Alignment Tape (Krv-52Ne For Ntsc); Adjustment Using Alignment Tape - Sony SLV-360 Service Manual

2. ADJUSTING THE MECHANISM USING NEW ALIGNMENT TAPE (KRV-52NE for NTSC)
The conventional alignment tape (For NTSC) is now replaced
with alignment tape KRV-52NE, and the following describes how
to align the mechanism using the KRV-52NE. For details on the
use of KRV-51N2 for each model, refer to the service manuals
which will be issued in the future.
For tape path, audio
azimuth, and X-value
adjustments
Parts No.
Alignment tape
KRV-S2NE for NTSC_ | 8-!92-605-41
For electrical
adjustments (RF, AF,
and switching position)
and operation check
Alignment tape
KRV-51N2 for NTSC
8-192-605-32
Note: The KRV-52NE has or does not have Ver No. depending
on new or old type as shown below. (New one has Ver
No.)
Note that an adjusting method of X-value is different.
SONYeo
ALIGNMENT TAPE
KRV—52NE vo9g
TRACKING [Ver1.1]
(WHS)
TALLY CHART | MBHO |
AHH
GL134538 7
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Contents:
KRV-52NE (NTSC)
Recording only at 1 MHz, A-ch.
EP mode
Color bar
Mono. scope
Color bar
Mono. scope
2-1. ADJUSTMENT USING ALIGNMENT TAPE
(KRV-52NE for NTSC having no version No.)
X-VALUE ADJUSTMENT (Using the tape having
no version No.)
Purpose: To obtain compatibility with other VCRs.
Precaution: Before starting to adjust X-value, set the tracking
control at the center position. To set the tracking
2-1-1.
control at the center position for the VCRs
equipped with the (Al and [v] tracking control
keys, press both the ry and [v] tracking control
keys at the same time. For the VCRs not equipped
with the tracking control keys, deactivate the
automatic tracking control by pressing the tracking
key on the remote control unit
during threading operation (after a tape is inserted
but before the VCR starts playing back the tape).
Playback
Alignment tape KRV-52NE
(For NTSC having no version No.)
Oscilloscope
TIM/DIV: 2ms
Trigger source: CH2
Trigger slope: +
CH-1: Connector PB RF pin for RF PC
board check
CH-2: Connector RF SWP pin for RF
PC board check
Adjustment locations | X-value adjuster screw
Measuring instrument
Measuring point
Height adjuster nut Aaee Usienecow
X-value adjuster screw
RF output
RF output shall be maximum at the center
position of the tracking control.
[Adjustment Method]
Set the tracking control at the center position. For the VCRs
equipped with narrow gap video heads, set the X-value adjust-
ment screw where a maximum RF output is obtained. For the
VCRs equipped with wide gap video heads, set the X-value
adjustment screw both where a maximum RF output is obtained
and where the RF output decreases immediately when the [v]
tracking control key is pressed.