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HST-SE581

AEP Model

E Model

Australian Model

SERVICE MANUAL

CASSETTE DECK RECEIVER

MICROFILM

Manufactured under license from Dolby Laboratories
Licensing Corporation.
“DOLBY” and the double-D symbol 

a

 and “PRO

LOGIC” are trademarks of Dolby Laboratories
Licensing Corporation.

This set is the tuner deck and amplifier
section in SEN-T481.

SPECIFICATIONS

Tape deck

Model Name Using Similar Mechanism

HST-471

Section

Tape Transport Mechanism Type

TCM-220WR2

— Continued on next page —

Tuner section

FM stereo, FM / AM superheterodyne tuner

FM tuner section

Tuning range

87.5 – 108.0 MHz

Antenna

FM leadantena

Antenna terminals

75 

 unbalanced

Intermediate frequency

10.7 MHz

AM tuner section

Tuningrange
    European model:

531 – 1,602 kHz

    Other models:

531 – 1,602 kHz (with the interval set at
9 kHz)
530 – 1,710 kHz (with the interval set at
10kHz)

     Antenna

AM loop antenna, outdoor antenna
terminals

     Intermediate frequency

450 kHz

Amplifier section

European models:

(FRONT)
DIN power output

90 + 90 W
(at rear / center / woofer off at 1 kHz, 8 

)

Continuous RMS power output

110 + 110 W
(at rear / center / woofer off at 1 kHz,
 10% THD, 8 

)

70 W / ch
(at SURROUND ON at 1 kHz,
10% THD, 8 

)

(REAR)

40 W
(at front / center / woofer off at 1 kHz, 8 

)

(CENTER)

40 W
(at front / rear / woofer off at 1 kHz, 8 

)

(WOOFER)

70 W
(at front / rear / center off at 40 Hz, 4 

)

Other models:

Peak music power output

1,600 W (total)

(FRONT)
Continuous RMS power output

90 + 90 W
(at rear / center / woofer off at 1 kHz,
10% THD, 8 

)

(REAR)

40 W

(at front / center / woofer off at 1 kHz, 8 

)

(CENTER)

40 W
(at front / rear woofer off at 1 kHz, 8 

)

(WOOFER)

70 W
(at front /rear/ center off at 40 Hz, 4 

)

Inputs
     PHONO (phono jacks):

sensitivity 2.5 mV, impedance 50 k

     CD (phono jacks):

sensitivity 400 mV, impedance 50 k

     VIDEO1, 2 (phono jacks):

sensitivity 250 mV, impedance 50 k

Summary of Contents for HST-SE581

Page 1: ... 9 kHz 530 1 710 kHz with the interval set at 10kHz Antenna AM loop antenna outdoor antenna terminals Intermediate frequency 450 kHz Amplifier section European models FRONT DIN power output 90 90 W at rear center woofer off at 1 kHz 8 Ω Continuous RMS power output 110 110 W at rear center woofer off at 1 kHz 10 THD 8 Ω 70 W ch at SURROUND ON at 1 kHz 10 THD 8 Ω REAR 40 W at front center woofer off...

Page 2: ...HST SE581 13 14 5 3 SCHEMATIC DIAGRAM MAIN SECTION 1 2 See page 10 for Waveforms See page 39 for IC Block Diagrams ...

Page 3: ...HST SE581 15 16 5 4 SCHEMATIC DIAGRAM MAIN SECTION 2 2 See page 39 for IC Block Diagrams ...

Page 4: ...HST SE581 21 22 5 7 SCHEMATIC DIAGRAM DISPLAY SECTION See page 10 for Waveforms See page 41 for IC Pin Function ...

Page 5: ...HST SE581 25 26 5 9 SCHEMATIC DIAGRAM SW SECTION DOLBY NR 1 u ...

Page 6: ...HST SE581 29 30 5 11 SCHEMATIC DIAGRAM POWER AMP SECTION See page 39 for IC Block Diagrams ...

Page 7: ...HST SE581 33 34 5 13 SCHEMATIC DIAGRAM DECK SECTION See page 39 for IC Block Diagrams ...

Page 8: ...HST SE581 37 38 5 15 SCHEMATIC DIAGRAM POWER TRANSFORMER SECTION EXCEPT E MODEL EXCEPT E MODEL ...

Page 9: ... VOL OUT L RECT DC CUT4 R RECT DC CUT3 L BPF3 VLR TH VLR 1 VLR 2 VCS 2 VCS 1 VCS TH L R RECT DC CUT2 L R RECT DC CUT1 R DET3 OP VREF S VOL IN S OUT DC CUT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 CONTROL LATCH SHIFT RESISTOR LEVEL SHIFT CL DI CE VEE OUT IN OUT IN OUT IN VSS S RESET VDD OUT IN IN OUT IN OUT IN DECODER LATCH SHIFT REGISTER CONTROL 1 2 3 4 5 6 ...

Page 10: ... RECT C MODE LOGIC LOGIC MASTER VOL NF SW S S S P P B B B B P B C D R L C S L R P P P B P B P B P B P B S MASTER VOL VDD PCM PCM CONTROL SRAM IN FILTER R L C S R P B P B P B P B L L R L R R BPF2 R BPF1 S DC OUT C DC OUT R DC OUT L DC OUT V REF VCC C OUT S OUT R OUT L OUT GND L IN R IN S IN DELAY OUT C VOL IN DET IREF R OUT R NF L NF L OUT L BPF2 L BPF1 RT IN LT IN DC CUT C MODE GND NS BPF1 OSC NS ...

Page 11: ... RFOUT RROUT VSS CL DI CE VREF LROUT LFOUT LFIN LSOUT LS3 LS2 LS1 LSIN LTOUT LT3 LT2 LT1 LCOM LVRIN 1 2 3 4 5 6 7 8 9 10 GND MOTOR DRIVE NOISE FILTER CLAMP FWD IN REV IN VCC 1 VCC 2 NOISE FILTER MOTOR DRIVE MOTOR DRIVE MOTOR DRIVE T S D O C P FWD REV STOP CONTROL LOGIC 1 2 3 4 5 6 7 8 9 TR3 R1 R2 TR4 TR6 TR7 R4 R9 TR5 TR1 TR2 R6 D4 D3 R7 R8 TR8 D1 D2 R5 R3 INPUT NF VEOUT VEOUT VSS GND VCC SUB 1 2 ...

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