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Service Program - Marantz SR14 Service Manual

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8. SERVICE PROGRAM
REMARK
If these service programs are set, Ail user preset memories will be cleared.
1. FACTORY mode (Tracking point memory)
This FACTORY mode can be use for measurement of the tuner circuit.
'
When the product is POWER ON, press both [ MEMO ] and [ DISPLAY OFF ] buttons simultaneously over 3 seconds.
FLD shows "FACTORY" for 3 seconds. Press [ PRESET ] button, FLD shows "PRESET SEL".
The tuning frequencies are memorized as follows.
FMAUTO | _U.KNS | 90.0 | 98.0 | 106.0 | 87.5 |
[MHz]
| Band | scansTep | ps | pe | pr | pa | po | pio | pu | Pia |
| tokHz(u) | 600 | 1000 | i400 f 0
AM [kHz] | 9kH2(F.K,S) | 603 | 999 | 1404 | sat
| mwawiny | 603 | 999 | r404 | 171 | 207 | 270 | 152 | 531 |
2. FLD segment check mode
This mode is available to check all luminous segments by the following steps.
1. When the product is FACTORY mode ( Refer to above mentioned "1. FACTORY mode"), press [ DISPLAY OFF ] button. FLD
shows "SERVICE" for 2 seconds.
2. All segments and all LED light up for 5 seconds.
3. Each segment lights up step by step.
4. Press [ DISPLAY OFF | button again, then this mode will be stopped and the product will be FACTORY mode.
3. Version of microprocessor (CPU)
This program is available to confirm the version of each CPU by the following steps.
QY01 (main) : When the product is POWER ON, press both [ CL ] and [ TREBLE Y ] buttons simultaneously over 3 seconds.
FLD shows the version of program code for QY01.
Q691 (DSP) : When the product is POWER ON, press both [ CL ] and [ BASS Y ] buttons simultaneously over 3 seconds.
FLD shows the version of program code for Q691.
4. Input and output test mode
This mode is available for the functions as shown in Fig 1 by the following steps.
1.When the product is FACTORY mode ( Refer to above mentioned "1. FACTORY mode"), press both { MEMO ] and [ TREBLEV]
buttons simultaneously.
2. FLD shows "AUTO D1". By pressing both [ MEMO ] and [ TREBLE VW ] buttons simultaneously each time, the mode is changed
in the following order.
Fig 1 Input and output test mode
ORDER | INDICATION for
MODE FUNCTION
FLD
1
AUTO D1
Input selection mode (without using system setup menu)
|
2
ALL CH D1
5 or6 channels output mode (This mode is available for 2 channels input)
3
INPULSE --
This mode is development use only
4
CD/DIG1:
This mode is the same status as FACTORY mode
57
MARA-00722 / DRUCK 28
4.1. Input selection mode (without setting to system setup menu)
This mode is available to select the input without setting to system setup menu by the following steps.
1.When FLD shows "AUTO D1"( Refer to "4. Input and output test mode"), the input can be shifted by pressing [ MODE ] button
for the remote commander only each time as shown in Fig 2. ( [ MODE ] button is in page4 of AMP function for RC-18SR*)
Fig 2. Input selection order by pressing [ MODE] button each time
INDICATION for | INPUT STATUS
FLD
1
AUTO Di
DIG. 1 IN
2
AUTO D2
DIG. 2 IN
3
AUTO D3
DIG. 3 IN
4
AUTO D4
DIG. 4 IN
|
5
AUTO RF
RE IN
sh
6
AUTO CD
CD IN (Analog)
Note: Surround mode is fixed "AUTO" mode automatically.
4.2. 5.1 channels output mode
This mode is available to output the same signal from 5 channels, even though 2 channels audio signal comes in.
As the result, all channels output can be confirmed by using analog stereo signal or PCM audio signal.
AC-3 or DTS source is not necessary to output from any channel in this mode.
1. When FLD shows "ALL CH D1" (Refer to "4. Input and output test mode'), the input can be shifted by pressing [ MODE ]
button for the remote commander only each time as shown in Fig 3.
( [ MODE ] button is in page4 of AMP function for RC-18SR*)
2. Supply to 2 channels PCM signal for digital input or 2 channels analog signal for analog input. But, Left channel and Right
channel of input signal should be equal.
3. Then each output from the product is the same as the input signal. (Subwoofer channel is respond to lower than 80Hz signal)
Fig 3. Input selection order by pressing [ MODE] button each time
ORDER
INDICATION for
INPUT STATUS
FLD
1
ALL CH D1
DIG. 1 IN
2
ALL CH D2
DIG. 2 IN
3
ALL CH D3
DIG. 3 IN
4
ALL CH D4
DIG. 4 IN
5
ALL CH RF
RF IN
6
ALL CH CD
CD IN (Analog)
5. Transistor MUTE mode
In mute situation on the product, output signal is muted by Volume contro! IC and muting transistor.
But, this mode is available to work the muting transistor only by the following steps.
1.When the product is FACTORY mode ( Refer to "1. FACTORY mode"), press [ MUTE ] button for remote commander only.
2. FLD shows "TrMUTE ON", then muting transistor circuit is active only.
6. How to reset the product
When the product is POWER ON, press both [ CL ] and [ DISPLAY OFF ] buttons simultaneously.
FLD shows "DEFAULT" for 3 seconds, then all memories are cleared.
Note
* : The remote controller RC2000mkil is available instead of RC-18SR for [ MODE] button.
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