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Model
CD-C3H (serv.man6)
Pages
19
Size
764.96 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System / Section 1 - Text
File
cd-c3h-sm6.pdf
Date

Sharp CD-C3H (serv.man6) Service Manual ▷ View online

CD-C3H/CP-C3H
– 17 –
No
ASPM, summary operation
Hold down the 
ASPM button for 3 more second.
“ASPM” blinks in the display
.
Preset CH memory full over?
No operate. 
After displayed “END”. Return to
previous station.
SD (TUNE) DET out OK?
If count 1st OK?
If count 2nd OK?
RDS signal or not?   PI—identify
Comparing PI cord same or not?
between current receiving PI and
before PI which is already memorized
by 
ASPM on this time.
Comparing freg. same or not?
between current receiving frequency
and (already) previously memorized
frequency
.
Memorized to the lowest
vacant preset channel.
Preset CH memory become full over?
Begin to 
ASPM SCAN from the next
CH-SP
AN again.
Repeat and continue with same format
ASPM operation untill 108 MHz.
After reached 108 MHz, displayed the
TTL
 quantity of memorized stations.
And return to the previous receiving
freq. automatically
.
Displayed the 
TTL
 quantity of memo-
rized stations by 
ASPM operation on
this time. 
And return to the previous
receiving freq. automatically
.
Ye
s
No
Ye
s
Ye
s
Ye
s
Ye
s
No
No
No
No
No
No
Ef
fect
Pass
No ef
fect
Pass
No ef
fect
Pass
No ef
fect
Pass
No ef
fect
Ye
s
No
Ye
s
Compare the field strength of current
receiving signal. Is receiving signal
stronger than signal which has same PI
cord and is already memorized to
preset memory ahead of this receiving
time?
Ye
s
No ef
fect
No
No ef
fect
Comparing freg. same or not?
Between current receiving frequency
and (already) previously memorized
frequency
.
Ye
s
Memorized to the lowest
vacant preset channel.
Ye
s
No ef
fect
Begin to scan start 87.50 
→ 
108.00 MHz
CD-C3H/CP-C3H
– 18 –
4. No adjust type (None adjusting circuit.)
5. Added EON button.
6. Need to change RDS logo due to add EON feature.
7. Added EON—TI, EON—PTY function.
3. Summary of CD-C3H RDS—EON operation
EON—PTY:
Select and set the desired “PTY” 
→ 
stand-by
→ 
switch to ON(other network) Station at the
start of desired PTY automatically 
→ 
stay and listen to PTY of ON station 
→ 
switch back to TN(This net)
station automatically at the end of PTY(ON) i.e. after changing to another PTY(except AF M FAIRS) or
cancelling to receive PTY of ON station midway.
EON—TI:
Select and set the “TI” 
→ 
stand-by 
→ 
switch to ON station at the start of traffic announcement automati
cally 
→ 
stay and listen to TA of ON station 
→ 
switch back to TN station autmatically at the end of TA(ON).
ie after TA(ON) is over or cancelled to receive TA of ON station midway.
When switching TN 
→ 
ON station.
In case of exist 2 more stations having the desired(specified) “PTY” or “TI”, the receiver will select and switch to ON station
comparing field strength at the same time. But when the frequency of ON station exists in the preset-memory, then reciver
switches straight to that ON station(CH), without comparing field strength so can make a quick switching from TN—ON  sta
tion. Preset memory takes priority of switching TN—ON station.
therefore ASPM is usefull not only for PTY search but also for rapid EON switching. Anyway CD-C3H EON is basically stand-
by and receiving method, along with the Guidelines for EON implementation.
• ASPM SCAN: 87.50MHz 
 108.00 MHz.
• Only RDS signal is memorized by ASPM because RDS signal has PI code and is suitable and convenient for ASPM operation.
  ASPM
  Comparing field strength, only one strongest RDS station is memorized of all stations (repeater relay stations)  that have same
PI code.
Same PI code —  freq: different
   (AF’S)
      PS: same
      PTY: same
Each PI has AF’S list by individually.
