Zenith-Radio-Corp-8LT45Z1 电路原理图.pdf

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1、VOLUME R-25, MOST-OFTEN-NEEDED 1965 RADIO SERVICING INFORMATION ZENITH RADIO CHASSIS 8LT45Z1 Chassis =_4 |! _8LT45Z1 is practically the same, but -H* sI _-y * uses some different transistors. * , : (Continued on the next page, at right) S o ; vlo _ 0 with ouwt * THE MATCHIN6 IDENTIFICATION WILL BE A

2、 COLORED 收音机爱 好者资料库 RadioFans.CN vw 700 121-247 DRIVER *lM234 IXER J 45 SPEAKER Supplier Texas Instrument 8LT45L1 Amperex VOLUME R-25, MOST-OFTEN-NEEDED 1965 RADIO SERVICING INFORMATION ZENITH RADIO Chassis 8LT45Z1, 8LT45Z3, Model Royal 500L (Continued from preceding page, at left) VOLUMEW CONTROL Q

3、j fix y &1 T1- 95-2125 1st I.F. T4 95-2043 DRIVER 121-243 *121-236 OSC. 2 105-59 INTEGNET _-T5 95-2055 OSC. TRAN FORMER 121-244 -*121234 R.F. -U 1 105-75 NTEGNET -U 4 105-55 INTEGNET T3 95-2127 3rd I.F. TRANSFORMER 121-248 MATCHED OUTPUT PAIR _r I DPST P SWITCH ON VOLUME CONTROL mmm 3.0V L U 3 105-7

4、6 INTEGNET 121-242 *121-235 1st I F. LEGEND B-8A5E C-COLLECTOR E-EMITTER T2 95-2126 2nd I.F. TRANSFORMER INDICATES PARTS USED ON 8LT45Z1 HASSIS ONLY IX UB 121-243 lOSB *121-236 INTI 2nd CHASSIS, WIRING AND COMPONENTS VIEWED FROM WIRING SIDE CHASSIS INFORMATION CHART Part No. R. F. Mixer Osc. 1st I.F

5、. 2nd I.F. Crystal Diode Detector Driver Output Zenith Type E.I.A. 121-234 PNP GC282 121-234 PNP GC282 121-236 PNP GC284 121-235 PNP GC284 121-236 PNP GC284 103-19 or 103-44 121-247 NPN GC608 121-248 Mat hed Pair NPN NPN GC609 Zenith Type E.I.A. 121-244 PNP 2N993 121-244 PNP 2N993 121-243 PNP 2N993 121-242 PNP 2N993 121-243 PNP 2N993 Same as Above Same as Above Same as Above 183 收音机爱 好者资料库 RadioFans.CN