Harman kardon hk 1200 1400 service manual

Page 1

The Harman Kardon
Model HK1200/HK1400 mmm
STEREO LINE AMPLIFIER

Teflhmfieefl Memel

harman kardon "K1400 Im- 4 Wm

The following marks found in the parts list of this manual
identify the models as follows.

(33 : North America area model Black version

3 : International model Black version

M? :Asia/Oceania model Black version

CONTENTS
SPECIFICATIONS .......................................... 2 GENERAL UNIT PARTS LIST ....................... 6

LEAKAGE TEST ..... ..2 GENERAL UNIT

DISASSEMBLY PROCEDURE ..3 P. C. BOARDS ............. . .
POWER CORD REPLACEMENT .. ..3 ELECTRICAL PARTS LIST .. 9, 11, 17
CONTROLS AND FUNCTIONS ..4 SCHEMATIC DIAGRAMS .. .10, 13, 19
ALIGNMENT PROCEDURES ..5 WIRING DIAGRAM ............................... 14, 20
BLOCK DIAGRAM ........................................ 5

harman/kardon

Parts and Service Office
240 Crossways Park West,Woodburv,N.Y. 11797
II 12»0530A152 693101500 Primed In Japan

Page 2

HK1200/HK1400

SPECIFICATIONS

Nominal Limit
RMS Output Power
3 n, 1kHz THD 0.1% 33.5w g 25W(Mode| :HK1200)
48.4w ; ADWIModsleKuoo)
4 9, (Hz THD 0.3% 49W g 40W(M0del : HK1200)
75.4w g 60WIModeleK1400I
High-instantaneous Current
Capability (HCC) 37A 2 30A (Model: HK1200)
43.5A g 35A (Model : HK1400)
Half Power Bandwidth
(THD 0.1%) <10Hz~100kHz <10Hz-70kHz
Frequency Response
; (at -3d8 down) 0.1Hz-420kHz <1Hz- ; 350kHz

(Model : HK1200I
0.1Hz-410kHz <1Hz- g350kHz
(Model : HK1400)

Input Sensitivity

i
r
I

(at 25W output) Normal : 135mV >135mV125mV/39kfli5kn
(Model : HK1200)

(at 25W output) -10dB : 440mV >440mVi25mV/39KESkfl
(Model 2 HK1200)

(at 40W output) Normal : 135mV >135mVir25mV/39kflt5kfl
(Model : HK1400)

(at 40W output) -1 0118: MZmV >442mVi25mV/39k5115kn

(Model : HK1400)

100dB g 90dB(Model:HK1200)
98.5dB g 90dB(Madel:HK1400)

Signal to Noise Ratio

Channel Separation
(at tokHz)

IM Distortion Ratio (at 1W)
Damping Factor (at 1H2)

DC Output Voltage (at 40)
L channel
R channel

Idling Current (at 80)
Dimensions
(W x H x D)

Weight

Power Supplies
North America area model
International and
Asia/Oceania models

Power Consumption

Nominal Limit
55 dB

0.1% (Model : HK1200)
0.1% (Model : HK1400)

(Model 1 HK1200)
(Model : HK1400)

GSdB a

0.065% g
0.052% 5

55.7 g 45
84.5 g 75

DmV i SOmV
0mV 1 60mV

75mA 75mAi 5mA
17.4" x 4.1 x131"
(443 x 105 x 347 mm)

18.3 lbs. /8.3 kg (Model : HK1200)
15.0 lbs. [6.8 kg (Model : HK1400)

AC120V, 60 Hz

AC230/240V. 50/60Hz

110W (Model : HK1200)
130W (Model : HK1200)
140W (Model : HK1400)
160W (Model : HK1400)

These specifications are service target specs.

Specifications and components are subject to change without notice.
Overall parlorrnance will be maintained or improved.

LEAKAGE TEST (FOR SERVICE ENGINEERS IN THE USA)
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,
cabinet backs, adjustment and
compartment covers or shields,
isolation resistor»capacity net-
works, 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 WI'540A 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 uF 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.)

TO EACH EXPOSED
METAL SURFACE OF
UNIT UNDER TEST

SIMPSON MODEL 229 ETC. FOR
LEAKAGE TEST

TO AC GFIOUND SUCH
AS WATEFI PIPE,BX CABLE,
CONDUIT, ETC.

HIGH
VOLTAGE
OR +LEAD

GFIOUND
LEAD

6

VTVM
.0 AC SCALEo_

1.5M!
(OW

NM

___||__

0.151.4F

TEST PROBE

T0 EXPOSED
METAL PARTS

CONNECT TO KNOWN
EARTH GROUND

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.