Exa: P1 has f
1
, f
2
, f
3
 (same PTY).
        P2 has f
4
, f
5
 (same PTY).
[For example]
Pickup and memorized to preset CH.
f 1
f 2
f 3
P 1 (PI cord)
PS 1 (Station Name)
f 5
f 4
P 2
PS 2
     f 6
f 7
f 8
P 3
PS 3
f 9
f 10
f 11  f 12  f13
P 4
PS 4
  Select signals (f1, f5, f7, f10) are memorized in the preset memory by ASPM.
• If tentative - ASPM operation is repeated intententionally, never memorized (over write) at the same frequecy.
1st time ASPM 
→ 
strongest stations of each pi are memorized.
ASPM is not only very usefull for PTY search, but also EON operation.
2nd time ASPM 
 2nd strong stations of each pi are memorized and so on.
PTY search function is equal to FM band search function as a result.
1. Introduction of RDS for CD-C3H
CD-C3H RDS function is equal to adding EON feature to the current CD-C75H RDS.
EON feature is EON—PTY and EON—TI.
Although PTY and TI indicators are separated, PTY contains TI in the PTY items (software) like current PTY search items.
NEWS,
AFFAIRS,
INFO,
ALARM,
TI
(TTL 17 kinds)
EON—PTY
EON—TI
Can select and stand-by
Can select and stand-by
EON—PTY and EON—TI are basically stand-by 
 receive the desired program of ON station.
2. The difference point from current CD-C75H RDS. (CD-C75H — CD-C3H)
1. PTY item: added TA.TTL 18 kind.
2. Each “TP”, “TA” ind. light up or go out individually.
    “TA” ind. doesn’t light up on current model, CD-C75H due to none EON—TI.
3. Added 3 indicators(in FL) due to adding EON feature.
    EON: Lights up only during receiving EON data (14A).
    TI:
During EON-TI stand-by 
 Light up
During receiving ON station. 
 blink.
    PTY: During EON-PTY stanb-by 
 Light up
During receiving ON station. 
 blink.
---
---
CD-C3H/CP-C3H
– 19 –
EON summary notice for reference
1. EON-TI/PTY
EON stand-by can be set, only when EON ind. lights up.
While EON ind. goes out (NO EON STATION), EON stand-by can't be set.
If the EON button is pressed, then “NO EON” is indication the display.
2. EON-TI/PTY
Even if switch back ON
TN station continue to keep EON stand-by.
3. EON-TI
Don’t switch TN
ON during TN broadcast TA. (same item)
4. EON-TI/PTY
EON can be cancelled during receiving ON station by pressing EON button if necessary and
switch back ON
TN.
5. EON-TI/PTY
EON stand-by is perfectly cancelled (cleared) by pressing EON button 2 times during stand-by or
powerOFF or Tun Up/Down or change band or recall pre-set CH.
6. EON-TI/PTY
After setting EON stand-by, stand-by items can be confirmed by pressing EON button one time.
7. EON-TI/PTY
EON button function: • EON setting
 • Confirm stand-by items
 • Cancel (ON
TN)
 • EON clear cancel (2 times)
8. EON-TI/PTY
9. EON-TI
EON-TI stand-by can't be set. When TP=0,TA=0(TN) even if EON ind. lights up and the EON button is
pressed then “NO TI” is indication the display.
10. EON-PTY
Don’t switch TN
ON during TN broadcast same specified PTY. (same item of PTY)
11. EON-TI/PTY
Switch TN
ON
 TN station one cycle.
Never switch TN
ON1
ON2
Other net to other net station.
12. EON-TI/PTY
After switch TN
ON station. When ON station is NO RDS, NO signal, TA=OFF or different PTY items.
The receiver switch back ON
TN displaying “NO READY”.
13.
During receive ON station. when ON station become to be NO RDS, NO signal, TA=ON to OFF or
different PTY item, The receiver switch back ON
TN.
14. EON-TI/PTY
Switch TN
ON in case of 2 more stations exist, comparing field strength and switch to the strongest
station, if these signals are same strength, switch to the first previous station.
