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2

Two Channel Amplifier

Harman Kardon

SIGNATURE 1.5

Signature 1.5 FRONT PANEL CONTROLS

harman/kardon

1.5

On/Off

I G N A T U R E

s e r i e s

S

1

2

3

1 Power Switch:

Press this switch to turn the 1.5 on for

manual operation, or to place it in the Standby mode for

automatic/remote turn-on when the 1.5 is connected to a

device with a compatible trigger circuit.

Note:

Even when the Power Switch is off, the unit is still

connected to the AC power supply.

2 Power-On Indicator:

When the word SIGNATURE is

illuminated in blue, the 1.5 is in a normal operating

condition.

3 LED Indicator:

The color of this indicator varies with the

status of the 1.5. It is red when the unit is off and in Manual

Operation, amber in the Standby mode, and flashing green

during Warm-Up. If the indicator flashes and alternates

between red and amber, the 1.5 is in the Protect mode,

indicating a problem in the unit or connections to the

speakers.

FEATURES

The Harman Kardon Signature 1.5 is a flexible, state-of-the-art audio power amplifier designed to deliver high

performance for use in home theater or music reproduction applications. The following are among its many

features:

n

Designed and manufactured in the United
States

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High-current output capability

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Two channels with bridgeable outputs

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Ultrawide bandwidth design

n

Low negative feedback

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Low harmonic and intermodulation distortion

n

Massive heat sinks for quiet convection cooling

n

High-current power supply

n

Remote turn-on/turn-off circuitry with select
Signature Series and Harman Kardon products
or through optional accessories.

Summary of Contents for SIGNATURE 1.5

Page 1: ...ure 1 5 Harman Consumer Group 250 Crossways Park Drive Woodbury N Y 11797 1 800 645 7484 in the USA A Harman International Company Part No 1112 SIGNATURE1 5 Rev A 7 99 TECHNICAL MANUAL Two Channel Amp...

Page 2: ...SFORMER WIRING Rev B 17 INTEGRATED CIRCUITS 18 Signature 1 5 POWER SWITCH INDICATOR 19 SCHEMATIC 1 of 1 Signature 1 5 POWER AMP SCHEMATIC 1 of 2 20 Signature 1 5 POWER AMP SCHEMATIC 2 of 2 21 SPECIFIC...

Page 3: ...Operation amber in the Standby mode and flashing green during Warm Up If the indicator flashes and alternates between red and amber the 1 5 is in the Protect mode indicating a problem in the unit or c...

Page 4: ...the Positive terminal ONLY to the Positive terminal on your speaker Important Note When the 1 5 is used in the Bridged Mono mode do not connect a speaker with an impedance less than 8 ohms 9 Channel...

Page 5: ...ver or other audio equipment an AC outlet that is part of a current sensing control unit activated by a pre amp or surround processor or a switched AC wall outlet Connect the 3 5 mm miniplug from the...

Page 6: ...the cap moves back on its threads past the holes at the rear of the terminal Making certain that you observe the correct polarity for the type of system being installed Stereo or Bridged Mono pass the...

Page 7: ...receives a signal from the triggering device Finally turn on your Signature 2 0 PT2500 or other trigger source to turn the Signature 1 5 on The indicator will flash green briefly and then go out the...

Page 8: ...connected to n Check input connections From One or more channels proper jack n Speakers not connected n Check speaker connections Properly n Improper settings or output n Check the settings on your p...

Page 9: ...16 PHP 80 112 8050 0 WASHER 4 SPILT 111 7011 0 WASHER 6 SPILT ZINC 112 7021 0 STRAIN RELIEF 16 2 SPT 2 UL CSA 100 0035 0 POWER CORD 2x18 16 GA SPT 2 UL CSA A095 0002 0 FOR 120V VERSION A095 0009 0 FOR...

Page 10: ...LT 6 32 5 16 PHP BO 27 153 0000 0 TIE WRAP BLACK 1 153 0100 1 SAFETY LABEL RISK OF FIRE FAST F 1 120 0002 1 ALUM 080 5052 H32 6 00X5 15 1 120 0012 0 STEEL 20 GA 036 EGC 48X120 615 HA132 0015 B SIG 1 5...

