Various
other Tests
Activated with
ACTION
TEST
S
EEPROM FORMAT
TEST
Load default data. Display shows "NEW" for 1 second.
Caution!
All presets from the customer will be lost!!
Disconnect
mains cord
LEAVE SERVICE
TEST PROGRAM
T
9
to Exit
EEPROM TEST
A test pattern will be sent to the EEPROM.
"PASS" is displayed if the uProcessor read back
the test pattern correctly, otherwise "FAIL" will be
displayed.
CENTER -
(RC)
AUTO STANDBY
TOGGLE
Pressing this button will toggle between the status
"AUTO STANDBY ON" and "AUTO STANDBY OFF".
The status will scroll once across the Display.
Rotary Volume
Knob
ROTARY
ENCODER TEST
Display shows value for 2 seconds.
Values increases or decreases in steps of 1 until
0 (Volume Min.) or 40 (Volume Max.) is reached.
Y
N
Y
N
N
B
II
Button pressed?
B
II
Button pressed?
B
II
Button pressed?
DISPLAY
TEST
Display shows Figure 1
and switch all LEDs on
(see Table 2 - Pattern 1)
Display shows Figure 2
and switch alternate LEDs on
(see Table 2 - Pattern 2)
LEDs
SACD
STANDBY / ECO POWER
LCD BACKLIGHT
Pattern 1
ON
GREEN
ON
Pattern 2
OFF
RED
ON
Pattern 3
OFF
OFF
ON
Table 2
Y
Y
N
9
Button pressed?
Display shows Figure 3
and switch all LEDs off
(see Table 2 - Pattern 3)
Figure 1
Figure 2
Figure 3
Y
N
Y
N
N
SOURCE
Button pressed?
SOURCE
Button pressed?
SOURCE
Button pressed?
ADC
TEST
Display shows
"ADC1 Value"
(Input Line - Key0)
Display shows
"ADC2 Value"
(Input Line - Key1)
Y
Y
N
9
Button pressed?
ADC Test is used for checking the ADC inputs
to the microprocessor.
The display shows an ADC value between 0
and 255 for an input signal between 0 and 5V.
Note :
If the ADC value on the NTC line is below 69,
the set will go to standby mode because the
temperature is too high.
Display shows
"ADC4 Value"
(Input Line - Option)
N
SOURCE
Button pressed?
Y
Display shows
"ADC3 Value"
(Input Line - AmNTC)
CLOCK/TIMER
Button pressed?
Y
Y
Y
N
N
N
CLOCK/TIMER
Button pressed?
9
Button pressed?
Display shows
32K
Output on Quartz-Test-Pin
pin 19 of uP = 2048Hz
Display shows
12M
Output on Quartz-Test-Pin
pin 19 of uP = 2,929.6875Hz
QUARTZ
TEST
PROG
Button pressed?
Disconnect
Mains cord ?
Y
Y
N
N
Y
Display Tuner Version
"ccc"
Service frequencies are
copied to the RAM (see Table 1)
Tuner works normally except:
PROGRAM button
Service Mode left
TUNER
TEST
PROG
Button pressed?
N
PRESET
1
2
3
4
5
6
7
8
9
10
11
Europe
"EUR"
87.5MHz
108MHz
531kHz
1602kHz
558kHz
1494kHz
87.5MHz
87.5MHz
87.5MHz
87.5MHz
98MHz
USA
"USA"
87.5MHz
108MHz
530kHz
1700kHz
560kHz
1500kHz
98MHz
87.5MHz
87.5MHz
87.5MHz
87.5MHz
Oversea
"OSE"
87.5MHz
108MHz
531/530kHz*
1602/1700kHz*
558/560kHz*
1494/1500kHz*
87.5/98MHz*
87.5MHz
87.5MHz
87.5MHz
98/87.5MHz*
Note: * Depending on the selected grid frequency (9 or 10kHz).
By holding the "SOURCE" and "PROG" buttons depressed
while switching on the Mains supply, the tuning grid frequency
is toggled between 9kHz and 10kHz for the Oversea (/21)
version.
Table 1
To start service test program
hold
T
& SOURCE
depressed while
plugging in the mains cord
Display shows the
ROM version
"S-Vyy"
(Main menu)
S refers to Service Mode
V refers to Version
yy refers to Software version number of the uProcessor
(counting up from 01 to 99)
SERVICE TEST PROGRAM
LX7000SA & LX8000SA_Service Test Program_dd wk0232
3-1
3-1