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THE

POWER AMPLIFIER

DH-200

INSTRUCTIONS

for ASSEMBLY

and OPERATION

929204

$3.00

T H E DAVID H A F L E R C O M P A N Y

5910 Crescent Boulevard, Pennsauken, New Jersey 08109

Please refer to this serial

number in all communications

regarding this equipment.

Содержание DH-200

Страница 1: ...DH 200 INSTRUCTIONS for ASSEMBLY and OPERATION 929204 3 00 THE DAVID HAFLER COMPANY 5910 Crescent Boulevard Pennsauken New Jersey 08109 Please refer to this serial number in all communications regard...

Страница 2: ...nks the conservative operating levels of the MOSFET output devices all are evidence of the design efforts to achieve exceptional reliability simultaneously with state of the art sonics and specificati...

Страница 3: ...signal content such as oscillation Failing evidence of this the amplifier may have malfunc tioned Because of the very large heat sinks it is highly unlikely that any normal signal will cause the ampli...

Страница 4: ...u proceed Fatigue in creases the risk of error so take a break rather than push to early completion There are relatively few separate compo nents in this design to make it easy to pack everything away...

Страница 5: ...from a con nection by heating it and allowing the solder to flow onto the iron which is then wiped on the sponge ALL SOLDER USED MUST BE ROSIN CORE Never use acid core solder or any separate flux in e...

Страница 6: ...ormance of a factory assembled unit and can continue to perform properly for years to come Check your work and make sure the entire step has been completed before placing a check mark in the space pro...

Страница 7: ...transfer Take the time to observe the direction each wire takes from its connecting lug so that when you connect the first end it will be pointing in the right direction This makes the job neater and...

Страница 8: ...from the chassis when it is pressed over the lamp case Be sure it is pressed fully home so the lamp is tight 32 D Connect one lead of the lamp to TS lug 2 S 3 Con nect the other lamp lead to PS lower...

Страница 9: ...ont when the long row of eyelets is next to the chassis with the circuit board up against the chassis Wires will be connected from the top ot the board and they must be soldered to the underside Even...

Страница 10: ...ly capaci tors should be kept away from each board The green leads from the black output terminals to the power sup ply should be brought together throughout most of their length 77 Check all your sol...

Страница 11: ...ate the source of a problem may be obtained by writing the Technical Services Department It is helpful to know the serial number of the unit and the results of any tests you have performed SERVICING A...

Страница 12: ...r 100 110 120 200 220 and 240 volt 50 or 60 cycle lines The schematic diagram details the wiring com binations which are represented pictorially here Note that a 5 lug terminal strip is required when...

Страница 13: ...r rubber 1 2 for fuse holder 696081 1 Chassis 711007 1 Cover 711008 2 Capacitor 10 000 mfd 75V 294103 2 Bracket round for capacitor 717058 1 Diode rectifier block 544252 4 Feet rubber 899757 2 Fuse ho...

Страница 15: ...341020 Tl Power Transformer 464002 T2 Power Transformer International 464003 CI 10 mfd 16 V non polarized electrolytic 203106 C2 390 pF 500V Mica 257391 C3 0 001 mfd 100V Film 264102 C4 0 001 mfd 100V...

Страница 16: ...on 20 Hz 66 dB 1 kHz 66 dB 20 kHz 60 dB Signal to Noise Ratio unweighted Better than 100 dB at 100 watts into 8 ohms Input Impedance 22 000 ohms Input Sensitivity 1 5 volts rms for 100 watts into 8 oh...

Страница 17: ...HAFLER DH 200 STEREO POWER AMPLIFIER P I C T O R I A L D I A G R A M POWER TRANSFORMER 120 Volt AC Line Connections shown OUTPUT MODULE ASSEMBLY COPYRIGHT 1980 ALL RIGHTS RESERVED...

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