Service Manuals, User Guides, Schematic Diagrams or docs for : MITSUBISHI Proj TV VZ6-V15_Chassis VZ6-V15_Chassis
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Section 1
Servicing Menus & Adjustments
Operating Parameters and Service Adjustments on The activation codes, and basic procedure for each
the VZ6 and V15 are set in the same four Service Service Mode remains the same. They are shown in
Modes used in previous models: Figure 1-1.
Factory Menu sets the operating param-
eters of the TV Of course, due to the SDTV and HDTV compatibil-
Adjustment Mode Signal, CRT, and ity feature in both chassis, the number of adjustments
Deflection Adjustments have increased. Although the number of adjustments
TV GUIDE Plus+ Position the TV GUIDE have increased, there are only two new service re-
Plus+ Display lated adjustments in the Adjustment Mode:
Convergence Raster correction, and 1) Main Picture Cr and Cb Offset
Convergence 2) PIP Cr and Cb Offset
Page 1-1
Adjustments for the CRT, Deflection, Raster Cor- OPTION MENU
rection and Convergence must be performed in both
the NTSC and HD modes. This essentially doubles INITIAL
the number of adjustments for these circuits. E2 RESET
DTV PORT: AUTO
Raster Correction and Convergence can be performed DTV SIGNAL STRENGTH: N/A
in the HD mode, using the internal Crosshatch sig- POWER RESTORE: OFF
nal. To perform CRT, and Deflection adjustments in WHEN MUTE: ON
CONVERGENCE RESET
the HD mode, a HDTV Signal Generator is required.
DTV DIAGNOSTICS
It should be capable of generating Color Bars,
DTV E2 RESET
Grayscale, White Raster and Monoscope signals. The FREE RUN:
luminance level should be adjustable to accurately
set HD White Balance. MAIN VERSION: XXXXXX
SUB VERSION: XXXXXX
If a HDTV Generator is not available, DO NOT at-
Figure 1-2: Factory Option Menu
tempt HD mode adjustments for these circuits.
Factory Menu OFF. If ON, the TV can be switched ON when power
The Factory Menu (MENU-1-3-7-0) for the VZ6 is applied to the set. "When Mute" is normally set to
chassis is illustrated in Figure 1-2. The new items, ON, this activates Closed Captioning when the Mute
DTV Strength, DTV Diagnostics, DTV E2 Reset button is pressed.
and Free Run are only active when an ATV Receiver
(HD-1080) is connected to the set. "E2 Reset" is also not new, and normally is not acti-
vated. If "E2 Reset" is selected, and the RCL button
The "Initial" function is the same as previous mod- is pressed, all data in the following service modes is
els, setting user adjustments to their reset value. reset to its nominal value, requiring a complete re-
adjustment:
The "DTV Port" has five possible selections: Adjustment Mode
1) AUTO GUIDE Plus+ Mode
2) SD 4:3 Convergence Miscellaneous Mode.
3) SD 16:9
4) HD The "Convergence Reset" selection is also not usu-
5) 480P ally activated. When it is selected, and Enter is
pressed, it resets all data in the Coarse and Fine Con-
The "DTV Port" must be set to AUTO for normal vergence Modes. This would require a complete
operation. Although it is described in more detail Convergence Alignment.
later, to activate the HD Convergence Mode, HD
horizontal and vertical sync must be present at the Adjustment Mode
ATV inputs of the set. As in the past, pressing MENU-2-3-5-7 in sequence
activates the Adjustment Mode. The Adjustment
However, the TV can be forced into the HD Con- Mode display has additional information that was not
vergence Mode by setting the "DTV Port" selection used in previous models. Examples of these displays
to HD. Then use the Input button to select the ATV are shown in Figure 1-3. The chassis number, and
Inputs and enter the Convergence Mode. the operational mode, NTSC or HD, are now in-
cluded in the display. Of course, the Adjustment
"Power Restore" and "When Mute" are not new Function, Adjustment Item number, abbreviation, and
items. The normal setting for "Power Restore" is data are still in the display.
