Sony STR-DE845 Service Manual page 2

FM tuner section
Tuning range 87.5 - 108.0 MHz
Antenna terminals
75 ohms, unbalanced
Mono: 18.3 dBf,
Sensitivity
2.2 µV/75 ohms
Stereo: 38.3 dBf,
22.5 µV/75 ohms
Usable sensitivity
11.2 dBf, 1 µV/75 ohms
S/N Mono: 76 dB
Stereo: 70 dB
Harmonic distortion at 1 kHz
Mono: 0.3%
Stereo: 0.5%
Separation 45 dB at 1 kHz
Frequency response
30 Hz – 15 kHz
+0.5/–2 dB
Selectivity 60 dB at 400 kHz
AM tuner section
Tuning range
Models of area code U, CA
With 10-kHz tuning
scale:
530 – 1710 kHz
With 9-kHz tuning
scale:
531 – 1710 kHz
Models of area code AU, CN, SP
With 9-kHz tuning
scale:
531 – 1602 kHz
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C during
repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering or
unsoldering.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH
MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS AP-
PEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
2
Downloaded from www.Manualslib.com
Models of area code E
With 10-kHz tuning
scale:
530 – 1610 kHz
With 9-kHz tuning
scale:
531 – 1602 kHz
Antenna Loop antenna
Usable sensitivity
50 dB/m (at 1,000 kHz
or 999 kHz)
S/N 54 dB (at 50 mV/m)
Harmonic distortion
0.5 % (50 mV/m,
400 kHz)
Selectivity At 9 kHz: 35 dB
At 10 kHz: 40 dB
6) You can change the AM tuning scale to
9 kHz y 10 kHz. After tuning in any AM
station, turn off the receiver. Hold down the
TUNING + button and press the ?/1 button.
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.
Video section
Inputs Video: 1 Vp-p 75 ohms
S-video:
Y: 1 Vp-p 75 ohms
6)
C: 0.286 Vp-p
75 ohms
6)
Outputs Video: 1 Vp-p 75 ohms
S-video:
Y: 1 Vp-p 75 ohms
C: 0.286 Vp-p
75 ohms
manuals search engine
General
System Tuner section:
PLL quartz-locked
6)
digital synthesizer
system
Preamplifier section:
6)
Low-noise NF type
equalizer
Power amplifier
section:
Pure-complementary
SEPP
Power requirements
Models of area code U,
CA
120 V AC, 60 Hz
Models of area code
CN, SP
220 – 230 V AC,
50/60 Hz
Models of area code AU
240 V AC, 50 Hz
Models of area code E
120/220/240 V AC,
50/60 Hz
Power consumption
Models of area code U
STR-DE945: 290 W
STR-DE845: 280 W
Models of area code CA
STR-DE945: 345 VA
STR-DE845: 335 VA
Models of area code
CN, SP
STR-DE845: 220 W
Models of area code AU
STR-DE845: 230 W
Models of area code E
STR-DE845: 320 W
• Abbreviation
AU : Australian model
CA : Canadian model
CN : Chinese model
ATTENTION AU COMPOSANT AYANT RAPPORT
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
AC outlets
Models of area code U,
CA
2 switched,
total 120 W/1A
Models of area code
AU, SP
1 switched,
total 100 W
Models of area code E,
CN
2 switched,
total 100 W
Dimensions 430 × 158 × 378 mm
(17 × 6 × 15 in.)
1
/
4
including projecting
parts and controls
Mass (Approx.)
10.3 kg (22 lb 12 oz)
Supplied accessories
• FM wire antenna (1)
• AM loop antenna (1)
• LR6 (size-AA) alkaline batteries (3)
Models of area code U, CA only
• Audio/video/control S
connecting cord (1)
• Control S connecting cord (1)
STR-DE945 only
• Remote commander RM-LJ304
(remote) (1)
STR-DE845 only
• Remote commander RM-LP204
(remote) (1)
Design and specifications are subject
to change without notice.
MY : Malaysia model
SP : Singapore model
U : US model
À LA SÉCURITÉ!