DOWNLOAD Sony KP-51WS500 / KP-57WS500 / KP-65WS500 Service Manual ↓ Size: 9.74 MB | Pages: 127 in PDF or view online for FREE

120V AC, 60Hz 
 

 

230W
Under 1 W

DVI-HDTV
1 terminal, 3.3V T.M.D.S., 50 ohms
The DVI-HDTV input terminal is compliant with the EIA-861 
standard and is not intended for use with personal computers.

Video (IN)
4 total (1 on front panel) 
1Vp-p, 75ohms unbalanced, sync negative 

S Video (IN)
3 total (1 on front panel) 
Y: 1Vp-p, 75ohms unbalanced, sync negative 
C: 0.286Vp-p (Burst signal), 75ohms

Audio (IN)
6 total (1 on front panel)
500 mVrms (100% modulation)
Impedance:47 kilo ohms

 

3 picture tubes, 3 lenses, horizontal in-line system

 

7-inch high-brightness monochrome tubes (6.3 raster size), 

 

with optical coupling and liquid cooling system.

 

High performance, large diameter hybrid lens F1.1

  75 ohm external terminal for VHF/UHF

  NTSC, American TV Standard

VHF: 2-13/ VHF: 14-69/ CATV: 1-125

Remote Control RM-Y909
Batteries (2) size AA (R6)

A/V Cable (VMC-810/820/830 HG)
Audio Cable (RKC-515HG)
Component Video Cable (VMC-10/30 HG)
Control S Cable (RK-G69HG)
AV Receiver (STR-V555ES or equivalent)

Audio (VAR/RIX)
1 total 
500 mVrms at the maximum volume setting (Variable)
500 mVrms (Fixed)
Impedance (Output):1 kilo ohm

TV Out
1 total 
Video: 1 Vp-p 75 ohms unbalanced, Sync negative
Audio: 500 m Vrms (100% modulation)
Impedance (output): 1 kilo ohms 

Control S (IN/OUT)
1 total 
Minijacks

Component Video Input
2 (Y, PB, PR)
Y: 1.0 Vp-p, 75 ohms unbalanced, sync negative 
PB: 0.7 Vp-p, 75 ohms;
PR: 0.7 Vp-p, 75 ohms 

RF Inputs
2 total 

Converter
1 total 

 

 

20W x 2  

 1194 x 1310 x 630 mm 

1326 x 1377 x 690 mm 

1542 x 1452 x 735 mm

  47

1/8

 x 51

5/8

 x 24

7/8

 in 

52

1/4

 x 54

1/4

 x 27

1/4

 in 

61 x 57 x 29 in

 

76 kg 

89 kg 

125 kg

 

167 lbs 9 oz 

196 lbs 3 oz 

275 lbs 8 oz

Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield, or carbon painted on the CRT, 
after removing the anode.

An isolation transformer should be used during any service to avoid possible shock hazard, because of live chassis. The chassis of 
this receiver is directly connected to the ac power line.

!

 

Components identifi ed by shading and ! mark on the schematic diagrams, exploded views, and in the parts list are critical for 
safe operation. Replace these components with Sony parts whose part numbers appear as shown in this manual or in supplements 
published by Sony. Circuit adjustments that are critical for safe operation are identifi ed in this manual. Follow these procedures 
whenever critical components are replaced or improper operation is suspected. 

Apres avoir deconnecte le cap de l’anode, court-circuiter l’anode du tube cathodique et celui de l’anode du cap au chassis metallique 
de l’appareil, ou la couche de carbone peinte sur le tube cathodique ou au blindage du tube cathodique.

Afi n d’eviter tout risque d’electrocution provenant d’un chássis sous tension, un transformateur d’isolement doit etre utilisé lors de tout 
dépannage. Le chássis de ce récepteur est directement raccordé à l’alimentation du secteur.

! 

Les composants identifi es par une trame et par une marque ! sur les schemas de principe, les vues explosees et les listes de 
pieces sont d’une importance critique pour la securite du fonctionnement. Ne les remplacer que par des composants Sony dont 
le numero de piece est indique dans le present manuel ou dans des supplements publies par Sony. Les reglages de circuit dont 
l’importance est critique pour la securite du fonctionnement sont identifi es dans le present manuel. Suivre ces procedures lors de 
chaque remplacement de composants critiques, ou lorsqu’un mauvais fonctionnement suspecte.

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 soldered 

connections. Check the entire board surface for solder splashes and 
bridges.

2.  Check the interboard wiring to ensure that no wires are “pinched” or 

touching high-wattage resistors.

