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6-2
2-1-5.
Input/Output Levels and impedance
Video input: LINE-1 / LINE-3 IN(*1) / LINE-4 IN(*2)
EURO AV connector
Input signal: 1Vp-p, 75 ohms, unbalanced, sync
negative
LINE-2 IN / LINE-3 IN(*2), Phono jack
Input signal: 1Vp-p, 75 ohms, unbalanced, sync
negative
Input signal: 1Vp-p, 75 ohms, unbalanced, sync
negative
LINE-2 IN / LINE-3 IN(*2), Phono jack
Input signal: 1Vp-p, 75 ohms, unbalanced, sync
negative
Video output: LINE-1, EURO AV connector
Output signal: 1Vp-p, 75 ohms, unbalanced, sync
negative
LINE-2 OUT(*2), Phono jack
Output signal: 1Vp-p, 75 ohms, unbalanced, sync
negative
negative
LINE-2 OUT(*2), Phono jack
Output signal: 1Vp-p, 75 ohms, unbalanced, sync
negative
Audio input: LINE-1 / LINE-3 IN(*1) / LINE-4 IN(*2)
EURO AV connector
Input level: –6.3dBs
Input impedance: more than 47 kilohms
LINE-2 IN/ LINE-3 IN(*2), Phono jack
Input level: –7.5dBs
Input impedance: more than 47 kilohms
Input level: –6.3dBs
Input impedance: more than 47 kilohms
LINE-2 IN/ LINE-3 IN(*2), Phono jack
Input level: –7.5dBs
Input impedance: more than 47 kilohms
(0dBs=0.775Vrms)
Audio output:LINE-1, EURO AV connector
Output level: –6.3dBs at load impedance 47 kilohms
Output impedance: less than 10 kilohms
LINE-2 OUT(*2), Phono jack
Output level: –7.5dBs at load impedance 47 kilohms
Output impedance: less than 10 kilohms
Output impedance: less than 10 kilohms
LINE-2 OUT(*2), Phono jack
Output level: –7.5dBs at load impedance 47 kilohms
Output impedance: less than 10 kilohms
*1 : SLV-SE85/SF90 model only
*2 : SLV-SF99 model only
*2 : SLV-SF99 model only
2-1-6.
Adjustment Sequence
The adjustments should be performed in the following sequence.
2-2.
POWER SUPPLY CHECK
2-2-1.
Power Supply Voltage Check (MA-359 board)
Mode
E-E
Measuring instrument
Digital voltmeter
38V check
Measurement point
CN601 pin
4
Specified value
39 ± 3Vdc
13V check
Measurement point
CN601 pin
!¡
Specified value
13.55 ± 0.45Vdc
MTR12V check
Measurement point
CN601 pin
5 or 6
Specified value
13.5
+0.6
Vdc
–0.4
CAPSTAN VCC check
Measurement point
CN601 pin
7 or 8
Specified value
13.5 ± 0.5Vdc
SW12V check
Measurement point
CN602 pin
4
Specified value
12.0 ± 0.3Vdc
D6V check
Measurement point
CN602 pin
6
Specified value
5.9 ± 0.15Vdc
SW5V check
Measurement point
CN601 pin
2 or 3
Specified value
5.15 ± 0.15 Vdc
–30V check
Measurement point
CN602 pin
0
Specified value
–29 ± 3Vdc
+F, –F check
Measurement point
+ probe: CN602 pin
8
– probe: CN602 pin
!¡
Specified value
4.6 ± 0.5Vdc
[Check Method]
1)
1)
Check that each power supply voltage satisfies the specified
value.
value.
Power Supply Check
System Control Adjustment
Servo System Adjustments
Video System Check
Audio System Adjustments
6-3
2-3.
SYSTEM CONTROL SYSTEM ADJUSTMENT
2-3-1.
Clock Adjustment (FR-161 board)
[Adjustment Purpose]
To adjust the precision of the clock. If this specification is not
satisfied, the clock will lose or will gain time.
To adjust the precision of the clock. If this specification is not
satisfied, the clock will lose or will gain time.
Mode
E-E
Signal
Arbitrary
Measurement Point
IC180 Pin
^™ (BUZZER)
Measuring Instrument
Frequency counter
Adjusting element
CT180
Specified Value
f = 8.192000 to 8.1920325kHz
[Adjusting method]
1)
1)
Connect JL237 (Connecting point of R416 (2.2k
Ω
) and R412
(2.2k
Ω
)) and GND with a jumper wire.