Page 1-2
All data values given in this book are
for model VS-50803 (VZ6 chassis).
Check the appropriate Service
Manual for data values in other mod-
els.
The upper right display in Figure 1-
3 denotes the HD mode. In the Ad-
justment Mode, the Info button,
toggles between the NTSC and HD
modes.
However, data changes are not au-
tomatically saved when the mode is
changed from NTSC to HD, or HD
to NTSC. Before pressing the Info
button, press Enter to save any data
changes. In each of these Functions, only a small percentage
of the Items require adjustment. For example, in the
The Sub Scalar function display is shown at the lower Video Chroma Function there are 70 Items, but only
left in Figure 1-3. Sub Scalar circuitry is only used 16 of the Items require adjustment.
in the V15 chassis, not the VZ6. The Sub Scalar
function is displayed on the VZ6 but is not used. Tables 1-1 through 1-5 list only those Items requir-
ing adjustment under that specific Function. The
As in previous models, the Audio button selects the complete list of all Items under each Function are
Adjustment Function, and the Video button selects given in the Service Manuals.
the Item (adjustment) under that Function. There Table 1-1: Video Chroma Function
are a total of 15 Adjustment Functions in the VZ6 Table 1-2: Main Matrix Function
and V15 chassis. The Functions, and the sequence Table 1-3: Sub Matrix Function
of selection are shown in Figure 1-4. Table 1-4: PIP Function
Table 1-5: Deflection Jungle Function
The total number of Adjustment Items in the Adjust-
ment Mode is 725.
However, only a small
percentage of these are
used for adjustment. The
remainder are just preset
data values. Service Ad-
justments are only per-
formed in the following
Functions:
Video Chroma
Main Matrix
Sub Matrix
PIP
Deflection Jungle
Page 1-3
Video Chroma (70 Items Total)
RANGE DATA DATA
ITEM ABREV ADJUSTMENT NAME NOTES
0 to ?? NTSC HD
1 SCT Picture Gain Control 63 42 31 Sub Contrast Adj.
2 SBRT Sub Brightness 63 17 31 Black Level Adj.
5 SCON Sub Contrast 15 1 5 CRT Cutoff / White Balance
6 RDRH Red High Drive 63 25 31 CRT Cutoff / White Balance
7 GDR Green Drive 63 25 31 CRT Cutoff / White Balance
8 BDRH Blue High Drive 63 25 31 CRT Cutoff / White Balance
9 CTRH Red High Cutoff 63 15 31 CRT Cutoff / White Balance
10 CTGH Green High Cutoff 63 60 31 CRT Cutoff / White Balance
11 CTBH Blue High Cutoff 63 16 31 CRT Cutoff / White Balance
12 RDRL Red Low Drive 63 31 31 CRT Cutoff / White Balance
13 BDRL Blue Low Drive 63 20 25 CRT Cutoff / White Balance
14 CTRL Red Low Cutoff 63 31 15 CRT Cutoff / White Balance
15 CTGL Green Low Cutoff 63 60 31 CRT Cutoff / White Balance
16 CTBL Blue Low Cutoff 63 15 10 CRT Cutoff / White Balance
18 BRT Brightness 63 31 31 User Control
19 COL Color 63 26 31 User Control
20 TINT Tint 63 31 31 User Control
21 CONT Picture Adjust 63 31 31 User Control
22 SHRP Sharpness 63 3 31 User Control
56 CRO1 Cr Offset 15 9 7 Main Cr & Cb Offset
57 CBO1 Cb Offset 15 10 7 Main Cr & Cb Offset
Table 1-1: Video Chroma Function
Main Matrix (46 Items Total)
RANGE
ITEM ABREV ADJUSTMENT NAME DATA NOTES
0 to ??
