questo è quanto ho trovato da un utente sul forum avstraniero, magari potrebbe tornarvi utile, sono gli interventi che ha fatto lui sul service menu..ovviamente i valori sono indicativi in quanto ogni TV ha vita propria, ma almeno nella prima parte si capisce quali sono le voci del menu video adjust 1 e video adjust 2 più significative (sempre da prendere con le dovute cautele).
Ciao.
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Well, if you don't know already, to get into the service menu: with the set turned off, on the remote press MUTE, 1, 8, 2, POWER. That'll take you to the service menu. The menus you should be concerned with are DEFLECTION, VIDEO ADJUST 1 and VIDEO ADJUST 2.
Deflection handles geometry. To minimize overscan, you want to focus on the first four settings: V-AMP and H-AMP control how tall and wide the screen is (stretching, literally), V-SHIFT and H-SHIFT control the centering of the screen, vertically and horizontally. It works best to shrink the screen down quite a bit, on both planes, so that you have black borders all the way around. Then use V and H-SHIFT to center the screen. Once you're centered, use V and H-AMP to get your picture back to full screen. Be sure to go a few clicks over. Some feeds aren't quite as "big" resolution-wise as others. Make sure you test your settings with HD channels, standard channels, and any inputs you have like DVD, video games, etc. My settings are:
V-AMP: 26
V-SHIFT: 24
H-AMP: 20
H-SHIFT: 24
Once you have overscan eliminated, the other entries on this menu you might want to tweak are H-PAR, UP-COR, LOW-COR, H-TRA, BOW and ANGLE. Don't bother with the rest. I haven't seen them make any difference. I can't really explain to you what each of these does specifically, because honestly, I don't know. Just make sure to WRITE DOWN YOUR DEFAULT VALUES before messing with these, or anything. Set aside a couple of hours for tweaking and I'm sure you'll get good results. A copy of DVE and Avia running a geometry test pattern in the background helps. Just so you know, when in the service menu, your TV will still display the picture of whatever's connected to your selected input in the background, which definitely helps.
Video Adjust 1 deals with a few important settings. Only modify CTI_LEVEL, COL_AXIS, LTI_LEVEL and MELODY VOLUME in here. I haven't touched anything else. If you want to get rid of the annoying chimes that play when you turn your TV on or off, changed MELODY VOLUME all the way down to 0. COL_AXIS handles "red push". A setting of 1 (not 0 for some reason) turns it off. This is definitely recommended. CTI_LEVEL and LTI_LEVEL handle enhancement of chrominance and luminance; I turned them both down to 0 for a more natural picture.
Video Adjust 2 deals with the other very important stuff. Only modify GAMMA, DPIC_LEVEL, DC-TRANS, VM_LEVEL and SHP_CD. GAMMA, DPIC and DC-TRANS are all somewhat similar. Lower them. Turning them higher will make the picture darker and eliminate shadow detail. I recommended setting all three to zero and then using the basic "brightness" control in the regular menu to control everything else. SHP should also be set to 0 to prevent more artificial sharpening of bright colors. And of course, we come to VSM. Set VM_LEVEL to 0 to do away with the evil velocity scan modulation. You can even set it to 1, but I don't recommend any artificial effects.
When you're done tweaking, just hit power. When you turn your set back on, your settings will be reset, so be sure to take the TV off Dynamic picture mode and set it to custom or even movie. I suggest calibrating with DVE or Avia to get the best picture. Remember, though, ALWAYS record your original settings as there's no way to get them back. And a lot of this is trial and error. You'll probably be turning your TV on and off quite a few times to get to a picture you like best!
A properly calibrated set will probably look much different than factory settings. Let your eyes get used to it and they'll thank you. It will be more like looking through a window than watching TV.
