Sony trinitron kv-29sl40c Manual De Usuario

A

The following adjustments should always be performed when

replacing the following components which are marked with 

] on

the schematic diagram:

DY, C511,C572, C573, C574, C575, D573, D574, R582, R583
R585, R586, R578, R579, T504, IC301, IC521, IC603, C507,
C508, C509, C515, C520, L591,L501

Using Variac, apply AC input voltage: 120+2VAC
(or 220 + 2 VAC for KV-29SL40A/29SL40C
29SL65C/29XT11A  ONLY)

1)

Turn the POWER switch ON.

2)

Input a white signal and set the PICTURE and BRIGHT
controls to maximum.

3)

Confirm that the voltage between C574 (+) or TP503 and
ground is more than: 105VDC.

1)

Connect the current meter between Pin 11 of the FBT
(T504) and the PCB land where Pin 

11

 would normally

attach. (see figure 1.0 on next page)

2)

Input a dot signal and set PICTURE and BRIGHTNESS to
minimum: IABL = 100+100

µ

A

3)

Confirm the voltage of A board TP-600 is 135 

±

 3VDC

4)

Connect the Digital Voltmeter and the DC power supply
via diode 1SS119 to C574 (+).  (See figure 1.0 on next
page.)

5)

Increase the DC power voltage gradually until the picture blanks out.

6)

Turn DC power source off immediately.

7)

Read the digital voltmeter indication.

STANDARD
Less than or equal to:

141.3 VDC

8)

Input a white signal and set PICTURE and BRIGHTNESS
to maximum:   

IABL = 1750+100

µ

A

9)

Repeat steps from (4) to (7).

STANDARD
Less than or equal to:

141.3 VDC

The following adjustments should always be performed

           when replacing the following components which are marked

           with 

] on the schematic diagram:

IC603, IC601, R699

1)

Using Variac, apply AC input voltage: 130 + 2.0 VAC
(or 220.0 

±

 2.0 VAC for KV-29SL40A/29SL40C/

29SL65C/29XT11A only).

2)

Input a dot signal.

3)

Set the PICTURE control and the BRIGHT control to

minimum.

4)

Set to service adjustment mode.

5)

Select PADJ with 

 and 

 .

6)

Adjust with   to the 0 level.

7)

Confirm the voltage of A BOARD TP-600 is less than

138 VDC.

8)

If step 7 is not satisfied, replace the components, repeat the

above steps.

9)

Adjust with   and 

 for:

135 

±

 3 VDC

10) Write into the memory by pressing 

 then

.

If the current setting indicated in step 2-2 cannot be met,

readjustment should be performed by altering the resistance value

of R584, a component marked with 

.

+

I  ABL

ABL

T504

FBT

range

-

ammeter

3.0 mA DC

A

4. ba4 (2) safety adjustment

6/6/98, 4:31 PM

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