{"id":11523,"date":"2014-11-25T15:59:45","date_gmt":"2014-11-25T19:59:45","guid":{"rendered":"http:\/\/swling.com\/blog\/?p=11523"},"modified":"2014-11-26T08:03:23","modified_gmt":"2014-11-26T12:03:23","slug":"a-look-inside-the-radioshack-model-2000669-shortwave-radio","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2014\/11\/a-look-inside-the-radioshack-model-2000669-shortwave-radio\/","title":{"rendered":"A look inside the RadioShack Model 2000669 shortwave radio"},"content":{"rendered":"

\"RS<\/a><\/p>\n

After submitting his mini review of the RS Model 2000669<\/a>, SWLing Post<\/em> reader, Mike, writes:<\/p>\n

Attached [above] is an annotated photo of the RS radio’s PC board.<\/p>\n

As you’ll see, there is a mystery “blob” chip, which probably handles the DSP functions.<\/p>\n

The TDA2922 is an audio amplifier, but I couldn’t find data sheets for the other ICs. Maybe some of your readers can help.<\/p>\n

There is one pad prepared for an additional chip, so additional functions might be possible. By the way, I discovered that if you remove the batteries, the memories and clock have to be reset; which is unfortunate. Overall, for $30, I’m quite happy.<\/p><\/blockquote>\n

Mike, thanks so much for cracking open your brand new radio so that we can take a look inside. The “blob” chip does most likely handle DSP and I bet it’s not a SiLabs chip since (I believe) they are typically labeled. Perhaps readers can chime in with additional information?<\/p>\n

Update:<\/strong> I stand corrected. K.U. comments:<\/p>\n

“The radio has an Si4734:<\/p>\n

Line 1: 3460 = Si4734, firmvare rev. 6.0
\nLine 2: D296 = Revision D die, tracking code 296
\nLine 3: 401 = Last significant digit of the year, workweek
\nReference: https:\/\/www.silabs.com\/Support%20Documents\/TechnicalDocs\/Si4730-31-34-35-D60.pdf<\/a> (See page 37)”<\/p><\/blockquote>\n","protected":false},"excerpt":{"rendered":"

