Mitsubishi CT 29BV1 BD Quick Start Manual

MITSUBISHI CT 29BV1 BD
Load Dressing
1.4.2 Lead dressing
2.1 introduction
Leads must be dressed as shown in table 1 .4B
Most service adjustments to these models are
and the diagram (fig. 1.4C) below. The leads are
made using the remote control (figure 2.1A) with
routed or clamped so that they do not come
the TV in service mode. The adjustment data is
close to any heat generating or high-tension
stored in an EEPROM.
parts. The anode lead wire is routed such that
no tension is applied to the anode cap. If the
mounting angle of the anode cap and the route
of the anode lead wires are changed, return
them to the initial angle and route.
CLAMP No WIRES CLAMPED
1 KB, KK
2 DA, DM
3 DM
4 DA, DD, DE, DF (3+4)
5 DD
6 DA (looped), KD
7 DY (Loop the lead twice)
8 LB, BA (Loop the lead twice)
9 KD, SC, GA (Loop the lead)
NOTE: The software in the microcontroller
10 LB (Loop the lead twice), SB, Focus IC701 may be either of 2 versions -EE3 or
11 Anode lead
EE3W. EE3 software is used in IC701 part no.
12 BA, DF(1+2)
274P755010, EE3W software is used in IC701
part no. 274P755040.
table 1.4B Lead-dressing table.
The actual software in use is shown on the
Options adjustment display - see the next
section.
2.1.1 Basic adjustment procedure
1.Turn the power on and enter service mode -
either (EE3) press the Service switch (S701,
next to the aerial socket) and then button "9"
within 5 seconds (EE3W) press the MENU
button to display the MAIN MENU then
immediately key-in 2-3-5-7.
2. Press the "*" button to toggle between the
VCJ or OPTION adjustment display (figs. 2.1
B, C, D and E).
table 1.4C Lead-dressing diagram.
Recommended Safety Parts
Item Part No. Description
255P941040 CRT
T551 MAIN 334P243030
T901 MAIN 350P663020
409P564070 ADG-COIL
R352 MAIN 103P378060
R353 MAIN 103P378060
R3A11 AUDIO-PWR 103P378060 R-FUSE
R3A12 AUDIO-PWR 103P378060 R-FUSE
R3B01 AUDIO-PWR 103P378060 R-FUSE
R3B02 AUDIO-PWR 103P378060 R-FUSE
R512 MAIN 103P442020
R513 MAIN 103P398040
R514 MAIN 103P397090
R516 MAIN 103P397090
R5M1 MAIN 109P913050
R671 VM/CRT 103P448050
R6B1 VM/CRT 103P370010
R6B4 VM/CRT 103P392050
R6B6 VM/CRT 103P370050
R6B7 VM/CRT 103P370010
R6B8 VM/CRT 103P392050
R981 MAIN 109P913050
R982 MAIN 109P913050
R992 POWER-SUB 109P91 1090 R-COMPOSITION
RP991 POWER-SUB 265P071 050 POSISTOR
J601 VM/CRT 4490126010
F991 POWER-SUB 283D047040
P0951 MAIN 268P068010
Z552 MAIN 299P193010
Z951 MAIN 299P193030
Z952 MAIN 299P193070
Z953 MAIN 299P193000
920A427002* ASSY-PWB-MAIN
H92A002001* ASSY-PWB-MAIN
9300899011 ASSY-PWB-VM/CRT
9300900005 ASSY-PWB-POWER-SUB
9300901003 ASSY-PWB-LED
9300904004 ASSY-PWB-AUDIO-PWR
9300909001 ASSY-PWB-TEXT
9300911017 ASSY-PWB-DOLBY
2460162010 AC-POWERCORD/U K-PLUG
7000609080 ASSY BACK COVER
Adjustments
3. Press buttons "2" or "8" to increase or
decrease the adjustment code number.
4. Press buttons "6" or "4" to increase or
decrease the data value.
5. After making adjustments, press button "0', to
write the adjustment data to the EEPROM. To
cancel a change, press button "1', and all
data adjusted since the last EEPROM write
will be reset.
2.2 INITIALISING THE EEPROM
If you have replaced the EEPROM (IC702) or if
for any reason the adjustment data has become
corrupted it will be necessary to initialise the
EEPROM.
2.2.1 Initialising the EEPROM
1. If necessary, switch off by the Main switch.
2. (EE3) Hold in the service switch (S701, next
to the aerial socket) or (EE3W) connect pin
55 of IC701 to ground via a 1000 resistor
while switching on by the Main switch.
A68EDG038X301
3. (EE3) Release the service switch after 3
TRANS-FLYBACK
TRANS-POWER seconds or (EE3W) remove the shorting
resistor.
