Harman kardon td 4800 service manual

Page 1

The Harman Kardon
Madel TD4800 Manual 165A
3 HEADS CD TRANSCRIP'HON QUALITY CASSEITE DECK

Tedlnlmficeal M@Uflflfl@fl

harman kardon TD My?

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

am : North America area model

133 : North America area model Black version

0 : International model

Ger : International model Black version

0081701 /'/,

harman/kardon

240 Crossways Park West, Woodbury. N Y, 11797
1112-3152165AE P-l19012 2000 Prlnled in Japan

Page 2

TD4800

SPECIFICATIONS
Nominal Limit Nominal Limit
Track Configuration 4-track 2 Channel Stereo Channel Separation 45dB z 35dB
, , Cassette Deck Crosstalk 70438 2 GOdB
. V ' ~ Record/Playback Distortion
I ' - MECHANICAL SECTION (Input 1kHz)
Record/Playback Tape Speed LN 0.6% S 1.2%
Drift 4.75cm/sec. 0.2% § 1.0% Cr02 1.3% § 2.0%
Wow and Flutter (WTD) 0.035% (NAB) S 0.07% Metal 1.1% é 2.0%
0.06% (CCIH) § 0.12 MPX Filter Attenuation
Take Up Torque 509mm 35 ~ 709mm at 15kHz 0.3118 é 1dB
Back Tension 4gr.cm 2 ~ 69mm at 19kHz 35dB 2 30:18
F.FWD Torque 1409mm 70 ~ 1609mm Erase Ratio (Input 80Hz)
REW Torque 1409mm 70 ~ 160gr.cm LN 70dB a SDdB
F.FWD/REW Time 705ec. g 100sec. Metal thB ; 56dB
(0-60 Tape) Input Sensitlvlty 45mV 30(rnin) ~ 50(max) rnV
(Input 1kHz) at Line Input
- AMPLIFIER SECTION Input Impedance 2am 19(m'n) ~30(max) k0
Bias Frequency 210kHz 1 5kHz (Input 1kHz) at Line Input
Playback Output 1150mV : 1.SdB
(Output VR Max.) 4 DIMENSIONS (W K H x D) 17-3/ " x 5" x 12-5/5"
Signal-to-Nolse Ratio (443 x 126 x 320 mm)
at Line Input
(input 1kHz, 100mV) - WEIGHT 15.2Ibs (6.9kg)
lHF-A WTD at Dolby Level (WTD)
Dolby NR off LN 51dB - POWER SUPPLY
Cr02 54dB U.S.A. and Canada models AC120V. 60H:
Metal 54dB lnternatlonal model ACZZOV/ZAOV, 50/60Hz
Dolby B/C NR LN SQdB
CrOz 72dB ; 66dB ~ POWER CONSUMPTION
Metal 72dB a 66dB U.S.A. and Canada models 29W
Dolby 8 NR LN 72dB International model 31W
CrOz 7503 2 68:18 _ .
Metal 75dB ; 68 dB These specifications are servroe target specs.

Specifications and components are subject to 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: SIMPSON MODEL 229 51-34 FOR
1. Inspect all lead dress to make certain LEAKAGE TEST
that leads are not pinched or that
TO EACH EXPOSED

To Ac GROUND SUCH
hardware is not lodged between the METAL SURFACE or:

AS WATER PIPE,BX CABLE,

chassis and other metal parts in the UNIT UNDER TEST chSrAGE SESAJDND CONDUIT, ETC-
unlt. OR + LEAD
2. Replace all protectlve devices such as
nonmetallic control knobs, insulating
tishpapers, cabinet backs, or shields, fa
isolation resistor-capacitor networks,
mechanical insulators, etc. VTVM
3 8 3. Be sure that no shook hazard exists; check for leakage current using -0 AC SCALEO-
no Simpson Model 229 Leakage Tester, standard equipment item No.
_ 3 21641, RCA Model WT540A or use alternate method as follows: 11%;,
I- Plug the AC line cord directly into a 120-volt AC receptacle (do not use an 'VW

Isolation Transformer for this test). Using two clip leads, connect a 1500
ohm, 10-watt resistor paralleled by a 0.15uF capacitor, in series with all
exposed metal cabinet parts and a known earth ground, such as a water I I

pipe or condult. Use a VTVM or VOM with 1000 ohms per volt, or higher

sensitivlty to measure the AC voltage drop across the resistor. (See 0'15}:

Diagram.) Move the reslstor connectlon to each exposed metal part having TEVST PROBE

a return path to the chassis (antenna, metal, cablnet, screw heads, knobs

and control shafts, escutcheon, etc.) and measure the AC voltage drop ,

across the reslstor. (This test should be performed with the power switch in TO EXPOSED CONNECT TO KNOWN
METAL PARTS EARTH GROUND

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.