Sony SLV-E130AE1, Service Manual

Page: 51 / 130

7-2
Mode E-E
Measuring Instrument Digital voltmeter
–11.5 V check
Measurement Point Pin
8
of CN600
(MA-314 board)
Specified Value 11.4 V
D6 V check
Measurement Point Pin
7
of CN600
(MA-314 board)
Specified Value 5.9 ± 0.2 V
+13 V check
Measurement Point Pin
2
,
3
of CN600
(MA-314 board)
Specified Value 13.75 ± 0.55 V
+35 V check
Measurement Point Pin
1
of CN600
(MA-314 board)
Specified Value 35 ± 3.5 V
2-2. POWER SUPPLY ADJUSTMENT
2-2-1. Power Supply Check
Checking Method:
1) Confirm that each voltage meets its specified value.
Checking power supply
Video system
adjustment
Servo system adjustment
Audio system
adjustment
2-1-5. Specified I/O Level and Impedance
Input/output terminal
Video inputs
LINE IN : phono jacks
EURO-AV : 21-pin (Pin
@º
) 1 Vp-p, 75
Ω
,
unbalanced, sync nagative
Audio inputs LINE IN : phono jack
47 kW, –75 dBs (0 dBs = 0.775 Vrms)
EURO-AV : 21-pin (Pin
2
and
6
)
More than 10 k
Ω
, –4 dBs
Video outputs LINE OUT : phono jack
EURO-AV : 21-pin (Pin
!ª
) 1 Vp-p, 75
Ω
,
unbalanced, sync negative
Audio outputs LINE OUT : phono jacks
–7.5 dBs at load
impedance 47 k
Ω
Output impedance : less than 10 k
Ω
EURO-AV : 21-pin (Pin
1
and
3
)
Output impedance : less than 1 k
Ω
–4 dBs with 10 k
Ω
load
2-1-6. Adjusting Sequence
Make the electrical adjustment in the following sequence.
+1.2
–0.5