Galvin-Mfg-Co（Motorola）-PT81A 电路原理图.pdf

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1、VOLUME R-25, MOST-OFTEN-NEEDED 1965 RADIO SERVICING INFORMATION MODELS PP80A,PT81A CHASSIS HS-1269 VIA 1/2 1ZAX7A LEFT CHAN VOLTAGE AMP C5 .05 V2 50HN5 LEFT CHAN POWER AMP Rll R12 330K STEREO x-EZ CARTRIDGE RECORD CHANGER WIRING ! PHONO MOTOR nWH O 0N-0FF- REJ V1B 1/2 12AX7A RIGHT CHAN VOLTAGE AMP V

2、3 50HN5 RIGHT CHAN POWER AMP I ,ral all others In MMF. VOLTAGES: Measured from point Indicated to B- with a VTVM. +10%. No signal In. i Rtt + C11B_ 100MF + 3.9K + &IC 50MF PT81ASPKR WIRING 8- 4r= CHASSIS nil RECORD CHANGER FRAME V3 50HN5 RIGHT CHAN POWER AMP VI 12AX7A LEFT & RIGHT CHAN VOLTAGE AMP V

3、2 50HN5 LEFT CHAN POWER AMP VIEW FROM REAR OF CABINET JUMPER PLUGS L 6 f6 O V 1 2 3 4 S 6 7 8 9 10 R 9 O 9 A T1 & T2 CONN n POSITIONED FOR INTSPKR OPERATION PHASING DOT R15 BALANCE PARTS LOCATION SPKR JUMPER LOCATION INT 2 TO 3 7 TO 8 80TH 3 TO 4 8 TO 9 EXT 4 TO 5 9 TO 10 93 收音机爱 好者资料库 RadioFans.CN