Convergence Adjustment - Pioneer SD-533HD5 Training Manual

5

CONVERGENCE ADJUSTMENT

1. Procedures
1. When replacinf the DIGITAL CONV. Assy, replace the
EEPROM of new DIGITAL CONV. Assy with the EEPROM
of old DIGITAL CONV. Assy.
2. Check the initial data for the convergence adjustment.
3. Perform the coarse adjustment for the green to roughly correct
distortion of the green.
4. Fine-adjust the green to eliminate any distortion. The green
becomes the standard for the red and the blue.
If necessary, repeat steps 3 and 4. Green adjustment is
completed.
5. Perform the coarse adjustment for the red by roughly
converging the red with the green.
6. Fine-adjust the red until the red is completely converging with
the green.
If necessary, repeat steps 5 and 6. Red adjustment is completed.
7. Perform the coarse adjustment for the blue by roughly
converging the blue with the green.
8. Fine-adjust the blue until the blue is completely converging
with the green.
If necessary, repeat steps 7 and 8. Blue adjustment is
completed.
9. Display the green, red, and blue colors at the same time to check
the convergence. Readjust the convergence if necessary.
2. Prior to Adjustment
There are five screen modes, and convergence adjustment is
required for each mode. For adjustment, input the following
video signal:
Table 1 Input signal
Screen Mode Input Signal
1. FULL (FULL, 4:3 NORMAL)
2. ZOOM (ZOOM) NTSC (480i) signal
3 CINEMA (CINEMA WIDE)
4. NATURAL (NATURAL WIDE)
5. FULL for HD (HD/DTV) HD/DTV (1080i) signal
NTSC : Stable signal source, such as an SG or an LD/DVD player.
HD : Stable signal source, such as an HD SG or a DTV tuner
(SH-D09, etc.)
When CRTs are replaced or when the deflection yoke is moved,
perform the deflection yoke adjustment, horizontal and vertical
size adjustments, and centering magnet adjustments before the
convergence adjustment. (See Pages 116, 118 and 119.)
3. Convergence Adjustment
3.1 Replacement of the EEPROMs Inside
the DIGITAL CONV. Assy
IC1203: 24LC128(I)P
IC1203
CN1201 CN1202
DIGITAL CONV. ASSY
The data stored in the EEPROMs are as follows:
IC1203
OFFSET CONVER. MODE 1 (DFH, DFV)
OFFSET CONVER. MODE 3
Factory-preset values for convergence
User-adjusted values for convergence (CENTER, MULTI-POINT)
IC1402
OFFSET CONVER. MODE 1 (except DFH and DFV)
OFFSET CONVER. MODE 2
3.2 Confirmation of Convergence Data
The convergence coarse adjustment modes change cyclically, as
shown below, with each press of the INPUT4 key in FACTORY
mode:
Convergence coarse adjustment
INPUT 4 key (pressed once) : OFFSET CONVER. MODE 1
INPUT 4 key (pressed twice) : OFFSET CONVER. MODE 2
INPUT 4 key (pressed three times) : OFFSET CONVER. MODE 3
Cyclical change
Check whether the data of MODE 1 and MODE 2 are as shown in
Table 2.
The cross-hatch signal is generated inside the unit, and is auto-
matically displayed in OFFSET CONVER. mode and MANUAL
CONVERGENCE mode. You can turn on and off the cross-hatch
signal with the YELLOW key.
Screen indication
DFH
F 0F0
A B C
A
Screen mode:
F : FULL Z : ZOOM C : CINEMA
N : NATURAL H : FULL for HD
The Screen modes change cyclically with each press of the
SCREEN mode key.
B
Adjustment items can be selected with the numeric keys.
See Table 2.
C
Adjustment data:
MAX 1FF
100
001
CNT 000
3FF
2FF
MIN 200
Data can be adjusted with the VOL+ and VOL- keys.
IC1402: 24LC08B(I)P
IC1401
VIDEO IP
PD5689A9
SERVICE ASSY
IC1402
37.