Display (Cf-69/70/72 Board) - Sony DCR-TRV320 Service Manual

DCR-TRV320/TRV320E/TRV320P/TRV420E/TRV520/TRV520E/TRV520P/TRV525
1-5. LCD ELECTRONIC VIEWFINDER SYSTEM
ADJUSTMENTS
(DCR-TRV320E: AEP, UK, EE, NE, RU/
TRV420E: AEP/TRV520E: AEP/TRV525/
TRV620E/TRV720/TRV720E)
2. EVF Initial Data Input (2)
(Service manual page 5-30)
Data
Address
COLOR B/W
92 80 80
93 70 70
94 26 26
95 A0 A0
96 0F 0F
97 80 80
98 80 80
99 30 30
9A 80 80
9B 90 90
9C D0 D0
9D 10 10
; ;
9E 90 90
9F 9F 98
] ]
B0 FC FC
B2 FF FF
6. Backlight Consumption Current Adjustment
(VF-141 board)
(Service manual page 5-32)
8) Select page: D, address: 9E, change the data, and set the votage
difference (A) between Pin 0 of CN1108 (EVF BL 4.6V) and
Pin 9 of CN1108 (EVF BL) to the specified value of NORMAL
mode.
(The data of address: 9D, should be "80" to "9F")
Remark
VCO adj.
VCO adj. (PAL model)
Fixed data (NTSC model)
Fixed data
RGB AMP adj.
Fixed data
White balance adj.
(COLOR LCD EVF model)
Fixed data
(B/W LCD EVF model)
Contrast adj.
Fixed data
Backlight consumption
current adj.
Fixed data
] ]
– 9 –
TRV620E/TRV720/TRV720E
1-6. LCD SYSTEM ADJUSTMENTS
5. Contrast Adjustment (PD-117/118 board)
(Service manual page 5-35)
Set the level of the VIDEO signal for driving the LCD to the specified
value. If deviated, the screen image will be blackish or saturated
(whitish).
Mode Camera
Subject Arbitrary
Measurement Point Pin 3 of CN5502 (VG)
External trigger : Pin 4 of CN5502
(PANEL COM)
Measuring Instrument Oscilloscope
Adjustment Page D
Adjustment Address AA
Specified Value A=3.47 ± 0.07 Vp-p
(2.5 LCD TYPE S 61 k model)
A=3.34 ± 0.07 Vp-p
(
2.5 LCD TYPE S 123 k model
3/3.5/4 LCD TYPE S model
A=2.80 ± 0.07 Vp-p
(2.5 LCD TYPE C 61 k model)
A=3.00 ± 0.07 Vp-p
(3.5/4 LCD TYPE C model)
7. V-COM Adjustment (PD-117/118 board)
(Service manual page 5-36)
Set the DC bias of the common electrode drive signal of LCD to the
specified value.
If deviated, the LCD display will move, producing flicker and
conspicuous vertical lines.
Mode Camera
Subject Arbitrary
Measurement Point Check on LCD display
Measuring Instrument
Adjustment Page D
Adjustment Address A4
Note: Perform "RGB AMP Adjustment", "Contrast Adjustment"
and "COM AMP Adjustment" before this adjustment.
]
\
)
[