Read Sony SLV-AV100B / SLV-AV100NP / SLV-AV100UX / SLV-AV100VC Service Manual online
8-9
2-7. AUDIO SYSTEM ADJUSTMENTS
• For the adjustment of the audio system, perform in the SP mode if
there is no special notes. Use the alignment tape.
• Adjust both LCH and RCH.
[Connecting Instruments]
[Connecting Instruments]
2-7-1. AF Switching Position Adjustment (RP-213 Board)
[Adjustment Object]
To adjust the link of the Ach and Bch of the tape playback outputs.
If this specification is not satisfied, the noise will increase and cracking
sounds will be produced.
To adjust the link of the Ach and Bch of the tape playback outputs.
If this specification is not satisfied, the noise will increase and cracking
sounds will be produced.
Mode
Playback
Signal
Alignment tape
Measurement
CH1 : JL707(RP-213 board)
point
CH2 : CN502 pin3(RP SWP)(RP-213 board)
Measuring
Oscilloscope
instrument
Adjustment
PROGRAM +/– button
element
Specified
No dropouts in the RF signal
value
[Adjusting Method]
1) Playback the alignment tape. short the adjustment land JL207
1) Playback the alignment tape. short the adjustment land JL207
(MA-283 board) to the ground for 300 msec or more to enter the
RF SWP adjustment mode.
RF SWP adjustment mode.
2) Verify that "AD RF xx (xx : data value)" are indicated on the
display tube.
3) Press REC button.
4) Verify that "AD HF xx (xx : data value)" are indicated on the
4) Verify that "AD HF xx (xx : data value)" are indicated on the
display tube.
5) Use PROGRAM +/– buttons to adjust so that the portion A is
minimized.
6) Press PAUSE and write the data.
Fig. 8-2-14.
RF signal dropout (Should be minimized)
A
A
OK
NG
Note :
The RF SWP adjustment should be completed before
performing this adjustment.
performing this adjustment.
CH1
JL 707
JL 707
CH2
CN502 pin
CN502 pin
3
(RF SWP)
Audio
Oscillator
Oscillator
Attenuator
AUDIO
LINE IN
LINE IN
AUDIO
TAPE/MD
REC OUT
TAPE/MD
REC OUT
47k
Ω
VCR
Audio Level Meter
or Distortion Meter
or Distortion Meter
Fig. 8-2-13.
•
Hi-Fi Audio System Adjustment
Perform the adjustment setting the switches and controls on the
following positions if there is no special indications.
•
following positions if there is no special indications.
•
AUDIO
switch ............................................................... LINE
•
AUDIO MONITOR
switch * ....................................... Stereo
* : Remote commander
600
Ω
Click on the first or last page to see other SLV-AV100B / SLV-AV100NP / SLV-AV100UX / SLV-AV100VC service manuals if exist.