R-FUSE 1/4W 3.3-J
4. Switch off by the Main switch. The EEPROM
R-FUSE 1/4W 3.3-J
data values have now all been reset to their
1/4W 3.3-J
1/4W 3.3-J initial default values.
1/4W 3.3-J
5. Switch on by the Main switch. (EE3) Press
1/4W 3.3-J
the Service switch and then button 9 on the
R-FUSE-METAL 1W 560-K/J
remote control within 5 seconds to enter
R-FUSE 1/2W 2.2-J
R-FUSE 1/2W 0.82-J
service mode (EE3W) press MENU then key
R-FUSE 1/2W 0.82-J
in 2-3-5-7.
R-COMPOSITION 1/2W 68M-J
6. Press the "*" button to select the OPTIONS
R-FUSE-METAL 1W 27-K/J
R-FUSE 1/4W 10-J adjustment display.
R-FUSE 1/2W 10K-J
7. Press buttons 2 or 8 to select the adjustment
R-FUSE 1/4W 22-J
code.
R-FUSE 1/4W 10-J
8. Adjust the data value for each code as shown
R-FUSE 1/2W 10K-J
R-COMPOSITION 1/2W 6.8M-J in table 2.2A below using buttons 2 or 4:
R-COMPOSITION 1/2W 6.8M-J
(other codes may be displayed but are not
1/2W 470K-J
used) EE3 software:
PTH451 041 BG180N
CRT SOCKET
FUSE T2A
CODE: SETTING:
PHOTOCOUPLER TCDT1124G
TUN 1
PROTECTOR 2000
SAT 0
PROTECTOR 3150
PROTECTOR 5000
AUD 0
PROTECTOR 1600
ATS 1
Later models *
STD 1
Early models *
SYS 2
AVI 2
SPK 0
ABG 12
Al 08
AL 06
1
CODE: SETTING:
ADK 08
MNP 70
FFT 1
VOL 74
HYP 1
SCP 20
FMP 23
EE3W software:
CODE: SETTING:
TUN 1
SAT 0
AUD 0
ATS -
STD 1
SYS 2
AVI 2
AUD -
SPK 1
MNP 70
FFT -
VOL 74
HYP 1
SCP 20
FMP 23
DBY 1
WID 0
table 2.2A Data values for the OPTIONS
adjustments.
9. Press the 0 button to write the changes to the
EEPROM.
10.Press the * button to select the VCJ adjust-
ment display.
11.Press buttons 2 or 8 to select the adjustment
code.
12.Adjust the data value of each code using
buttons 2 or 4 according to table 2.2B below:
EE3 software
CODE: 11 19 1B
VALUE: 001 -1 -13
EE3W software
CODE: SHA HPT HPX
VALUE: 001 -1 -13
table 2.2B Data values for the VCJ adjustments.
13.Press the "0," button to write the changes to
the EEPROM.
2.2.2 OPTION and VCJ code descriptions.
VCJ
CODE FUNCTION CODE
(EE3) (EE3W)
00 V-AMP-50 0 VH5
01 V-B-CORRECTION 1 VBC
02 P-AMP-50 2 PA5
03 P-TILT 3 PT5
04 V-LIN 4 LIN
05 C-CORRECTION-50 5 CC5
06 H-AMP 6 HW5
07 16x9-SW.RGB-MATRIX 0 MTX
08 V-SHIFT- 50 7 VS5
09 H-PHASE-5O 13 HP5
0A BLUE DRIVE 1 BDR
0B GREEN DRIVE 2 GDR
0C RED DRIVE 3 RDR
0D CONTRAST 4 CON
0E BRIGHT 5 BRI
0F COLOUR SATURATION 6 COL
10 NTSC TINT 8 TNT
11 SHARPNESS 7 SH
12 PAL-LUMA-DELAY 12 PCD
13 SECAM-LUMA-DELAY 11 SCD
14 V-AMP-60 8 VH6
15 P-AMP-60 9 PA6
16 H-AMP-60 12 HW6 Check the VERTICAL BREATHING CORREC-
17 V-SHIFT-60 13 VS6 TION as follows:
18 H-PHASE-60 14 HP6
19 H-PHASE-TEXT 15 HPT 1. Select the VCJ adjustment display.
1A H-PHASE-SECAM 16 HPS 2. Set the adjustment code to 01 (1 VBC) with
1B H-PHASE-RGB 17 HPX buttons "2" or "8" on the remote control.
1C P-AMP-16: 9 18 PA9 3. If necessary, adjust the data value to "-31"
1D 358 NTSC-LUMA-DELAY - using buttons "4' or "6' on the remote control.
