Sony SLV-D990PB / SLV-D990PE / SLV-D990PR / SLV-D995PE Service Manual ▷ View online
6-3
6-1-2 Head Switching Point Adjustment
1) Playback the alignment tape.
2) Press the “TEST” botton on VCR MAIN PCB to set the adjustment mode. (See Fig. 6-2)
3) Press the “1, 0” buttons ; remote control adjustment operates automatically. (See Fig. 6-1)
2) Press the “TEST” botton on VCR MAIN PCB to set the adjustment mode. (See Fig. 6-2)
3) Press the “1, 0” buttons ; remote control adjustment operates automatically. (See Fig. 6-1)
6-1-3 NVRAM Option Setting
1) NVRAM Option is adjusted in the factory.
2) In case Main PCB Micom (IC601) and NVRAM (IC605 ; EEPROM) are replaced, be sure to set the corresponding option number of the
required model. (If the option is not set, the unit will operate.)
1) Press the “TEST” botton on VCR MAIN PCB to set the adjustment mode.
2) Press the “1, 4” buttons on the remote control. The option setting is appears. (See Fig. 6-3)
3) Select the option number (See table 6-1) of corresponding model with “
2) Press the “1, 4” buttons on the remote control. The option setting is appears. (See Fig. 6-3)
3) Select the option number (See table 6-1) of corresponding model with “
,
,
,
” buttons on the remote control.
4) After selecting the option number is completed, press the “ENTER” button of remote control.
(If “ENTER” button is pressed, the selected number is changescolor. ; See Fig. 6-4)
5) Press the “RETURN” button of remote control again to store the option number.
6) Turn the Power off.
6) Turn the Power off.
Fig. 6-3
Fig. 6-4
CHG : OK SAVE : RETURN
01
02 03
04
05
06
07
08
09 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24
25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56
57 58 59 60 61 62 63 64
65 66 67 68 69 70 71 72
CHG : OK SAVE : RETURN
01
02 03
04
05
06
07
08
09 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24
25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40
41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56
57 58 59 60 61 62 63 64
65 66 67 68 69 70 71 72
6-4
< Table 6-1 NVRAM Option Table >
MODEL
OPTION NUMBERS
SLV-D990P E1
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 32, 34, 35, 38, 40, 42, 45, 47, 48, 50, 60, 61, 63, 67, 68, 69, 70, 71, 72
SLV-D990P E2
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 32, 34, 35, 38, 40, 42, 45, 47, 48, 50, 60, 61, 63, 67, 68, 69, 70, 71, 72
SLV-D990P B
4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 20, 21, 26, 32, 33, 34, 35, 36, 38, 40, 45, 47, 48, 50, 60, 61, 63, 67, 68, 69, 70, 71,72
SLV-D990P R
6, 7, 8, 9, 10, 11, 12, 13, 15, 20, 32, 36, 37, 39, 42, 43, 45, 47, 48, 50, 54, 60, 61, 63, 67, 68, 69, 70, 71
SLV-D995P E1
2, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15,16, 32, 34, 35, 38, 40, 42, 45, 47,48, 49, 60, 61, 63, 64, 67, 68, 69, 70, 71, 72
6-5
6-2 VCR MECHANICAL ADJUSTMENT
6-2-1 Tape Transport System and Adjustment Locations
The tape transport system has been adjusted precisely in the factory. Alignment is not necessary except for the
following :
1) Noise observed on the screen.
2) Tape damage.
3) Parts replacement in the tape transport system.
following :
1) Noise observed on the screen.
2) Tape damage.
3) Parts replacement in the tape transport system.
Lower flange height of tape guide is used as the reference for the transport adjustment.
To maintain the height of the tape guide and prevent damage, do not apply excessive force onto the main base.
To maintain the height of the tape guide and prevent damage, do not apply excessive force onto the main base.
Fig. 6-6 Tape Travel Diagram
CYLINDER ASS'Y
TAKE UP REEL DISK
#8 GUIDE POST
#9 GUIDE POST
SUPPLY REEL DISK
CAPSTAN
PINCH ROLLER
GUIDE ROLLER "T"
GUIDE ROLLER "S"
FULL ERASE HEAD
#3 GUIDE POST
TENSION POST
HEIGHT SCREW
TILT SCREW
X - POSITION
ADJUST SILT
AZIMUTH SCREW
POST TENSION
MAIN BASE
FE HEAD
CYLINDER ASS'Y
PINCH ROLLER
GUIDE ROLLER "S"
GUIDE ROLLER "T"
#8 GUIDE POST #9 GUIDE POST
CAPSTAN SHAFT
ACE HEAD
#3 GUIDE POST
Fig. 6-5 Location of Tape Transport Adjustment
6-6
6-2-2 Tape Transport System Adjustment
When parts are replaced, perform the required adjustments by referring to procedures for the tape transport
system. If there are any changes to the tape path, first run a T-120 tape and make sure excessive tape wrinkle does not occur at the tape guides.
system. If there are any changes to the tape path, first run a T-120 tape and make sure excessive tape wrinkle does not occur at the tape guides.
◆ If tape wrinkle is observed at the guide roller S, T, turn the guide roller S, T until wrinkle disappears.
◆ If the tape wrinkle is still observed at the tape guide, perform the tilt adjustment of the ACE head.
◆ If the tape wrinkle is still observed at the tape guide, perform the tilt adjustment of the ACE head.
(1) ACE Head Assembly Adjustment
a. ACE HEAD HEIGHT ADJUSTMENT
1) Run the alignment tape (Color bar) in the playback mode.
2) Observe surface of the audio head using a dental mirror.
3) Turn screw (C) clockwise or counterclockwise until the gap of lower tape edge and the lower edge of the control head is about 0.25mm.
2) Observe surface of the audio head using a dental mirror.
3) Turn screw (C) clockwise or counterclockwise until the gap of lower tape edge and the lower edge of the control head is about 0.25mm.
(Refer to Fig. 6-7 and 6-8)
Fig. 6-7 Location of ACE Head Adjustment Screw
SCREW (A)
TLIT ADJUST
X-POSITION
ADJUSTING SLIT
SCREW (C)
HEIGHT ADJUST
HEIGHT ADJUST
SCREW (D)
X-POSITION LOCKING
X-POSITION LOCKING
SCREW (B)
AZIMUTH ADJUST
0 ~ 0 .25 mm
AUDIO HEAD
VIDEO HEAD
CONTROL HEAD
Fig. 6-8 ACE Head Height Adjustment
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