philmurray - 2009-07-27 23:26
Hey does anyone have a user manual for this, trying to remember how to charge the battery
I looked on the Sony eSupport site-it does not have a manual for the D-88.
thanx. ive got the service manual but really was interested in getting the instruction manual as well
JohnEdward
I just bought one of these on ebay, but it came without the 9V DC Power Adapter...can you give me some information on the model that it uses?
Many thanks!
for mains 220V use Sony AC-930A, 110 i don't have the slightest idea...
I've also got a D-88 with a dead BP-02 battery.
I've found that the Walkman's that used Lead Acid type batteries (similar to automotive car batteries) cannot be revived if left unused for a long time. NiCd batteries seem to survive long storage a lot better.
As Lead Acid batteries are 2v per cell, compared to 1.2v per cell for NiCd / NiHM, I though of using a custom installed LiPo battery for the D-88 as they are 3.7v per cell and it's easy to get a LiPo that size with at least 500mAh. The only hassle is you won't be able to use the Sony 9v power supply to charge it. I've got the correct charger, the type r/c hobbyists use.
Anyhow, Food for thought. I'll send pictures when I get it's done.
Greg
WOW ! with that you gonna make some folks here lank happy !
i do have an a.k.a. of the D-88 from CROWN, couldn't test it yet because it only works with the battery...
Hi Roly, here is info off of the 9V original AC power adapter came with my NIB D-88.
Top says
Sony Automatic Voltage Select 9V 600mA
shows tip ( inside center ) to be NEGATIVE
Outside Positive
Backside ( mine is US power plug)
Sony AC-950W 9V
Input : AC 110V-240V ~ 50/60 Hz 9W
Output : DC 9V 600mA
NO. 887 Made in Japan
Hope this helps out
on Partstore.com shows not available but here is all models that use same ac adapter.
Sony D-180K
Sony D-40
Sony DT3
Sony CFS-902
Sony D-2
Sony D-50MK-II
Sony DT30
Sony CFS-903
Sony D-20
Sony D-55
Sony DT-4
Sony CFS-920
Sony D-25
Sony D-555
Sony D-T40
Sony CF-S930
Sony D250
Sony D-7
Sony ICF-6500W
Sony CFS-EW60
Sony D35
Sony D-800K
Sony M-2000
Sony D11
Sony D350
Sony D-88
Sony M-2020
Sony D-15
Sony D-4
[quote][/quote]
many thanks John...much appreciated!
Ok, so I finally got round to replacing the battery in the Sony D-88 with a custom LiPo Pack.
The LiPo battery I used is from Flight Power (they make radio control batteries in various sizes) and has 3 x 3.7v/300mAh cells in parallel giving it a total capacity of 3.7v/900mAh. The original battery is a Lead Acid 4.0v/500mAh so the LiPo battery should have almost twice the play back time.
I put a connector inline so that I can disconnect and charge the LiPo battery with an external r/c charger. The charging characteristic of the original Lead Acid versus LiPo are way different so it isn't possible to charge the LiPo while connected to the Sony power adaptor.
Have a look at the picture. I gave it a test run and it works perfectly. By the way, I wouldn't recommend this to anyone who doesn't know a bit about electronics or using a soldering iron 8-|.
quote:
Originally posted by gregorybotha:
Ok, so I finally got round to replacing the battery in the Sony D-88 with a custom LiPo Pack.
The LiPo battery I used is from Flight Power (they make radio control batteries in various sizes) and has 3 x 3.7v/300mAh cells in parallel giving it a total capacity of 3.7v/900mAh. The original battery is a Lead Acid 4.0v/500mAh so the LiPo battery should have almost twice the play back time.
I put a connector inline so that I can disconnect and charge the LiPo battery with an external r/c charger. The charging characteristic of the original Lead Acid versus LiPo are way different so it isn't possible to charge the LiPo while connected to the Sony power adaptor.
Have a look at the picture. I gave it a test run and it works perfectly. By the way, I wouldn't recommend this to anyone who doesn't know a bit about electronics or using a soldering iron 8-|.
You can find Lead Acid 4.0v/500mAh battery, phones like AT&T. SONY, UNIDEN, use the 4.0v battery. I order the battery and hack it this way, then you can charge it thu the unit, it has the same charging characteristic. Don't like using Lithium Polymer if you charge it to fast or overcharge them they could caught fire, or overheat. Still nice work look perfect
Thanks guys! I can finally carry my D88 outdoors I guess :-)
this is no joke and should be taken seriously. i had an old mid 1980's sears roebuck cassette player that took 3 AA battteries. i got it running well and cleaned it up and replaced the belt. it was working fine till the motor started to seize up. i shut it off i thought and went outside for 20-30 minutes. when i came back in the whole back of the player was melted and the batteries were incredibly hot. i don't know what happened or what could of happened had i been gone longer. the cover to the battery box was totally gone along with the area around it. i took a screw driver and pried out the 3 batteries and let it all set until they were cool enough to handle. i am sure i thought i had clicked off before i left and somehow it really wasn't off or whatever. i have never had anything like that happen before and don't know what caused it. anyway,, now if i am not very familiar with a player i pull the batteries before leaving it alone or i am finished with playing music on it. does anybody what a clue to what caused the heat to back-up into the batteries.
quote:
Originally posted by rerooted:
this is no joke and should be taken seriously. i had an old mid 1980's sears roebuck cassette player that took 3 AA battteries. i got it running well and cleaned it up and replaced the belt. it was working fine till the motor started to seize up. i shut it off i thought and went outside for 20-30 minutes. when i came back in the whole back of the player was melted and the batteries were incredibly hot. i don't know what happened or what could of happened had i been gone longer. the cover to the battery box was totally gone along with the area around it. i took a screw driver and pried out the 3 batteries and let it all set until they were cool enough to handle. i am sure i thought i had clicked off before i left and somehow it really wasn't off or whatever. i have never had anything like that happen before and don't know what caused it. anyway,, now if i am not very familiar with a player i pull the batteries before leaving it alone or i am finished with playing music on it. does anybody what a clue to what caused the heat to back-up into the batteries.
well this should be in another thread by itself - but, without being too technical, some cheepy players have the battery plus or minus wired directly to one end of the cassette motor, if yours seized = Shorted - then the batteries had no-where to go but round n round with it's current [ I have had some flashLights do this very same thing - and melted ] You Simply had a short through you Motor and the current - amperage = electrical power - via the batteries - went round-n-round an such - nice to know that you were monitoring this...
your right,,luckily only lost a cheepo player. it could have been much worse. i have a sony wm-af605 here which i'm not having any luck with. anyway,,if i recall the motor wires are by themselves and are soldered directly to the pcb. i can't get anything out of it and was thinking somebody reversed the wires when they attempted a fix. there work was really sloppy. anyway is that what you mean as far as wiring directly from the battery to the motor. i don't know alot about the electronics of the cassettes but i get what you mean. it's really very dangerous and all one would get is an extreme heat build up. by the way,, thanks alot for your input.
