Sony DCR-PC53E / DCR-PC55 / DCR-PC55E (serv.man4) Service Manual ▷ View online
6-43
DCR-PC53E/PC55/PC55E
3-3.
SERVO AND RF SYSTEM ADJUSTMENT
Before perform the servo and RF system adjustments, check that
the specified value of “36 MHz Origin Oscillation Check” of
“CAMERA SYSTEM ADJUSTMENT” is satisfied.
And check that the data of page: 0, address: 10 is “00”. If not, set
data: 00 to this address.
Note: When adjusting the servo and RF systems, open the LCD
panel and activate the LCD system
the specified value of “36 MHz Origin Oscillation Check” of
“CAMERA SYSTEM ADJUSTMENT” is satisfied.
And check that the data of page: 0, address: 10 is “00”. If not, set
data: 00 to this address.
Note: When adjusting the servo and RF systems, open the LCD
panel and activate the LCD system
Adjusting Procedure:
1.
1.
CAP FG duty adjustment
2.
Switching position adjustment
3.
Error rate check
1. Cap FG Duty Adjustment (VC-379 board)
Set the Cap FG signal duty cycle to 50% to establish an appropriate
capstan servo. If deviated, the uneven rotation of capstan and noise
can occur.
Set the Cap FG signal duty cycle to 50% to establish an appropriate
capstan servo. If deviated, the uneven rotation of capstan and noise
can occur.
Measurement Point
Display data of page: 3, address: 02, 03
Measuring Instrument
Adjustment remote commander
Adjustment Page
C
Adjustment Address
16
Specified Value
Data of page: 3, address: 02 is “00”.
Data of page: 3, address: 03 is “00”.
Data of page: 3, address: 03 is “00”.
Note1: The data of page: 0, address: 10 must be “00”.
Adjusting method:
Order Page Address Data
Procedure
1
Close the cassette compartment
without inserting a cassette.
without inserting a cassette.
2
0
01
01
Set the data.
3
3
01
1B
Set the data, and press PAUSE
button.
button.
4
3
02
Check that the data changes in
the following order.
“1B”
the following order.
“1B”
→
“2B”
→
“00”
5
3
03
Check that the data is “00”.
(Note2)
(Note2)
6
0
01
00
Set the data.
Note2: If the data is “01”, adjustment has errors or the mechanism deck is
defective.
2. Switching Position Adjustment (VC-379 board)
To obtain normal playback waveform output during the playback
mode, adjust the switching position.
mode, adjust the switching position.
Mode
VTR playback (PLAY/EDIT)
Signal
SW/OL reference tape (XH2-3)
Measurement Point
Display data of page: 3, address: 02, 03
Measuring Instrument
Adjustment remote commander
Adjustment Page
C
Adjustment Address
10, 11, 12, 13
Specified Value
Data of page: 3, address: 02 is “00”.
Data of page: 3, address: 03 is “00”.
Data of page: 3, address: 03 is “00”.
Note1: The data of page: 0, address: 10 must be “00”.
Adjusting method:
Order Page Address Data
Procedure
1
Insert the SW/OL reference tape
and enter the VTR STOP mode.
and enter the VTR STOP mode.
2
0
01
01
Set the data.
3
C
10
EE
Set the data, and press PAUSE
button.
button.
4
3
21
Check that the data is “02”.
(Note2)
(Note2)
5
3
01
0D
Set the data, and press PAUSE
button.
button.
6
3
02
Check that the data changes to
“00”.
“00”.
7
3
03
Check that the data is “00”.
(Note3)
(Note3)
8
0
01
00
Set the data.
Note2: If the data of page: 3, address: 21 is “72”, the tape top being played.
After playing the tape for 1 to 2 seconds, stop it, perform step 5
and higher.
If the data of page: 3, address: 21 is “62”, the tape end being played.
After rewinding the tape, perform step 5 and higher.
and higher.
If the data of page: 3, address: 21 is “62”, the tape end being played.
After rewinding the tape, perform step 5 and higher.