3 YDRM Main Y Gain Adj. 31 7 Main Picture Y Level Adj.
Table 1-2: Main Matrix Function
Sub Matrix (46 Items Total)
RANGE
ITEM ABREV ADJUSTMENT NAME DATA NOTES
o to ??
2 COLS VZ6 Sub Color Gain 63 19
V15 Sub Color Gain 63 13 Sub Color Level (V15)
3 YDRS Sub Y Gain Adj. 31 7 Sub Picture Y Level Adj.
Table 1-3: Sub Matrix Function
PIP (47 Items Total)
RANGE
ITEM ABREV ADJUSTMENT NAME DATA NOTES
0 to ??
1 PIP PIP On/Off 1 0 Customer Control
6 FRZ Freeze PIP Picture 1 0 Customer Control
8 HPM 2 MSBs of Horiz. Pos. 3 2 Customer Control
20 DECH Horiz. (3:1, 4:1) 1 0 Customer Control
21 DECV Vert. (3:1, 4:1) 1 0 Customer Control
46 PDU U Pedestal Adj. 15 15 PIP Cr & Cb Offset Adj.
47 PDV V Pedestal Adj. 15 0 PIP Cr & Cb Offset Adj.
Table 1-4: PIP Function
Page 1-4
Deflection Jungle (42 Items Total)
RANGE DATA DATA
ITEM ABREV ADJUSTMENT NAME NOTES
0 to ?? NTSC HD
1 HWID Width Adj. 63 32 25 Width Adj.
2 HKEY Horiz. Keystone 63 31 31 Raster Distortion Preset
3 EWPT Top EW PCC 63 31 31 Raster Distortion Preset
4 EWCT Top Corner PCC 63 31 31 Raster Distortion Preset
5 EWPB Bottom EW PCC 63 31 31 Raster Distortion Preset
6 EWCB Bottom Corner PCC 63 31 31 Raster Distortion Preset
7 VHGT Height 63 31 31 Height & V Linearity Adj.
8 VLIN Vert. Linearity 15 7 7 Height & V Linearity Adj.
9 VSCN Vert. S 15 7 7 Height & V Linearity Adj.
14 HPOS Horiz. Position 63 35 34 Centering Preset
Table 1-5: Deflection Jungle Function
The procedures for each of the Adjustments are given 1) Convergence Miscellaneous
in the Service Manuals. However, it was mentioned 2) Coarse Convergence Mode
earlier that there are two new adjustments, Main Pic- 3) Fine Convergence Mode
ture Cr Cb Offset, and PIP Cr Cb Offset.
Convergence SD/HD Selection
Main Picture Cr Cb Offset is performed in the Adjustments must be performed in both SD and HD
Video Chroma Function, using a White Raster sig- Modes. SD (Standard Definition) is used to denote
nal set for 25% luminance. The data for Items 56 NTSC in the Convergence Mode. In the Conver-
CRO1, and 57 CB01 are adjusted for optimum white. gence Mode, the Info button DOES NOT toggle be-
This adjustment is performed in both the NTSC and tween SD and HD.
HD modes.
The mode is determined by the signal source when
PIP Picture Cr Cb Offset is only performed in the the Convergence Mode is activated. If an NTSC or
NTSC Mode, PIP is not featured in the HD Mode. SD signal is the source, the Convergence Mode
1) Select the Grayscale pattern for both main comes on in the SD Mode. When an HD signal is
and sub pictures. the source, the HD Mode is activated. Therefore, to
2) Select the Adjustment Mode PIP Function. switch from SD to HD, or visa versa:
3) Set the data for Items 46 PDU and 47 PDV 1) The Convergence Mode must be terminated
to the Option in Table 1-6 that matches Sub (press Menu twice).
Picture Gray to Main Picture Gray. 2) Select the appropriate signal source with the
Input button.
