Nigel Goodwin's Website
Welcome to my Pace satellite technical pages, the information presented here comes from a mixture of Pace technical bulletins and personal experience. Whilst the information presented is accurate to the best of my knowledge, no guarantee of it's accuracy is given or implied.
Pace MSS200/300 series power supply circuit.
View in Browser - MSS200/300 PSU circuit diagram (78Kb).
Download Zip file - MSS200/300 PSU circuit diagram (79Kb).
Pace MSS500/1000 series power supply circuit.
As the PSU circuit for the 500/1000 is rather large, I've split it into two separate sections - the primary and secondary sides of the mains transformer.
View in Browser - MSS500/1000 PSU primary circuit (76Kb).
View in Browser - MSS500/1000 PSU secondary circuit (97Kb).
Download Zip file - MSS500/1000 PSU (175Kb).
Pace PRD series power supply problems.
View in Browser - PRD800/900 PSU circuit diagram (57Kb).
Download Zip file - PRD800/900 PSU circuit diagram (57Kb).
Pace PRD800/900 Upgrade Details
Pace PRD series ADX switching.
Pace SS series power supply problems.
View in Browser - SS9000/9200 PSU circuit diagram (70Kb).
Download Zip file - SS9000/9200 PSU circuit diagram (70Kb).
Pace SS series ADX switching.
Pace SS series decoder reset mod.
Pace PRD series 22KHz switching.
Pace faults list.
Pace resets procedures.
How to get in touch with Pace.
Grundig GRD200/280/300 PSU circuit.
The power supplies in these receivers have been exceptionally reliable, probably due to the small number of electrolytics in the primary side! - only two, including the reservoir capacitor. Anyway, In case someone may find it helpful, here's the circuit.
View in Browser - GRD PSU circuit (55Kb).
Download Zip file - GRD PSU circuit (55Kb).
The GRD280 & GRD300 have a fully adjustable RF modulator, similar to the later Pace receivers, and also have the advantage that they can be set to work as either Pal-I or Pal-G. The modulator channel setting is explained in the instructions (I've included details on my Service Menu page as well), but the sound inter-carrier setting can only be changed via the secret service menu.
WARNING!!. Do not alter the service menu settings at random, according to Grundig Technical, damage can be caused by such tampering. ALWAYS write down the original settings, so you may? be able to restore them afterwards. The following link gives the PIN number for access to the service menu, AND a list of original settings for the GRD300.
Default PIN numbers for GRD300.
Amstrad SRD510 PSU circuit.
I've included two diagrams here, the first one is the main PSU circuit, and the second is the switch-mode circuit for the LNB polarity switching.
View in Browser - SRD510 main PSU circuit (79Kb).
View in Browser - SRD510 LNB PSU circuit (43Kb).
Download Zip file - SRD510 PSU circuit (122Kb).
Other useful sites.
Pickering has a site of particular interest to anyone with satellite problems, as well as
technical advice he supplies spare parts and accepts receivers for repair by post. Whereas
I repair various electronic items, Martin specializes in satellite receivers, and as such
has vast experience in their repair.
Willowvale Electronics stock a huge range of spares for many manufacturers, they have a website which can be searched by model number, it can be accessed without a password, and retail prices are given Link to WVE.
CPC Ltd. also stock a huge range, their site is also searching Link to CPC.
most popular parts are also available from SEME Ltd, 01664-481818, they also have a web
site that will allow you to search their spares database to see what is available -
however to see the prices you need to have an account and password .
Alex Brett's Digital Website which is a website on both OnDigital and Sky Digital.