reel

Tape Type: type I, FeCr, CrO2, Metal

Noise Reduction: B, C

Headroom Extension: HX Pro

Videos

Part 1 of the repair

Photos

Beautiful Harman Kardon hk300xm
Beautiful Harman Kardon hk300xm
Harman Kardon hk300xm inside top view
Harman Kardon hk300xm inside top view
Harman Kardon hk300xm inside main board view
Harman Kardon hk300xm inside main board view
Harman Kardon hk300xm inside powersupply board
Harman Kardon hk300xm inside powersupply board
Harman Kardon hk300xm inside powersupply and control boards
Harman Kardon hk300xm inside powersupply and control boards
Harman Kardon hk300xm inside tape mech and control board
Harman Kardon hk300xm inside tape mech and control board
Harman Kardon hk300xm inside tape mech and control board motor speed adjustment
Harman Kardon hk300xm inside tape mech and control board motor speed adjustment
Harman Kardon hk300xm inside level adjustment
Harman Kardon hk300xm inside level adjustment
Harman Kardon HK300XM crack in the main board
Harman Kardon HK300XM crack in the main board
Harman Kardon HK300XM crack in the main board bottom side
Harman Kardon HK300XM crack in the main board bottom side
Harman Kardon HK300XM crack in the main board bottom side near relays
Harman Kardon HK300XM crack in the main board bottom side near relays
Harman Kardon HK300XM crack in the main board bottom side near relays
Harman Kardon HK300XM crack in the main board bottom side near relays
Harman Kardon HK300XM inside control board close up
Harman Kardon HK300XM inside control board close up

Conclusion

About the Author
Love to tinker all day long

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