Sony GV-HD700 (serv.man4) Service Manual ▷ View online
6-16
GV-HD700/HD700E_ADJ
1.
CAP FG Duty Adjustment (RP-244 board)
RadarW
RadarW
RadarW
RadarW
RadarW
Set the CAP FG signal duty cycle to 50% to establish an appropri-
ate capstan servo. If deviated, the uneven rotation of capstan and
noise can occur.
ate capstan servo. If deviated, the uneven rotation of capstan and
noise can occur.
Mode
VTR stop
Signal
No signal
Measurement Point
Displayed data of page: 3, address:
03
03
Measuring Instrument
Adjusting remote commander
Adjustment Page
C
Adjustment Address
16
Specified value
The data of page: 3, address: 03 is
“00”
“00”
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Adjusting method:
Order Page Address Data
Procedure
1
Close the cassette compart-
ment without inserting
cassette.
ment without inserting
cassette.
2
0
01
01
3
3
03
FF
4
3
01
1B
Press PAUSE (Write) button.
5
3
02
Check the data changes in
the following order
“1B”
the following order
“1B”
t “2B” t “00”
6
3
03
Check the data is “00”. (Note 2)
7
0
01
00
Note 2:
If the data is “01”, adjustment has errors or the mecha-
nism deck is defective.
If the data is “80”, the mechanism deck is in emergency
state or the end of tape was detected.
nism deck is defective.
If the data is “80”, the mechanism deck is in emergency
state or the end of tape was detected.
3-3.
SERVO AND RF SYSTEM ADJUSTMENTS
Before perform the servo and RF system adjustments, check that
the specified values of “Origin Oscillation check” is satisfied.
Check that the data of page: 0, address: 10 is “00”. If not, select
page: 0, address: 10, and set the data “00”.
the specified values of “Origin Oscillation check” is satisfied.
Check that the data of page: 0, address: 10 is “00”. If not, select
page: 0, address: 10, and set the data “00”.
Adjusting Procedure:
1. CAP FG duty adjustment
2. Switching position adjustment
3. Error rate check
1. CAP FG duty adjustment
2. Switching position adjustment
3. Error rate check
6-17
GV-HD700/HD700E_ADJ
Note 3:
If bit0 of the data is “1”, the EVEN channel is defective.
If bit1 of the data is “1”, the ODD channel is defective.
Contents of the defect is see written into page: C, ad-
dress: 10 and 12. See following table.
(For the bit values, refer to “6-4. SERVICE MODE”,
“4-4. 3. Bit value discrimination”.)
If bit3 of the data is “1”, the tape end being played, so
rewind the tape and perform the adjustment again.
If bit1 of the data is “1”, the ODD channel is defective.
Contents of the defect is see written into page: C, ad-
dress: 10 and 12. See following table.
(For the bit values, refer to “6-4. SERVICE MODE”,
“4-4. 3. Bit value discrimination”.)
If bit3 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
Data of page: C,
Contents of defect
address: 10
EE
Writing into Flash memory (IC2601) is
defective
defective
E8
Adjustment data is out of range
E7
No data is returned from IC3001
When the ODD channel is defective
Data of page: C,
Contents of defect
address: 12
EE
Writing into Flash memory (IC2601) is
defective
defective
E8
Adjustment data is out of range
E7
No data is returned from IC3001
2.
Switching Position Adjustment (RP-244 board)
RadarW
RadarW
RadarW
Mode
VTR playback (VCR mode)
Signal
SW/OL standard (XH2-3)
Measurement Point
Displayed data of page: 3, address:
03
03
Measuring Instrument
Adjusting remote commander
Adjustment Page
C
Adjustment Address
10, 11, 12, 13
Specified value
The data of page: 3, address: 03 is
“00”
“00”
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Adjusting method:
Order Page Address Data
Procedure
1
Insert the SW/OL standard
tape and enter the VTR stop
mode.
tape and enter the VTR stop
mode.
2
0
01
01
3
C
10
EE
Press PAUSE (Write) button.
4
3
03
FF
5
3
21
Check the data is “02”. (Note 2)
6
3
01
0D
Press PAUSE (Write) button.
7
3
02
Check the data changes to “00”.
8
3
03
Check the data is “00”. (Note 3)
9
0
01
00
Note 2:
If the data is “72”, the tape top being played. After play-
ing the tape for 1 to 2 seconds, stop it, perform step 5 and
higher.
If the data is “62”, the tape end being played. After re-
wind the tape, perform step 5 and higher.
ing the tape for 1 to 2 seconds, stop it, perform step 5 and
higher.
If the data is “62”, the tape end being played. After re-
wind the tape, perform step 5 and higher.
6-18
GV-HD700/HD700E_ADJ
3.
Error Rate Check (RP-244 board)
RadarW
RadarW
RadarW
RadarW
RadarW
Note: Check that the data of page: 0, address: 10 is “00”.
3-1. Preparations before adjustments
Mode
Recording
Subject
Arbitrary
Switch setting
1) REC FORMAT (Menu setting) ........................................ DV
1) REC FORMAT (Menu setting) ........................................ DV
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
0
10
01
3
C
0D
C8
Press PAUSE (Write) button.
