DOWNLOAD Sony KLV-52X200A / KLV-52X250A Service Manual ↓ Size: 11.52 MB | Pages: 127 in PDF or view online for FREE

GA Model

Display Unit
Power Requirements:

110–240 V AC, 50/60 Hz

Screen Size:

52 inches

Display Resolution:

1,920 dots (horizontal) 

× 1,080 lines (vertical)

Power Consumption:

330 W

Standby Power Consumption:

0.5 W

Dimensions (w 

× h × d):

Approx. 1415 

× 890 × 384 mm (with stand)

Approx. 1415 

× 827 × 123 mm (without stand)

Weight:

Approx. 54.5 kg (with stand)
Approx. 47.0 kg (without stand)

Panel System
LCD (Liquid Crystal Display) Panel

TV System
B/G, I, D/K, M

Color/Video System
PAL, SECAM, NTSC 3.58, NTSC4.43 (only Video In)

Antenna
75 ohm external terminal

Channel Coverage
   B/G

VHF: E2 to E12 / UHF: E21 to E69 /
CATV: S01 to S03, S1 to S41
VHF: 0 to 12, 5A, 9A / UHF: 28 to 69 /
CATV: S01 to S03, S1 to S44 (Australia only)
VHF: 1 to 11 / UHF: 21 to 69 /
CATV: S01 to S03, S1 to S41(New Zealand only)

   I

UHF: B21 to B69 / CATV: S01 to S03, S1 to S41

   D/K

VHF: C1 to C12, R1 to R12 /
UHF: C13 to C57, R21 to R60 /
CATV: S01 to S03, S1 to S41, Z1 to Z39

   M

VHF: A2 to A13 / UHF: A14 to A79 /
CATV: A-8 to A-2, A to W+4, W+6 to W+84

...

1, 2

Supported formats: 1080i, 720p, 576p, 576i, 480p, 480i
Y: 1 Vp-p, 75 ohms, 0.3V negative sync
P

B

/C

B

: 0.7 Vp-p, 75 ohms

P

R

/C

R

: 0.7 Vp-p, 75 ohms

S

1, 2

S video input (4-pin mini DIN)

t1, 2, 3

Video input (phono jack)

o1, 2, 3

Audio input (phono jacks)
500 mVrms
Impedance: 47 kilohms

KLV-52X200A/

52X250A

 (GA)     2

HDMI IN 1, 2

Video: 1080p, 1080i, 720p, 576p, 576i, 480p, 480i
Audio: Two channel linear PCM

32, 44.1 and 48 kHz, 16, 20 and 24 bits

Analog audio (phono jacks): 500 mVrms, Impedance

47 kilohms (HDMI IN 2 only)

T Video output (phono jack)

Audio output (phono jacks)

...

(RGB) PC IN
PC Input (D-sub 15-pin)
G: 0.7 Vp-p, 75 ohms, non Sync on Green
B: 0.7 Vp-p, 75 ohms
R: 0.7 Vp-p, 75 ohms
HD: 1-5 Vp-p
VD: 1-5 Vp-p

o PC IN

PC audio input (minijack)

i

 Headphones jack

Sound Output
11 W + 11 W

Optional Accessories
• Wall-Mount Bracket SU-WL51
• TV stand SU-FL61
• Color Variation Unit

CRU-52X1

Design and specifications are subject to change
without notice.

• This TV’s PC input does not support Sync on Green or Composite Sync.
• This TV’s PC input does not support interlaced signals.
• For the best picture quality, it is recommended to use the signals (boldfaced) in the above chart with a 60 Hz vertical frequency

from a personal computer. In plug and play, signals with a 60 Hz vertical frequency will be selected automatically.

