Some time ago I bought myself a Owon DS7102V 100MHz oscilloscope. It is similar to the Rigol entry level scope DS1102E, but thinner and with bigger screen. Oh, this beautiful screen, totally worth the money. But as time passed first flaw of this eBay originated scope surfaced - the fan broke. It didn't stop, it just started to make screeching noise whenever I turned it on. When taking aparart for the first time I also managed to break soft power button.. Oh well. I ordered new 12 V 60 x 60 x 10 mm fan and KDC-A11 power button to fix it.

Internal layout is really impressive. One third of the scope is cheap power supply, middle section is battery compartment, and all the scope electronics is one small PCB. Whole scope worth of electronics small enough to put in pocket.

Interesting chips I found from scope:

• TL072 dual JFET operational amplifiers
• LMH6574ma high speed multiplexers
• B3GA4 signal relays
• MXT2002 dual channel ADC with minimum of 500MSa/s (scope is 1GSa/s)
• ADF4360-8 VCO next to ADC
• Spartan-6 xc6slx9 FPGA for everything
• CH7025 VGA encoder 

Internal layout of DS7102V

DS7102V power supply

Old KDC-A11 next to new one. Slight problem with pin sizes.

LCD connector board

Small bodge inductor, probably against ripple on the line.

Keyboard PCB

Analog board top view

Top view with cheap looking ADC, FPGA and ports.

Filters and amplifiers

Signal relays and more analog stuff