(1C)
4
0
10
00
5
Record for 2 minutes.
3-2. Error Rate Check
Mode
VTR playback
Subject
Recorded signal at “Preparations
before adjustments”
before adjustments”
Measurement Point
Displayed data of page: 3, address:
03
03
Measuring Instrument
Adjusting remote commander
Adjustment Page
1C
Adjustment Address
B3 to C8
Specified value
The data of page: 3, address: 03 is
“00”
“00”
Note 1: If reading/writing data on pages 1C, set data: 01 to page:
0, address: 10, and then select pages: C. By this data set-
ting, the pages 1C can be selected.
After the data reading/writing finished, return the data
on page: 0, address: 10 to “00”.
ting, the pages 1C can be selected.
After the data reading/writing finished, return the data
on page: 0, address: 10 to “00”.
Initial Value of Page 1C: Address: B3 to C8
Address
Initial
Address
Initial
Address
Initial
value
value
value
B3
00
BB
00
C3
80
B4
00
BC
00
C4
00
B5
00
BD
00
C5
00
B6
00
BE
00
C6
00
B7
00
BF
00
C7
00
B8
80
C0
00
C8
00
B9
00
C1
00
BA
00
C2
00
Table 6-3-5
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
Check that the data of page:
1C, address: B3 to C8 is the
initial value. (See Table 6-3-
4)
1C, address: B3 to C8 is the
initial value. (See Table 6-3-
4)
3
Playback the recorded signal
at “Preparations before
adjustments”.
at “Preparations before
adjustments”.
4
3
03
FF
5
3
01
40
Press PAUSE (Write) button.
6
3
02
Check the data changes to
“00”.
“00”.
7
3
03
Check the data is “00”. (Note 2)
8
Perform “Processing after
Completing Adjustments”.
Completing Adjustments”.
Note 2: If the data is other than “00”, Error rate is abnormal.
For the contents of the abnormality, see the following
table.
table.
Data of page: 3,
Contents of defect
address: 03
01
EVEN channel is abnormal.
02
ODD channel is abnormal.
03
EVEN channel and ODD channel are
abnormal.
abnormal.
Note 3: 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)
page 1C: address: B3 to C8, perform re-adjustment. (See
Table 6-3-4)
Processing after Completing Adjustment:
Order Page Address Data
Procedure
1
0
01
01
2
0
10
01
3
C
0D
00
Press PAUSE (Write) button.
(1C)
4
0
10
00
5
0
01
00
6-19
GV-HD700/HD700E_ADJ
1-2. S VIDEO OUT Y Level Adjustment (VD-038 board)
Mode
VCR
Signal
No signal
Measurement Point
Y signal terminal of S VIDEO plug
of A/V jack (75
of A/V jack (75
Ω terminated)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
90 (NTSC)
8A (PAL)
8A (PAL)
Specified value
A = 1000
± 14 mVp-p
Adjusting method:
Order Page Address Data
Procedure
1
Perform “Preparations”.
2
C
Change the data and set the Y
signal level (A) to the
specified value.
signal level (A) to the
specified value.
3
C
Press PAUSE (Write) button.
4
Perform “Processing after
Complete Adjustment”.
Complete Adjustment”.
3-4.
VIDEO SYSTEM ADJUSTMENTS
Before perform the video system adjustments, check that the speci-
fied values of “Origin Oscillation Check” is satisfied.
Check that the data of page: 0, address: 10 is “00”.
If not, select page: 0, address: 10, and set the data “00”.
fied values of “Origin Oscillation Check” is satisfied.
Check that the data of page: 0, address: 10 is “00”.
If not, select page: 0, address: 10, and set the data “00”.
Adjusting Procedure:
1. S VIDEO OUT Y level adjustment
2. S VIDEO OUT chroma level adjustment
3. VIDEO OUT level check
4. COMPONENT OUT Y level adjustment
5. COMPONENT OUT Pr level adjustment
6. COMPONENT OUT Pb level adjustment
1. S VIDEO OUT Y level adjustment
2. S VIDEO OUT chroma level adjustment
3. VIDEO OUT level check
4. COMPONENT OUT Y level adjustment
5. COMPONENT OUT Pr level adjustment
6. COMPONENT OUT Pb level adjustment
1.
S VIDEO, VIDEO OUT Adjustment
1-1. Preparations
Perform the following data setting before the “S VIDEO,
VIDEO OUT Adjustment”.
VIDEO OUT Adjustment”.
Order Page Address Data
Procedure
1
Set the unit to VCR mode.
2
0
01
01
3
0
10
01
4
8
00
01
Press PAUSE (Write) button.
(18)
5
8
01
60
Press PAUSE (Write) button.
(18)
6
C
0F
10
Press PAUSE (Write) button.
(1C)
7
8
06
55
Press PAUSE (Write) button.
(18)
8
8
04
C0
Press PAUSE (Write) button.
(18)
9
0
10
00
10
Wait for 5 sec.
11
0
FF
3E
12
B
00
02
13
C
85
Check the data is “55”.
14
B
00
00
15
0
FF
00
Fig. 6-3-3
H
A
(NTSC)
90
(PAL)
8A
(NTSC)
90
(PAL)
8A
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