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SERVICE
MANUAL
C
A
S
S
E
T
T
E
RECEIVER
POP-120A

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Table of Contents
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Summary of Contents for Inter-m POP-120A

  • Page 1 SERVICE MANUAL RECEIVER POP-120A...
  • Page 2 AMP SECTION 1. OFF SET VOLTAGE A. Setting Set the master volume controls minimum. B. Connection C. Adjustment Control OFFSET until voltmeter is the “0” position. 2. IDLE CURRENT A. Setting Set the master volume controls minimum. B. Connection C. Adjustment Adjust IDLE so that the current through the R56, R57, R58, R59 become 10 milliampere.
  • Page 3 - ELECTRICAL Rated Output Power(RMS) ........................ 120W Frequency Response Mic 1-3 ..........................100Hz~10kHz Aux ............................80Hz~15kHz 60Hz~18kHz Amp In ..........................T.H.D(Mic 1-3, Aux, Amp In) ....................Less than 1% Mic 1-3 ............................. 55dB Aux ..............................65dB 90dB Amp In .............................. Input Sensitivity/Impedance Mic 1-3 ....................
  • Page 4 Ref No. Part No. Description Value Ref No. Part No. Description Value MAIN B'D (4005401100) AMP B'D (4005401110)
  • Page 5 Ref No. Part No. Description Value Ref No. Part No. Description Value SPK SELECTOR B'D (4005401130) POWER SWITCH B'D (4005401140) EM B'D (4005401150) VOLUME B'D (4005401120) LED DRIVER B'D (4005401160)
  • Page 6 Ref No. Part No. Description Value LED B'D (4005401170) PHONE JACK B'D (4005401180) AC SEL B'D (4005401190) ASS'Y...

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