Pioneer MJ-D707 Service Manual - Page 48

Jitter/C1 Error Check at the time of Recording/Playback

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MJ-D707, MJ-17D Jitter/C1 Error Check at the time of Recording/Playback Step No. Operation Keys and Operation Method FL Display Status Remarks 1 Power ON while holding the ENTER key and the EJECT Test mode PLAY key depressed. 2 Insert the test disc (GGF1277). LOADING GRT AJST 3 Perform " Normal Adjustment " (step 3, step 4). AUTO AJST 4 Press the NAME CLIP key twice. TEST REC TEST REC mode 5 Press the NAME key and display the inner circumference address. a0050 pw0D 6 When the PLAY key is pressed, TEST REC starts, a0069 pw0D Note: When the initial address (0050) part of and when 25 addresses or more have been sent, TEST REC the inner circumference (or intermediate/ stop by pressing the STOP key. outer circumference) has been used 1000 7 Press the NAME key and display the inner circumference address. a0050 pw0D times or more, press the CUE key and shift the address by 10hex. (The address is shifted (up to 10 times) according to the 8 Press the NAME CLIP key and display the a03C0 pw0D use frequency of the disc.) intermediate circumference. 9 Perform step 6. a03D9 pw0D TEST REC 10 Press the NAME key and display the inner circumference address. a0050 pw0D 11 Press the NAME CLIP key twice and display the a0700 pw0D outer circumference address. Intermediate and outer circumference may be omitted. 12 Perform step 6. a0719 pw0D TEST REC 13 Press the NAME CLIP key. TEST PLAY TEST PLAY mode 14 Perform steps 5 to 13 of " Jitter/C1 Error Check a0069 c0009 Check the jitter/C2 error at the inner/ at the time of Playback ". a03D9 c0007 intermediate/outer circumference of GGF1277, At the time of self-recording, wait for seven a0719 c0006 and check that the jitter value satisfies the addresses after TEST PLAY start, and then press standard value of the following table. the REC key and enter into mean value mode. (Good recording may not be possible for several addresses at the beginning.) GGF1277 jitter value Inner circumference 33 nsec or less Intermediate circumference 31 nsec or less Outer circumference 31 nsec or less 15 Press the EJECT key. 16 Power OFF EJECT The test disc (GGF1277) is ejected. Test mode is ended. Jitter Meter LEVEL JITTER CORE MAIN UNIT ASSY SIDE A GND 48 EFM MON REFO Connection diagram

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MJ-D707, MJ-17D
48
Step No.
Operation Keys and Operation Method
FL Display
Status
Remarks
1
Power ON while holding the ENTER key and the
EJECT
Test mode
PLAY key depressed.
2
Insert the test disc (GGF1277).
LOADING
GRT AJST
3
Perform “
Normal Adjustment ” (step 3, step 4).
AUTO AJST
4
Press the NAME CLIP key twice.
TEST REC
TEST REC mode
5
Press the NAME key and display the inner
a0050 pw0D
circumference address.
6
When the PLAY key is pressed, TEST REC starts,
a0069 pw0D
and when 25 addresses or more have been sent,
TEST REC
stop by pressing the STOP key.
7
Press the NAME key and display the inner
a0050 pw0D
circumference address.
8
Press the NAME CLIP key and display the
a03C0 pw0D
intermediate circumference.
9
Perform step 6.
a03D9 pw0D
TEST REC
10
Press the NAME key and display the inner
a0050 pw0D
circumference address.
11
Press the NAME CLIP key twice and display the
a0700 pw0D
outer circumference address.
12
Perform step 6.
a0719 pw0D
TEST REC
13
Press the NAME CLIP key.
TEST PLAY
TEST PLAY mode
14
Perform steps 5 to 13 of “
Jitter/C1 Error Check
a0069 c0009
Check the jitter/C2 error at the inner/
at the time of Playback ”.
a03D9 c0007
intermediate/outer circumference of GGF1277,
At the time of self-recording, wait for seven
a0719 c0006
and check that the jitter value satisfies the
addresses after TEST PLAY start, and then press
standard value of the following table.
the REC key and enter into mean value mode.
(Good recording may not be possible for several
addresses at the beginning.)
15
Press the EJECT key.
EJECT
The test disc (GGF1277) is ejected.
16
Power OFF
Test mode is ended.
Jitter/C1 Error Check at the time of Recording/Playback
Jitter Meter
LEVEL
JITTER
GND
CORE MAIN UNIT ASSY
SIDE A
REFO
EFM MON
Inner circumference
33 nsec or less
Intermediate circumference
31 nsec or less
Outer circumference
31 nsec or less
Connection diagram
Note:When the initial address (0050) part of
the inner circumference (or intermediate/
outer circumference) has been used 1000
times or more, press the CUE key and
shift the address by 10hex. (The address
is shifted (up to 10 times) according to the
use frequency of the disc.)
Intermediate
and
outer
circumference
may be
omitted.
GGF1277 jitter value