Sony str k 70 p service manual

Page 1

STR-K870P

SERVICE MANUAL

Ver. 1.0 2005.02

- STR-K870P is the tuner and the amplifier
section in HT-DDW870.

US Model
Canadian Model
AEP Model

UK Model

E Model
Australian Model

Manufactured under license from Dolby Laboratories.

Dolby", Pro Logic" and the double-D symbol are trademarks of
Dolby Laboratories.

DTS and DTS Digital Surround" are registered trademarks of
Digital Theater Systems, Inc.

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:

(Models of area code US only)

With 6 ohm loads, both channels driven, from
120 , 20,000 HA: rated 60 watts per channel
minimum RMS power, with no more than 0.7%
total harmonic distortion from 250 milliwatls to
rated output.

Amplifier section
Power Output"
Models of urcti coda US, CND

((1 ohms l Lilz, TIID 0.7%)

FRONTZ: so W/ch
CENTER: 60 w
SURRZ, 60 W/ch
SURR BACKZI 60 w

((mhms 1 kHz, TIID 10%)

FRONTZ: 100 chh
CENTERZ: 100 w
SURRZ" 100 chh
SURR BACKZ», 100 w

Sony Corporation

9-879-448-01 _
2005315731 Allle Group
@2005 Published by Sony Engineering Corporation

MULICIS oltucti code AEP. UK. SP. E51. MX
(6 ohms l IdIL, TIID 0.7%)

FRONT: 60 W/ch
CENTER; (0 w
SURREI: 60 chh
SURR BACKEI: 60 w

(6 ohms 1 kHz. TI to 10%)
FRONT 100 W/ch
CENTER; 100 w
SURRBI: 100 W/ch
SURR 131x06); 100 w

Moduls ol' urcu coda AUS
(6 ohms 120111 e 20 kl IL, TI ID 0.09%)

FRONT: 50 W/ch
CENTERZ: 50 w
SURREI' 50 chh
SURR BAG-(3); 50 w

(6 ohms 1 kill, TIID 0.7%)

FRONT (70 W/ch
CENTER; 60 w
SURREI, 60 chh
SURR BACKEI: no w
(601nm 1 kHz. r111) 10%)
FRONT 100 W/ch
CENTER; 100 w
SURRZI: 100 W/ch
SURR BAG-(37: 100 w

- Continued on next page -

FM STEREO FM-AM RECEIVER
S O NY®

Page 2

STR-K870P

1) Mea. red under the followtng conditions: Video section
Area code Power requirements Inpulfi/OUIPUIS
us CND 120 V AC. 60 11; Wk": 1 V: 75 th
MX 127 V AC. 60 in General
AEP. UK, SP 230 v AC. 50 Ht Pow mlluimmcms
AUS E31 240 V AC 50 H Area code Power requirements
2) Depending on the sound field settings and the US CND 120 V AC 60 HZ
source, there may be no sound output. MX 127 V AC, 50 HZ
AEP. UK 230 V AC. 50/60 Ill
InPu15 SArCD/CD. MD/TAPE. Sensitivity: 800 mV SP 220 , 230 V AC,
DVD, VIDEO 1. Z. 3 Impedance: 50 k ohms 50/60 Hz
E51 120/220/240 V AC.
Inputs (Digital) 50/60 Hz

DVD (Coaxial) Sensitivity: ,
Impedance: 75 ohms

Power consumption
VIDEO 2, SArCD/CD Sensitivity ,

(Optical) Impedance. 7 Area code Power consumption
US 170 W
Outputs (Analog) CND 230 VA
MD/TAPE (OUT). Voltage: 800 mV AEP, UK. AUS, SP. MX. 190 W
VIDEO 1 (AUDIO OUT) Impedance: 10 k ohms E51
SUB WOOFER Voltage: V
Impedance: 1 k ohm Power consumption (during standby mode]
0.2 W
Reproduction frequency range: Dimensions (W/h/d) (Approx.)
28720000142 430x157.s><310mm

(17 X61/4 X 12 1/4 inches)
including protecting parts
and controls

Mass (Approx.) 8.0 kg (17 lb 11 oz)

Tone

Gain levels :6 dB, 1 dB step

. Abbreviation
AUS :Australian model

FM tuner section

Tuning range 37-5 . 108-0 MHZ CND - Canadian model

Antenna FM WW antenna E51 : Chilean and Peruvian models
Antenna termi als 75 ohms. unbalanced MX . Mexican model

Intcnnedialc frequency 10.7 MHz Sp . Singapore model

AM tuner section . .
Design and specrl'icauons are subyect to change

Tuning range without notice
Models of area code US, CND

with 1011-11 tuntng scale: 530 . 1,710 kHz
With (Md-12 tuning sca e: 531 . 1,710 km
Models of area code AEP. UK, SP. AUS
With 97kI-Iz tuning scale: 531 , 1,602 kHL
Models of area code E51

With 101111 tuning seine: 530 . 1,610 km
with girth tuning scale: 531 . 1,602 km
Models of area code MX

With IOrkI-IL tuning scale: 530 , 1,610 kHz
Antenna Loop antenna
Intermediate frequency 450 kHz

3) You can change the AM tunin IIC to 9 kHz or
10 kHz. After tuning in any AM station. tum ol'l'the
receiver. While holding down PRESET TUNING +
or TUNING +, press |/('). All preset stations will be
erased when you change the tuning scale. To reset
the scale to 10 kHz (or 9 kHL). repeat the procedure.