FYI, Installed a STK392-570 in place of the -560 in the Sony RA6 chassis after verifying that the circuits using the two are nearly identical and the pins are the same. The -570 is used in the Mitsubishi V18 chassis. Found that the performance was identical and the temperature was identical, other than one chip runs hotter because the channels are not balanced. One chip has 2 vertical and one horizontal channels and one has 2 h and 1 v channel. I swapped the two versions and the performance was the same in the other position, i.e. the temperature difference is due to the location, not the version of the chip. I then replaced the remaining -560 with another -570 that I had in stock and it blew fuses. The second -570 was a TT-STK392-570 from Tritronics which had no date code on it. Recall the email from B&D regarding bad chips with no date code. The one that I used first was from Mitsubishi and was date coded and worked fine, with very little variation in output compared to the Sony part. I found a distributor that claims to be Sanyo authorized with the following info: http://beomil.com/datasheet/INTEGRATED/Video.htm STK392-560 max = 5.0A, fH max=33.75kHz V +/-35,+/-24 STK392-570 max = 8.0A, fH max=100kHz V +/-40,+/-24 The Mitsubishi V18 chassis that uses the -570 runs with a higher +/- supplies than the Sony circuit. The Sony circuit uses more resistive loading on the outputs, however. The chips in the Sony set run at 60-65 degrees C. We'll see how these work in this set and likely only stock the -570, because of the higher ratings for max current, bandwidth, and supply range. I now think I understand now why the Mitsubishi sets usually fail on the vertical channels. The vertical channels are in one chip and the horizontal in the other. The vertical is corrected with waveforms at the horizontal rate and vice versa. The higher frequency correction likely causes them to run hotter. Leonard Caillouet Electronics World 1261 NW 76 Blvd Gainesville, FL 32606 352-332-5608 352-332-5668 fax ----- Original Message ----- From: <sales@xxxxxxxxxxxxxx> To: <lcaillo@xxxxxxxxxxxx> Sent: Wednesday, October 19, 2005 3:18 PM Subject: Your ACME Enterprises order > Thank you for your order! > > We will send you a detailed confirmation as soon as your order ships. > > The shipping charges shown below apply for USPS Priority Mail > (in the USA) and Global Priority Mail/Airmail Letter Post (outside the > USA) > > If your order includes woofers or aerosol products, or if you > selected an alternate method of shipment when you placed your > order, additional charges will apply. > > If you chose PayPal(tm) as your method of payment, we will send you > a PayPal invoice within 24 hours. > > If you have any questions regarding this order, please contact us by email > or phone. > > Thanks again! > > Glen Goodwin > ACME Enterprises of Orlando > http://www.acme-sales.net > 1-800-575-9833 (toll-free) > 1-407-296-2333 > > Order Date: Wednesday, October 19, 2005 at 14:18:11 > --PRODUCT INFORMATION-- > > Quantity: 3 > Product: PICO-2.0 ($ 0.59 ea.) > Item Total: $ 1.77 > > Quantity: 3 > Product: PICO-3.0 ($ 0.59 ea.) > Item Total: $ 1.77 > > Quantity: 3 > Product: PICO-5.0 ($ 0.59 ea.) > Item Total: $ 1.77 > > Quantity: 2 > Product: STK392-570 ($ 12.99 ea.) > Item Total: $ 25.98 > > Quantity: 2 > Product: ACME-461 Freeze Mist 10 oz. ($ 5.79 ea.) > Item Total: $ 11.58 > > Quantity: 1 > Product: ACME-454 Solder flux 2 oz. ($ 6.99 ea.) > Item Total: $ 6.99 > > Quantity: 2 > Product: 2SB709 ($ 0.20 ea.) > Item Total: $ 0.40 > > > ORDER #: 1129749453 > SUBTOTAL: $ 50.26 > TOTAL: 50.26 > > ORDER NOTES ------------------- > > > > > > > -- > No virus found in this incoming message. > Checked by AVG Anti-Virus. > Version: 7.0.344 / Virus Database: 267.12.2/140 - Release Date: 10/18/2005 > > ----------------------------------------------------------------------------- This Email List is accessible to the general public through search engines. Remove: http://www.tech-assist.org/remove.htm Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/