After submitting his mini review of the RS Model 2000669, SWLing Post reader, Mike, writes: Attached [above] is an annotated photo of the RS radio’s PC board. As you’ll see, there is a mystery “blob” chip, which probably handles the DSP functions. The TDA2922 is an audio amplifier, but I couldn’t find data sheets for […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3],"tags":[381,3423,2832],"class_list":["post-11523","post","type-post","status-publish","format-standard","hentry","category-news","tag-radio-shack","tag-radioshack-model-2000669","tag-shortwave-portables"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-2ZR","jetpack-related-posts":[{"id":11468,"url":"https:\/\/swling.com\/blog\/2014\/11\/new-radioshack-portable-amfmsw-radio\/","url_meta":{"origin":11523,"position":0},"title":"New RadioShack portable AM\/FM\/SW radio?","author":"Thomas","date":"November 22, 2014","format":false,"excerpt":"SWLing Post reader, Paul, points out this RadioShack model 2000669 portable radio and asks, \"Is this a new RadioShack shortwave radio?\" Very good question! Though I haven't been inside a RadioShack in a couple of months, I've never noticed this portable on their shelves. In fact, I don't even recognize\u2026","rel":"","context":"In "New Products"","block_context":{"text":"New Products","link":"https:\/\/swling.com\/blog\/category\/new-products\/"},"img":{"alt_text":"RS-ShortwaveRadio","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/11\/RS-ShortwaveRadio.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":11603,"url":"https:\/\/swling.com\/blog\/2014\/12\/mikes-radioshack-model-2000669-modification-to-prevent-station-memory-loss\/","url_meta":{"origin":11523,"position":1},"title":"Mike’s RadioShack Model 2000669 modification to prevent station memory loss","author":"Thomas","date":"December 3, 2014","format":false,"excerpt":"SWLing Post\u00a0contributor, Mike (W5RST), writes: This is a follow-up to my mini-review of the new Radio Shack model 2000669 receiver. Overall, I continue to be quite happy with this receiver, however, I think the loss of memories and time when replacing batteries is annoying. So, I did a simple mod\u2026","rel":"","context":"In "How To"","block_context":{"text":"How To","link":"https:\/\/swling.com\/blog\/category\/how-to\/"},"img":{"alt_text":"RS-ShortwaveRadio","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/11\/RS-ShortwaveRadio-300x300.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":11471,"url":"https:\/\/swling.com\/blog\/2014\/11\/mikes-mini-review-of-the-radioshack-model-2000669-shortwave-radio\/","url_meta":{"origin":11523,"position":2},"title":"Mike’s mini review of the RadioShack Model 2000669 shortwave radio","author":"Thomas","date":"November 23, 2014","format":false,"excerpt":"Regarding the performance of the RadioShack Model\u00a02000669 portable radio, SWLing Post reader, Mike, comments: I picked one up today, and overall, I'm impressed. It does have complete coverage from 2.5 to 26.1 MHz as advertised, and overall, it has very good sensitivity and adjacent channel rejection for a small portable\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"RS-ShortwaveRadio","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/11\/RS-ShortwaveRadio-300x300.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":11411,"url":"https:\/\/swling.com\/blog\/2014\/11\/radioshack-dx-402-sangean-ats-505-31-95-shipped-via-ebay\/","url_meta":{"origin":11523,"position":3},"title":"RadioShack DX-402 (Sangean ATS-505) $31.95 shipped via eBay","author":"Thomas","date":"November 15, 2014","format":false,"excerpt":"\u00a0 eBay seller reforger is selling \"open box\/used\" \u00a0RadioShack model 20-629 (DX-402) portable shortwave radios for $31.95 US including shipping. The RS DX-402\u00a0is essentially a\u00a0rebranded Sangean ATS-505. I purchased a DX-402\u00a0earlier this year and find that its AGC circuit is one of the best found in sub $100 radios. As\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"RadioShack-Shortwave","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2014\/07\/RadioShack-Shortwave.jpg?resize=350%2C200","width":350,"height":200},"classes":[]},{"id":12199,"url":"https:\/\/swling.com\/blog\/2015\/02\/as-radioshack-closes-shop-look-for-deals\/","url_meta":{"origin":11523,"position":4},"title":"As RadioShack closes shop, look for deals","author":"Thomas","date":"February 6, 2015","format":false,"excerpt":"I've received a number of messages and comments regarding close-out and clearance deals at RadioShack retail stores. While this varies by market and the type of store (some are corporate, others are RS franchises), there's no question: now is the time to check for deals. My good friend and SWLing\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"1280px-RadioShack_Exterior_Modified","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/02\/1280px-RadioShack_Exterior_Modified.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/02\/1280px-RadioShack_Exterior_Modified.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2015\/02\/1280px-RadioShack_Exterior_Modified.jpg?resize=525%2C300 1.5x"},"classes":[]},{"id":11128,"url":"https:\/\/swling.com\/blog\/2014\/10\/close-outs-grundig-g2-and-radioshack-digital-recorder\/","url_meta":{"origin":11523,"position":5},"title":"Close outs: Grundig G2 and RadioShack digital recorder","author":"Thomas","date":"October 19, 2014","format":false,"excerpt":"Many thanks to SWLing Post reader, Mike (K8RAT), who notes the\u00a0Grundig G2 is now being sold at close out pricing. Universal Radio is currently selling the G2 for $54.98\u00a0while Amazon has a price of $52.95. I'll be the first to admit that I'm not the biggest fan of the Grundig\u2026","rel":"","context":"In "News"","block_context":{"text":"News","link":"https:\/\/swling.com\/blog\/category\/news\/"},"img":{"alt_text":"GrundigG2Front","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2012\/02\/GrundigG2Front.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2012\/02\/GrundigG2Front.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2012\/02\/GrundigG2Front.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2012\/02\/GrundigG2Front.jpg?resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/11523","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/comments?post=11523"}],"version-history":[{"count":0,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/posts\/11523\/revisions"}],"wp:attachment":[{"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/media?parent=11523"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/categories?post=11523"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/swling.com\/blog\/wp-json\/wp\/v2\/tags?post=11523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}