Page 11: ...PE RED BRN HA145 0003 C GALLIEN TECH 10A 125V HARMAN HA206 0003 C SIG 1 5 POWER SWITCH INDICATOR BOARD Rev D HA145 0003 D SIG 1 5 POWER SWITCH Rev B9 INDICATOR BOARD HA405 0003 B9 10A 125V HARMAN HA20...

Page 12: ...T J4 X 5 X 1 X 2 R119 R120 R118 R99 R96 R98 R97 R95 R94 R75 R83 R117 R103 R102 R59 R77 R71 R58 R81 R56 R57 R70 R53 R85 R74 R76 R54 R44 R43 P5 P2 R73 R72 R45 C E B Q53 C E B Q52 C E B Q41 C E B Q55 C...

Page 13: ...0750 0 RES CARBON FILM 7 5 OHM 1 8W 5 1 R17 A051 1502 0 RES CARBON FILM 1 5K OHM 1 4W 5 1 R16 A051 2202 0 RES CARBON FILM 2 2K OHM 1 4W 5 1 R21 A050 1005 0 RES CARBON FILM 1M OHM 1 8W 5 1 Miscellaneou...

Page 14: ...9 56 A050 5602 0 RES CARBON FILM 5 6K OHM 1 8W 5 2 R50 57 63 64 A050 1002 0 RES CARBON FILM 1K OHM 1 8W 5 18 65 66 67 68 72 73 74 75 76 77 92 93 116 120 R52 59 A050 1502 0 RES CARBON FILM 1 5K OHM 1 8...

Page 15: ...1 4 Two Channel Amplifier Harman Kardon SIGNATURE 1 5 Signature 1 5 120V TRANSFORMER WIRING Rev A Signature 1 5 120V Transformer Wiring Rev A...

Page 16: ...1 5 Two Channel Amplifier Harman Kardon SIGNATURE 1 5 Signature 1 5 120V TRANSFORMER WIRING Rev B Signature 1 5 120V Transformer Wiring Rev B...

Page 17: ...1 6 Two Channel Amplifier Harman Kardon SIGNATURE 1 5 Signature 1 5 230V TRANSFORMER WIRING Rev A Signature 1 5 230V Transformer Wiring Rev A...

Page 18: ...1 7 Two Channel Amplifier Harman Kardon SIGNATURE 1 5 Signature 1 5 230V Transformer Wiring Rev B Signature 1 5 230V TRANSFORMER WIRING Rev B...

Page 19: ...INPUT A GND VS OUTPUT B INVERTING INPUT B NON INVERTING INPUT B U2 LM556CN DUAL TIMER A001 2009 0 1 5 2 6 3 7 4 14 10 13 9 12 8 11 COMP COMP COMP COMP V CC GND DISCHARGE DISCHARGE THRESHOLD THRESHOLD...

Page 20: ...wo Channel Amplifier Harman Kardon SIGNATURE 1 5 Signature 1 5 POWER SWITCH INDICATOR SCHEMATIC 1 of 1 Signature 1 5 Power Switch Indicator Schematic 1 of 1 5 5 4 4 3 3 2 2 1 1 A A B B C C D D E E F F...

Page 21: ...2SA1962 R22 R1W 33 R26 R1W 33 R18 R1W 33 1 2 RES IND 2UH 2UH R107 RES 5W 1W s 3 1 R117 750 R103 180 GND2 D10 D1N4148 C37 476 100V C8 828 80V R3 6 8K 2W C7 80V 828 GND2 P3 7 12 VDC J3 2 TS T 3 S1 PHON...

Page 22: ...1 3 1 1 1 2 2 3 2 3 3 3 3 2 2 2 1 1 1 Q23 2SC5242 Q22 2SC5242 Q15 2SC5242 Q14 2SC5242 Q7 2SC5242 Q6 2SC5242 R41 100 R37 R1W 33 R33 R1W 33 R29 R1W 33 R25 R1W 33 R21 R1W 33 R17 R1W 33 C12 106 R5 10K R9...

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