Denon PMA 232 Service Manual

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D E N O N Hi-Fi Component/ Amplifier

SERVICE MANUAL
MODEL pMA-asa

SOLID STATE STEREO
INTEGRATED AMPLIFIER

NIPPON COLUMBIA cu., LTD. '

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- PMA-ESE -
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TABLE OF CONTENTS

1 ETCJM MUTING CONTROL UNIT PARTS LIST

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§ SPECIFICATIONS '''' 7

] DISASSEMBLY INSTRUCTIONS 2 CHASSIS & CABINET GROUP PARTS LIST 7

I PRINTED CIRCUIT BOARD ADJUSTMENTS AND MEASUREMENT PROCEDURES ------ s

I PATTERNS AND PARTS LIST

. ETC-993 EQUALIZER. TONE AMP UNIT 3 WIRING DIAGRAM 9

ETC-85D POWER AMP PROTECTOR &

: POWER SOURCE UNIT 5

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E". 4"

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'3 SPECIFICATIONS

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Type: All silicon transistor stereo pre~main Equalizing characteristic,
amplifier RIAA deviation: tOAdB (ax 20Hz ~ ZOKHz, Rec out)
POWER AMPLIFIER & PRE AMPLIFIER SECTION TONE CONTROL SECTION
'c " Winn" PM comp'mnwv- WhD'e-flwwirec Transmigion: 20Hz - 50m: 2 1 dB a TONE CENTER
4, amm_mu 061-, Pair-wit , - v.. .. ,A .w- -' i mm

mmm powe . 45W/45W (II-fad, "or-ms) at THE. 0.1%
(Each channel driven): 62 WI62W (load, 4 ohms) M T.HIDI 01 %

Tone control: BASS:
Rand Output power: 38W + 28W (load. 3 ohms) at T.H.D. 0.1% T +7.5dB, -5.0d8 at IDOHZ
(Both channal driven): 47w + 47w (load. 4 ohms) aI T.H.D. 0.1% REBLE *75dB' 59 3 OKH
I Harmonic distonion: Lower than T.HD. 041% (at 8 Waits

Low filIer cutoff

and 20Hz m 2001:) frequency: 15H: (-12.3aa)
Cross modulation I
dislo rtio n: Lower thnn 0.1% lat equivalent sign Power requircmcm: AC 220/240V changeable, 50Hz,
WM rm MW" I2ov 60H2 (For USA, Canada)
313" bandwidth: 20Hz - 30KH2 (at T.H.D. 0.3%) Powar consumption: 250W
Dimmsions: 396mm (W) x 147mm (H) x 281 mm (D)
Input Sensitivity/ham Weight: 9 Kg

I impedance: (at IKHz) PHONO: 2.2mV rms. 50K ohms 0%
TUNER:14.0mV ms. 80K ohmstfi
AUX: 14.0mV r.m.s. 80K ohms 31.

Maximum allowabla: PHONO: Mike than 200mVr.m.s. (IKHz)
Input level: