Kenwood Ez700SR Service Manual page 18

Ez700SR/Ez900HDS
3-2-3. Reception mode switching (Ez900HDS only)
In each band, every time the Preset 5 key is pressed, the re-
ception mode is switched in the following manner : Auto →
Digital → Analog → Auto. In order to display reception mode,
select Station in the DISP switching on the H/U.
3-2-4. Entering the reverse test mode for servicing
In each band, by pressing Preset 6 key, it is possible to enter
the reverse test mode for servicing. When this mode is en-
tered, the frequency display will show a blank. In order to dis-
play frequency, select frequency in the DISP switching on the
H/U.
FM1
1 2
3-3. Reverse test mode for servicing
Shown below are allocations of preset keys in the reverse test
mode for servicing.
Reverse test mode preset key allocation
1
HF1 Call tf1
Memory Verify
HF2 Call tf2 sm2
Memory Verify
HF3 Call tf3
Memory Verify
HA1 Call - sm 1
Memory Verify
Note : Those in italic indicate Ez900HDS only.
3-3-1. Beginning tuner pack adjustment
In the band AM, when a long-push is effected on the Preset 6
key, the tuner pack adjustment mode can be entered. When
the mode is entered, "000" is displayed in the frequency sec-
tion. If there is an error in reading EEPROM, "8 0" is displayed.
In order to display frequency, select Frequency in the DISP
switching on the H/U.
Note: When entering this mode, EEPROM adjustment data
is cleared even with the tuner pack adjusted sets. This mode,
therefore, should not be entered except at the time of tuner
pack adjustment.
Prior to adjustment, adjustment signal of AM 1000kHz
should be input. When the adjustment begins, all polling is
18
HD RADIO TEST MODE
.
3 4 5 6
2 3 4 5
- - Ber Gain Start
Set Gain
- - -
ssl2 Ber Gain Start
- - - Set Gain
- - Ber Gain Start
- - - Set Gain
Ber Gain Start
ssl 1
Set Gain Alignment
- - -
stopped, which makes normal operation impossible imme-
diately after the adjustment. For normal operation, the unit
must be rebooted. The polling is stopped even during S-
meter display. This means that S-meter display function is
stopped. (ACC ON/OFF will make the display come back
again.)
HA
1
Display after successful adjustment
HA
1
Display after un-successful adjustment
3-3-2. Tuner pack adjustment
In the items 3-2-3 through 3-2-6 below, the adjustment condi-
6
tions of the tuner packs are displayed in the frequency display
-
section. In order to display frequency, select frequency in the
-
DISP switching on the H/U. The display format of the adjust-
-
ment conditions will be made in 3 digits in the following man-
-
ner.
-
* At the time of replacing the tuner pack, it is necessary to
-
conduct this operation.
-
EEPROM un-written
In adjustment
Adjustment successful
Adjustment unsuccessful : "(item ID) (blank) 0"
Verify OK
Verify NG
FM1
1
3-3-3. FM tracking filter adjustment
87.9MHz adjustment (Item ID1) : Preset 1 for Band FM1
98.1MHz adjustment (Item ID2) : Preset 1 for Band FM2
107.9MHz adjustment (Item ID3) : Preset 1 for Band FM3
000.
2 3 4 5 6
8 0.
2 3 4 5 6
: "000"
: "(item ID) (blank) (blank)"
: "(item ID) (blank) 1"
: "111"
: "8 (blank) (item ID)"
111.
2 3 4 5 6