Stromberg-Carlson-Co-1110 电路原理图.pdf

《Stromberg-Carlson-Co-1110 电路原理图.pdf》由会员分享，可在线阅读，更多相关《Stromberg-Carlson-Co-1110 电路原理图.pdf（6页珍藏版）》请在收音机爱好者资料库上搜索。

1、收音机爱 好者资料库 RadioFans.CN MANUAL or 1947 MOST-OFTEN-NEEDED RADIO DIAGRAMS STROMBERG-CARLSON CO. Model 1110 * Series 10 ALIGNING Never recrf/gn unless rduolutely necessary. Use a good signal generator modulated at 400 or 1,000 cycles, with variable output voltage and a sensi tive output meter across th

2、e voice coil of the speaker. Always align using the lowest possible input from the sig nal generator. A strong signal mokes adjustments ap proximate. Always hove the volume control full on.” Aligning Procedure (follow this order exactly) Intermediate Frequency Adjustments. 1. Set range switch to Sta

3、ndard Broadcast Position. 2. Tune set to extreme high frequency end of dial. 3. Connect the ground terminal of the signal generator to the ground terminal of the chassis. 4. Introduce a modulated signal of 455 KC. to the grid of the 6SA7 Converter tube (middle section of gang condenser) using a 0.1

4、mfd. capacitor in series with the output lead of the signal generator. 5. Adjust the I.F. aligners for maximum output in the following order: a. Secondary af second I.F. transformer. b. Primary of second I.F. transformer, c Secondary of first I.F. transformer, d. Primary of first I.F. transformer. D

5、ial Pointer Adjustment With plates of the gang tuning capacitor fully engaged make certain that the dial pointer is in a horizontal position directly on the calibration marks located at the low frequency end of dial scale. Adjust the dial pointer if necessary. Radio Frequency Adjustments Standard Br

6、oadcast Range. Antenna must remain connected for R.F. adiust- ments. 1. With the signal generator output lead connected to the Antenna and Ground terminal of the receiver, tune the signal generator frequency and receiver tuning dial to 1400 KC. 2. Adjust the oscillator, R.F. and antenna trimmers of

7、the gang condenser for maximum signal. 3. Set the signal generator frequency and receiver tun ing dial to 600 KC. 4. Adjust the 600 KC. padding condenser in oscillator coil shield for maximum signal. 5. Adjust the iron core in antenna transformer for maxi mum output. (Underside of chassis) 6. Repeat

8、 the above procedure until no further change is required. Radio Frequency Adjustments Short Wave Range 1. Set the range switch to Short Wave position. 2. Set the signal generator frequency and receiver tun ing dial to 14 MC. 3. Connect the output of the signal generator to the antenna terminal on the chassis. 4. Adjust the oscillator, R.F, and antenna trimmers for maximum output. 5. Repeat the above procedure until no further change is required. DIAL CORDING DIAGRAM - 157 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN