Is it possible to change voltage input from 110VAC to 220VAC on Denon DCD-1500 ?

liemjerry

liemjerry

Well-Known Member
Hello

I have a CD Player Denon DCD-1500, originally used 110VAC voltage, can I change it to 220VAC voltage?
Does the manufacturer provide the option of changing the input voltage from 110VAC to 220VAC by changing the position of the input AC voltage cable in the transformer?

thank you
 
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According to the service manual, the US models (-EG, -EU) had a fixed voltage transformer, for 120V. The PCB assembly is KU-5782.

There was a multiple voltage model (-EI, or E1), assembly KU-5783, that offered 120/220/240V selection.
 
Last edited:
cpt_paranoia said:
According to the service manual, the US models (-EC, -EU) had a fixed voltage transformer, for 120V. The PCB assembly is KU-5782.

There was a multiple voltage model (-EI, or E1), assembly KU-5783, that offered 120/220/240V selection.
Click to expand...

ok I'll check the service manual first, thanks
 
I imagine it's a suffix to the part number, so something like DCD-1500-E1, probably on the rear panel. Alternatively, just flip the lid off, and check the PSU assembly; look for the selector mechanism or the assembly number. Voltage select mechanisms are often externally accessible. Not sure how it's done for this device.

I see the DCD-1500 name was re-used with an 'AE' suffix, and is a completely different device. There was also the DCD-1500II...
 
Actually, looking a bit closer at the service manual, it looks like they may have used a single transformer design, with PCB jumper options to set the input voltage, as well as the multi-voltage version.

The board layouts suggest there are five pin positions on the primary side:

pin 2 is the common (to F1/J501 and power switch)
pin 5 is for 120V
pin 7 is for 220V
pin 6 is for 240V

E2: 220V, J506 (pin 7) select, F1 T160mA fuse inline, F2 & F3 T500mA in outputs
EU, EG: 120V, J504 (pin 5) select, J501 inline, J502 & J503 outputs
EA: 120V, J504 (pin 5)select, F1 T160mA fuse inline, J502 & J503 outputs
EK: 240V, J505 (pin 6) select, F1 T160mA fuse inline, F2 & F3 T500mA in outputs

If you have a 120V part, it will be the EG or EU version, which has J504 fitted to select the voltage, and J501 fitted in place of an inline fuse, or the -EA version, which has F1 fitted instead of J501.
The 220V version was -E2, which had J506 fitted, and an inline fuse F1 (T160mA) in place of J501.

So, you would remove J504 and insert J506.
If you have the EG or EU version with J501, I'd suggest removing J501 and fitting the F1 fuse, to meet the E2 specification. F2 and F3 are probably optional fittings, as they're DC side; I'd fit them, replacing J502/J503.

Hmm... the board layout disagrees with the schematic: schematic says pin 6 220V, pin 7 240V (which would be more logical...). And it refers to the output fuses as F2 & F4... If you connect 220V to a 240V tap, you'll be safe, but won't get the o/p voltages you expect. I'd measure in both positions, and pick the one that gives the slightly higher voltage. I suspect the board layout is correct.

You will have to check that C522 & C521, 0.01uF (10nF), fitted across L/N input, and the inline choke, are sufficiently rated for 220V supply. In that line-to-line application, it will need to be an X2 rated capacitor:

https://www.allaboutcircuits.com/technical-articles/safety-capacitor-class-x-and-class-y-capacitors/
 
the following are photos of the power supply and transformer parts, PCB power supply. I see on the PCB there are empty pins for 240VAC, 220VAC, but they are not used. But in the transformer section I see the specifications are 100VAC
Do I have to replace the transformer or just move the jumper cables?

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