3) Re-enter the Convergence Mode (MENU-2-
OPTION 46 PDU 47 PDV
3-5-9)
1 0 0
2 0 15
3 15 0 As mentioned earlier, if an HD signal is not avail-
4 15 15 able the TV can be forced into the Convergence HD
Table 1-6: Sub Cr Cb Offset Mode by the following procedure:
1) Activate the Factory Menu (MENU-1-3-7-0)
Convergence Mode 2) Change the DTV Port from AUTO to HD.
The Convergence Mode, activated by MENU-2-3- 3) Terminate the Factory Menu (Menu button
5-9, is basically the same as in the VZ5. It consists twice)
of three major Functions: 4) Select the DTV Input (Input button)
5) Activate the Convergence Mode (MENU-2-
3-5-9).
Page 1-5
The HV Adjustment, Item 0 HVOL, may be per-
formed in either the SD or HD Mode. A change in
Item 0 HVOL data automatically changes that data
in both modes.
Coarse Convergence Function
Pressing 5 when in the Convergence Mode acti-
vates the Coarse Mode. The Coarse Convergence is
used to:
1) Perform Coarse Raster Correction Adjust-
ments (COARSE GREEN)
2) Perform Coarse Red and Blue Dynamic
Convergence Adjustments (COARSE RED
The Convergence On-screen Display indicates the
and COARSE BLUE)
current mode. Figure 1-5 illustrates examples of the
3) Preset Dynamic Focus Data (DF)
Conv. Misc., and Coarse Green displays in the SD
mode.
Like in the VZ5 chassis, use the Audio button to
select COARSE GREEN, COARSE RED, COARSE
NOTE: After completing Convergence Adjust-
BLUE, or DF. Then use the Video button to select
ments, be sure to reset the DTV Port back to
the Adjustment Items under that Function.
AUTO.
Coarse Raster Correction Adjustments are made
Convergence Miscellaneous Function
in the COARSE GREEN mode. Table 1-8 shows
When in the Convergence Mode, pressing 6 acti-
the Adjustment Items in the Coarse Green mode.
vates Conv. Misc. The Conv. Misc. mode is used to
perform HV Adjustment. The remaining Items in
Before performing this adjustment, the Height, Ver-
this mode are preset data values controlling the Con-
tical Linearity, and Width adjustments must have been
vergence Generator IC.
set in the Deflection Jungle Function. These adjust-
ments must be made in both the NTSC and HD
Table 1-7 lists the Items is the Conv Misc mode. All
modes.
preset data values must be set in the SD, and HD
Modes. Incorrect preset values may prevent opti-
The Items under Coarse Green are then adjusted for
mum convergence, or may result in excessive con-
straight lines in the Crosshatch pattern. These ad-
vergence drive to obtain convergence.
justments must be made in the SD and HD modes.
CONV-MISC
SD HD
ITEM ABREV ADJUSTMENT NAME RANGE NOTES
DATA DATA
0 HVOL HV Regulation Adj. 255 197 HV Adj.
1 VSTR Vert. Offset Count Value 255 0 0 Conv. Gen Preset
2 VCNT Vert. Count Value 255 29 29 Conv. Gen Preset
3 STLN Start Line (Defl. Correction) 255 51 103 Conv. Gen Preset
4 FPHS Fine Horiz. Blk. Phase Correction 255 198 198 Conv. Gen Preset
5 CPHS Coarse Phase Adj. 255 16 15 Conv. Gen Preset
6 DPHS Dynamic Phase Adj. (Focus & Blk) 255 40 40 Conv. Gen Preset
7 TPHS Test Pattern Phase 255 71 71 Conv. Gen Preset
8 HDLY Horiz. Blk. Phase 255 235 240 Conv. Gen Preset
9 PLWD Horiz Blk. Pulse Width 63 31 31 Conv. Gen Preset
Table 1-7: Convergence Misc.
Page 1-6
COARSE CONVERGENCE GREEN
SD HD
ITEM ABREV ADJUSTMENT NAME RANGE NOTES
DATA DATA
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