DOWNLOAD Sony DCR-HC21 (serv.man2) Service Manual ↓ Size: 1.11 MB | Pages: 89 in PDF or view online for FREE

Model
DCR-HC21 (serv.man2)
Pages
89
Size
1.11 MB
Type
PDF
Document
Service Manual
Brand
Device
Movie / SECTION 6 ADJUSTMENTS BRAZIL
File
dcr-hc21-sm2.pdf
Date

Sony DCR-HC21 (serv.man2) Service Manual ▷ View online

6-50
DCR-HC21
3.
Transmissive Mode White Balance Adjustment
(PD-237 board)
Correct the white balance at transmissive mode.
If deviated, the LCD screen color cannot be reproduced.
Mode
VTR stop (PLAY/EDIT mode)
Signal
No signal
Measurement Point
Check on LCD screen
Measuring Instrument
Adjustment Page
C
Adjustment Address
56, 57
Specified Value
LCD screen must not be colored
Note 1:
Check that the data of page: 0, address: 10 is “00”.
Note 2:
Check the white balance only when replacing the fol-
lowing parts. If necessary, adjust them.
1. LCD block
2. Light induction plate
3. IC602
Note 3:
Non MS model: DCR-HC17E/HC19E/HC21/HC21E/
HC22E
MS model: DCR-HC32/HC32E/HC33/HC33E
Switch setting:
LCD BACKLIGHT ................................................................. ON
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
C
56
Set the following data, and
Press PAUSE button.
7D: Non MS model
88: MS model
3
C
57
Set the following data, and
Press PAUSE button.
73: Non MS model
71: MS model
4
Check that the LCD screen is
not colored. If not colored,
proceed to step 6.
5
C
Change the data so that the
LCD screen is not colored.
(Note 4)
6
0
01
00
Note 4:
To write in the non-volatile memory (EEPROM), press
the PAUSE button each time to set the data.
A
A
A
A
B
B
B
B
Fig. 6-1-18
2.
V-COM Adjustment (PD-237 board)
Set the DC bias of the common electrode drive signal of LCD to
the specified value.
If deviated, the LCD display will be move, producing flicker and
conspicuous vertical lines.
Mode
VTR stop (PLAY/EDIT mode)
Signal
No signal
Measurement Point
Check on LCD screen
Measuring Instrument
Adjustment Page
C
Adjustment Address
52
Specified Value
The brightness difference between
the section-A and section-B is
minimum
Note 1:
Perform “LCD Automatic Adjustment” before this ad-
justment.
Note 2:
Check that the data of page: 0, address: 10 is “00”.
Switch setting:
LCD BACKLIGHT ................................................................. ON
Adjusting method:
Order Page Address Data
Procedure
1
0
01
01
2
C
61
CD
Press PAUSE button.
3
C
52
Change the data so that
brightness of the section A
and section B is equal.
4
C
52
Subtract 5 from the data.
5
C
52
Press PAUSE button.
6
C
61
C5
Press PAUSE button.
7
0
01
00
56
57
6-51
DCR-HC21
6-2. MECHANISM SECTION ADJUSTMENTS
On the mechanism section adjustment
For details of mechanism section adjustments, checks, and replace-
ment of mechanism parts, refer to the separate volume “DV ME-
CHANICAL ADJUSTMENT MANUAL VIII  Z (Z200) Mechanism  ”.
Note 1:
Before performing the adjustments, check the data of
page: 0, address: 10 is “00”. If not, set data: 00 to this
address.
Note 2:
Non MS model: DCR-HC17E/HC19E/HC21/HC21E/
HC22E
MS model: DCR-HC32/HC32E/HC33/HC33E
2-1.
HOW TO ENTER RECORD MODE WITHOUT
CASSETTE
1) Connect the adjustment remote commander to the LANC jack.
2) Turn the HOLD switch of the adjustment remote commander
to the ON position.
3) Close the cassette compartment without the cassette.
4) Select page: 3, address: 01, set data: 0C, and press the PAUSE
button of the adjustment remote commander.
(The mechanism enters the record mode automatically.)
Note:
 The function buttons become inoperable.
5) To quit the record mode, select page: 3, address: 01, set data:
00, and press the PAUSE button of the adjustment remote com-
mander.  (Whenever you want to quit the record mode, be sure
to quit following this procedure.)
2-2.
HOW TO  ENTER  PLAYBACK MODE WITHOUT
CASSETTE
1) Connect the adjustment remote commander to the LANC jack.
2) Turn the HOLD switch of the adjustment remote commander
to the ON position.
3) Close the cassette compartment without the cassette.
4) Select page: 3, address: 01, set data: 0B, and press the PAUSE
button of the adjustment remote commander.
(The mechanism enters the playback mode automatically.)
Note:
 The function buttons become inoperable.
5) To quit the playback mode, select page: 3, address: 01, set
data: 00, and press the PAUSE button of the adjustment re-
