Sony RM-PJ25, Service Manual

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2-1 (E)
VPL-HW40ES
Section 2
Electrical Adjustments
2-1. Preparations
2-1-1. Required Equipment
.
Oscilloscope
Tektronix 2465 or equivalent
(bandwidth: 350 MHz or more)
.
NTSC, PAL, SECAM component signal generator
Tektronix TG2000
+
AVG1 (optional module)
+
AWVG1 (optional module) or equivalent
.
VG (Programmable video signal generator)
Astro VG849C or equivalent
.
Digital voltmeter
Advantest TR6845 or equivalent
.
Luminance meter
.
Chrominance difference gauge
n
Perform the following adjustments at least 15 minutes after turning on the power.
2-1-2. How to Enter the Service Mode
1. Set the “Status” to “On” in the “Setup” MENU.
2. Close the menu by pressing
[MENU]
button if its displayed.
3. Press the buttons in the following order in 5 seconds:
“ ” → “ ” → “ ” → “ ”
4. The message “Do you wish to enter into the SERVICE MODE? Yes No” will be displayed.
5. Select
“Yes”.
n
When leaving the SERVICE MODE, perform step 3.
“Do you wish to return to the USER MODE? Yes No” will be displayed. Select “Yes”.
.
Note that when the items (W/B, Device Adjust) that can be adjusted in the Service mode are adjusted
and stored in memory, they are saved in NVM and the factory default data will be lost.
.
Be sure to perform “Save to memory” after entering and exiting the Gamma adjustment mode. If the
values are changed in the Gamma adjustment mode and you want to reset to the original value, turn off
the power of the unit and turn it on again.