Philips MZ-1000 Service Manual page 10

SERVICE TEST PROGRAM
TUNER QUARTZ
TEST
TEST
N
TUNER CLK/TIMER
Button pressed? Button pressed?
Y Y
Display Tuner Version
Display shows
"ccc"
12M
Output on Quartz-Test-Pin
pin 19 of uP = 2,929.6875Hz
N
TUNER
Button pressed?
CLK/TIMER
Button pressed?
Y
Service frequencies are
Y
copied to the RAM (see Table 1)
Tuner works normally except:
Display shows
PROGRAM button
32K
Output on Quartz-Test-Pin
pin 19 of uP = 2048Hz
N
Disconnect
Mains cord ?
9
Button pressed?
Y
Y
Service Mode left
USA Oversea
Europe
PRESET "EUR" "USA" "OSE"
87.5MHz
1 87.5MHz 87.5MHz
2 108MHz 108MHz 108MHz
530kHz
3 531kHz 531/530kHz*
4 1602kHz 1700kHz 1602/1700kHz*
560kHz
5 558kHz 558/560kHz*
6 1494kHz 1500kHz 1494/1500kHz*
7 87.5MHz 98MHz 87.5/98MHz*
87.5MHz
8 87.5MHz 87.5MHz
9 87.5MHz 87.5MHz 87.5MHz
87.5MHz
10 87.5MHz 87.5MHz
11 98MHz 87.5MHz 98/87.5MHz*
Table 1
Note: * Depending on the selected grid frequency (9 or 10kHz).
By holding the **SOURCE and **PLAY buttons depressed while
switching on the Mains supply, the tuning grid frequency
is toggled between 9kHz and 10kHz for the Oversea (/21)
version.
3-1
To start service test program
hold ** T & **SOURCE
depressed while
plugging in the mains cord
Display shows the
ROM version
"S-Vyy"
(Main menu)
ADC
TEST
N N
AUX
Button pressed?
Y
Display shows "ADC Value"
for ADC 1
(Input Line - Option)
N
N
AUX
Button pressed?
Y
Display shows "ADC Value"
for ADC 2
(Input Line - Key1)
N N
AUX
Button pressed?
Y
Display shows "ADC Value"
for ADC 3
(Input Line - Key0)
N
9
Button pressed?
Y
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.
Figure 1 Figure 2
The Remote Control must already be set to "AUX" mode before pressing
any of the specified Remote Control keys in the Service Test Mode.
All test buttons mentioned in the Service Test Program are activated
from the Remote Control unless otherwise specified.
** test buttons are activated from the Set.
S refers to Service Mode
V refers to Version
yy refers to Software version number of the uProcessor
(counting up from 01 to 99)
DISPLAY MP3 MODULE
TEST TEST
N
DIM
MP3-CD
Button pressed? Button pressed?
Y
Y
Display shows Figure 1
and switch all LEDs on
(see Table 2 - Pattern 1)
STEP DISPLAY
Choose level
by pressing 1 MP3CD
N
DIM
Button pressed? S TI-Vnn
2
Y
3 TI BUS
Display shows Figure 2
SLD I
4
and switch alternate LEDs on
(see Table 2 - Pattern 2)
T
5 SLD O
N
6 TI FOC
DIM
Button pressed?
Y
Note : Disc should be available on the tray before entering the Service Test Mode.
Display shows Figure 3
and switch all LEDs off
(see Table 2 - Pattern 3)
LEDs
N
9
Button pressed?
SOURCE
STANDBY / ECO POWER
Y
LCD BACKLIGHT
Figure 3
3-1
N
MESSAGE
ACTION
OKAY ERROR
- - Indicates the module used.
- - Version of the MPEG software (nn = Version Number).
BUS OK BUS ER Communication test between the Main uP and CD Module
- - CD SLEDGE MOTOR is moved in.
- - CD SLEDGE MOTOR is moved out.
FOC OK FOC ER FOCUS SERVO Test.
Press 9 to exit
Pattern 1 Pattern 2 Pattern 3
ON ON OFF
GREEN & RED GREEN OFF
ON DIM ON
Table 2
Activated with ACTION
TEST
T
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
9 to Exit
displayed.
S
EEPROM FORMAT Load default data. Display shows "NEW" for 1 second.
TEST
Caution!
All presets from the customer will be lost!!
Pressing this button will toggle between "DEMO ON"
DEMO TOGGLE MUTE
and "DEMO OFF". The DEMO status will scroll once
across the Display.
Disconnect
LEAVE SERVICE
TEST PROGRAM mains cord
LifeStyle Micro2002 (MZ-1x00) Service Test Program (dd wk0227)
Various
other Tests