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Creative CT1975-SAM pinout or equivalent?

No info found on these 11 pin audio output devices except "Creative used these amplifiers in the previous generation speaker systems, like FPS-1000 and FPS-1500."

Here used on one channel in a 2001 Cambridge soundworks desktop theater DTT2200, other numbers on the chassis EAX CSW 4300

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N_Cook
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systems,

looks like failure in data-known ICs TDA7372 or M51132, not CT1975 For 2 known good CT1975 , DC V, no load pins 1 to 11

0.8(ch2 in), *, 0,8,0.8(ch1 in),0(gnd),8,8(op1),16 (sup), 8(op2),12.3

  • is 2 V on one used as 2 separate channels and varies (no pcb connection to that pin) 0 to 0.6V floating presumably, on one probably set in bridge configuration driving the sub-woofer.

Anyone have a more complete pinout/full data, JIC ?

-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on

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Reply to
N_Cook

on

pin11 is standby pin3 connected to ground

any guesses on the next 2 p7 in normal amp 100uF cap to ground subwoofer amp 220nF to ground

p2 on the CT1975 where there is a connection to p2

100K to ground and also to the base of a TO92 via an r,

-- Diverse Devices, Southampton, England electronic hints and repair briefs , schematics/manuals list on

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Reply to
N_Cook

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