Sony DCR-IP45 / DCR-IP45E / DCR-IP55 / DCR-IP55E (serv.man2) Service Manual ▷ View online
5-59
DCR-IP45/IP45E/IP55/IP55E
3. S VIDEO OUT Chroma Level Adjustment
(VC-291 Board)
Mode
Camera
Subject
Arbitrary
Measurement Point
Chroma signal terminal of S VIDEO
plug of A/V jack (75W terminated)
External trigger: Y signal terminal of
S VIDEO plug of A/V jack
plug of A/V jack (75W terminated)
External trigger: Y signal terminal of
S VIDEO plug of A/V jack
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
95, 96
Specified Value
Cr level:
A = 714
± 14mV(NTSC)
A = 700
±14mV(PAL)
Cb level:
B = 714
± 14mV(NTSC)
B = 700
± 14mV(PAL)
Burst level: C = 286
± 6mV(NTSC)
C = 300
± 6mV(PAL)
Note1: The data of page: 0, address: 10 must be “00”.
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
3
02
FE
Set the data.
3
3
00
07
Set the data, and press PAUSE button.
4
3
07
Check that bit1 of the data
changes to “1”. (Note2)
changes to “1”. (Note2)
5
C
95
Change the data and set the Cr signal
level (A) to the specified value.
level (A) to the specified value.
6
C
95
Press PAUSE button.
7
C
96
Change the data and set the Cb signal
level (B) to the specified value.
level (B) to the specified value.
8
C
96
Press PAUSE button.
9
3
00
00
Set the data, and press PAUSE button.
10
3
02
00
Set the data.
11
0
01
00
Set the data.
12
Check that the burst signal level
(C) satisfies the specified value.
(C) satisfies the specified value.
Note2: For the bit values, refer to “5-4. SERVICE MODE”, “4-3. 3. Bit
value discrimination”.
4. VIDEO OUT Y, Chroma Level Check (VC-291 Board)
Mode
Camera
Subject
Arbitrary
Measurement Point
Video terminal of VIDEO plug of A/V
jack (75
jack (75
Ω terminated)
Measuring Instrument
Oscilloscope
Specified Value
Sync level: A = 286
± 18mV(NTSC)
A = 300
± 18mV(PAL)
Burst level: B = 286
± 18mV(NTSC)
B = 300
± 18mV(PAL)
Note1: The data of page: 0, address: 10 must be “00”.
Adjusting method:
Order Page Address Data
Procedure
1
3
02
FE
Set the data.
2
3
00
07
Set the data, and press PAUSE
button.
button.
3
3
07
Check that bit1 of the data
changes to “1”. (Note2)
changes to “1”. (Note2)
4
Check that the sync signal level
(A) satisfies the specified value.
(A) satisfies the specified value.
5
Check that the burst signal level
(B) satisfies the specified value.
(B) satisfies the specified value.
6
3
00
00
Set the data, and press PAUSE
button.
button.
7
3
02
00
Set the data.
Note2: For the bit values, refer to “5-4. SERVICE MODE”, “4-3. 3. Bit
value discrimination”.
Fig. 5-3-7.
Fig. 5-3-8.
H
A
0.28
µsec (NTSC)
0.23
µsec (PAL)
B
0.28
µsec (NTSC)
0.23
µsec (PAL)
H
C
H
B
A
5-60
DCR-IP45/IP45E/IP55/IP55E
3-5.
AUDIO SYSTEM ADJUSTMENTS
Switch setting:
POWER ........................................................................... VCR
VIDEO INPUT (Menu setting) .................................. VIDEO
VIDEO INPUT (Menu setting) .................................. VIDEO
[Connection of Audio System Measuring Devices]
Connect the audio system measuring devices as shown in Fig. 5-
3-9.
Connect the audio system measuring devices as shown in Fig. 5-
3-9.
Note: In recording mode, input a color bar signal to the video input.
Fig. 5-3-9.
Recording (VTR mode)
Audio oscillator
Attenuator
600
Ω
Main unit
A/V
600
Ω: 270 Ω (1-249-410-11) + 330 Ω (1-249-411-11)
Main unit
Left (White)
Right
47k
Ω
47k
Ω
Video (Yellow)
TV monitor
Audio level meter
or Distortion meter
47k
Ω (1-249-437-11)
Playback
A/V
(Red)
Video
(Yellow)
(Yellow)
Left
(White)
(White)
Right
(Red)
(Red)
Pattern generator
Video output
(75
(75
Ω)
5-61
DCR-IP45/IP45E/IP55/IP55E
1. Overall Level Characteristics Check
Mode
Recording and playback
Signal
400Hz, –7.5dBs signal:
AUDIO L and AUDIO R terminal of
A/V jack
AUDIO L and AUDIO R terminal of
A/V jack
Measurement Point
AUDIO L and AUDIO R terminal of
A/V jack
A/V jack
Measuring Instrument
Audio level meter
Specified Value
–7.5
± 1.0dBs
Checking Method:
1)
1)
Input the 400Hz, –7.5dBs signal in the AUDIO L and AUDIO
R terminal.
R terminal.
2)
Record in the signal.
3)
Playback the recorded section.
4)
Check that the 400Hz signal level is the specified value.