mote commander.  (Whenever you want to quit the playback
mode, be sure to quit following this procedure.)
2-3.
TAPE PATH ADJUSTMENT
1.
Preparation for Adjustment
1) Clean the tape running side (tape guide, drum, capstan shaft,
pinch roller, etc.).
2) Connect the adjustment remote commander to the LANC jack.
3) Turn the HOLD switch of the adjustment remote commander
to the ON position.
4) Connect an oscilloscope to CN1007 of VC-376 board (Non
MS model) or VC-377 board (MS model) via CPC-15 (J-6082-
564-A) and I/F unit for LANC control (J-6082-521-A).
Channel 1: VC-376 board (Non MS model) or VC-377
board (MS model), CN1007 Pin 1 (Note)
External trigger: VC-376 board (Non MS model) or
VC-377 board (MS model), CN1007 Pin 2
Note:
Connect a 75 
 resistor between pins 1 of CN1007
and 3 (GND).
75 
 resistor (Parts code: 1-247-804-11)
5) Playback the alignment tape for tracking. (XH2-1)
6) Select page: 3, address: 33, and set data: 08.
7) Select page: 3, address: 26, set data: 31, and press the PAUSE
button.
8) Check that the oscilloscope RF waveform is normal at the en-
trance and exit.
If not normal, adjust according to the separate volume
“DV MECHANICAL ADJUSTMENT MANUAL VIII
Z (Z200) Mechanism ” .
CN1007 of VC-376 board (Non MS model) or VC-377
board (MS model)
2.
Procedure after operations
1) Connect the adjustment remote commander to the LANC jack
and set the HOLD switch to the ON position.
2) Select page: 3, address: 26, set data: 00, and press the PAUSE
button.
3) Select page: 3, address: 33, and set data: 00.
Fig. 6-2-1
CH1
Entrance side
Exit side
Check this section
(Normal waveform)
CH2
(Trigger)
3.3msec
Pin No. Signal Name
1
RF_MON
2
SWP
3
GND
4
XCS EEP
5
EEP SCK
6
EEP SO
7
EEP SI
8
GND
6-52
DCR-HC21
6-3. VIDEO SECTION ADJUSTMENTS
3-1.
PREPARATIONS BEFORE ADJUSTMENTS
Use the following measuring instruments for video section adjust-
ments.
3-1-1.
Equipment Required
1)
TV monitor
2)
Oscilloscope (dual-phenomenon, band above 30 MHz with
delay mode) (Unless specified otherwise, use a 10 : 1 probe.)
3)
Pattern generator with video output terminal.
4)
Audio generator
5)
Audio level meter
6)
Audio distortion meter
7)
Audio attenuator
8)
AC power adapter
9)
Alignment tapes
• Tracking standard (XH2-1)
Parts code: 8-967-997-01
• SW/OL standard (XH2-3)
Parts code: 8-967-997-11
• Audio operation check for NTSC (XH5-3)
Parts code: 8-967-997-51
• System operation check for NTSC (XH5-5)
Parts code: 8-967-997-61
• Audio operation check for PAL (XH5-3P)
Parts code: 8-967-997-55
• System operation check for PAL (XH5-5P)
Parts code: 8-967-997-66
10) Adjustment remote commander (J-6082-053-B)
11) CPC connecting jigs
• CPC-15 (J-6082-564-A)
• I/F unit for LANC control (J-6082-521-A)
3-1-2.
Precautions on Adjusting
Note:
Before performing the adjustment, check the data of page:
0, address: 10 is “00”. If not, select page: 0, address: 00,
and set data “00”.
1) The adjustments of this unit are performed in the VTR mode
(PLAY/EDIT mode) or camera mode (CAMER mode or CAM-
ERA-TAPE mode).
3-1-3.
Adjusting Connectors
The measuring point of the playback RF signal is CN1007 of VC-
376 board or VC-377 board. Connect the measuring instruments
via the CPC-15 jig (J-6082-564-A) and I/F unit for LANC control
(J-6082-521-A). Refer to “MECHANISM SECTION ADJUST-
MENT” for the measuring method. The following table lists the
pin numbers and signal names of CN1007.
Pin No. Signal Name
1
RF_MON
2
SWP
3
GND
4
XCS EEP
5
EEP SCK
6
EEP SO
7
EEP SI
8
GND
Table 6-3-1
6-53
DCR-HC21
3-1-4.
Connecting the Equipment
Connect the measuring instruments as shown in Fig. 6-3-1, and
perform the adjustments.
Fig. 6-3-1
Adjustment remote 
commander (RM-95)
A/V jack
CPC lid
Screw (M1.7)
LANC jack
AC adaptor
AC IN
 To DC IN jack
Audio L
 (White)
Audio R
 (Red)
Video
 (yellow)
S Video
 (Black)
Color monitor
For tape path adjustment
8
1
 RF MON
 SWP
 GND
 XSC EEP
 EEP SCK
 EEP SO
 EEP SI
CPC-15
(J-6082-564-A)
CN002
CN001
BATT
LANC
Not used
Not used
Not used.
Not used
*1
*1
I/F unit for LANC control
(J-6082-521-A)
*1: Don't connect any cable
      to these connectors.
Note: Non MS model: DCR-HC17E/HC19E/HC21/HC21E/HC22E
MS model: DCR-HC32/HC32E/HC33/HC33E
A/V OUT jack
Except DCR-HC22E
LANC jack
(MS model)
(Non MS model)
1
6
4
7
5
3
2
1
3
2
3
4
5
6
7
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