In my schematics and service manual:
F1 - European model T 0.5 A/250 V, USA, Canadian, Japanese 0.5 A (without type, but probably F = Fast)
F2 - 2 A (without type, probably F)
F3, F4 - 0.75 A (without type, probably F)
Parts list shows also these fuses without details where they should be: 0.7 A for Japanese model, and T 250 mA for German model with Serial Numbers less than 2478, T 500 mA for German model with Serial Numbers more than 3311… There are also mentioned fuses T 800 mA and T 2A.
It seems to me strange that for different primary voltage there’s the same fuse value. It should be different for 100/120 or 220/240 Volt.
Daniel Forró
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On Nov 7, 2023, at 18:22, Florian Anwander <fanwander@...> wrote:
Hello Valeri
The brand of the fuse does not matter. Any fuse with the same values and measures will do it.
And btw: the DX7 does not use a 5A fuse. The service manual says:
0.5A for the fuse on the primary side of the transformer
on the secondary side of the transformer:
0.75A for the two 15V lines
2A for the 5V line.
Best regards
Florian
Am 07.11.23 um 03:43 schrieb googdyamaha:
HI GUYS.
Finding Glass Fuse Substitutes，(Do you know what brand of fuse this triangle symbol is?)
Sorry for the poor English.
FKD 250V 0.5A and FKD 250V 5A, 6＊30mm
<PXL_20231107_005755721~2.jpg><PXL_20231107_024057678~2.jpg>
