Sony DCR-PC8E (serv.man2) Service Manual ▷ View online
5-41
DCR-PC8E
4. Battery End Check (VC-265D board)
Check the battery end voltage.
Mode
Camera recording and VTR playback
Subject
Arbitrary
Note:
It is normal though the following symptoms appear during the battery
end check.
1)
end check.
1)
The message of “FOR InfoLITHIUM BATTERY ONLY” on
the LCD or viewfinder screen.
the LCD or viewfinder screen.
2)
The tally lamp is flashing.
Connection:
1)
1)
Connect the regulated power supply and the digital voltmeter
to the battery terminal as shown in Fig. 5-3-5.
to the battery terminal as shown in Fig. 5-3-5.
Checking method:
1)
1)
Adjust the output voltage of the regulated power supply so that
the digital voltmeter display is 6.0 ± 0.1Vdc.
the digital voltmeter display is 6.0 ± 0.1Vdc.
2)
Turn off the power supply.
3)
Turn on the HOLD switch of the adjustment remote
commander.
commander.
4)
Turn on the power supply.
5)
Load a cassette, and set to the camera recording mode.
6)
Decrease the output voltage of the regulated power supply so
that the digital voltmeter display is 5.5 ± 0.1Vdc.
that the digital voltmeter display is 5.5 ± 0.1Vdc.
7)
Record the camera signal for a minute.
8)
Playback the recorded section and check that the playback
picture and sound are normal.
picture and sound are normal.
Fig. 5-3-5.
3. Touch Panel Adjustment (VC-265D board)
Adjust the calibration of the touch panel.
Mode
VTR stop
Signal
Arbitrary
Adjustment Page
D
Adjustment Address
E0 to E3
Note 1:
Protect the Touch panel (LCD screen) with a transparent sheet.
Note 2:
Turn off the HOLD switch of the adjustment remote commander.
Adjusting method:
1)
1)
While pressing the DISPLAY button, set the POWER switch
from OFF to VCR.
from OFF to VCR.
2)
Using a ball-point pen etc., push the center of “
×
” indicated in
the part A.
3)
Using a ball-point pen etc., push the center of “
×
” indicated in
the part B.
4)
Using a ball-point pen etc., push the center of “
×
” indicated in
the part C.
A
C
B
Fig. 5-3-4.
+
+
Regulated power supply
Digital volt meter
5.5
±
0.01 Vdc
5-42
DCR-PC8E
3-3.
SERVO AND RF SYSTEM ADJUSTMENT
Before perform the servo and RF system adjustments, check that
the specified value of “36MHz Origin Oscillation Adjustment” of
“CAMERA SYSTEM ADJUSTMENT” is satisfied.
the specified value of “36MHz Origin Oscillation Adjustment” of
“CAMERA SYSTEM ADJUSTMENT” is satisfied.
Adjusting Procedure:
1.
1.
Cap FG duty adjustment
2.
PLL f
0
& LPF f
0
adjustment
3.
Switching position adjustment`
4.
AGC center level
5.
APC & AEQ adjustment
6.
PLL f
0
& LPF f
0
fine adjustment
1. Cap FG Duty Adjustment (VC-265D 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.
capstan servo. If deviated, the uneven rotation of capstan and noise
can occur.
Measurement Point
Display data of page: 3, address: 03
Measuring Instrument
Adjustment remote commander
Adjustment Page
C
Adjustment Address
16
Specified Value
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”.
(Note)
(Note)
6
0
01
00
Set the data.
Note:
If the data is “01”, adjustment has errors or the mechanism deck is
defective.
defective.
2. PLL f
0
& LPF f
0
Adjustment (VC-265D board)
Mode
VTR stop
Measurement Point
Display data of page: 3, address: 02,
03
03
Measuring Instrument
Adjustment remote commander
Adjustment Page
C
Adjustment Address
1F, 20, 22, 29
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”.
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
Set the data.
2
C
21
DC
Set the data, and press PAUSE
button.
button.
3
3
01
30
Set the data, and press PAUSE
button.
button.
4
3
02
Check that the data changes to
“00” with in 5 sec. (Note)
“00” with in 5 sec. (Note)
5
3
03
Check that the data is “00”.
(Note)
(Note)
6
0
01
00
Set the data.
Note:
If it isn’t satisfied, select page: C, address: 21, set the following
data, and press the PAUSE button, and repeat steps 3 to 5.
data, and press the PAUSE button, and repeat steps 3 to 5.
Setting data
When the data of page: C, address: 21 is “DC”.
E0
When the data of page: C, address: 21 is “E0”.
D8
When the data of page: C, address: 21 is “D8”.
E4
When the data of page: C, address: 21 is “E4”
D4
There are errors when it isn’t satisfied even if the above treatment is
done.
If bit2, bit3, bit4, bit5 or bit 6 of the data of page: 3, address: 03 is
“1”, there are errors. For the error contents, see the following table.
(For the bit values, refer to “5-4. SERVICE MODE”, “4-3. 3. Bit
value discrimination”.)
done.
If bit2, bit3, bit4, bit5 or bit 6 of the data of page: 3, address: 03 is
“1”, there are errors. For the error contents, see the following table.
(For the bit values, refer to “5-4. SERVICE MODE”, “4-3. 3. Bit
value discrimination”.)
