Agc Center Level And Apc & Aeq Adjustment; Preparations Before Adjustments; Agc Center Level Adjustment (Vc-256 Board); Apc & Aeq Adjustment (Vc-256 Board) - Sony HANDYCAM DCR-TRV130E Service Manual

5. AGC Center Level and APC & AEQ Adjustment

5-1. Preparations before adjustments

Mode Camera recording
Subject Arbitrary
Note: Use a Hi8 MP tape.
Adjusting method:
Order Page Address Data
1 0 01 01
2 8 2A C8
3

5-2. AGC Center Level Adjustment (VC-256 Board)

Mode Playback
Signal Recorded signal at "Preparations
before adjustments"
Measurement Point PB RF (MON) (Pin 9 of CN1011) (Note 1)
Ext. trigger: SWP (Pin qh of CN1011)
Measuring Instrument Oscilloscope
Adjustment Page C
Adjustment Address 1E
Specified Value The data of page: 3, address: 03 is "00"
Note 1: Connect a 75 resistor between PB RF (MON) and GND of CPC
jig.
75 resistor (Parts code: 1-247-804-11)
Adjusting method:
Order Page Address Data
1
2 0 01 01
3 2 2E 01
4 3 33 08
5
6 3 01 23
7 3 02
8 3 03
9
Note 2: If the data of page: 3, address: 03 is other than "00", adjustment
has errors.
PB RF signal is stable
PB RF
SWP
Fig. 5-3-4.
Procedure
Set the data.
Set the data.
Record the camera signal for three
minutes.
Procedure
Playback the recorded signal at
"Preparations before adjustments"
Set the data.
Set the data.
Set the data.
Confirm that the playback RF
signal is stable. (Fig. 5-3-4.)
Set the data, and press PAUSE button.
Check that the data is "00".
Check that the data is "00".
(Note2)
Perform "APC & AEQ Adjustment".
6.6 msec
5-3. APC & AEQ Adjustment (VC-256 Board)
Mode
Signal
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note 1: Connect a 75 resistor between PB RF (MON) and GND of CPC
jig.
75 resistor (Parts code: 1-247-804-11)
Note 2: The "AGC Center Level Adjustment" must have already been
completed before starting this adjustment.
Adjusting method:
Order Page Address Data
1 0 01
2 C 18
3 C 19
4 C 1B
5 C 1C
6 C 21
7 C 2C
8
9 2 2E
10 3 33
11
12 3 01
13 3 02
14 3 03
15
Note 3: If the data is other than "00", adjustment has errors.
PB RF
SWP
5-42
Playback
Recorded signal at "Preparations
before adjustments"
PB RF (MON) (Pin 9 of CN1011) (Note 1)
Ext. trigger: SWP (Pin qh of CN1011)
Oscilloscope
C
18, 19, 1B, 1C, 21, 2C
The data of page: 3, address: 03 is "00"
Procedure
01 Set the data.
25 Set the data, and press PAUSE button.
25 Set the data, and press PAUSE button.
25 Set the data, and press PAUSE button.
25 Set the data, and press PAUSE button.
CA Set the data, and press PAUSE button.
03 Set the data, and press PAUSE button.
Playback the recorded signal at
"Preparations before adjustments"
01
08 Set the data.
Confirm that the playback RF
signal is stable. (Fig. 5-3-5.)
07 Set the data, and press PAUSE button.
Check that the data changes from
"07" to "00" in about 20 seconds
after pressing PAUSE button.
Check that the data is "00".
(Note3)
Perform "Processing after
Completing Adjustments".
PB RF signal is stable
6.6 msec
Fig. 5-3-5.