VGA 

 

640 480 

37.5 

75 

VESA

 

720 400 

31.5 

70 

VGA-T

SVGA 

 

800 600 

46.9 

75 

VESA

XGA 

 

1024 768 

56.5 

70 

VESA

 

1024 768 60 

75 

VESA

WXGA 

KLV-52X200A/

52X250A

 (GA)     3

After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
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. Check that all control knobs, shields, covers, ground straps,

and mounting hardware have been replaced. Be absolutely cer-
tain that you have replaced all the insulators.

4. 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.

5. Look for parts which, though functioning, show obvious signs

of deterioration. Point them out to the customer and recom-
mend their replacement.

6. Check the line cords for cracks and abrasion. Recommend the

replacement of any such line cord to the customer.

7. Check the antenna terminals, metal trim, “metallized” knobs,

screws, and all other exposed metal parts for AC Leakage.
Check leakage as described right.

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” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOMs that are suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are suit-
able.  (See Fig. A)

Fig. A. Using an AC voltmeter to check AC leakage.

Ω

µF

!

KLV-52X200A/

52X250A

 (GA)     4

1-1. REAR COVER ASSY REMOVAL ...................... 1-1

1-2. STAND ASSY REMOVAL ................................... 1-2

1-3. SPEAKER REMOVAL ......................................... 1-2

1-4. H1 BOARD REMOVAL ....................................... 1-3

1-5. H2 BOARD REMOVAL ....................................... 1-3

1-6. G2 AND D4 BOARDS REMOVAL ..................... 1-4

1-7. D5 BOARD REMOVAL ....................................... 1-5

1-8. AG BOARD REMOVAL ...................................... 1-5

1-9. B2, FXE AND TUG BOARDS REMOVAL ........ 1-6

1-10. H3 AND H4 BOARDS REMOVAL ..................... 1-7

1-11. CHASSIS BRACKET ASSY REMOVAL ........... 1-7

1-12. LCD PANEL REMOVAL ..................................... 1-8

2-1. TROUBLE SHOOTING ........................................ 2-1

2-2. DIAGNOSIS MODE .............................................. 2-6

2-3. SERVICE MODE ................................................. 2-11

2-4. UPGRADE METHOD (MS DOWNLOAD) ....... 2-14

2-5. ADJUSTMENTS AFTER BOARD

REPLACEMENT ................................................. 2-16

2-5-1.

AD ADJUSTMENT ....................................... 2-16

2-5-2.

WB ADJUSTMENT ...................................... 2-19

3-1. BLOCK DIAGRAM .............................................. 3-1

3-2. FRAME DIAGRAM .............................................. 3-2

3-3. CIRCUIT BOARDS LOCATION ......................... 3-3

3-4. SCHEMATIC  DIAGRAMS  AND  PRINTED

WIRING  BOARDS ............................................... 3-3

(1)

Schematic Diagrams of AG Board .................. 3-4

(2)

Schematic Diagrams of B2 Board ................. 3-15

(3)

Schematic Diagram of D4 Board ................... 3-32

(4)

Schematic Diagram of D5 Board ................... 3-34

(5)

Schematic Diagrams of FXE Board .............. 3-36

(6)

Schematic Diagram of G2 Board ................... 3-45

(7)

Schematic Diagram of H1 Board .................. 3-47

(8)

Schematic Diagram of H2 Board .................. 3-48

(9)

Schematic Diagram of H3 Board .................. 3-50

(10) Schematic Diagram of H4 Board .................. 3-51

(11) Schematic Diagram of TUG Board ............... 3-52

3-5. SEMICONDUCTORS ......................................... 3-54

4-1. REAR COVER AND STAND ASSY ................... 4-2

4-2. ARM AND UNDER COVER ................................ 4-3

4-3. CHASSIS-1 ............................................................ 4-4

4-4. CHASSIS-2 ............................................................ 4-5

4-5. CHASSIS BRACKET ASSY AND SPEAKER .... 4-6

4-6. BEZEL ASSY AND LCD PANEL ....................... 4-7

4-7. PACKING MATERIALS ...................................... 4-8