Yamaha htr-5890 Servicehandleiding - Pagina 27
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- 1. Table of Contents
- 2. Service Manual
- 3. Important Notice
- 4. To Service Personnel
- 5. Front Panel
- 6. Remote Control Panel
- 7. Rear Panels
- 8. Specifications
- 9. Internal View
- 10. Disassembly Procedures
- 11. Updating Firmware
- 12. Self Diagnosis Function (Diag)
- 13. Amp Adjustment
- 14. Display Data
- 15. IC Data
- 16. Remote Control
11. FACTORY PRESET
This menu is used to reserve and inhibit initialization of the back-up RAM. The signals are processed using EFFECT
OFF. (The L/R signal is output using ANALOG MAIN BYPASS.)
CAUTION: Before setting to the PRESET RESERVED, write down the existing preset memory content of the Tuner in a
table as shown next page. (This is because setting to the PRESET RESERVED will cause the user memory
content to be erased.)
Preset group
P1
A
B
C
D
E
• PRESET STATIONS
STATION
FM FACTORY PRESET DATA (MHz)
PAGE NO.
U, C
1
87.5
2
90.1
3
95.1
4
98.1
A/C/E
5
107.9
6
88.1
7
106.1
8
107.9
12. AD DATA CHECK / FAN TEST
This menu is used to display the A/D conversion value
of the main CPU which detects panel keys of the main
unit and protection functions in % using the sub-menu.
During signal processing, the condition before
execution is maintained.
When K0/K1 menu is selected, keys become non-
operable due to detection of the values of all keys.
However, it is possible to advance to the next sub-
menu by turning the VOLUME of the main unit. When
using this function, note that turning the VOLUME
more than 1 click would cause the volume value to
change.
* The figures in the diagram are given as reference
only.
PRESET INHIBIT (Initialization inhibited)
RAM initialization is not executed. Select this sub-menu to protect the values set by the
user.
PRESET RESERVED (Initialization reserved)
Initialization of the back-up RAM is reserved. (Actually, initialization is executed the next
time that the power is turned on.) Select this sub-menu to reset to the original factory
settings or to reset the RAM. Any protection history will be cleared.
P2
P3
A
87.50
90.10
95.10
98.10
108.00
88.10
106.10
108.00
P4
P5
P6
STATION
AM FACTORY PRESET DATA (kHz)
PAGE NO.
U, C
1
630
2
1080
3
1440
4
530
B/D
5
1710
6
900
7
1350
8
1400
DC/PS (protection detection)
DC: DC detect protection value
Normal value: 1 to 13 (Reference voltage: 5V=100% )
PS: Power supply voltage protection value
Normal value: 19 to 29 (Reference voltage: 5V=100% )
* If DC or PS is out of the normal value range, the
protection function works to turn off the power.
HTR-5890
P7
P8
A
630
1080
1440
531
1611
900
1350
1404
27