Miscellaneous Adjustments; Service Precautions - Toshiba Photofact Gold 43A61 Technical Service Data

HIGH HIGH HIGH HIGH V V V V V OL HIGH OL OL OLT T T T T A A A A A GE CHECK OL GE CHECK GE CHECK GE CHECK GE CHECK
Tune in a picture. Set brightness, contrast, and color to MINIMUM. Turn
the set off. Remove one of the high voltage cables. Insert a High Voltage
probe tip into the vacant hole. Turn the set on, high voltage should read
31kV to 32kV. Turn the power off and insert the high voltage cable back
into the vacant hole.
ENTERING ENTERING ENTERING THE SER ENTERING ENTERING THE SER THE SER THE SERVICE AND DESIGN MODES THE SER VICE AND DESIGN MODES VICE AND DESIGN MODES VICE AND DESIGN MODES VICE AND DESIGN MODES
To enter the service mode, press the mute button on the remote. Press the
mute button again and keep pressing while simultaneously pressing the
menu button on the receiver. The letter S will appear on the screen
indicating that the receiver is in the service mode.
When in the service mode, press the menu button on the receiver to display
the adjustment menu. To select the item to be adjusted, press the channel up
or down button. To adjust the reference value, press the volume up or down
button. To exit from the service mode or the design mode, press the power
button to turn off the receiver.
SELF DIA SELF DIAGNOSTIC FUNCTION SELF DIA GNOSTIC FUNCTION GNOSTIC FUNCTION GNOSTIC FUNCTION
SELF DIA SELF DIA GNOSTIC FUNCTION
Enter the service mode. Press the 9 button on the remote to check for
proper execution of IC interfacing. The following is an explanation of what
is displayed on screen:
Displa Displa Displa Display y y y y Displa Explanation Explanation Explanation Explanation Explanation
[SELF CHECK] Self diagnostic function.
No. 23000868 Part number of QA01.
POWER : 000 Operation number of protecting circuit.
000 display is normal.
BUS LINE : OK BUS line check. OK is normal.
NG indicates a short to ground of
the SCL or SDA signal or a short
between SCL and SDA.
BUS CONT : OK Bus line acknowledge check. OK is
normal. A location number is NG.
NG QA02 indicates QA02 is bad.
BLOCK : MAIN SUB Green display is normal. Cyan display is
no check. Red display is NG. UV is TV
mode, V1 is Video 1 mode, and
V2 is Video 2 mode.
SET ID : 01
EEP VER: 04
OPT1: 80
OPT2: 08
ITEM B ITEM B ITEM B ITEM B ITEM BUTT UTT UTT UTT UTTONS ONS ONS ONS ONS
The following is a list of the buttons on the remote that will go to an item
or perform a different function of the service mode:
1 RCUT 5 COLC
2 GCUT 6 TNTC
3 BCUT 8 Toggles audio test signal on and off.
4 SCNT 9 Self diagnostics