Note3: If bit 0 of the data is “1”, the EVEN channel is defective. If bit 1 is
“1”, the ODD channel is defective. Contents of the defect is written
into page: C, addresses: 10 and 12. See the following table. (For
the bit values, refer to “6-4. SERVICE MODE”, “4-3. 4. Bit value
discrimination”. ) If bit 3 of the data is “1”, the tape end being
played, so rewind the tape and perform the adjustment again.
into page: C, addresses: 10 and 12. See the following table. (For
the bit values, refer to “6-4. SERVICE MODE”, “4-3. 4. Bit value
discrimination”. ) If bit 3 of the data is “1”, the tape end being
played, so rewind the tape and perform the adjustment again.
When the EVEN channel is defective
When the ODD channel is defective
Data of page: C,
address: 12
address: 12
EE
E8
E7
Contents of defect
Writing into EEPROM (IC5302) is defective
Adjustment data is out of range
No data is returned from IC4201
Data of page: C,
address: 10
address: 10
EE
E8
E7
Contents of defect
Writing into EEPROM (IC5302) is defective
Adjustment data is out of range
No data is returned from IC6401
6-44
DCR-PC53E/PC55/PC55E
3. Error Rate Check
3-1. Preparations before adjustments
Mode
Camera recording (CAMERA-TAPE)
Subject
Arbitrary
Note1: The data of page: 1C, address: B3 to C8 must be initial value. (See
Table 6-3-4.)
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
0
10
01
Set the data.
3
C
0D
C8
Set the data, and press PAUSE
button.
button.
4
0
10
00
Set the data.
5
Record the camera signal for
two minutes.
two minutes.
3-2. Error Rate Check
Mode
Playback (PLAY/EDIT)
Signal
Recorded signal at “Preparations
before adjustments”
before adjustments”
Measurement Point
Display data of page: 3, address: 02, 03
Measuring Instrument
Adjustment remote commander
Adjustment Page
1C (Note2)
Adjustment Address
B3 to C8
Specified Value
Data of page: 3, address: 02 is “00”.
Data of page: 3, address: 03 is “00”.
Data of page: 3, address: 03 is “00”.
Note2: When reading or writing the 1C page data, select page: 0, address:
10, and set data: 01, then select C page. The 1C page can be chosen
by this data setting.
After reading or writing, reset the data of page: 0, address: 10 to
“00”.
by this data setting.
After reading or writing, reset the data of page: 0, address: 10 to
“00”.
Adjusting method:
Order Page Address Data
Procedure
1
Playback the recorded signal at
“Preparations before
adjustments”
“Preparations before
adjustments”
2
0
01
01
Set the data.
3
0
10
00
Set the data.
4
3
1D
Check that the data is “20”.
5
3
01
40
Set the data, and press PAUSE
button.
button.
6
3
02
Check that the data changes
from “40” to “00”.
from “40” to “00”.
7
3
03
Check that the data is “00”.
(Note3)
(Note3)
8
Perform “Processing after
Completing Adjustments”
Completing Adjustments”
Note3: If the data is other than “00”, Error rate is abnormal.
For the contents of the abnormality, see the following table.
Initial Value of Page 1C: Address: B3 to C8
Data of page: 3,
address: 03
address: 03
01
02
03
Contents of the abnormality
EVEN ch is abnormal.
ODD ch is abnormal.
EVEN ch and ODD ch are abnormal.
Note4: If Error rate is abnormal, Check the use tape, clean the tape running
surface. And after inputting initial values to page 1C: address: B3
to C8, perform re-adjustment. (See Table 6-3-4.)
to C8, perform re-adjustment. (See Table 6-3-4.)
Table 6-3-4.
Note5: When writing the 1C page data, select page: 0, address: 10, and
set data: 01, then select C page.
After writing the initial values, reset the data of page: 0, address:
10 to “00”.
After writing the initial values, reset the data of page: 0, address:
10 to “00”.
3-3. Processing after Completing Adjustments
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
0
10
01
Set the data.
3
C
0D
00
Set the data, and press PAUSE
button.
button.
4
0
01
00
Set the data.
5
0
10
00
Set the data.