WS-32Z409 Service Menu:
Deflection
480p/576p
720p/1080i
4:3 Offset--Vixlim
Video Adjust 1
Video Adjust 2
Video Adjust 3
Video Adjust 4
Video Adjust 5
Video Adjust 6
Video Adjust 7
Video Adjust 8
Option (55 EA 09)
YC Delay
EEPROM
Bus Stop
Checksum 0000
Reset
Settings from stooahee, settings put in (...) are the default values
Deflection
V Amp 42 (40)
V Shift 26 (27)
H EW 38 (39)
H Shift 38 (42)
V Linearity 6 (6)
Upper Lin 0 (0)
Lower Lin 1 (1)
V Sc 3 (3)
H Parabola 36 (40)
Upper Corner 36 (36)
Lower Corner 36 (37)
H Trapezium 27 (19)
Bow 33 (34)
Angle 28 (33)
V Position 32 (32)
UP UCG 0 (0)
LO UCG 0 (0)
UP UCP 0 (0)
LO UCP 0 (0)
Video Adjust 1
R Cutoff 35 (24)
G Cutoff 32 (20)
B Cutoff 37 (27)
R Drive 47 (44)
G Drive 38 (35)
B Drive 31 (28)
Sub Bright 25 (32)
Sub Contrast 8 (8)
Bright-VP 140 (140)
Contrast-VP 30 (30)
SAT-VP 11 (11)
TINT-VP 10 (10)
SC_RGB_BRTADJ 128 (128)
SC_RGB_CONADJ 45 (45)
SC_RGB_USATADJ 52 (52)
SC_RGB_VSATADJ 52 (52)
RGB24_BRTADJ 16 (16)
RGB24_CONADJ 28 (28)
RGB24_USATADJ 30 (30)
RGB24_VSATADJ 30 (30)
RGB24_BR_HD 16 (16)
RGB24_CO_HD 28 (28)
RGB24_USA_HD 30 (30)
RGB24_VSA_HS 30 (30)
PORT4_STR 1 (1)
untouched
Video Adjust 2 (PAL)
ABL Mode 3
Gamma 0
ABL TH 3
AKB Time 15
S ABL 3
P ABL 7
VSU 0
LNA EXE 3
H Comp 3
V Comp 5
Pin Comp 3
AFC Comp 0
Syc Phase 0
Syc Phase480p 1
Syc Phase 576p 0
Syc Phase 720p 1
Syc Phase1080i 0
untouched
Video Adjust 3 (PAL)
TNR Enable 1
TNR Chroma 11
TNR Luma 11
LTI Enable 1
LTI Gain 15
LTI Gain x2 1
LTI Coring 2
Lmix gain 3
Lmix offset 13
Pk Center Freq 3
Peaking Coring 2
CTI BW 1
CTI LP 1
CTI Gain 5
CTI Coring 2
V Peaking 3
V PK core gain 0
V PK high gain 0
V PK core high 0
IF Comp filter 4
DHYAPRESC 2
DHCAPRESC 2
Neg Peaking 11
DCE Gain 45
CORBP 0
Video Adjust 4
SVM RW 0 (2)
SVM Delay 0
SVM Coring 0 (2)
SVM Gain 40 (45)
SVM C_Gain 0
OSD Contrast 27 (30)
OSD Bright 120 (127)
TTX Contrast 17
TTX Bright 120
Melody Volume 10
VCR Mode Cnt 30
SLL THD 3 (2)
SLLTHDV 3
THRSEL 0
LPCDEL 0
Pilot High 13
Pilot Low 7
AM_Prescale 22
VCTP_FECA 2
untouched
Video Adjust 5
HORWIDTHP_H 5
HORWIDTHP_L 50
VERIWDTHP_H 1
VERIWDTHP_L 26
HORPOSP_H 1
HORPOSP_L 65
VERPOSP_H 0
VERPOSP_L 29
NAPPLIP_H 2
NAPPLIP_L 94
NALPFIP_H 0
NALPFIP_L 18
HSCPOSC_H 8
HSCPOSC_L 70
VSCPOSC_H 31
VSCPOSC_L 100
HORWIDTH_M_H 5
HORWIDTH_M_L 50
VERWIDTH_M_H 1
VERWIDTH_M_L 39
HORPOS_M_H 1
HORPOS_M_L 60
VERPOS_M_H 0
VERPOS_M_L 23
VSCPRESC_H 0
VSCPRESC_L 0
SD_BRTADJ 128
SD_CONADJ 32
SD_USATADJ 32
SD_VSATADJ 32
Video Adjust 6 is not accessible
untouched
Video Adjust 7
R_Drive_Warm2 8
B_Drive_Warm- 9
R_CutOff_Warm2 6
R_CutOff_Warm2- 11
R_Drive_Warm1 4
B_Drive_Warm1- 3
R_CutOff_Warm1 4
B_CutOff_Warm1- 3
R_Drive_Normal 0
B_Drive_Normal 0
R_CutOff_Normal 0
B_CutOff_Normal 0
R_Drive_Cool1- 5
B_Drive_Cool1 4
R_CutOff_Cool1 0
B_CutOff_Cool1 6
R_Drive_Cool2- 2
B_Drive_Cool2 6
R_CutOff_Cool2 0
B_CutOff_Cool2 9
Video Adjust 8
LTI_gain_NTSC 15
Peak_f0_NTSC 3
Peak_cor_NTSC 2
CTI_gain_NTSC 5
Lmix gain_NTSC 3
Lmix offset_NT 13
LTI_gain_AV 15
Peak_f0_AV 3
Peak_cor_AV 2
CTI_gain_AV 5
Lmix gain_AV 3
Lmix offset_AV 13
LTI_gain_SD 0 (15)
Peak_f0_SD 0
Peak_cor_SD 3 (2)
CTI_gain_SD 1
Lmix gain_SD 3
Lmix offset_SD 13
LTI_gain_HD 15
Peak_f0_HD 3
Peak_cor_HD 2
CTI_gain_HD 5
Lmix gain_HD 3
Lmix offset_HD 13
Option
1. System CW
2. CRT Wide
3. Sound SRS TSXT
4. Auto FM On
5. High DEV On
6. LNA Off
7. X-Ray On
8. TTX On
9. Txt Group OSD Land
10. Pip Off
11. Digital NR On
12. Carrier Mute Off
13. OSD Language English
14. Search LNA Off
15. HDMI On
16. Blue Screen On
17. Shop Mode Off
18. Speaker Direct