2. Overall Distortion Check
Mode
Recording and playback
Signal
400Hz, –7.5dBs signal:
AUDIO L and AUDIO R terminal of
A/V jack
AUDIO L and AUDIO R terminal of
A/V jack
Measurement Point
AUDIO L and AUDIO R terminal of
A/V jack
A/V jack
Measuring Instrument
Audio distortion meter
Specified Value
Below 0.4%
(200Hz to 6kHz BPF ON)
(200Hz to 6kHz BPF ON)
Checking Method:
1)
1)
Input the 400Hz, –7.5dBs signal in the AUDIO L and AUDIO
R terminal.
R terminal.
2)
Record in the signal.
3)
Playback the recorded section.
4)
Check that the distortion is the specified value.
3. Overall Noise Level Check
Mode
Recording and playback
Signal
No signal:
AUDIO L and AUDIO R terminal of
A/V jack
AUDIO L and AUDIO R terminal of
A/V jack
Measurement Point
AUDIO L and AUDIO R terminal of
A/V jack
A/V jack
Measuring Instrument
Audio level meter
Specified Value
Below –45dBs
(IHF-A filter ON, 20kHz LPF ON)
(IHF-A filter ON, 20kHz LPF ON)
Checking Method:
1)
1)
Insert shorting plugs in each of AUDIO L and AUDIO R
terminal.
terminal.
2)
Record in the signal.
3)
Remove the shorting plugs.
4)
Playback the recorded section.
5)
Check that the noise level is the specified value.
5-62
DCR-IP45/IP45E/IP55/IP55E
5-4. SERVICE MODE
4-1.
ADJUSTMENT REMOTE COMMANDER
The adjustment remote commander is used for changing the
calculation coefficient in signal processing, EVR data, etc. The
adjustment remote commander performs bi-directional
communication with the unit using the remote commander signal
line (LANC). The resultant data of this bi-directional communication
is written in the non-volatile memory.
calculation coefficient in signal processing, EVR data, etc. The
adjustment remote commander performs bi-directional
communication with the unit using the remote commander signal
line (LANC). The resultant data of this bi-directional communication
is written in the non-volatile memory.
1. Using the adjustment remote commander
1)
1)
Connect the adjustment remote commander to the LANC jack.
2)
Set the HOLD switch of the adjustment remote commander to
“HOLD” (SERVICE position). If it has been properly
connected, the LCD on the adjustment remote commander will
display as shown in Fig. 5-4-1.
“HOLD” (SERVICE position). If it has been properly
connected, the LCD on the adjustment remote commander will
display as shown in Fig. 5-4-1.
Fig. 5-4-1
3)
Operate the adjustment remote commander as follows.
• Changing the page
• Changing the page
The page increases when the EDIT SEARCH+ button is
pressed, and decreases when the EDIT SEARCH– button is
pressed. There are altogether 19 pages, 0 to F, 1B, 1E and
1F.
pressed, and decreases when the EDIT SEARCH– button is
pressed. There are altogether 19 pages, 0 to F, 1B, 1E and
1F.
• Changing the address
The address increases when the FF (M) button is pressed,
and decreases when the REW (m) button is pressed. There
are altogether 256 addresses, from 00 to FF.
and decreases when the REW (m) button is pressed. There
are altogether 256 addresses, from 00 to FF.
• Changing the data (Data setting)
The data increases when the PLAY (N) button is pressed,
and decreases when the STOP (x) button is pressed. There
are altogether 256 data, from 00 to FF.
and decreases when the STOP (x) button is pressed. There
are altogether 256 data, from 00 to FF.
• Writing the adjustment data
The PAUSE button must be pressed to write the adjustment
data (4, 8, 9, A, B, C, D, E, F, 1B, 1E, 1Fpage) in the
nonvolatile memory. (The new adjusting data will not be
recorded in the nonvolatile memory if this step is not
performed.)
data (4, 8, 9, A, B, C, D, E, F, 1B, 1E, 1Fpage) in the
nonvolatile memory. (The new adjusting data will not be
recorded in the nonvolatile memory if this step is not
performed.)
4)
After completing all adjustments, turn off the main power
supply once.
supply once.
Note: When reading or writing the 1B, 1E, 1F page data, select page: 0,
address: 10, and set data: 01, then select B, E or F page. The 1B, 1E
or 1F page can be chosen by this data setting.
After reading or writing, reset the data of page: 0, address: 10 to
“00”.
or 1F page can be chosen by this data setting.
After reading or writing, reset the data of page: 0, address: 10 to
“00”.
Hexadecimal
notation
notation
LCD Display
Decimal notation
conversion value
conversion value
0 1 2 3 4 5 6 7 8 9 A B C D E F
0 1 2 3 4 5 6 7 8 9 A b c d E F
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
2. Precautions upon using
the adjustment remote commander
Mishandling of the adjustment remote commander may erase the
correct adjustment data at times. To prevent this, it is recommended
that all adjustment data be noted down before beginning adjustments
and new adjustment data after each adjustment.
correct adjustment data at times. To prevent this, it is recommended
that all adjustment data be noted down before beginning adjustments
and new adjustment data after each adjustment.
Page
Data
Address
