Author Topic: HP3478A Hi-Res Schematic  (Read 949 times)

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Offline MitiTopic starter

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HP3478A Hi-Res Schematic
« on: January 04, 2023, 08:35:00 pm »
Do you have a high resolution schematic of the HP3478A, particularly around U512? In the service manual that I have I cannot see clearly pins 16, 18, 19.

Cheers,
Miti
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Offline gyachts

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Re: HP3478A Hi-Res Schematic
« Reply #1 on: January 04, 2023, 08:45:45 pm »
This is the best scan I have, hope it helps.

Greg
 

Offline TheDefpom

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Re: HP3478A Hi-Res Schematic
« Reply #2 on: January 04, 2023, 08:47:04 pm »
Does this help?
Cheers Scott

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Offline MitiTopic starter

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Re: HP3478A Hi-Res Schematic
« Reply #3 on: January 04, 2023, 09:26:57 pm »
This is the best scan I have, hope it helps.

Greg

Is not very clear which is pin 18 and which is 19.
Thanks
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Offline MitiTopic starter

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Re: HP3478A Hi-Res Schematic
« Reply #4 on: January 04, 2023, 09:28:37 pm »
Does this help?

This helps, thanks. OD is pin 18 and CE1 is pin 19.

Miti
Fear does not stop death, it stops life.
 


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