If same frequency as AF'Sexists in the preset memory, then switch TN
ON (preset memory station)
straight.
In case of exist 2 more preset memories of AF’S,then switch to the preset CH which taken in EON DATA
first, also in this case no concern to field strength.
15.
Even if switch TN
ON preset memory straight, that ON station is very weak signal, then search another
AF'S (ON) station comparing field strength and switch to the strongest station as a result. Of all atations
of AF'S are very weak or no good condition, then, switch back ON
TN automatically display "NO
READY".
16. EON-TI/PTY
No linkage volume, power ON/OFF, and switch function.
Traffic Programme code
(TP)
Traffic Announcement code
(TA)
Applications
OFF
OFF
This programme does not carry traffic announcements nor does
it refer, via EON, to a programme that does.
OFF
ON
This programmecarries EON information about another
programme which gives traffic information.
ON
OFF
This programme carries traffic announcements but none are
being broadcast at present and may also carry EON information
about other traffic announcements.
ON
ON
A traffic announcement is being broadcast on this programme at
present.
CD-C3H/CP-C3H
– 19 –
EON summary notice for reference
1. EON-TI/PTY
EON stand-by can be set, only when EON ind. lights up.
While EON ind. goes out (NO EON STATION), EON stand-by can't be set.
If the EON button is pressed, then “NO EON” is indication the display.
2. EON-TI/PTY
Even if switch back ON
TN station continue to keep EON stand-by.
3. EON-TI
Don’t switch TN
ON during TN broadcast TA. (same item)
4. EON-TI/PTY
EON can be cancelled during receiving ON station by pressing EON button if necessary and
switch back ON
TN.
5. EON-TI/PTY
EON stand-by is perfectly cancelled (cleared) by pressing EON button 2 times during stand-by or
powerOFF or Tun Up/Down or change band or recall pre-set CH.
6. EON-TI/PTY
After setting EON stand-by, stand-by items can be confirmed by pressing EON button one time.
7. EON-TI/PTY
EON button function: • EON setting
 • Confirm stand-by items
 • Cancel (ON
TN)
 • EON clear cancel (2 times)
8. EON-TI/PTY
9. EON-TI
EON-TI stand-by can't be set. When TP=0,TA=0(TN) even if EON ind. lights up and the EON button is
pressed then “NO TI” is indication the display.
10. EON-PTY
Don’t switch TN
ON during TN broadcast same specified PTY. (same item of PTY)
11. EON-TI/PTY
Switch TN
ON
 TN station one cycle.
Never switch TN
ON1
ON2
Other net to other net station.
12. EON-TI/PTY
After switch TN
ON station. When ON station is NO RDS, NO signal, TA=OFF or different PTY items.
The receiver switch back ON
TN displaying “NO READY”.
13.
During receive ON station. when ON station become to be NO RDS, NO signal, TA=ON to OFF or
different PTY item, The receiver switch back ON
TN.
14. EON-TI/PTY
Switch TN
ON in case of 2 more stations exist, comparing field strength and switch to the strongest
station, if these signals are same strength, switch to the first previous station.
If same frequency as AF'Sexists in the preset memory, then switch TN
ON (preset memory station)
straight.
In case of exist 2 more preset memories of AF’S,then switch to the preset CH which taken in EON DATA
first, also in this case no concern to field strength.
15.
Even if switch TN
ON preset memory straight, that ON station is very weak signal, then search another
AF'S (ON) station comparing field strength and switch to the strongest station as a result. Of all atations
of AF'S are very weak or no good condition, then, switch back ON
TN automatically display "NO
READY".
16. EON-TI/PTY
No linkage volume, power ON/OFF, and switch function.
Traffic Programme code
(TP)
Traffic Announcement code
(TA)
Applications
OFF
OFF
This programme does not carry traffic announcements nor does
it refer, via EON, to a programme that does.
OFF
ON
This programmecarries EON information about another
programme which gives traffic information.
ON
OFF
This programme carries traffic announcements but none are
being broadcast at present and may also carry EON information
about other traffic announcements.
ON
ON
A traffic announcement is being broadcast on this programme at
present.
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