Zenith-Radio-Corp-L615W 电路原理图.pdf

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1、VOLUME B-25, MOST-OFTEN-NEEDED 1965 RADIO SERVICING INFORMATION ZENITH RADIO CORPORATION MODELS L615G, L &W CHASSIS 6L05 36X FROM 600KCT0 455KC FROM 455 KC TO 400 Xj 35 X - AT 400 h .05 WATT OUTPUT 9X AT 400 .05 WATT OUTPUT V4 I2AV6 DET.AMP. , V5 35C5 PWR.AMR OET / - COIL j t l l “-Till NOTES: ALL V

2、OLTAGES MEASUREO FROM CHASSIS TO POINTS INDICATED WITH A V.T.Y.M. ALL VOLTAGES ARE D.C. UNLESS OTHERWISE SPECIFIED. ALL RESISTORS ARE VA TOLERANCE. 112 WATT CARBON UNLESS OTHERWISE SPECIFIED- ALL CAPACITOR VALUES I* MICROFARADS UNLESS OTHERWISE SPECIFIED. USE ONLY IENITH NON-INDUCTIVE ELECTROLYTIC C

3、ONDENSERS FOR REPLACEMENT. IF ANY OTHER TYPE OF ELECTROLYTIC IS USES, IT WILL BE NECESSAFY TO ADO C9 SHOWN IN DOTTED LINES. |.F. TRANSFORMER NUMBERING STARTS WITH 11 TERMINAL, AS FIRST TERMINAL CLOCKWISE FROM MARKER CODE TERMINAL AS V.IEWED FROM _ BOTTOM OF CHASSIS. I I.F. FREOUENCT HS5 KC. THNING R

4、AN6E S3S KC TO I62C KC- 1 ARROWS OH CONTROLS INDICATE CLOCKWISE ROTATION. _J DENOTES CHASSIS “ L3 OSC COIL SWITCH ON I-1 VOLUME . 35C5 I2DA6 I2BE6 I2DA6 I2AV6 17 PWR.AMR R.F, CONV. I.F. DET.AM - (SHI) 111 o t O 2 or * O o o 3 MARKER CORE A, SPEAKER LEADS - -ClB,ANT. TRIMMER K vCIF, OSC.TRIMMER CIO,

5、DET. TRIMMER FILTER MAGNET7 ANTENNA / L2,DET. COIL (|2BA O - (5) CHASSIS MOUNTING SCREWS L3, OSC. COIL ll0 00 ll iffiw)! (I2BA6) CI3A C13D 40 BO a 150V 150V 1 | -TONE CONTROL -OFF-ON SWITCH ft VOLUME CONTROL 0?. TUBE POSITIONING GUIDE(keywavi Tl . 1st I. F. TRANSFORMERJ A.C.J L4 , PRIMARY BOTTOM- IN

6、TERLOCK L5, SECONDARY TOP- LT2, 2nd I.F. TRANSFORMER -L6, PRIMARY BOTTOM -L7, SECONDARY TOP ALIGNMENT PROCEDURE Operation Connect Oscillator To Dummy Antenna Input Sig. Frequency 0 Converter Grid .5 Mfd. 455 Kc. ii Z M 2 One Turn Loop Coupled 1600 Kc. t- 3 ro g x 3 Loosely to Wove Magnet 1400 Kc. st Dial At Purpose 600 Kc L4, L5, L6, L7 For I.F. Align- ment. 1600 Kc. C1F Set Oscillator to Dial Seal* 1400 Kc. C1D, C1B Align Detector and Antenna Stage 174 收音机爱 好者资料库 RadioFans.CN