Download
 Share
 Print this page
  1. Manuals
  2. Brands
  3. Sony Manuals
  4. Monitor
  5. Trinitron PVM-14M2U
  6. Service manual

Safety Related Adjustment - Sony TRINITRON PVM-14M2U Service Manual

Color video monito.
Hide thumbs
  • Contents

Advertisement

Table of Contents
SECTION 4
SAFETY RELATED ADJUSTMENT
When the parts (with
aB
,Ci
mark on the circuit diagram) shown
below are replaced, confirm the matters described in items 4-1 and
4-2 shown below.
BR1536
Ci
R551, R506, R519, R518, R516, R515, R508, R517, R1560,
Rl537, C549, C512, C513, C523, C592, D501, D533, QSOO,
Q511, IC500, and IC507
When the following parts are replaced, check the +B voltage:
IC600, IC602, D610, C615, C631, C621, C632, and T603
Confirmation procedure
I. Input 120 VAC.
2. Input a monoscope signal, and minimize CONTRAST and
BRIGHT.
3. Check that the voltage of the CN605
©
pin is 115.7 VDC.
4-1. CONFIRAMATION OF +B MAXIMUM
Standard : Less than115.7 VDC(CN605 pin
©)
Check Condition Input voltage: 130 VAC
Note: Use NF Power Supply or make sure that distortion factor is
3% or less.
Input signal : Monoscope
Controls : BRT & CONT
➔
Normal
4-2. CONFIRAMATION OF HOLD-DOWN CIRCUIT
Check Condition Input voltage : 130 VAC
Input signal : White &Dot
Controls : BRT & Cont
➔
Max. & Min.
4-2-1.Hold-Down Circuit (+B)
a) Adjust the beam current to 600±50µA with the pin
©
of CN605
with the external DC power supply (less than 127 .0 VDC)to the
point just before the hold-down circuit works.
Input Signal : White
b) Adjust the beam current to 80±20µA with the pin
©
of CN605
with the external DC power supply (less than 127 .0 VDC)to the
point just before the hold-down circuit works.
Input Signal : Dot
4-2-2. Hold-Down Circuit (3rd Wire voltage of FBT)
Check item : Check of pin
®
ofIC500 voltage : more than 110.0VDC
a) Adjust the beam current to 600±50µA with the pin
®
of IC500
with the external DC power supply (less than 141.0 VDC)to the
point just before the hold-down circuit works.
Input Signal : White
- b) Adjust the beam current to 80±20µA with the pin
®
of IC500
with the external DC power supply (less than 141.0 VDC)to the
point just before the hold-down circuit works.
Input Signal : Dot
-25-

Advertisement

Table of Contents

   Also See for Sony TRINITRON PVM-14M2U

Sony Trinitron PVM-20M4A Operating Instructions Manual
Sony Trinitron PVM-20M4A Operating Instructions Manual 56 pages

   Related Manuals for Sony TRINITRON PVM-14M2U

   Related Content for Sony TRINITRON PVM-14M2U

This manual is also suitable for:

Hr trinitron pvm-14m4uTrinitron pvm-14m2aTrinitron pvm-14m2eHr trinitron pvm-14m4eTrinitron pvm-14m4a

Comments to this Manuals

Symbols: 0
Latest comments: