Miscellaneous Adjustments - Toshiba PHOTOFACT SILVER CZ36V61 Technical Service Data

HIGH VOLTAGE CHECK
Tune in a picture. Set brightness, contrast, and color to minimum. Connect a high
voltage probe to the CRT anode. Model CZ32V61: high voltage should read 31kV
to 32.4kV. Model CZ36V61: high voltage should read 31.9kV to 33.3kV.
ENTERING THE SERVICE 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.
To enter the design mode, enter the service mode and press and hold the recall
button while simultaneously pressing the menu button on the receiver. The letter D
will appear on the screen indicating that the receiver is in the design mode. No
items are to be adjusted according to the manufacturer. No information available
for option codes.
When in the service mode or design 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.
TEST SIGNAL SELECTION
Enter the service mode. Press the menu button on the receiver to display the
adjustment menu. Press the TV/video button on the remote to display the built-in
test patterns in the following order:
Normal picture, red raster, green raster, blue raster, black screen, white screen,
black screen with white window, black cross bar, white cross bar, black crosshatch,
white crosshatch, black crossdot, white crossdot, white h signal, black h signal,
black cross bar on green raster, and back to normal picture. In some models the
audio test signal may not work with the white h signal, black h signal, black cross
bar on green raster test patterns.
NOTE: If a video cable is connected to the video input jack, the built-in test
patterns will not be displayed on the screen.
SELF DIAGNOSTIC 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:
Display Explanation
[SELF CHECK] Self diagnostic function.
No. 23905036 Part number of QA01.
POWER : 000 Operation number of protecting circuit.
000 display is normal.
BUS LINE : OK BUS line check. OK is normal.
SCL-GND indicates a short to ground of
the SCL signal. SDA-GND indicates a
short to ground of the SDA signal.
SCL-SDA indicates a short between
SCL and SDA signals.
BUS CONT : OK Bus line acknowledge check. OK is
normal. A location number is NG.
QA02 NG indicates QA02 is bad.
BLOCK : UV V1 V2 Green display is normal. Cyan display is
QV01 QV01S no check. Red display is NG. UV is TV
mode, V1 is Video 1 mode, and
V2 is Video 2 mode. UV, V1, and V2
may not be used in some models.
To initialize the self diagnostic data, press and hold the recall button on the remote
while simultaneously pressing the channel down button on the receiver.

MISCELLANEOUS ADJUSTMENTS

INITIALIZATION OF QA02
NOTE: QA02 must be initialized after replacement. Do not initialize QA02 unless
it has been replaced.
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.
ITEM BUTTONS
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
SUB COLOR (COLC) & SUB 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)
Tune in a picture. Set contrast to minimim and brightness to center. 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.
HORIZONTAL POSITION (HPOS) /
VERTICAL POSITION (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)
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 9 steps and check the vertical position of the
picture.
WIDTH (WID)
Enter the service mode. Press the TV/video button on reme 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)
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 BALANCE (RCUT, GCUT, BCUT, GDRV, BDRV)
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
TV/video button on the receiver 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 TV/video
button on the receiver to get full deflection. Select items GDRV and BDRV and
adjust reference value of each for the best black and white picture on screen.
COLOR PURITY / CONVERGENCE
The yoke is bonded to the CRT. Color purity and convergence adjustments are not
recommended.
STEREO
Enter the service mode.
Attenuator (ATT)
Select item ATT. Input a 1kHz, 30% modulated signal. Connect a RMS meter to
pin 12 of H002. Adjust reference value to obtain a reading of 130mVrms.
Stereo VCO (STVC)
Select item STVC. Connect a frequency counter to pin 12 of H002 and connect pin
9 to ground. Adjust reference value to obtain a reading of 62.936kHz.
SAP VCO (SAVC)
Select item SAVC. Input 78.67kHz, 147mVrms to pin 9 of H002. Input a mono
signal. Adjust reference value for a reading in the center of the range for STA7=0
and STA8=1.
Stereo Filter (STRF)
Select item STRF. Input 9.4kHz, 600mVrms to pin 9 of H002. Input a mono signal.
Adjust reference value for a reading in the center of the range for STA3=1.
SAP Filter (SAPF)
Select item SAPF. Input 88kHz, 110mVrms to pin 9 of H002. Input a mono signal.
Adjust reference value for a reading in the center of the range for STA4=1.
Stereo Separation (WBAN) / Spectral (SPEC)
Select item WBAN. Input 300Hz, right channel signal. Select stereo mode on
receiver. Connect an oscilloscope to pin 14 of H002. Adjust reference value for
minimum amplitude of waveform. Select item SPEC. Input 3kHz, right channel
signal. Adjust reference value for minimum amplitude of waveform.
Audio Test Signal
Enter the service mode. Press the 8 button on remote transmitter to toggle the audio
test signal (1kHz) on and off.
SET 5266
SERVICE MODE ADJUSTMENT CHART
Adjustment Direct Preset 32”
Item Name Button Value Value
RCUT Red Cutoff 1 40H 40H
GCUT Green Cutoff 2 40H 40H
BCUT Blue Cutoff 3 40H 40H
GDRV Green Drive - 40H 40H
BDRV Blue Drive - 40H 40H
SCNT Sub Contrast 4 08H 08H
BRTC Sub Brightness - 40H 40H
COLC Sub Color 5 40H 40H
TNTC Sub Tint 6 40H 40H
SAVC SAP VCO - 88H 88H
ATT Attenuator - 08H 08H
SAPF SAP Filter - 88H 88H
STVC Stereo VCO - 1CH 1CH
STRF Stereo Filter - 16H 16H
SPEC Spectral - 30H 30H
WBAN Stereo Separation - 22H 22H
HPOS Horizontal Position - 16H 16H
VPOS Vertical Position - 03H 03H
HIT Height - 1EH 1EH
LIN Vertical Linearity - 07H 06H
VSC Vertical S Correction - 01H 04H
VPS Vertical Shift - 1BH 1BH
VCP Vertical Compensation - 03H 03H
WID Width - 37H 18H
DPC E-W Parabola - 17H 0AH
CNR E-W Corner - 07H 07H
TRAP Trapezium - 0EH 09H
HCP Horizontal Compensation - 00H 00H
VFC Vertical F Correction - 0FH 0FH
PCOL (1) PIP Color - 08H 08H
PHUE (1) PIP Tint - 00H 00H
DAC - - 03H 03H
PGOF (1) - - 00H 00H
PROF (1) - - 0AH 0AH
PBOF (1) - - 0AH 0AH
(1) Adjust to match PIP brightness, white balance, tint, and color to main screen.
Page 1
36”
Value
40H
40H
40H
40H
40H
08H
40H
40H
40H
88H
08H
88H
1CH
16H
30H
22H
16H
03H
1EH
06H
04H
1BH
03H
35H
17H
09H
08H
00H
0FH
08H
00H
03H
00H
0AH
0AH