1E 443 NTSC-LUMA-DELAY -
- NTSC (358 & 443) CHROMA DELAY 10 NTD 2.4.2 Horizontal centre
- BG CHROMA DELAY OFFSET 9 BGD
- P-AMP-60 9 PA6 Code: 09 (13 HP5) [H-PHASE-50]
- P-TILT-60 10 PT6
- C-CORRECTION-60 11 CC6 1. Connect a VCR and play a PAL-Monoscope
- TOP-BLANKING-50 14 TB5 alignment tape.
- BOTTOM-BLANKING-50 15 BB5 2. Select the VCJ adjustment display.
- H-BLANKING-WIDTH-50 16 BW5 3. Set the adjustment code to 09 (13 HP5) with
- H-BLANKING-PHASE-50 17 BP5 buttons "2" or "8" on the remote control.
- TOP-BLANKING-60 18 TB6 4. Adjust the horizontal position with buttons "4'
- BOTTOM-BLANKING-60 19 BB6 or "6" on the remote control.
- H-BLANKING-WIDTH-60 20 BW6
- H-BLANKING-PHASE-60 21 BP6 2.4.3 Horizontal width
OPTIONS
Code: 06 (6 HW5) [H-AMP]
CODE FUNCTION CODE
(EE3) (EE3W) 1. Connect a VCR and play a PAL-Monoscope
TUN TUNER TYPE TUN alignment tape.
SAT SATELLITE ENABLE SAT 2. Select the VCJ adjustment display.
AUD AUDIO SYSTEM AUD 3. Set the adjustment code to 06 (6 HW5) with
ATS AUTOTUNING SORT ATS buttons "2" or "8" on the remote control.
STD RECEPTION STANDARD STD 4. Adjust horizontal width with the buttons "4" or
SYS COLOUR SYSTEM SYS "6" on the remote control.
AVI NO. OF AV INPUTS AVI
AVD AV DUBBING AVD 2.4.4 East-West PCC
EEX CHASSIS TYPE -
SPK SPEAKER SW ENABLED SPK Code: 05 (5 CC5) [CORNER CORRECTION-50]
EEP EEPROM SIZE - Code: 03 (3 PT5) [PARABOLA TILT]
ABG AGC GAIN – BG - Code: 02 (2 PA5) [PARABOLA AMP-50]
Al AGC GAIN-I -
AL AGC GAIN-L - 1. Connect an RF PAL Crosshatch signal.
ADK AGC GAIN-DK - 2. Select the VCJ adjustment display.
MNP NICAM PRESCALE MNP 3. Set the adjustment code to 05 (5 CC5) with
TXT TELETEXT TYPE - buttons "2" or "8" on the remote control.
FFT FAST/TOP TEXT FFT 4. Adjust the data value to "-25" with buttons "4"
VOL VOLUME PRESCALE VOL or "6" on the remote control.
HYP HYPERSOUND HYP 5. Set the adjustment code to 03 (3 PT5) with
SCP SCART PRESCALE SCP buttons "2" or "8" on the remote control.
FMP FM PRESCALE FMP 6. Watching the second vertical line in from both
- DOLBY DBY sides of the screen (figure 2.4A), make any
- WIDE SCREEN WID upper and lower distortion symmetrical using
buttons "4" or "6" on the remote control.
2.3 VIF CIRCUITS
2.3.1RF AGC
VR101 (adjacent to the tuner)
1. Connect an RE signal such as an off-air
broadcast.
2. Check the AFT is on for the current channel.
3. Adjust VR101 so that the picture and sound
exhibit no noise, beat or intermodulation
distortion.
2.3.2 SIF OFFSET
VR 102 (near IC101)
1. Connect an RE Crosshatch pattern signal
with NO sound modulation
7. Set the adjustment code to 02 (2 PA5) with
2. Set the Volume control to about 3/4 of
buttons "2"or "8" on the remote control.
maximum.
8. Adjust the straightness of both vertical lines
3. Adjust VR102 to obtain minimum noise.
(figure 2.4B) using buttons "4" or "6" on the
remote control.
2.4 DEFLECTION CIRCUITS
9. Repeat steps 1 to 8 above if necessary.
10.Connect a VCR and play a PAL-Monoscope
2.4.1Important notes
alignment tape.
11.Make sure the horizontal width and horizon-
Before making any adjustments, if you have
tal centre are correct. If necessary readjust
changed the CRT, FLYBACK TRANSFORMER
Horizontal Centre 09 (13 HP5) and Horizontal
or made any changes in the deflection circuits;
Width 06 (6 HW5) again.
adjust the CRT bias as described in 2.6.1 steps
1 ~ 4.