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Thanks to this service manual I repaired my old camcorder! The manual perfectly explains how to disassemble the camcorder step by step.
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This manual is very useful because it presents the technical specifications of the cd player, including the manufacturer of the reader, this helps if you need to replace it. It also displays the settings and layout of the circuit.
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Manual was a good representation of service infomation for the EWV404. It worked well for my repair.
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Great quality copy, right what I was looking for, all I need to fix my radio.
Thanks
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I BOUGHT A PAIR OF INFINITY VINTAGE SPEAKERS THAT REQUIRED TO BE REPAIRED AND THE ELECTRONIC TECHNICIAN ASKED ME FOR THE SERVICE MANUAL.
I TRIED TO GET IT AT THE MANUFACTURER'S SITE WITH NO SUCCESS, SO I STARTED TO LOOK FOR IT IN THE WEB FOR A LONG TIME, UNTIL I FOUND THE SERVICE MANUAL IN THIS EXCELLENT SITE "OWNER'S MANUAL.COM".
NOW I HAVE MY SPEAKERS WORKING AND ENJOYING THE MUSIC I LIKE.
THANKS TO "OWNER`S MANUAL.COM" I RECOMMEND THIS SITE TO EVERYONE.
KAC-6403
BLOCK DIAGRAM
AUDIO UNIT (X09-8542-70)
J1 L LINE IN A IC2 R ISOLATION AMPLIFIER IC2 ISOLATION AMPLIFIER VR1 IC9 +1 Ach INPUT GAIN CONT. C151,153,R165,167 HPF 80Hz 12dB/OCT IC7 S2 Q101,102, 201,202 Q103-114, 119-126 POWER AMPLIFIER Q103-114, 119-126 POWER AMPLIFIER MUTE IC4 L LINE IN B IC4 R ISOLATION AMPLIFIER S1 ISOLATION AMPLIFIER S1 VR2 S3 Bch INPUT GAIN CONT. S3 IC5 LPF+10dB 80Hz 12dB/OCT S3 IC6 +1 -3dB ATT IC5 S3 -1 -3dB ATT A-AB J2 Q3,4 15V AVR L2 DC/DC CONVERTER Q605 P.CON CIRCUIT TH1 THERMAL PROTECTION +6dB 0dB IC13 OVER VOLTAGE PROTECTION +29.5dB BATTERY P.CON Q115-118,215-218 DC DETECT & OVER ROAD PROTECTION Q203-214, 219-226 POWER AMPLIFIER Q203-214, 219-226 POWER AMPLIFIER L SPEAKER OUT B R J9 L SPEAKER OUT A R
+1 -3dB ATT IC7
IC9 -1
C152,154,R166,168 HPF 80Hz 12dB/OCT
S2
+1 -3dB ATT
SPEAKER INPUT
COMPONENTS DESCRIPTION
� AUDIO UNIT (X09-8542-70)
Ref. No IC1 IC2 IC3 IC4 IC5 IC6 IC7 IC9 IC13 Q3,4 Q5,6 Q7~10 Application / Function Buffer AMP Isolation AMP Buffer AMP Isolation AMP LPF -3dB ATT Buffer AMP Phase inverter DC/DC converter Constant voltage power supply DC/DC converter DC/DC converter Operation / Condition / Compatibility Amplifies 6dB by decreasing impedance. Decreases common mode noise. Amplifies 6dB by decreasing impedance. Decreases common mode noise. B-Rch side is phase inverter. B-Lch side is buffer amplifier. Decreases impedance. A-Lch side is buffer amplifier. Oscillates and controls DC/DC converter. Controls ±15V constant voltage. Switching FET. Drives Q5�s and Q6�s gates.
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