2)
Adjust the BUZZER frequency (f) to the specified value with
CT180.
CT180.
3)
Remove the jumper wire.
2-4.
SERVO SYSTEM ADJUSTMENT
2-4-1.
RF Switching Position Adjustment
(MA-359 board)
(MA-359 board)
[Adjustment Purpose]
To adjust the link of the A-ch and B-ch of the tape playback outputs.
To make the unit compatible with other tapes and units. If this
specification is not satisfied, the link will appear on the screen and
the screen will be disrupted, etc.
To adjust the link of the A-ch and B-ch of the tape playback outputs.
To make the unit compatible with other tapes and units. If this
specification is not satisfied, the link will appear on the screen and
the screen will be disrupted, etc.
Mode
Playback
Signal
Alignment tape: SP mode color bar
portion
portion
[Adjustment method]
1)
1)
Connect RP-235 board CN261 pin
5 (AV ADJ) and GND
with a jumper wire.
2)
Check that “AP” indicator on the display window turns on.
3)
Remove the jumper wire.
4)
Press EJECT button. (RF switching position adjustment is
performed automatically. )
performed automatically. )
5)
Perform “Hi-Fi Switching Position Adjustment”.
2-4-2.
Hi-Fi Switching Position Adjustment
(MA-359 board)
[Adjustment Purpose]
To adjust the link of the A-ch and B-ch of the tape playback outputs.
To make the unit compatible with other tapes and units. If this
specification is not satisfied, the switching noise will be heard, etc.
To adjust the link of the A-ch and B-ch of the tape playback outputs.
To make the unit compatible with other tapes and units. If this
specification is not satisfied, the switching noise will be heard, etc.
Mode
Playback
Signal
Alignment tape: SP mode color bar
portion
portion
Measurement Point
CH1: RP-235 board CN341 pin
1
(HF ADJ)
CH2: RP-235 board CN261 pin
CH2: RP-235 board CN261 pin
2
(RF SWP)
Measuring Instrument
Oscilloscope
Specified Value
A = minimum
Note:
Perform “RF Switching Position Adjustment” before this adjustment.
[Adjustment method]
1)
1)
Connect RP-235 board CN261 pin
5 (AV ADJ) and GND
with a jumper wire.
2)
Check that “AP” indicator on the display window turns on.
3)
Remove the jumper wire.
4)
Press REC button.
5)
Check that “AH” indicator on the display window turns on.
6)
Press PROGRAM+ and PROGRAM– buttons and minimize
the part A of PB AF RF signal.
the part A of PB AF RF signal.
7)
Press PAUSE button.
8)
Check that the “AH” indicator turns off.
Fig. 6-2-3.
A
2 V
CH1
CH2
6-4
2-5.
VIDEO SYSTEM CHECK
2-5-1.
Playback Level Check (MA-359 board)
[Adjustment purpose]
Confirm that the playback video signal level is within the
specification.
Confirm that the playback video signal level is within the
specification.
Mode
Playback
Signal
Alignment tape: SP mode color bar
portion
portion
Measurement Point
CN200
!¡ pin (EEV PB) (Note1)
JW234 (IC001
!• pin : ARCVY)
(Note2)
Measuring Instrument
Oscilloscope
Specified Value
A=2.00 ± 0.18V
Note 1:
For SLV-SF99 model. (Except B model)
Note 2:
For SLV-SE85/SF90 or B model.
[Check method]
1)
1)
Check that the video signal level (A) satisfies the specified
value.
value.
Fig. 6-2-4.
2-5-2.
Sync AGC Check (MA-359 board)
[Adjustment purpose]
Confirm that the E-E video output level is within the specification.
Confirm that the E-E video output level is within the specification.
Mode
E-E
Signal
Color bar
Measurement Point
CN200
!¡ pin (EEV PB) (Note1)
JW234 (IC001
!• pin : ARCVY)
(Note2)
Measuring Instrument
Oscilloscope
Specified Value
A=2.0 ± 0.1V
Note 1:
For SLV-SF99 model. (Except B model)
Note 2:
For SLV-SE85/SF90 or B model.
Switch setting:
INPUT SELECT ........................................ L2
[Check method]
1)
1)
Input a color bar signal to VIDEO LINE 2 terminal.
2)
Check that the video signal level (A) satisfies the specified
value.
value.
Fig. 6-2-7.
2-5-3.
Deviation Check (MA-359 board)
[Adjustment purpose]
Confirm that the YFM signal deviation is within the specification.
Confirm that the YFM signal deviation is within the specification.