Address
B3
B4
B5
B6
B7
B8
B9
BA
Initial
value
00
00
00
00
00
80
00
00
Address
BB
BC
BD
BE
BF
C0
C1
C2
Initial
value
00
00
00
00
00
00
00
00
Address
C3
C4
C5
C6
C7
C8
Initial
value
80
00
00
00
00
00
6-45
DCR-PC53E/PC55/PC55E
3-4.
VIDEO SYSTEM ADJUSTMENTS
Note1: Before perform the servo and RF system adjustments, check that
the specified value of “36 MHz Origin Oscillation Check” of
“CAMERA SYSTEM ADJUSTMENT” is satisfied.
And check that the data of page: 0, address: 10 is “00”. If not, set
data: 00 to this address.
“CAMERA SYSTEM ADJUSTMENT” is satisfied.
And check that the data of page: 0, address: 10 is “00”. If not, set
data: 00 to this address.
Note2: NTSC model : DCR-PC55
PAL model
: DCR-PC53E/PC55E
1. S VIDEO OUT Y Level Adjustment (VC-379 board)
Mode
CAMERA–TAPE
Subject
Arbitrary
Measurement Point
Y signal terminal of S VIDEO plug of
A/V jack (75
A/V jack (75
Ω
terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
25
Specified Value
A = 1000
±
14mV
Note: The data of page: 0, address: 10 must be “00”.
Switch setting:
DEMO MODE (Menu setting) ................................................ OFF
DEMO MODE (Menu setting) ................................................ OFF
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
8
4C
94
Set the data, and press PAUSE
button.
button.
3
3
0C
02
Set the data, and press PAUSE
button.
button.
4
C
25
Change the data and set the Y
signal level (A) to the specified
value.
signal level (A) to the specified
value.
5
C
25
Press PAUSE button.
6
3
0C
00
Set the data, and press PAUSE
button.
button.
7
8
4C
96
Set the data, and press PAUSE
button.
button.
8
0
01
00
Set the data.
2. S VIDEO OUT Chroma Level Adjustment (VC-379 board)
Mode
CAMERA-TAPE
Subject
Arbitrary
Measurement Point
Chroma signal terminal of S VIDEO
plug of A/V jack (75
plug of A/V jack (75
Ω
terminated)
External trigger: Y signal terminal of
S VIDEO plug of A/V jack
S VIDEO plug of A/V jack
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
26, 27
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)
Note: The data of page: 0, address: 10 must be “00”.
Switch setting:
DEMO MODE (Menu setting) ................................................ OFF
DEMO MODE (Menu setting) ................................................ OFF
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
8
4C
94
Set the data, and press PAUSE
button.
button.
3
3
0C
02
Set the data, and press PAUSE
button.
button.
4
C
26
Change the data and set the Cr signal
level (A) to the specified value.
level (A) to the specified value.
5
C
26
Press PAUSE button.
6
C
27
Change the data and set the Cb signal
level (B) to the specified value.
level (B) to the specified value.
7
C
27
Press PAUSE button.
8
Check that the burst signal level
(C) is satisfied the specified value.
(C) is satisfied the specified value.
9
3
0C
00
Set the data, and press PAUSE
button.
button.
10
8
4C
96
Set the data, and press PAUSE
button.
button.
11
0
01
00
Set the data.
Fig. 6-3-4.
Fig. 6-3-5.
H
A
H
C
A
0.28
µ
sec (NTSC)
0.23
µ
sec (PAL)
B
0.28
µ
sec (NTSC)
0.23
µ
sec (PAL)
6-46
DCR-PC53E/PC55/PC55E
3. VIDEO OUT Y, Chroma Level Check (VC-379 board)
Mode
CAMERA-TAPE
Subject
Arbitrary
Measurement Point
Video plug of A/V jack
(75
(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)
Note: The data of page: 0, address: 10 must be “00”.
Switch setting:
DEMO MODE (Menu setting) ................................................ OFF
DEMO MODE (Menu setting) ................................................ OFF
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
8
4C
94
Set the data, and press PAUSE
button.
button.
3
3
0C
02
Set the data, and press PAUSE
button.
button.
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
0C
00
Set the data, and press PAUSE
button.
button.
7
8
4C
96
Set the data, and press PAUSE
button.
button.
8
0
01
00
Set the data.
Fig. 6-3-6.
H
B
A
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