Sony KV-PG14N70 Service Manual ▷ View online
– 16 –
KV-PG14N70
RM-915
3-3. FOCUS ADJUSTMENT
FOCUS adjustment should be completed before W/B adjustment.
1. Receive digital monoscope pattern.
2. Set "Picture Mode" to "DYNAMIC".
3. Adjust focus VR so that the center of screen becomes
1. Receive digital monoscope pattern.
2. Set "Picture Mode" to "DYNAMIC".
3. Adjust focus VR so that the center of screen becomes
just focus.
4. Change the receiving signal to white pattern and blue back.
5. Confirm magenta ring is not noticeable. Incase magenta is
5. Confirm magenta ring is not noticeable. Incase magenta is
very obvious, adjust focus VR to take balance of magenta
ring and focus.
ring and focus.
3-4. G2 (SCREEN) AND WHITE BALANCE
ADJUSTMENTS
1.
G2 (SCREEN) ADJUSTMENT
1) Set the PICTURE to normal.
2) Put to VIDEO input mode without signals.
3) Connect R, G and B of the C board cathode to the
2) Put to VIDEO input mode without signals.
3) Connect R, G and B of the C board cathode to the
oscilloscope.
4) Adjust BRIGHTNESS to obtain the cathode voltage to the
value below.
5) Adjust G2 (screen) on the FBT until picture shows the point
before cut off.
0 V
Cathode setting voltage:
175 V
± 2 (VDC)
2.a) WHITE BALANCE ADJUSTMENT
1) Set to Service Mode (Refer Section 4-1: ADJUSTMENTS
1) Set to Service Mode (Refer Section 4-1: ADJUSTMENTS
WITH COMMANDER).
2) Input white raster signal.
3) Set 49 (ABL) and IF (VP2) service mode to 00.
4) Set Picture to DYNAMIC.
5) Select OB (RDR) with [1] and [4], and set the level to 25
3) Set 49 (ABL) and IF (VP2) service mode to 00.
4) Set Picture to DYNAMIC.
5) Select OB (RDR) with [1] and [4], and set the level to 25
with [3] and [6] for best white balance.
6) Select OC 'GDR' and OD 'BDR' with [1] and [4], and adjust
the level with [3] and [6] for the best white balance.
7) Write into the memory by pressing [MUTING] then [0].
8) Set back 49 'ABL' and IF 'VP2' service mode to original data.
8) Set back 49 'ABL' and IF 'VP2' service mode to original data.
2.b) SUB BRIGHT ADJUSTMENT
1) Set to service mode.
2) Set 49(ABL) and IF (VP2) service mode to 00
3) Input a staircase signal of black to white from the pattern
1) Set to service mode.
2) Set 49(ABL) and IF (VP2) service mode to 00
3) Input a staircase signal of black to white from the pattern
generator.
4) BRIGHTNESS .... 50%.
PICTURE ............ MINIMUM
5) Select OE 'SBR' with [1] and [4], and adjust OE 'SBR' level
with [3] and [6] so that the second stripe from the right is
dimly lit.
dimly lit.
6) Write into the memory by pressing [MUTING] then [0].
7) Set back 49 (ABL) and IF (VP2) service mode to original data.
7) Set back 49 (ABL) and IF (VP2) service mode to original data.
White
second from the right
Black
FOCUS
SCREEN
FLYBACK TRANSFORMER (T503)
a
d
c
b
a to d : Permalloy assembly
Fix a Permalloy assy
corresponding to the
misconverged areas
corresponding to the
misconverged areas
b
a
c
d
a-d : screen-corner
misconvergence
misconvergence
(3) Screen-corner Convergence
– 17 –
KV-PG14N70
RM-915
SECTION 4
CIRCUIT ADJUSTMENTS
4-1. ADJUSTMENT WITH COMMANDER
Service adjustments to this model can be performed using the
supplied Remote Commander RM-915
supplied Remote Commander RM-915
a. ENTERING SERVICE MODE
With the unit on standby
With the unit on standby
This operation sequence puts the unit into service mode.
The screen display is :
b. METHOD OF CANCELLATION FROM SERVICE
MODE
Set the standby condition (Press [ P O W E R ] button on the
commander), then press [POWER] button again, hereupon it
becomes TV mode.
c. METHOD OF WRITE INTO MEMORY
1) Set to Service Mode.
1) Set to Service Mode.
2) Press [1] (UP) and [4] (DOWN), to select the adjustment.
4) Press [MUTING] button to indicate WRITE on the screen.
5) Press [0] button to write into memory.
d. MEMORY WRITE CONFIRMATION METHOD
1) After adjustment, pull out the plug from AC outlet, and then
plug into AC outlet again.
2) Turn the power switch ON and set to Service Mode.
3) Call the adjusted items again to confirm adjustments were
made.
n
[DISPLAY]
n
5
n
VOL (+)
n
[POWER]
4-2. ADJUSTMENT METHOD
Item Number 00 HPS
This explanation uses H Shift as an example.
1. Select “00 HPS” with the 1 and 4 buttons.
2. Raise/lower the data with the 3 and 6 buttons.
3. Select the optimum state. (The standard is 1F for PAL
reception.)
4. Write with the
[MUTING]
button. (The display changes to
WRITE.)
5. Execute the writing with the - button. (The WRITE
display will be changed to red color while excuting, and
back to SERVICE.)
Example on screen display :-
1, 4
Select the adjustment item.
↓
3, 6
Raise/lower the data value.
↓
[MUTING]
Writes.
↓
-
Executes the writing.
e. OTHER FUNCTION VIA REMOTE COMMANDER
7, -
All the data becomes the values in memory.
8, -
All user control goes to the standard state.
5, -
Service data initialization (Be sure not to use
usually.)
2, -
Copy and write all data.
[Display]
, -
Write 50Hz adjustment data to 60Hz or vice
versa.
Use the same method for all Items. Use 1 and 4 to select the
adjustment item, use 3 and 6 to adjust, write with [MUTING],
then execute the write with -.
Note : 1. In [WRITE], the data for all items are written into
memory together.
2. For adjustment items that have different standard
data between 50Hz or 60Hz, be sure to use the
respective input signal after adjustment.
respective input signal after adjustment.
PAL,SECAM:50
NTSC :60
NTSC :60
HPS
33
SERVICE
Data
Mode
Item
Adjustment
Software version
Suffix No
(OEM Code)
(OEM Code)
Total Power-On time (hours)
00
Item No
Depends on signal
V.2.3
V.2.4
00
000A
50
083S
33
SERVICE 50
HPS
Adjusted with [3] and [6] buttons.
GREEN
Write with [MUTING]
Write executed with [0]
00
33
WRITE
50
HPS
GREEN
00
33
WRITE
50
HPS
00
RED
The WRITE display
then the display
returns to green
SERVICE
The WRITE display
then the display
returns to green
SERVICE
– 18 –
KV-PG14N70
RM-915
Adjustment Item
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– 19 –
KV-PG14N70
RM-915
Adjustment Item
Ta
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NO
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: Bold item are fix
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•
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T
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.
•
Note f
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