SLV-ED22KR, SLV-ED22PL, SLV-ED22TW, SLV-ED55KR, SLV-ED55PL, SLV-ED88TW, SLV-ED99KR, SLV-ED99PL, SLV-ED99TW - Sony VCR Service Manual (repair manual). Page 2

Read Sony SLV-ED22KR / SLV-ED22PL / SLV-ED22TW / SLV-ED55KR / SLV-ED55PL / SLV-ED88TW / SLV-ED99KR / SLV-ED99PL / SLV-ED99TW Service Manual online

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SAFETY CHECK-OUT
1. Check the area of your repair for unsoldered or poorly-sol-
dered connections.  Check the entire board surface for solder
splashes and bridges.
2. Check the interboard wiring to ensure that no wires are
“pinched” or contact high-wattage resistors.
3. Look for unauthorized replacement parts, particularly transis-
tors, that were installed during a previous repair.  Point them
out to the customer and recommend their replacement.
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer:
4. Look for parts which, though functioning, show obvious signs
of deterioration.  Point them out to the customer and recom-
mend their replacement.
5. Check the B+ voltage to see it is at the values specified.
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  PUB-
LISHED  BY  SONY.
SLV-ED22/ED55:
LINE-1 IN
VIDEO IN, phono jack (1)
Input  signal: 1 Vp-p, 75 ohms, unbalanced,
sync negative
AUDIO IN, phono  jack  (1)
Input level: 327 mVrms
Input impedance: more than 47 kilohms
LINE-2 IN (SLV-ED55)
 
VIDEO IN, phono  jack (1)
Input signal:  1 Vp-p, 75 ohms,  unbalanced,
sync negative
AUDIO IN (MONO), phono  jack  (2)
Input level: 327 mVrms
Input impedance: more than 47 kilohms
LINE-1 OUT
VIDEO OUT, phono jack (1)
Output signal: 1 Vp-p, 75 ohms, unbalanced,
sync negative
AUDIO OUT, phono  jack  (1)
Standard output: 327 mVrms
Load impedance: 47 kilohms
Output impedance: less than 10 kilohms
Timer section 
Clock
Quartz locked
Timer indication
12-hour cycle
Timer setting
8 programs per month (max.)  
Power back-up
Built-in self-charging capacitor
Back-up duration: up to 8 hours at a time
General
Power requir ements
110 - 240 V AC, 50/60 Hz 
(SLV-ED22PL/ED55PL/ED99PL) 
100 V AC, 60 Hz
(SLV-ED22TW/ED88TW/ED99TW)
110 - 220 V AC, 60 Hz
(SLV-ED22KR/ED55KR/ED99KR)
Power consumption
21 W (SLV-ED99KR)
17 W (SLV-ED99PL)
15 W (SLV-ED22: KR, PL/ED55/ED88/ED99TW)
14 W (SLV-ED22TW)
Operating temperature
5
°
C to 40
°
C
Storage temperature
–20
°
C to 60
°
C
Dimensions
Approx. 430 
×
 97 
×
 288  mm  (w/h/d)
including projecting parts and controls
Mass
Approx. 4.1 kg
Supplied accessories
Remote commander  (1) 
Size  AA (R6) batteries (2)
75-ohm coaxial cable with F-type connectors (1) 
Plug  adaptor (1) (SLV-ED22PL/ED55PL/ED99PL)
Design and specifications are subject to change
without notice.
LINE-2 OUT
AUDIO OUT, phono  jack  (2)
Standard output: 327 mVrms
Load impedance: 47 kilohms
Output impedance: less than 10 kilohms
SLV-ED88:
LINE-1 IN
VIDEO IN, phono jack (1)
Input signal: 1 Vp-p, 75 ohms, unbalanced,
sync negative
AUDIO IN, phono jack (2 each)
Input level: 327 mVrms
Input impedance: more than 47 kilohms
LINE-1 OUT
VIDEO OUT, phono jack (1)
Output signal: 1 Vp-p, 75 ohms, unbalanced,
sync negative
AUDIO OUT, phono  jack  (2)
Standard output: 327 mVrms
Load impedance: 47 kilohms
Output impedance: less than 10 kilohms
LINE-2 OUT
AUDIO OUT, phono  jack  (2)
Standard output: 327 mVrms
Load impedance: 47 kilohms
Output impedance: less than 10 kilohms
LINE-1 OUT
VIDEO OUT, phono jack (1)
Output signal: 1 Vp-p, 75 ohms, unbalanced,
sync negative
AUDIO OUT, phono  jack  (2)
Standard output: 327 mVrms
Load impedance: 47 kilohms
Output impedance: less than 10 kilohms
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