Mode
Recording and playback (SP mode)
Signal
Color bar
Measurement Point
CN200
!¡ pin (EEV PB) (Note1)
JW234 (IC001
!• pin : ARCVY)
(Note2)
Measuring Instrument
Oscilloscope
Specified Value
A=2.00 ± 0.18V
Note 1:
For SLV-SF99 model. (Except B model)
Note 2:
For SLV-SE85/SF90 or B model.
Note 3:
This check should be carried out upon completion of “Playback
Level Check” and “Sync AGC Check”.
Level Check” and “Sync AGC Check”.
Switch setting:
INPUT SELECT ................................... L2
[Check method]
1)
1)
Record the color bar signal.
2)
Playback the recorded section.
3)
Check that the video signal level (A) satisfies the specified
value.
value.
Fig. 6-2-6.
White (100%)
A
H
H
A
White (100%)
White (100%)
A
H
6-5
2-5-4.
DNR Y Level Adjustment (NR-27 board)
(SLV-SF99 model only. (Except B model) )
[Adjustment purpose]
Adjust the Y level during DNR ON.
Adjust the Y level during DNR ON.
Mode
Playback
Signal
Alignment tape: SP mode color bar
portion
portion
Measurement Point
CN001
9 pin (DNR Y)
Measuring Instrument
Oscilloscope
Adjusting element
RV002
Specified Value
A=2.0 ± 0.2V
Switch setting:
DNR ..................................................... ON
[Adjusting method]
1)
1)
Adjust the Y signal level (A) to the specified value with RV002.
Fig. 6-2-7.
2-5-5.
DNR C Level Adjustment (NR-27 board)
(SLV-SF99 model only. (Except B model) )
[Adjustment purpose]
Adjust the chroma level during DNR ON.
Adjust the chroma level during DNR ON.
Mode
Playback
Signal
Alignment tape: SP mode color bar
portion
portion
Measurement Point
CN001
5 pin (DNR C)
Measuring Instrument
Oscilloscope
Adjusting element
RV001
Specified Value
A=600 ± 70mV
Switch setting:
DNR ..................................................... ON
[Adjusting method]
1)
1)
Adjust the burst signal level (A) to the specified value with
RV001.
RV001.
Fig. 6-2-8.
2-6.
AUDIO SYSTEM ADJUSTMENT
[Connecting Instruments]
Fig. 6-2-9.
2-6-1.
Hi-Fi Audio System Check
2-6-1-1. E-E Output Level Check
[Adjustment purpose]
Confirm that the E-E audio output level is within the specification.
Confirm that the E-E audio output level is within the specification.
Mode
E-E
Signal
400Hz, –7.5dB
Measurement Point
LINE1 A(L) OUT (CN500
3 pin) or
LINE1 A(R) OUT (CN500
1 pin)
Measuring Instrument
Audio level meter
Specified Value
–6.3 ± 2dBs
Switch setting:
INPUT SELECT ................................... L2
[Check method]
1)
1)
Input a 400Hz, –7.5dBs signal to both L and R channels of
AUDIO LINE 2 terminal.
AUDIO LINE 2 terminal.
2)
Check that the audio output signal satisfies the specified value.
2-6-1-2. Overall Level Characteristics Check
[Adjustment purpose]
Confirm that the level characteristic is within the specification.
Confirm that the level characteristic is within the specification.
Mode
Recording and playback (SP mode)
Signal
400Hz, –7.5dBs
Measurement Point
LINE1 A(L) OUT (CN500
3 pin) or
LINE1 A(R) OUT (CN500
1 pin)
Measuring Instrument
Audio level meter
Specified Value
–6.3 ± 2dBs
Switch setting:
INPUT SELECT ................................... L2
[Check method]
1)
1)
Input a 400Hz, –7.5dBs signal to both L and R channels of
AUDIO LINE 2 terminal.
AUDIO LINE 2 terminal.
2)
Record the signal in the SP mode.
3)
Playback the recorded section.
4)
Press the AUDIO MONITOR button of the remote commander
and select the stereo audio mode (STEREO indicator on the
display window turns on.).
and select the stereo audio mode (STEREO indicator on the
display window turns on.).
5)
Check that the 400Hz signal level satisfies the specified value.
Audio oscillator
Attenuator
600
Ω
Audio level meter
or distortion meter
or distortion meter
47 k
Ω
LINE-2 IN
AUDIO
AUDIO
LINE-1
AUDIO OUT
AUDIO OUT
GND L
R
L
R
VCR
4
1
3
White (100%)
A
H
H
A
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