CPD-E250 - Sony Monitor Service Manual (repair manual). Page 13

All capacitors are in µF unless otherwise noted. pF : µµF 50WV or less 
are not indicated except for electrolytics and tantalums.
All electrolytics are in 50V unless otherwise specifi ed.
All resistors are in ohms.  k

Ω=1000Ω, MΩ=1000kΩ

Indication of resistance, which does not have one for rating 
electrical power, is as follows: Pitch : 5mm 

 

 

    Rating 

electrical 

power 

: 

1

/

 4 

W

1

/

 4 

W in resistance, 

1

/

10 

W and 

1

/

 8 

W in chip resistance.

 : nonfl ammable resistor.

: fusible resistor.

 : internal component.

 : panel designation and adjustment for repair.

 : earth ground
 : earth-chassis

All variable and adjustable resistors have characteristic curve B, unless 
otherwise noted.
Readings are taken with a color-bar signal input.
Readings are taken with a 10M

Ω digital multimeter.

Voltages are DC with respect to ground unless otherwise noted.
Voltage variations may be noted due to normal production tolerances.
All voltages are in V.
S : Measurement impossibillity.

: B+line.

: B-line  (Actual measured value may be different).

: signal path (RF).

!

!

Circled numbers are waveform references.

The components identifi ed by X in this basic schematic diagram 
have been carefully factory-selected for each set in order to 
satisfy regulations regarding X-ray radiation. Should replacement be 
necessary, replace only with the value originally used.

When replacing components identifi ed by Y, make the necessary 
adjustments as indicated.  If the results do not meet the specifi ed 
value, change the component identifi ed by X and repeat the 
adjustment until the specifi ed value is achieved. 
(Refer to Section 2: Safety Releated Adjustments.)
When replacing the parts listed in the table below, it is important to 
perform the related adjustments.

Part Replaced (    ) 

HV ADJ

RV501

Part Replaced (    ) 

D Board   

T501, IC501, RV501, R540,
R541, R542, R544, R564, R567,
R568, C532, C534, C539, C553,
C554, C555, C556, C558, C561

HV Regulator
Circuit

D Board   

T501, R510, R543, R547, R549,
R552, R595, D515, D517, C540,
C542, C544, IC607, IC901, C951  

HV HOLD
DOWN Circuit 

D Board   

T501, R545, R546, R548, R550,
R596, R934, C535, C541, IC605,
IC607, IC901  

Beam Current
Protector Circuit

H1 Board

A Board

D Board