Pioneer DC-X77Z Servis Kılavuzu - Sayfa 28
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AdjUStment
Of
DgCk
I
*This deck is provided with an auto-tape-setector mechanism.
1. Head azimuth adiustment
Procedure
Tape
selector
(AUTO)
Mode
Input signal/test tape
Adjusting point
Measuring point
Adjustment value
Remark
1
NORM
PLAY
Play back lOkHz/-2OdB
on test tape STD-3318
H e a d a z i m u t h
adjusting screw
( F i g . 7 - 3 )
TP'I
1P2
( L )
( R )
Maximum playback
signal level
After completion,
lock the screw
2. Playback level adiustment
* Perform this adjustment precisely since this
adjustment is Dolby level setting during playback.
Procedure
Tape
selector
(AUTO)
Mode
Input signal/test tape
Adjusting point
Measuring point
Adjustment value
Remark
1
NORM
PLAY
Play back 31SH2/OdB
on test tape STD-331B
v R 2 O 2 ( R )
v R 2 0 1 ( L )
T P 1 ( L )
TP2 (R)
- 1 3 . 5 d B v + O . 5 d B
AdjUStment
Of DgCk
II
*This deck is provided with an auto-tape-setector
mechanism.
1. Head azimuth adiustment
Procedure
I a p e
s e l e c t o r
(AUrO)
Mode
Input signal/test tape
Adjusting point
Measuring point
Adjustment value
Remark
'l
NORM
PLAY
Play back 315H2/OdB
on test tape STD-3318
H e a d a z i m u t h
adjusting screw
( F i s . 7 - 3 )
r P l ( L )
r P 2 ( R )
Maximum playback
signal level
After completion.
lock the screw.
2. Playback level adiustment
* Perform this adjustment precisely since this adjustment is Dolby level
setting during playback.
Procedure
Tape
s e l e c t o r
(AUTO)
Mode
Input signal/test tape
Adjusting point
Measuring point
Adjustment value
Remark
3.
1
| NoRM I
pt-lv
I phy back 3l sHz/odB on I
vnzo+ 1a1
|
rrr lq
T-13jdB" to^5 dBT-
I
I
I test tap6 sTp-3318
|
vR203 {L}
|
rp2 {F)
|
|
Adilttmontlt
tacotding
dd
phybld(
' This adiustm€nt is p€rfom6d in ord6r to adjBt
the recording bia6. Th€r€tore, caution shoutd bs €x€F
fruqu!.rcy
chaaetarlldc!
cis€d not to worcen rh€ distortion ratio due to und€r bia6.
Procedure
Tape
s e l e c t o r
(AUrO)
Mode
Input signal/test tape
Adjusting point
Measuring point
Adjustment value
Remark
1
N O R M
REC
STD-6O8A and put into
R E C m o d e .
B i a s o s c i l l a t o r
frequency
T201
Between@and@
in Fig. 7-2
Confirm that the os-
cillation frequency
1 O 5 k H z + 1 k H z .
When it is not
w i t h i n t h e s t a n -
dard, put it into the
standard by ad-
j u s t i n g T 2 O 1 .
2
N O R M
REC
Apply the signal of 315H2
to the CD terminal and turn
the CD switch on.
Input signal level
T P 1
rP2
( L )
( R )
- 3 3 . 5 d B v + O . 5 d B
3
NORM
PEC/PLAY
Record and play back
3 1 5 H 2 a n d l O k H z o n t e s t
tape STD-6O8
VR2O8
VR2O7
( R )
( L )
TP1 (Ll
T P 2 ( R )
Repeat recording and playback, and com-
pensate so that the playback level of
l O k H z a g a i n s t 3 1 5 H 2 b e c o m e s O * O . 5 d B .
'
Sefect the test tape, tape selector, and Dolby NR switch and satisfy the frequency characteristic zone as shown in Figs. 7-5 and 7-8.
4. Recording lovel adiustment
' Set the graphic equalizer and balance volume to the center
and the mike mixing volume to the source side.
Procedure
Tape
selector
(AUTO)
Mode
Input signal/test tape
Adjusting point
Measuring point
Adjustment value
Remark
1
N O R M
REC
Apply the signal of 315H2
to the CD terminal and turn
the CD switch on.
Input signal level
T P l ( L )
T P 2 ( R )
- 1 3 . 5 d B v
2
N O R M
REC/PLAY
Record and play back
31 SHz to the test tape
sTD-608A.
VR2O6
VR2O5
( R )
(L)
T P 1 ( L )
( R )
rP2
Repeat recording and playback, and com-
pensate so that the playback level of
3 1 5 H 2 b e c o m e s - 1 3 . S d B v ( t o . S d B ) .
3
CrOz
REC/PLAY
Record and play back
31 SHz to the test tape
sTD-620.
TPl ( L )
( R )
TP2
Confirm that the playback level of 315H2
b e c o m e s - 1 3 . 5 d B v ( 1 1 . 0 d B ) .
3 7