I have been trying to source a replacement toroidal transformer for a spare DAC board resurrection. This is for an MHDT Pagoda Balanced DAC.
There are three connectors, which appears to not be typical. I have not been able to find any similar configurations. I also do not have the voltage requirements. The manufacturer is not interested in facilitating my request.
Specifications for the DAC:
Digital Receiver CS8416
D/A converter PCM1704
Frequency response: 20 Hz to 20 kHz (± 2dB) Output impedance: 32 ohms
Output level: 3.0 Vrms
USB input 16, 24 bits 44.1 kHz or 48 kHz, 88.2kHz, 96kHz, 176.4kHz and 192 kHz; drivers required
USB inputs are all in asynchronous operation.
All other inputs (SPDIF) 16, 24 bits 32 kHz up to 192 kHz.
Mains voltage can be adjusted as 220-240VAC or 100-120 VAC (50/60Hz)
Would appreciate any input on how to source a replacement.
There are three connectors, which appears to not be typical. I have not been able to find any similar configurations. I also do not have the voltage requirements. The manufacturer is not interested in facilitating my request.
Specifications for the DAC:
Digital Receiver CS8416
D/A converter PCM1704
Frequency response: 20 Hz to 20 kHz (± 2dB) Output impedance: 32 ohms
Output level: 3.0 Vrms
USB input 16, 24 bits 44.1 kHz or 48 kHz, 88.2kHz, 96kHz, 176.4kHz and 192 kHz; drivers required
USB inputs are all in asynchronous operation.
All other inputs (SPDIF) 16, 24 bits 32 kHz up to 192 kHz.
Mains voltage can be adjusted as 220-240VAC or 100-120 VAC (50/60Hz)
Would appreciate any input on how to source a replacement.
Attachments
The transformer appears to have a dual primary (2 reds and 2 blacks) to allow operation on 120V or 240V. Unit likely has a switch for selecting mains voltage.
Transformer appears to have two separate center-tapped secondaries: 2 greens and a black, and 2 yellows and a black. The black wire being the center-tap for each.
Are you able to measure the output voltages of the original transformer? Measure AC volts green-to-green, and AC volts yellow-to-yellow. If not, it will be impossible to select a transformer without this basic information. As far as wattage/amperage is concerned, you can be guided by the physical size of the toroid.
Transformer appears to have two separate center-tapped secondaries: 2 greens and a black, and 2 yellows and a black. The black wire being the center-tap for each.
Are you able to measure the output voltages of the original transformer? Measure AC volts green-to-green, and AC volts yellow-to-yellow. If not, it will be impossible to select a transformer without this basic information. As far as wattage/amperage is concerned, you can be guided by the physical size of the toroid.
Thanks for the information.
I do not have the original transformer. It was installed onto a replacement board and sold with the DAC. I’m trying to see if I can restore this partially non-functioning board.
I found this info for the toroidal transformers for other models by the same manufacturer:
Havana:
I/P:0-115V 0-115V 50/60Hz
O/P:15V-0-15V 0.3A (-15A -- 0 0.3A, 0 -- +15V 0.3A)
8V-0-8V 0.8A (-8V -- 0 0.8A, 0 -- +8A 0.8A)
Upgraded Atlantis spec:
I do not have the original transformer. It was installed onto a replacement board and sold with the DAC. I’m trying to see if I can restore this partially non-functioning board.
I found this info for the toroidal transformers for other models by the same manufacturer:
Havana:
I/P:0-115V 0-115V 50/60Hz
O/P:15V-0-15V 0.3A (-15A -- 0 0.3A, 0 -- +15V 0.3A)
8V-0-8V 0.8A (-8V -- 0 0.8A, 0 -- +8A 0.8A)
Upgraded Atlantis spec:
- 53VA
- I/P:0-115V 0-115V 50/60Hz
- O/P:15V-0-15V 0.7A
- 8V-0-8V 2.0A
I forgot to add- the board I have is the only balanced version and therefore the most power demanding. Would be fine with over- sizing if I know what the general maximum specifications should be.
The other problem is finding a transformer with the same (3) connector layout.
The other problem is finding a transformer with the same (3) connector layout.
