Read Sony XAV-7W (serv.man2) Service Manual online
16
XAV-7W
7.5V ADJUSTMENT
Connection:
Adjusting Procedure:
1. Connect a digital voltmeter to the TP58 on the MONITOR
1. Connect a digital voltmeter to the TP58 on the MONITOR
board.
2. Adjust the RV501 so that the reading of digital voltmeter is
7.50
± 0.04 V.
INVERTER VOLTAGE ADJUSTMENT
Connection:
Adjusting Procedure:
1. Connect a digital voltmeter to the TP64 on the MONITOR
1. Connect a digital voltmeter to the TP64 on the MONITOR
board.
2. Adjust the RV602 so that the reading of digital voltmeter is
6.80
± 0.04 V.
γ
2 ADJUSTMENT
Connection:
Adjusting Procedure:
1. Connect a digital voltmeter to the TP67 on the MONITOR
1. Connect a digital voltmeter to the TP67 on the MONITOR
board.
2. Adjust the RV213 so that the reading of digital voltmeter is
2.50
± 0.04 V.
EQUIPMENT USED
Use the following measuring equipment for the electrical
adjustment.
• Set (XAV-7W)
• Connection box (XA-114)
• PAL pattern generator
• Oscilloscope
• Frequency counter
• Digital voltmeter
• Regulated power supply
adjustment.
• Set (XAV-7W)
• Connection box (XA-114)
• PAL pattern generator
• Oscilloscope
• Frequency counter
• Digital voltmeter
• Regulated power supply
SETUP FOR ADJUSTMENT
1. Open the monitor, and press the
[MENU]
button on the wireless
remote commander (RM-X118), and select the “MONITOR
TUNE” with the
TUNE” with the
M
DISC +
or
m
DISC –
button. Then, select
the “COLOR”, “HUE” with the
M
DISC +
or
m
DISC –
button,
and set the COLOR and HUE to the standard setting by pressing
the
the
[ENTER]
button for more than 2 seconds respectively.
2. For the monitor adjustment, use the 5-step gray scale signal
(chroma off) obtained from the pattern generator. Enter the
gray scale signal to the connection box (XA-114) and connect
an oscilloscope to the TP154 on the MONITOR board. Check
that the voltage between black and white of the gray scale signal
is 0.74Vp-p.
gray scale signal to the connection box (XA-114) and connect
an oscilloscope to the TP154 on the MONITOR board. Check
that the voltage between black and white of the gray scale signal
is 0.74Vp-p.
DC/DC FREQUENCY ADJUSTMENT
Connection:
Adjusting Procedure:
1. Connect a frequency counter to the TP88 on the MONITOR
1. Connect a frequency counter to the TP88 on the MONITOR
board.
2. Adjust the RV900 so that the reading of frequency counter is
145
± 1 kHz.
5V ADJUSTMENT
Connection:
Adjusting Procedure:
1. Connect a digital voltmeter to the TP57 on the MONITOR
1. Connect a digital voltmeter to the TP57 on the MONITOR
board.
2. Adjust the RV503 so that the reading of digital voltmeter is
5.00
± 0.04 V.
SECTION 5
ELECTRICAL ADJUSTMENTS
white
black
0.74Vp-p
+
–
–
TP152 (GND)
TP88
set
(XAV-7W)
frequency
counter
digital
voltmeter
TP152 (GND)
TP57
set
(XAV-7W)
+
–
–
degital
voltmeter
TP152 (GND)
TP58
set
(XAV-7W)
+
–
–
+
–
–
degital
voltmeter
TP152 (GND)
TP64
set
(XAV-7W)
+
–
–
degital
voltmeter
PAL pattern
generator
TP152 (GND)
TP67
set
(XAV-7W)
connection box
(XA-114)
INPUT1
VIDEO jack
Click on the first or last page to see other XAV-7W (serv.man2) service manuals if exist.