Serious servo jitter
#1
Senior Member
Thread Starter
My Feedback: (79)
Join Date: Jan 2002
Location: Sturgeon Bay,
WI
Posts: 260
Likes: 0
Received 0 Likes
on
0 Posts
Serious servo jitter
I recently purchased 4 NEW 527's (JR) as part of a flight pack. I had intended to use them on a Hobbico Spectrum I am now putting together (what a nightmare). I had already installed 517's in the wing and wanted to test the throws. After hooking up the switch and battery I tested the 517's and everything worked perfectly, smooth as silk. Wanting to use the 527's on other functions, I hooked them up to the receiver and all went absolutely nuts. am overlooking something or did I get hosed on the purchase? I tried changing switch harness..same thing. I even hooked the battery direct to the receiver and you guessed it, same thing. I even tried using batteries in different states of charge, Nicads and Nimh made no difference. Help!
#3
Senior Member
Thread Starter
My Feedback: (79)
Join Date: Jan 2002
Location: Sturgeon Bay,
WI
Posts: 260
Likes: 0
Received 0 Likes
on
0 Posts
Serious servo jitter
I should have been a little clearer on my description of going "nuts", my fault. The servo arms were jittering back and forth and it sounded intermitant. I would say they were moving back and forth about a quarter of an inch, not just a little jump. When I initially plugged them into the receiver, they were calm as can be, once the transmitter was turned on, it was jitter city. I initially though it was the transmitter, but the 517's worked like I said, "as smooth as silk". Just to let you know, it was a new Hitec receiver and a new crystal. The readout on the transmitter read 10.0 volts, but it is a JR 622, which is an older radio. The radio still has the original battery in it although it was never used. The radio was charged on the Accu-cycler and appeared to hold a good charge.
#5
Senior Member
Thread Starter
My Feedback: (79)
Join Date: Jan 2002
Location: Sturgeon Bay,
WI
Posts: 260
Likes: 0
Received 0 Likes
on
0 Posts
Serious servo jitter
The radio was purchased here on RCU, it was NIB but the guy who had it wanted to keep the receiver and servos. He did substitute a off brand receiver (junk) which was immdeiately discarded. Being as I needed a receiver I ordered a new Hitec Supreme and the appoppriate crystal. It seems a little odd that the 517's work perfectly and the 527's jump around. Other than sending the radio and receiver in for a check up/tune up, I've tried pretty much everything I can think of.