Sony Trinitron PVM-14L4 Service Manual

Section 2
Set-up Adjustment
2-1. Equipment Required
+ Oscilloscope
Sony Tektronix 2465 or equivalent (with bandwidth of
350 MHz)
NISC/PAL/SECAM component signal generator
Sony Tektronix TG2000 +AVGI (option module}
+AWVG2 (option module) or equivalent
SDI signal generator
Sony Tektronix TSG-422
Monoscope signal generator
ShibaSoku TP22AX or equivalent
VG (programmable video signal generator)
VG814 or equivalent
Frequency counter
Advantest TR5821AK or equivalent
Digital VOM
Advantest TR6845 or equivalent
Slide induction transformer
High tension voltmeter
DC power supply
+ Ammeter
Luminance meter
Minolta CA-110 or equivalent.
If the Minolta CA-110 is not available, perform the
measurement by visual inspection by comparing the
monitor that has already been adjusted earlier with the
monitor that you want to adjust.
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Start the following adjustments after 5 minutes have
passed after the main power is turned on.
2-2. Preparations (1)
Service Mode
This set is provided with a switch for service on the front
panel that can be used to make various adjustments. The
operation method of this switch is explained in detail
below.
1. Entering the service mode
Press the [MENU] key and Simultaneously press the
[ENTER] key.and the [DEGAUSS] key shown on the
display of the menu.
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2. Service mode display
(4) The service items are largely classified into 16 types
displayed by titles.
(2) The names of the service items or READ/WRITE
guidance, etc., are displayed. The names are displayed
to the left and the guidance to the right.
(3) This is the serial number for each of the service items.
1-120.
(4) This is the adjustment data for the service items that are
now stored in the RAM, Adjustments can be made by
changing these values, but as long as nothing is written
to the ROM the adjustment values will be erased by
turning off the power or by reading, so please be careful.
When the adjustment data that is now displayed is
identical with the data in the ROM, the cursor (>) is
displayed,
(6) The present status is displayed.
[x] : Writing to the ROM. Make sure not to turn off
the power while this display is on.
[2]: ROM reading error. In this case, an image is
output with the standard adjustment data that the
microcomputer itself possesses.
{z] : Problem in the PC bus.
3. Finishing the service mode
Simultaneously press the [ENTER] key and the
[DEGAUSS] key shown on the display of the menu,
4, Easy ON/OFF of the service mode
If once entering the service mode after having turned.
on the power, easy ON/OFF is possible by once more
pressing the A, B or C switch on the front panel (the
LED lights) as long as the power is not turned off or as
long as the service mode is not finished.
5. Change of position of the service mode display
If the switch is continuously pressed when turning on
in the above easy mode, the display position moves in
the V direction. This method is used when the display
is outside of the effective screen area.
6. Change of service items
The items are returned with the [MENU] key and
forwarded with the [ENTER] key. When a key is
continuously pressed, the operation will be repeated.
7. Change of service data
The service data is made larger with the [T] key and
smaller with the [1] key. When continuously pressing
the keys, the operation will be repeated.
(5)
2-4

Sony Trinitron PVM-14L4 Specifications

General

Brand	Sony
Model	Trinitron PVM-14L4
Category	Monitor
Language	English