Harman kardon avr 15 service manual

Page 1

The Harman Kardon
Model AVR15 mm

AUDIO/VIDEO RECEIVER

Tedflmfiwi Manila

The following marks found in the parts list of this manual

0 : International model

identify the models as follows.

® : North America area model Black version
3 :lnternational model Black version

CONTENTS
SPECIFICATIONS ............................. GENERAL UNIT PARTS LIST ..................... '10
LEAKAGE TEST .................... ..2 GENERAL UNIT EXPLODED VIEW .
CONTROLS AND FUNCTIONS ..3 P. C. BOARDS .......................................... 12
DISASSEMBLY PROCEDURES ..5 ELECTRICAL PARTS LIST
CIRCUIT DESCRIPTION ........ ..6 IC BLOCK DIAGRAM ........
BLOCK DIAGRAM ...... .. 7 SCHEMATIC DIAGRAMS .
TIMING CHART ................. ..8 WIRING DIAGRAM ..............
ALIGNMENT PROCEDURES ........................ 8

harman/kardon

Pans and Service Office
80 Crossways Park West,Woodbury,N.Y. 11797
lilZ-OGTOAI 52 (39405 1500 Printed in Japan

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Avms :

SPECIFICATIONS

OFM SECTION

Tuning Range

SOdB Ouieting Sensitivity
Mono

Stereo
Usable Sensitivity

Image Ratio

IF Rejection

Spurious Response Rejection
Capture Ratio (at 451180
Alternate Channel Selectivity
I+400kHz,-400kHz 45dBf input)
AM Rejection (at 45 dBf)

Signal to Noise Ratio (at 651130

Mono

Stereo

Nominal Limit

87.5 MHz - 108.0 MHz

14.0 dBf s 19.0 dBf «an
24.5 dBf s 27.0 dBf 0130
33.0 dBf s 41.0 dBf GB
47.0 dBf s 50.0 um «50
14.0 dBf s 15.0 dBf cm
14.0 dBf s 17.0 dBf 0130
85.0 dB 2 40.0 dB
105.0 dB 2 80.0 dB
110.0 dB
1.5 dB 5 2.0 dB
77.0 dB 2 60.0 dB

60.0 dB 2 45.0 dB

80.0 dB 2 76.0 dB (319
73.5 dB 2 70.0 dB 090
71.5 dB 2 68.0 dB at.
64.5 dB 2 62.0 dB (130

Total Harmonic Distortion l65dBf ikHz input)

Mono
Stereo
Stereo Separation (at lkHz)

0AM SECTION
Tuning Range

20dB SIN Sensitivity
Selectivity (+10kHz, -10kHz)
Signal to Noise Ratio
Image Rejection

IF Rejection

OAUDIO SECTION

0.05% s 0.3%
0.1% s 0.4%
52.0 dB 2 42.0 dB cm
47.0 dB 2 35.0 dB .130

530 kHz ~ 1710 kHz Gib
531 kHz - 1602 kHz 030

400uVIm s 700pV/m

35.0 dB 2 25.0 dB
52.0 dB 2 47.0 (18
39.0 dB 2 30.0 dB
63.0 dB Z 50.0 dB

Usable Sensitivity (at 30W output)

CD
Signal to Noise Ratio
CD

133.0 mV 135 mViZE mV/ 26k!)

84.0 dB 2 75.0 dB

Nominal Limit
Channel Separation
CD 53.5 dB 2 45.0 dB
IM Distortion Ratio (at 15W) 0.047 % < 0.1 %
RMS Output Power
on, 1kHz, THD 0.1%

(Front, Left Center Right)

38w230w®
38w230w®o

so. 1kHz. THD 0.3% 55 w 2 35 w (3)10
55 w 2 30 w (Do
an, 1kHz. THD 0.3% 23 w 2 20 w

(Rear, Left Right)
High-instaneous Current Capability (HCC)

30.0 A 2 20.0 A
Damping Factor 44.0 2 30.0
Tone Control Characteristics
Bass lat 50Hz)
Boost 10 dB:2dB
Cut 10 dB t 2 dB
Treble lat 10kHz)
Boost 10 dB i 2 dB
Cut 10 dB 1 2 dB
Loudness Control (at 50Hz) 10 dB 1 2 dB
DC output Voltage
L channel 34 mV i 60 mV
R channel 24 mV 1: 60 mV

Frequency Response (at -3dB Down)
0.4 Hz - 175 kHz <1 Hz- 2150 kHz (Ell.
0.4 Hz - 185 kHz <1 Hz - 2150 kHz 0130

Rise Time 1.6 usec. S 3 psec.
Subwoofer Output (at 60) 2.0 V/10kfl
ODIMENSIONS 17 - 3/8" x 4~1l8" x 13 - 3/4"
(WxH xD) (443x105x349 mm)
OWEIGHT 18.5 lbs I 8.4 kg

OPOWER SUPPLY Ac 120v. 60Hz «an
AC 230V/240v, 50HzJ60Hz 0130
OPOWER CONSUMPTION 240w1stVAl 130

200W 1E}

These specifications are service target specs.
Specifications and components are subjectto change without notice.
Overall performance will be maintained or improved.

LEAKAGE TEST (FOR SERVICE ENGINEERS IN THE U.S.A)

Before returning the unit to the user, perform the following safety checks:

1. Inspect all lead dress to make cer-
tain that leads are not pinched or
that hardware is not lodged be-
tween the chassis and other metal

parts in the unit.

2. Be sure that any protective de-
vices such as nonmetallic control

knobs, insulating fishpapers, cabi-
net backs, adjustment and com-
partment covers or shields, isola-

tion resistor-capacity networks,
mechanical insulators, etc. which
were removed for servicing are

properly reinstalled.

3. Be sure that no shock hazard exists; check for leak-
age current using Simpson Model 229 Leakage
Tester, standard equipment item No. 21641, RCA
Model WT540A or use alternate method as follows:
Plug the power cord directly into a 120-volt AC
receptacle (do not use an Isolation Transformer for
this test). Using two clip leads, connect a 1500 Ohm,
10-watt resistor paralleled by a 0.15 pF capacitor, in
series with all exposed metal cabinet parts and a
known earth ground, such as a water pipe or con-
duit. Use a VTVM or VOM with 1000 Ohms per volt,
or higher sensitivity to measure the AC voltage drop
across the resistor. (See Diagram.) Move the resis-
tor connection to each exposed metal part having a
return path to the chassis (antenna, metal, cabinet,
screw heads, knobs and control shafts, escutcheon,
etc.) and measure the AC voltage drop across the
resistor. (This test should be performed with the

power switch in both the On and Off positions.)

A reading of 0.35 volt RMS or more is excessive and indicates a potential shock hazard which must be corrected
before returning the unit to the owner.

TO EACH EXPOSED
METAL SURFACE OF
UNIT UNDER TEST

SIMPSON MODEL 229 ETC. FOR
LEAKAGE TEST

TO AC GROUND SUCH
AS WATER PIPEBX CABLE~
CONDUIT. ETC.

HIGH

GROUND

VOLTAGE LEAD
OH + LEAD
VTVM
-0 AC SCALEO_

i.5kfl
10W

WV

__Il_

O.I5MF

TEST PROBE

TO EXPOSED
METAL PAR TS

CONNECT TO KNOWN
EARTH GROUND