Sony SLV-SE220 Service Manual page 2

LINE-2 (DEC/EXT)LINE-3 (DEC/EXT)*!
21-pin
Video input: pin 20
Audio input: pins 2 and 6
~2 LINE-2 L-® R*?
VIDEO IN, phono jack (1)
Input signal: 1 Vp-p, 75 ohms,
unbalanced, sync negative
AUDIO IN, phono jack (2)
Input level: 327 mVrms
Input impedance: more than 47 kilohms
AUDIO (OUT/SORTIE) R/D L/G*3
Phono jack (2)
Rated output level: 327 mVrms
Load impedance: 47 kilohms
Output impedance: less than 10 kilohms
*' not available on SLV-SE620N
*. SLV-SE820N only
* not available on SLV-SE620N and
SE420K
General
Power requirements
220 - 240 V AC, 50 Hz
Power consumption
15 W (SLV-SE420K)
17 W (SLV-SE820N, SE720N, SX720N
and SE620N)
3 W (POWER SAVE is set to ON,
minimum)
Operating temperature
5°C to 40°C
Storage temperature
—20°C to 60°C
Dimensions including projecting parts and
controls (w/h/d)
Approx. 360 = 95 x 243 mm
(SLV-SE420K)
Approx. 430 x 96 x 242 mm
(SLV-SE720N, SX720N and SE620N)
Approx. 430 x 96 x 251 mm
(SLV-SE820N)
Mass
Approx. 2.8 kg (SLV-SE420K)
Approx. 3.1 kg (SLV-SE820N, SE720N,
SX720N and SE620N)
Supplied accessories
Remote commander (1)
R6 (size AA) batteries (2)
Aerial cable (1)
Design and specifications are subject to
change without notice.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 4 OR DOTTED LINE WITH
MARK 4. 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.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.
Check the area of your repair for unsoldered or poorly-soldered
connections. Check the entire board surface for solder splashes
and bridges.
Check the interboard wiring to ensure that no wires are "pinched"
or contact high-wattage resistors.
Look for unauthorized replacement parts, particularly transistors,
that were installed during a previous repair. Point them out to
the customer and recommend their replacement.
4.
Look for parts which, through functioning, show obvious signs
of deterioration. Point them out to the customer and recommend
their replacement.
Check the B+ voltage to see it is at the values specified.
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.