Sony Glasstron Lite PLM-A35E Service Manual page 19

[B Contrast Adjustment]
Condition:
10 step signal, 1 Vp-p
Input signal
(White: 100%)
Measurement point RG-A01 board CN803 pin 3
Measuring equipment Oscilloscope
Adjustment page D
Adjustment address 1B
Specified value 2.4 ± 0.1 Vp-p
Connection:
RG-A01 Board
CN803 pin 3 (B OUT)
CN803 pin 1 (GND)
Adjustment Procedure:
(1) Connect an oscilloscope to the CN803 pin 3 (B OUT) and
pin 1 (GND) on the RG-A01 board.
(2) Set (or confirm) data: 01 to page: 1, address: 00.
(Cancel D page protect)
(3) On page: D, address: 1B, change data with the PLAY and
STOP buttons and press the PAUSE button to write data so
that the E level of waveform on the oscilloscope satisfies
the specified value.
Black level
E
White level
Adjustment and Connection Location: RG-A01 board
Oscilloscope
(DC range)
+
–
(see page 3-14)
3-9
[B Brightness Adjustment]
Condition:
10 step signal, 1 Vp-p
Input signal
(White:100%)
Measurement point RG-A01 board CN803 pin 3
Measuring equipment Oscilloscope
Adjustment page D
Adjustment address 16
Specified value 8.4 ± 0.1 Vp-p
Connection:
RG-A01 Board
CN803 pin 3 (B OUT)
CN803 pin 1 (GND)
Adjustment Procedure:
(1) Connect an oscilloscope to the CN803 pin 3 (B OUT) and
pin 1 (GND) on the RG-A01 board.
(2) Set (or confirm) data: 01 to page: 1, address: 00.
(Cancel D page protect)
(3) On page: D, address: 16, change data with the PLAY and
STOP buttons and press the PAUSE button to write data so
that the F level of waveform on the oscilloscope satisfies
the specified value.
Black level
F
Black level
Adjustment and Connection Location: RG-A01 board
Oscilloscope
(DC range)
+
–
(see page 3-14)
Confidential
PLM-A35E (AEP)