Set-Up Adjustments - Sony TRINITRON PVM-14N1A Service Manual

SECTION 3
SET-UP ADJUSTMENTS
3-1. PREPARATIONS (1)
Perform all adjustments after five minutes the power is turned
ON.
This set is provided with a service switch 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
Simultaneously press both the [ENTER] key and [MENU] key
that do not display condition any menus. When '' Ver ***" is
displayed on the screen, press the [ENTER] key twice.
(3)
Range of Service Mode Display
2. SERVICE MODE DISPLAY
(1) This is the seria! number for each of the service items.0-65.
(2) The service item a name displayed.
(3) 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 saved to the ROM the
adjustment values will be erased by turning off the power or
by input select, so please be careful.
(4) SAVE a displayed to the guidance.
3. FINISHING THE SERVICE MODE
Simultaneously press the [ENTER] key and the [MENU] key
shown in the display of the menu.
4. CHANGE OF SERVICE ITEMS
The item are returned with the [LINE-A] key and forwarded
with the [LINE-B] Key. When a key is continuously pressed, the
Operation will be repeated.
5. CHANGE OF SERVICE DATA
The service data is made larger with the [ ® ] key and smaller
with the [ % ] key. When continuously pressing the keys, the
operation will be repeated.
6. READING THE SERVICE DATA
For items with different adjustment data for each input line, re-
turn to the normal mode, switch the input , enter the service mode
again, and perform the adjustment.
For items with different adjustment data for every color stand-
ard, return to the normal mode, select COLOR SELECT in the
forcible mode, enter the service mode again, and perform the
adjustment.
7. WRITING OF SERVICE DATA
When writing data from the RAM to the ROM, press the [MENU]
key once and check that the SAVE display is shown in the guid-
ance, and then press the [MENU] key once again to display
SAVE JS. Not only the displayed data will be written, but all
data, so please be careful.
Note: The [LINE-A] and [LINE B] buttons of the A board must be
pressed after the service mode cabinet of SSM-14N1A/
14N1E/14N1U/20N1A/20N1E/20N1U is removed.
a 13 aes
Initial Setting of Service Data ROM
Common for Each Model
2Oinck
[00 BKUN | Peaking level undershoot__| __0| 0
[OT PKOV____| Peaking level overshoot | 0] 0
Peaking level for chroma red
peaking
Peaking level for chroma
Trap filter characteristic
05 CFS broad/narrow (Include
NTSC, PAL and SECAM)
H.center of composite signal
/% [wer | niga | |
| | wow senesced | 190| 190
urement reserved
a ee
disabled/enabled
| 09 | vaso | V. Blanking stop [___ 14] 14
| 10 [avst | Star of active video ——_[__17[ 17
| TT [AGCREF | Syne amplitude reference | 2D] __2DC|
= [pep] ooo
<*V CENT>
13 |VIDEO S-BRT_| Video sub bright {100100
RGB sub bright |__100{ _—100
RGB maximum contrast
15 RGB CONT (Adjust for max point of 10D
cont)
PCLPGT | Integral clamp loopgaim | a] 1.
' 7 _ | CLPGP | Proportional clamp loop gain | _6| 6
D>
Current feed back pulse drive
*DRIVE LIMIT | (Define the size of feedback
pulse)
7
teresis
Fei i)
| KILVL
level
GAIN
SGAIN
BCLTHR
BCLTM
BCLG
27 BCLMIN
<32>
IF]
_
a
to ~ N pre) Vv
defines the time constant of
IF2 AFC from IF-1 and IF-2
which make movements for
AFC of H)
Red cutoff
38)<39>
39)<40)>
*R C/O
*G C/O
Threshold level for beam [13E}
current limiter (BE)<82> |(E1)<E5>
rent limiter
Loop gain for beam current [808] [809]
Minimum contrast for beam
current limiter (Define the oo
value of contrast)
INTLC | Intertace offset | SO
Correction level for zooming [2A]
HTM [6}6)<3>
(SLCLVL) (89C)[__(89C)
<SVWINI> <7>
<SVWIN2> <FFC>
Proportional H-PLL gain(H-
PLL defines the time con-
stant of AFC from IF-1 and
{F-2 which make movements
for AFC of H)
Integral H-PLL gain (H-PLL .
| Greencutoff ||
— Continued on next page —
47
43
= = = om) = a s 2
A A
B tm = B
v Vv
*
w
QO
~~
2) On
i