Horizontal Deflection System Adjustment; (Rv508, Rv509, Rv511, Rv514, Rv515, And Rv801/P Board); Under Scan Adjustment (Rv517, Rv512); Horizontal/Vertical Delay Adjustment (Rv832, Rv831) - Sony TRINITRON PVM-8042Q Service Manual

5-1-6. Horizontal Deflection System Adjustment

(RV508, RV509, RV511, RV514, RV515,
and RV801/P Board)
Input signal: Monoscope signal
UNDER SCAN 8 Pull (OFF)
Switches:
16 : 9
Controls: BRIGHT
CONTR
1. Adjust the horizontal position with RV801 (H.CENT).
2. Adjust RV511 (H.SIZE) so that the horizontal size of
monoscope signal on the CRT screen is 16 frames.
16 frames
3. While adjusting vertical angular and bow distortions
with RV514 (V.ANG) and RV515 (BOW), adjust
RV509 (PIN AMP) and RV508 (PIN PHASE) so that
the vertical lines become straight.
V.ANGLE (RV514)
BOW (RV515)
PIN AMP (RV509)
PIN PHASE (RV508)
4. Adjust RV511 (H.SIZE) so that the horizontal size of
monoscope signal on the CRT screen is 16 frames.
MIC
S Chassis
8 Pull (4 : 3)
8 50 % (Center click)
8 70 %

5-1-7. Under Scan Adjustment (RV517, RV512)

Input signal: Monoscope signal
UNDER SCAN 8 Push (ON)
Switches:
16 : 9
Controls: BRIGHT
CONTR
1. Adjust the horizontal size and vertical size with RV517
(U/V.SIZE) and RV512 (U/H.SIZE) as shown below.
Note: Be careful not to wane four corners.
Monoscope
under scan
area
6 ±1 mm
Screen
center
5-1-8. Horizontal/Vertical Delay Adjustment
(RV832, RV831)
Input signal: Monoscope signal
Switches: UNDER SCAN 8 Push (ON)
16 : 9
Controls: BRIGHT
CONTR
1. Connect an oscilloscope to pin 4 of IC831.
2. Horizontal Delay Adjustment (RV832)
Adjust the pulse width with RV832 as shown below.
IC831
PIN-4
41 ±1 uSec
3. Connect an oscilloscope to pin 9 of IC831.
4. Vertical Delay Adjustment (RV831)
Adjust the pulse width with RV831 as shown below.
IC831
PIN-9
8.0 ±0.4 mSec
8 Pull (4 : 3)
8 50 % (Center click)
8 70 %
Screen center
4 ±1 mm
6 ±1 mm
8 Pull (4 : 3)
8 50 % (Center click)
8 70 %
5-3