STR-DH810 - Sony Audio Service Manual (repair manual). Page 2

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STR-DH810
2
NOTES  ON  CHIP  COMPONENT  REPLACEMENT
• 
Never reuse a disconnected chip component.
• 
Notice that the minus side of a tantalum capacitor may be 
damaged by heat.
SAFETY  CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, 
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE  TEST
The AC leakage from any exposed metal part to earth ground and 
from all exposed metal parts to any exposed metal part having a 
return to chassis, must not exceed 0.5 mA (500 microamperes.). 
Leakage current can be measured by any one of three methods.
1.  A commercial leakage tester, such as the Simpson 229 or RCA 
WT-540A. Follow the manufacturers’ instructions to use these 
instruments.
2.  A battery-operated AC milliammeter. The Data Precision 245 
digital multimeter is suitable for this job.
3.  Measuring the voltage drop across a resistor by means of a 
VOM or battery-operated AC voltmeter. The “limit” indication 
is 0.75 V, so analog meters must have an accurate low-voltage 
scale. The Simpson 250 and Sanwa SH-63Trd are examples 
of a passive VOM that is suitable. Nearly all battery operated 
digital multimeters that have a 2 V AC range are suitable. (See 
Fig. A)
1.5 k
Ω
0.15 
μF
AC 
voltmeter 
(0.75 V) 
To Exposed Metal 
Parts on Set 
Earth Ground
Fig. A.  Using an AC voltmeter to check AC leakage.
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  APPEAR  AS  SHOWN  IN  THIS  
MANUAL  OR  IN  SUPPLEMENTS  PUBLISHED  BY  SONY.
About area codes
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”.
IN 1
TV OUT
ARC
BLE (INPUT ONLY)
L
R
L
R
SURROUND
FRONT A
4-XXX-XXX-XX(X) AA
Area code
Video section
Inputs/Outputs
  Video: 
1 Vp-p, 75 ohms
  COMPONENT VIDEO:
   
Y: 1 Vp-p, 75 ohms
  
P
B
/C
B
: 0.7 Vp-p, 75 ohms
  
P
R
/C
R
: 0.7 Vp-p, 75 ohms
   
80 MHz HD Pass Through
General 
Power requirements
Area code
Power requirements
AEP, UK
230 V AC, 50/60 Hz
US
120 V AC, 60 Hz
AUS
230 V AC, 50 Hz
Power output (DIGITAL MEDIA PORT)
  DC OUT: 
5V, 0.7 A MAX 
Power consumption
Area code
Power consumption
AEP, UK, US, AUS 240 W
Dimensions (width/height/depth) (Approx.)
   
430 mm × 157.5 mm ×
322 mm (17 in × 6 1/4 in ×
12 3/4 in) including projecting 
parts and controls
Mass (Approx.)
  Models of area code AEP, UK, AUS
   
8.2 kg (18 lb 2 oz)
  Models of area code US
   
7.9 kg (17 lb 7 oz)
Supplied accessories
•  Operating instructions
•  Quick Setup Guide
•  FM wire antenna (aerial) (1)
•  AM loop antenna (aerial) (1)
•  Remote commander (1)
  -  RM-AAP049 (Models of area code US only)
  -  RM-AAP050 (Models of area code AEP, UK, 
AUS only)
•  R6 (size-AA) batteries (2)
•  Optimizer microphone (ECM-AC2) (1)
Design and specifi cations are subject to change 
without notice.
•  Standby power consumption: 0.3 W
• Halogenated fl ame retardants are not used in the 
certain printed wiring boards.
Ver. 1.1
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