Kenwood C-V751, Руководство по обслуживанию

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C-V751
3
CIRCUIT DESCRIPTION
DESTIN-
ATION
u-COM
DESTINATION
BAND
RECEIVING
FREQUENCY
RANGE
CHANNEL
SPACE
IF PLL
TUNER SW
TSW4 TSW3 TSW2 TSW1
(22) (21) (20) (19)
E/X
E3
RDS
FM
AM
87.5MHz~108.0MHz
531kHz~1602kHz
50kHz
9kHz
+10.7MHz
+450kHz
25kHz
9kHz
0 1 0 1
T
E4
LW
RDS
FM
MW
LW
87.5MHz~108.0MHz
531kHz~1602kHz
153kHz~279kHz
50kHz
9kHz
9kHz
+10.7MHz
+450kHz
+450kHz
25kHz
9kHz
9kHz
0 1 1 0
FREQUENCY FREQUENCY
M.ch
E/X T
M.ch
E/X T
1 FM 98.0MHz FM 98.0MHz 21 AM 531kHz LW 270kHz
2 FM 87.5MHz FM 87.5MHz 22 FM 87.5MHz LW 216kHz
3 FM 89.1MHz FM 89.1MHz 23 FM 87.5MHz LW 162kHz
4 FM 108.0MHz FM 108.0MHz 24 FM 87.5MHz FM 87.5MHz
5 FM 90.0MHz FM 90.0MHz 25 FM 87.5MHz FM 87.5MHz
6 FM 87.5MHz FM 87.5MHz 26 FM 87.5MHz LW 279kHz
7 FM 87.5MHz FM 87.5MHz 27 FM 87.5MHz LW 270kHz
8 FM 87.5MHz AM 1602kHz 28 FM 87.5MHz LW 216kHz
9 AM 1602kHz AM 1440kHz 29 FM 87.5MHz LW 162kHz
10 AM 999kHz AM 999kHz 30 FM 106.0MHz LW 153kHz
11 AM 630kHz LW 216kHz 31 FM 87.5MHz FM 87.5MHz
12 AM 1440kHz AM 630kHz 32 FM 87.5MHz FM 87.5MHz
13 FM 106.0MHz FM 106.0MHz 33 FM 87.5MHz FM 87.5MHz
14 AM 531kHz AM 531kHz 34 FM 87.5MHz LW 279kHz
15 FM 87.5MHz FM 87.5MHz 35 FM 87.5MHz LW 270kHz
16 FM 98.0MHz FM 98.0MHz 36 FM 87.5MHz LW 216kHz
17 FM 98.5MHz FM 98.5MHz 37 FM 87.5MHz LW 162kHz
18 FM 87.5MHz AM 531kHz 38 FM 87.5MHz FM 108.0MHz
19 AM 990kHz AM 990kHz 39 FM 108.0MHz AM 999kHz
20 FM 97.7MHz LW 279kHz 40 AM 999kHz LW 216kHz
1. Conditions according to the destination
TUNER destination table
2. Contents of tuner preset memory
• Sub-clock oscillation diagnosis function The oscillation
diagnosis(existence oscillation and measurement of peri-
od) of a sub-clock is performed before the test mode is
entered. If the diagnosis result is OK, the system is
entered the test mode.
If the diagnosis result is NG, the oscillation of the sub-
clock diagnosed again. If the result is OK, the system
enters the test mode. If the diagnosis result is continuous-
ly NG 5 times, the system stops with ERR1 and ERR2
displayed.
3-5 Tuner test mode
(When selector is set to TUNER.)
• P.CALL of preset channel.
• S level indication.
Set the TUNER ATT to ON/OFF and display the S level in
hexadecimal when the [PTY] key is pressed.
• Indication of FL for TA NEWS and TIMER.
3-6 AMP test mode
(When the selector is set to positions other then TUNER.)
During the test mode, it can be operated in a special
manner that is different from an ordinary operation by
using the keys on the remote control or the main body,
specifically as shown in the following table.
KEYS FUNCTION or FL INDICATION REMARKS
AUTO One touch settings.
Volume value.
Volume value.
A.MEMO
Sub mute ON/OFF operation
and FL indication.(except for
stereo mode)
TIMER MODE One touch settings.
KEY FL INDICATION
[TA/NEWS]
[DISPLAY]
KEYS OPERATION
[TIMER SET]
Increments the P. CALL every time
this key is pressed.
[TIMER MODE]
Decrements the P. CALL every time
this key is pressed.
KEY OPERATION
[DIGITAL REC]
Selects the P.CALL steps cyclically.
10 20 30 40 01
3. Test mode
3-1 Entering the test mode
• Turn on the power while pressing the [OPEN/CLOSE] key.
• The test mode gets started while the power is turned on
after that,all the FLs will light up and the panel opens.
• Sub-clock oscillation diagnosis function is entered by
pressing the [DIGITAL REC MODE] key in the all FL light-
ing mode.
3-2 Canceling the test mode
The system is initialized and the test mode is canceled
when the AC power is turned off.
3-3 Initializing
The system is initialized when the power is turned on
while pressing the [ON STANDBY] key.
3-4 Contents of the test mode
• Key operation in all FL lighting mode.
• All FL lighting off mode.
KEYS OPERATION
All FL lighting off.
Normal indication.
KEYS OPERATION
[AUTO] Green LED lights on.
[A.MEMO] Red LED lights on.
• Selection of P. CALL steps.