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2SC695 Transistor Replacement on Sanyo DCA-1400

ringading

Well-Known Member
Got this little amplifier for next to nothing. In cosmetically great shape but produced no sound.

I plugged an mp3 player into the main outs and got good sound from there so I am assuming the issues lies likely in the preamp board. The only transistors on the board are 2SC695 according to the SM. Could not find a mention of a replacement here on AK or elsewhere on the web. Before I start looking at components I wanted to get an idea of replacements.

Any suggestions? The replacement for the close 2SC693 was the KSC1845. Would this or the KSC1815 be a decent replacement?

Comparing Specs:

2SC695KSC1815KSC1845
Maximum Collector Power Dissipation (Pc)0.1 W0.4 W0.5 W
Maximum Collector-Base Voltage |Vcb|:20V60V120V
Maximum Collector-Emitter Voltage |Vce|:15V50V120V
Maximum Emitter-Base Voltage |Veb|:5V5V5V
Maximum Collector Current |Ic max|:0.05 A0.15A0.05A
Max. Operating Junction Temperature (Tj):150 C125C150C
Transition Frequency (ft):75MHz80MHz50MHz
Forward Current Transfer Ratio (hFE), MIN:7570200
Noise Figure, dB: -
Package:TO50-1TO-92TO-92

Not sure of the pinout of the 2SC695 yet.
 
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Update:

Looking at the SM more closely, the parts list has them listed as 2SC695:

1742149718510.png

But the schematic has them listed as 2SC693:

1742149770278.png

I haven't pulled one yet but I don't think there are any markngs on the transistors themselves to give any clue as to which they are. Plus there are no markings on the board for pinout so I will have to be careful to note orientation.
 
C1815 would be the best match but both would be fine. If the device is in a low level amp position such as tone control you could use the higher gain C1845 to boost the signal a tad.
 
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