HT-DDW680, HT-DDW780, HTP-36DW, STR-K680, STR-K780 - Sony Audio Service Manual (repair manual). Page 2

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The area code of the receiver you purchased is 
shown on the lower right portion of the rear panel 
(see the illustration below).

Any differences in operation, according to the area 
code, are clearly indicated in the text, for example, 
“Models of area code AA only”.

CENTER

FRONT

+

+

Area code

Parts No.

Reproduction frequency range:

28 – 20,000 Hz

Tone

Tuning range

87.5 - 108.0 MHz 

Antenna

FM wire antenna

Antenna terminals

75 ohms, unbalanced

Intermediate Frequency

10.7 MHz

Tuning range

Models of area code AEP, UK, RU,

 SP, SP6, A US

With 9-kHz tuning scale: 

531 - 1,602 kHz

Antenna

Loop antenna

Intermediate Frequency

450 kHz

Inputs/Outputs

Video:

1 Vp-p, 75 ohms

COMPONENT VIDEO:

Y: 1 Vp-p, 75 ohms

P

B

/C

B

/B-Y: 0.7 Vp-p, 

75 ohms

P

R

/C

R

/R-Y: 0.7 Vp-p, 

75 ohms

80 MHz HD Pass Through

Gain levels

±6 dB, 1 dB step

Models of area code E51
With 10-kHz tuning scale: 530 – 1,610 kHz

4)

With 9-kHz tuning scale: 531 – 1,602 kHz

4)

Models of are code AR, MX
With 10-kHz tuning scale: 530 – 1,610 kHz

4)

You can change the AM tuning scale to 9 kHz or 
10 kHz. After tuning in any AM station, turn off 
the receiver. While holding down TUNING +, 
press ?/1. All preset stations will be erased when 
you change the tuning scale. To reset the scale to 
10 kHz (or 9 kHz), repeat the procedure.

Power requirements

Power consumption

Power consumption (during standby mode)

0.2 W

Dimensions (w/h/d) (Approx.)

430 

× 145 × 300 mm

including projecting parts 
and controls

Mass (Approx.)

7.5 kg

Design and specifications are subject to 
change without notice.

AEP, UK, RU

230 V AC, 50/60 Hz

AUS

240 V AC, 50 Hz

SP, SP6

230 – 240 V AC, 50/60 Hz

AEP, UK, AUS, 

190 W 

E51, MX, RU, AR

E51

120/220/240 V AC, 
50/60 Hz

M

AR

X

1

220-230V AC, 50/60 Hz

27 V AC, 60 Hz

SP, SP6

170 W

(K780)

7.8 kg

(K680)

Inputs (Analog)

Inputs (Digital)

Outputs (Analog)

SA-CD/CD, 
VIDEO 1, 2, DVD

Sensitivity: 800 mV
Impedance: 50 kohms

DVD (Coaxial)

Sensitivity: –
Impedance: 75 ohms

VIDEO 1

(VIDEO 1 is only K780)

(only K780)

, 2 

(Optical)

Sensitivity: –
Impedance: –

SUB WOOFER

Voltage: 2 V
Impedance: 1 kohm

• Abbreviation

AR

: Argentina model

AUS

: Australian model

E51

: Chilean and Peruvian models

MX

: Mexican model

RU

: Russian model

SP

: Singapore model

SP6

: Singapore and Malaysia models

E51 model

2-661-458-2

[]

AR model

2-661-458-3

[]

MX model

2-661-458-4

[]

AEP, UK, RU models

2-662-452-0

[]

SP, SP6 models

2-662-452-1

[]

AUS model

2-662-452-2

[]