Bit value of page: 3,
Error contents
address: 03 data
bit 2 = 1 or bit 3 = 1
PLL f
0
fine adjustment is defective
bit 4 = 1 or bit 5 = 1
PLL f
0
adjustment is defective
bit 6 = 1
LPF f
0
is defective
5-43
DCR-PC8E
4. AGC Center Level and APC & AEQ Adjustment
4-1. Preparations before adjustments
Mode
Camera recording
Subject
Arbitrary
Adjusting method:
Order Page Address Data
Procedure
1
2
30
40
Set the data.
2
Record the camera signal for
three minutes.
three minutes.
3. Switching Position Adjustment (VC-265D board)
Mode
VTR playback
Signal
SW/OL reference tape (XH2-3)
Measurement Point
Display data of page: 3, address: 03
Measuring Instrument
Adjustment remote commander
Adjustment Page
C
Adjustment Address
10, 11, 12, 13
Specified Value
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”.
(Note1)
(Note1)
5
3
01
0D
Set the data, and press PAUSE
button.
button.
6
3
02
Check that the data changes to “00”.
7
3
03
Check that the data is “00”.
(Note2)
(Note2)
8
C
10
Check that the data is other than
“EE”. (Note3)
“EE”. (Note3)
9
0
01
00
Set the data.
Note1:
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 4
and higher.
After playing the tape for 1 to 2 seconds, stop it, perform step 4
and higher.
Note2:
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 “5-4. SERVICE MODE”, “4-3. 3. 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.
“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 “5-4. SERVICE MODE”, “4-3. 3. 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.
Note3:
If the data is “EE”, the adjustmnet is not done. So perform this
adjustment again.
adjustment again.
When the EVEN channel is defective
Data of page: C,
Contents of defect
address: 10
EE
Writing into EEPROM (IC4701) is
defective
defective
E8
Adjustment data is out of range
E7
No data is returned from IC5302
When the ODD channel is defective
Data of page: C,
Contents of defect
address: 12
EE
Writing into EEPROM (IC4701) is
defective
defective
E8
Adjustment data is out of range
E7
No data is returned from IC5302
5-44
DCR-PC8E
6.7 msec
PB RF signal is stable
Pin
qj
Pin
w;
Fig. 5-3-6.
4-2. AGC Center Level Adjustment (VC-265D board)
Mode
Playback
Signal
Recorded signal at “Preparations
before adjustments”
before adjustments”
Measurement Point
Pin w; of CN004 (RF MON) (Note 1)
Ext. trigger: Pin qj of CN004 (SWP)
Ext. trigger: Pin qj of CN004 (SWP)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
1E
Specified Value
The data of page: 3, address: 03 is
“00”
“00”
Note 1:
Connect a 75
Ω
resistor between Pin w; and Pin ql (GND) of
CN004.
75
75
Ω
resistor (Parts code: 1-247-804-11)
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
3
33
08
Set the data.
4
Confirm that the playback RF
signal is stable. (Fig. 5-3-4.)
signal is stable. (Fig. 5-3-4.)
5
3
01
23
Set the data, and press PAUSE
button.
button.
6
3
02
Check that the data is “00”.
7
3
03
Check that the data is “00”.
(Note2)
(Note2)
8
Perform “APC & AEQ
Adjustment”.
Adjustment”.
Note2:
If the data of page: 3, address: 03 is other than “00”, adjustment
has errors. (Take an appropriate remedial measures according to
the errors referring to the following table.)
has errors. (Take an appropriate remedial measures according to
the errors referring to the following table.)
Data
Contents of defect
20
Perform re-adjustment. (Note 3)
30
The machine is defective
40
Perform re-adjustment. (Note 3)
50
The machine is defective
Note 3:
If this data is displayed twice successively, the machine is defective.
4-3. APC & AEQ Adjustment (VC-265D board)
Mode
Playback
Signal
Recorded signal at “Preparations
before adjustments”
before adjustments”
Measurement Point
Pin w; of CN004 (RF MON) (Note 1)
Ext. trigger: Pin qj of CN004 (SWP)
Ext. trigger: Pin qj of CN004 (SWP)
Measuring Instrument
Oscilloscope
Adjustment Page
C
Adjustment Address
18, 19, 1B, 1C, 21, 2C
Specified Value
The data of page: 3, address: 03 is
“00”
“00”
Note 1:
Connect a 75
Ω
resistor between Pin w; and Pin ql (GND) of
CN004.
75
75
Ω
resistor (Parts code: 1-247-804-11)
Note 2:
The “AGC Center Level Adjustment” must have already been
completed before starting this adjustment.
completed before starting this adjustment.
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
3
33
08
Set the data.
4
Confirm that the playback RF
signal is stable. (Fig. 5-3-5.)
signal is stable. (Fig. 5-3-5.)
5
3
01
07
Set the data, and press PAUSE
button.
button.
6
3
02
Check that the data changes
from “07” to “00” in about 20
seconds after pressing PAUSE
button.
from “07” to “00” in about 20
seconds after pressing PAUSE
button.
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”, adjustment has errors. Take an
appropriate remedial measures according to the errors referring to
the following table.
appropriate remedial measures according to the errors referring to
the following table.
Data
Contents of defect
20
Perform re-adjustment. (Note 4)
30
The machine is defective
50
Perform re-adjustment. (Note 4)
60
The machine is defective
80
The machine is defective
Note 4:
If this data is displayed twice successively, the machine is defective.
Fig. 5-3-7.
6.7 msec
PB RF signal is stable
Pin
qj
Pin
w;
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