MARANTZ MA6100U1G
Service Manual

1. TECHNICAL SPECIFICATIONS
Rated power output (20 Hz to 20 kHz, 8 � load) ................................... 125 W Total harmonic distortion (20 Hz to 20 kHz, 8 � load) .................................. 0.02 % Output bandwidth (8 � load, 0.04 %) ........... 10 Hz to 50 kHz Frequency response ................... 10 Hz to 70 kHz, +0 / -1 dB Damping factor (8 � load, 1 kHz) ....................................... 60 S/N (IHF A network, input shorted) ............................. 110 dB

3. BLOCK DIAGRAM

MAIN AMP INPUT +29.0dB SPK OUT

INVERT OUTPUT MAIN TRANSF. PROTECTOR DRIVE EXT.CONT.IN

+15V -15V +B -B

Supply voltage [/N] ...................................... 230 V AC, 50 Hz [/U] ...................................... 120 V AC, 60 Hz Power consumption [/N] ................................................ 200 W (Stand-by) 1 W [/U] ............................................... 230 W (Stand-by) 2.5 W Dimensions Width ...................................................................... 88 mm Height ................................................................... 146 mm Depth .................................................................... 470 mm Weight ........................................................................... 5.7 kg
STANDBY

SUB TRANSF. +5V REMOTE CONT.IN REMOTE CONT.OUT AC OUTLET

+24V

µ-COM TMP47C201P

Design and specifications are subject to change without notice.

POWER SW

MAINS CORD

2.IC DATA
QY01 : TMP47C201P

4. TEST EQUIPMENT REQURED FOR SERVICING
Item
XOUT XIN RESET NOT USED DOUT PLED SLED VSS 1 2 3 4 5 6 7 8 16 15 R53 14 R52 13 R51 12 R50 11 R43 10 R42 9 VDD DIN (INT 1) VIN HEAT LEVEL RSEN AVSS Sink open-drain outputs ON

Use
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Distortion Analyzer
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Distortion measurements
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Sink open-drain outputs

R80 R81 R40 R41

Audio Oscillator
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Sinewave and squarewave signal source
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AC VTVM AC VTVM Oscilloscope
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Voltage measurements (AC)
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Waveform analysis and trouble shooting and ASO alignment
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Port R80 R81 R82 R40 R41 R42 R43 R50 R51 R52 R53

Pins 4 5 15 6 7 9 10 11 12 13 14

Name

In/Out Input

Active

Description Not used Data output from RC5.

DOUT DIN PLED SLED ON AVSS RSEN LEVEL HEAT VIN

Output Input Output Output Output Output Input Input Input Input L L L L/H L/H H/L L/H L/H L/H

Data input to RC5. Power LED. Stand-by LED. Power amplifier OFF/ON Power amp supply voltage control. Low/High voltage. Power amp output muting status detection input. OFF/ON. Power amp output level detection input. High/Low power. Heat sink overheating detection input. Overheat/Normal. Video and DC signal detection input. Detected/Not detected.

DC VTVM DC VTVM AC Wattmeter
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Voltage measurements (DC)
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Monitors primary power to amplifier
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Line Voltmeter
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Monitors poterntial of primary power to amplifier
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Vanable Autotransformer
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Adjust level of primary power to amplifier
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Circuit Tester
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Trouble shooting
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Shorting Plug
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Shorts amplifier input to eliminate noise pickup
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POWER

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