Cassette Deck Revox B710 mkI vs TEAC V9000 Esoteric vs AIWA AD-F660a

Cassette Deck World 

    80's Example

"Professional"

Revox B710 mkI 

4 Motors DD

ReVox B710 Microcontrolled Cassette Deck

"Audiophile"

TEAC V9000 Esoteric

All AudioGrade Capacitors

TEAC V9000 Esoteric

"Consumer"

AIWA AD-F660

3 Heads, Dual Capstan, Dolby HX PRo, 

ADMS, a lot of Wires....

AIWA AD-F660

AIWA "Spaghetti Made"

Not Working Cassette Deck AIWA AD F660 Repair

Not Working Cassette Deck AIWA Repair.

3 heads, 2 motors (1 for capstains, 1 for reels)
Closed loop dual cpastan, Dolby B, C HX Pro, Bias adjustable. 
ADMS Automatic DeMagnetizing System

Trouble: In Play Mode Capstan Correctly Work but tape go out, Reels don't go

Repair: Not mechanical problem, but electrical, in Power Supply zone; a lot of defective soldering joint!

AIWA AD-F660 Not Working

AIWA DX R&P Heads , Dual Capstan

AIWA Mechanical Detail Dual Capstan Big Motor

Bottom Layer, Power Supply Zone

Defekt