3.  Check that all control knobs, shields, covers, ground straps, and 

mounting hardware have been replaced. Be absolutely certain that 
you have replaced all the insulators.

4.  Look for unauthorized replacement parts, particularly transistors, 

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 recommend 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 B+ and HV to see if they are specifi ed values. Make sure 

your instruments are accurate; be suspicious of your HV meter if sets 
always have low HV.

8.  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 
instructions.

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’s 250 and Sanwa SH-63TRD are examples of passive 
VOMs that are suitable. Nearly all battery-operated digital multimeters 
that have a 2 VAC range are suitable (see Figure A).

How to Find a Good Earth Ground
A cold-water pipe is a guaranteed earth ground; the cover-plate retaining 
screw on most AC outlet boxes is also at earth ground. If the retaining 
screw is to be used as your earth ground, verify that it is at ground 
by measuring the resistance between it and a cold-water pipe with an 
ohmmeter. The reading should be zero ohms.

If a cold-water pipe is not accessible, connect a 60- to 100-watt trouble- 
light (not a neon lamp) between the hot side of the receptacle and the 
retaining screw. Try both slots, if necessary, to locate the hot side on the 
line; the lamp should light at normal brilliance if the screw is at ground 
potential (see Figure B).

Trouble Light

AC Outlet Box

Ohmmeter

Cold-water Pipe

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

Figure B. Checking for earth ground.

To Exposed Metal
 Parts on Set

AC Voltmeter
(0.75 V)

Earth Ground

0.15 

µ

F

1.5 

k

Ω

The units in this manual contain a self-diagnostic function. If an error occurs, the STANDBY/TIMER LED will automatically begin to fl ash. The number 
of times the LED fl ashes translates to a probable source of the problem. A defi nition of the STANDBY/TIMER LED fl ash indicators is listed in the 
instruction manual for the user’s knowledge and reference. If an error symptom cannot be reproduced, the Remote Commander can be used to review 
the failure occurrence data stored in memory to reveal past problems and how often these problems occur.

Diagnostic Test Indicators
When an error occurs, the STANDBY/TIMER LED will fl ash a set number of times to indicate the possible cause of the problem. If there is more than 
one error, the LED will identify the fi rst of the problem areas.

Results for all of the following diagnostic items are displayed on screen. If the screen displays a “0”, no error has occurred.

Power does not turn on

Does not light

•

Power cord is not plugged in.

•

Fuse is burned out (F6001). (G Board)

•

Power does not come on.

•

No power is supplied to the TV.

•

AC Power supply is faulty.

+B overcurrent (OCP)*

2 times

•

H.OUT (Q8024) is shorted. (D Board)

•

+B PWM (Q8035, Q8038) is shorted.
(D Board)

•

Power does not come on.

•

Load on power line shorted.

+B overvoltage (OVP)

3 times

•

IC501 is faulty. (G Board)

•

IC5002 is faulty. (G Board)

•

Has entered standby mode.

Vertical deflection stopped

4 times

•

±

15V is not supplied. (D Board)

•

IC8003 is faulty. (A Board)

•

Has entered standby state after
horizontal raster.

•

Vertical deflection pulse is
stopped.

•

Power line is shorted, or
power supply is stopped.

White Balance Failure
(Not Balanced)

5 times

•

Video OUT (IC7101, IC7201, IC7301)
is faulty. (CR, CG, CB Board

s)

•

CRT drive (IC309) is faulty. (A Board)

•

Screen (G2) is improperly adjusted. **

•

No raster is generated.

•

CRT Cathode current detection
reference pulse output is small.

Low B OCP/OVP
(Overcurrent/Overvoltage) ***

6 times

•

+5 line is overloaded. (A, B Boards)

•

+5 line is shorted. (A, B Boards)

•

No picture

Horizontal deflection stopped

7 times

•

Q8035, Q8038 is shorted. (D Board)

High-voltage error

8 times

•

T8005 is faulty. (D Board)

Audio error

9 times

• ±

19V line is shorted. (A, B Boards)

•

IC708 is faulty. (A Board)

•

PS701 or PS702 is opened.
(A Board)

•

No sound

*

Ifa +B overcurrent is detected, stoppage ofthe vertical deflection is detected simultaneously. The symptom that is diagnosed
first by the microcontroller is displayed on the screen.

**

Refer to Screen (G2) Adjustments in Section 2-

2 ofthis manual

***

If TIMER or STAND BY indicator blinks six (6) times, unplug the unit and wait 10 minutes before performing the adjustment.