Re: HP 1955 Monitor Repair Guide
Hi all,
I would just like to double check with someone on this forum regarding the signaling transistors (3904 and 3906) exactly which ones are the npn and pnp...I'm getting confused trying to measure in circuit as I have so many things blown. I've uploaded a copy of Krankshaft's picture (I hope that's okay) as a reference to the devices. I think the Q811 is the npn and the Q810 is the pnp (as pictured), but I can't figure out Q802 and Q803 (upper left side of the picture) as they are both damaged on my board....Can anyone help?
Thanks in advance
Hi all,
I would just like to double check with someone on this forum regarding the signaling transistors (3904 and 3906) exactly which ones are the npn and pnp...I'm getting confused trying to measure in circuit as I have so many things blown. I've uploaded a copy of Krankshaft's picture (I hope that's okay) as a reference to the devices. I think the Q811 is the npn and the Q810 is the pnp (as pictured), but I can't figure out Q802 and Q803 (upper left side of the picture) as they are both damaged on my board....Can anyone help?
Thanks in advance
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