MISCELLANEOUS ADJUSTMENTS

SER SERVICE MODE ADJUSTMENT CHAR SER SER SER VICE MODE ADJUSTMENT CHAR VICE MODE ADJUSTMENT CHAR VICE MODE ADJUSTMENT CHAR VICE MODE ADJUSTMENT CHART T T T T
Adjustment Adjustment Adjustment Adjustment Adjustment Ref Ref Ref Ref Reference erence erence erence erence On Set On Set On Set On Set On Set
Item Item Item Item Item Name Name Name Name Name V V V V V alue alue alue alue alue V V V V V alue alue alue alue alue
RCUT Red Cutoff 80H 84H
GCUT Green Cutoff 80H 80H
BCUT Blue Cutoff 80H 88H
GDRV Green Drive 40H 40H
BDRV Blue Drive 40H 40H
CNTX Sub Contrast Max 7FH 7FH
BRTC Sub Brightness 80H 80H
COLC Sub Color 50H 50H
TNTC Sub Tint 44H 3AH
SCOL Sub Color 05H 08H
SCNT Sub Contrast 10H 0FH
HPOS Horizontal Position 16H 15H
VPOS Vertical Position 00H 00H
HIT Height 64H 61H
LIN Vertical Linearity 12H 13H
VSC V-S Correction 10H 10H
VPS Vertical Shift 18H 18H
VCP Vert Compensation 0AH 0AH
WID Width 28H 2CH
PARA E-W Parabola 29H 29H
CNR E-W Corner 08H 08H
TRAP Trapezium 10H 10H
HCP Horiz Compensation 00H 00H
VFC V-F Correction 00H 00H
PHUE PIP Tint 00H 00H
PCNT PIP Contrast 00H 00H
PCOL PIP Color 0FH 0FH
RGBB RGB Bright 54H 54H
PROF PIP R Offset 00H 00H
PBOF PIP B Offset 00H 00H
PGOF PIP G Offset 00H 00H
STRH Start H 67H 67H
STRP Start Ptn 88H 87H
VLD VLD 41H 42H
VCEN Vert Position 81H 8DH
OPT1 Option 1 80H 80H
OPT2 Option 2 08H 08H
TVOP TV Option 00H 00H
INITIALIZA INITIALIZA INITIALIZA INITIALIZATION OF QA02 INITIALIZA TION OF QA02 TION OF QA02 TION OF QA02 TION OF QA02
NOTE: QA02 must be initialized after replacement.
Enter the service mode. Press and hold the recall button on the remote
while simultaneously pressing the channel up button on the receiver. The
initialization of QA02 is complete. Program channels into memory.
SUB COLOR (COLC) & SUB TINT (TNTC) SUB COLOR (COLC) & SUB SUB COLOR (COLC) & SUB SUB COLOR (COLC) & SUB SUB COLOR (COLC) & SUB TINT (TNTC) TINT (TNTC) TINT (TNTC) TINT (TNTC)
Tune in a color bar pattern. Set contrast to maximum and brightness to
midrange. Connect an oscilloscope to the red cathode. Enter the service
mode. Select item COLC and adjust reference value to obtain 150Vp-p.
Tune in an active channel. Select item TNTC and adjust reference value for
proper flesh tones.
SUB BRIGHTNESS (BRTC) SUB BRIGHTNESS (BR SUB BRIGHTNESS (BR SUB BRIGHTNESS (BR SUB BRIGHTNESS (BR TC) TC) TC) TC)
Tune in a picture. Set contrast to MINIMUM. Enter the service mode.
Select item BRTC, adjust reference value until vertical retrace line just
disappears. Adjust contrast for normal picture. Perform Height (HIT)
adjustment.
HORIZONT HORIZONT HORIZONT HORIZONT HORIZONTAL POSITION (HPOS) & AL POSITION (HPOS) & AL POSITION (HPOS) & AL POSITION (HPOS) & VER AL POSITION (HPOS) & VER VER VER VERTICAL POSITION TICAL POSITION TICAL POSITION TICAL POSITION TICAL POSITION
(VPOS) (VPOS) (VPOS) (VPOS) (VPOS)
Enter the service mode. Press the TV/video button on remote until a
crossbar pattern is displayed. Select item HPOS or VPOS and adjust
reference value for the horizontal and vertical position alternately until the
pattern is centered on the screen. Check the position of the picture with off-
air signal.
HEIGHT (HIT) HEIGHT (HIT) HEIGHT (HIT) HEIGHT (HIT) HEIGHT (HIT)
Enter the service mode. Press the TV/video button on remote until a
crosshatch pattern is displayed. Select item HIT and adjust reference value
for slight underscan. Advance the data value by 8 steps and check the
vertical position of the picture.
WIDTH (WID) WIDTH (WID) WIDTH (WID) WIDTH (WID) WIDTH (WID)
Enter the service mode. Press the TV/video button on remote until a
crosshatch pattern is displayed. Select item WID, adjust reference value for
slight underscan. Advance the reference value by 7 steps. Check for proper
horizontal position of the picture.
E-W PARABOLA (DPC) E-W P E-W P E-W P E-W P ARABOLA (DPC) ARABOLA (DPC) ARABOLA (DPC) ARABOLA (DPC)
Enter the service mode. Press the TV/video button on remote until a
crosshatch pattern is displayed. Select item DPC, adjust reference value for
straight vertical lines on both sides of the pattern.
WHITE B WHITE BALANCE (RCUT WHITE B WHITE B WHITE B ALANCE (RCUT ALANCE (RCUT ALANCE (RCUT ALANCE (RCUT, , , , , GCUT GCUT GCUT GCUT, , , , , BCUT GCUT BCUT, , , , , GDR BCUT BCUT BCUT GDR GDR GDRV V V V V , , , , , BDR GDR BDR BDR BDR BDRV) V) V) V) V)
Turn receiver on. Allow a 10 to 30 minute warm up time. Adjust contrast to
center and brightness to maximum. Enter the service mode. Press the TV/
video button on remote until the white screen pattern is displayed. Select
items RCUT, GCUT, BCUT, GDRV, and BDRV and set the reference value
for each to 40H. Press the video button on the remote to obtain a single
horizontal line. Advance the screen control until a faint line of one
predominant color appears on the screen. Adjust the other two cutoff items
to obtain a dim white line. Press the video button on the remote to get full
deflection. Select items GDRV and BDRV and adjust reference value of
each for the best black and white picture on screen.
CONVERGENCE ADJUSTMENT CONVERGENCE ADJUSTMENT CONVERGENCE ADJUSTMENT CONVERGENCE ADJUSTMENT CONVERGENCE ADJUSTMENT
Select the Adjustment mode RCUT, GCUT, or BCUT of the service mode.
Adjust convergence from center to circumference in order. Press "7" button
to display the built-in crosshatch pattern, it includes the three colors (R, G,
B). The cursor should be blinking in Red, this means that the Red conver-
gence around the cursor can be done. Press "3" button to select the Green
color to be adjusted. Press "2" up, "8" down, "4" left, "6" right to move
the cursor to other point to be adjusted. Press "5" button to stop the cursor
from blinking, or to start the cursor blinking again. If necessary a specified
color line can be erased from the screen, press "100" button to erase Red
line. Press "0" button to erase Green line. Press "ENT" or "RTN" button to
erase Blue line. Repeat these steps to adjust the Red and Blue colors.
Converge the selected color into the Green line. Press "7" button to save the
adjustment changes. Press "7" button again to return to normal picture.

SERVICE PRECAUTIONS

Do not use a magnetized screw driver for screws of Deflection Yoke and
Velocity Modulation Coil, to avoid magnetization of electron gun.
Magnetization of electron gun will degrade basic function, and result in
unbalance of right and left shift of user static convergence, and result in no
variable quantity.
When replacing a CRT:
DO NOT LOOSEN OR ADJUST ANY OF THE HEX HEAD SCREWS.
These screws are for sealing of CRT coolant fluid, loosening any of
these screws will cause fluid leakage.
When replacing the anode cap assembly, or the anode lead assembly
remove the anode lead holder from old assembly and attach it to the new
anode lead, and make sure the point of the anode lead would be straight
coming out of the lead holder.
PF GOLD 15 PF GOLD 15 PF GOLD 15 PF GOLD 15 PF GOLD 15 P P Pa a a a a g g g g g e 1 P P e 1 e 1 e 1 e 1