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Service Data for Philips K35

Service Data

Last Post by sideband 4 years ago

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crustytv

(@crustytv)

Posts: 12121

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A rare request from myself. Looking for the K35 Service manual or at the very least to start with, just the decoder Module Circuit. Typically, I have many Philips manufacturers manuals, everything but that. Checked my red books, but I have a 5-year gap after 82/83 they pick up again in 1989 onwards. Sods law the cct must in that missing window. Can anyone help?

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Posted : 23/02/2021 11:26 pm

sideband

(@sideband)

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@crustytv

Not sure if it's of any help.....manufacturing dates of Philips have become somewhat hazy since I left there 13 years ago....The K30 MkII with teletext will use pretty much the same decoder. There are a lot of similarities between the K30 MkII and K35. The main difference between the two was RGB interfacing. Easy to tell K30 MkI from MkII, the MkI had a two-chip chroma decoder. The MkII had a single chip decoder but also an interface chip for RGB switching which was also used for switching the teletext. The MkI and MkII boards are not interchangeable. If I remember correctly MkI did not have teletext.

Not a lot to go wrong...the early ones had a socketed decoder chip and the socket used to give problems with odd artefacts on the screen....just solder the chip in directly for a complete cure.

Posted : 24/02/2021 8:42 am

crustytv

(@crustytv)

Posts: 12121

Vrat Founder Admin

Topic starter

Also K30 used 25xx series chips, whereas the K35 used 35xx series. I need the data to pass to John to help us figure out interfacing it to my Franken-G6-IF/Decoder board.

No picture of the K30 MKI decoder, but here is the RGB module.

Below K30, MKII Decoder

Below K35, Decoder (data required for this)

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Posted : 24/02/2021 8:57 am

crustytv

(@crustytv)

Posts: 12121

Vrat Founder Admin

Topic starter

The Philips K35 manual now resides in the data library.

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Posted : 24/02/2021 10:24 am

sideband

(@sideband)

Posts: 4235

Famed Member Moderator

K30MkII used a single chip decoder. The teletext version had an extra chip for RGB/Video switching. I'm pretty sure the MkII and K35 decoders were plug-in compatible.