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SERVICE TEST PROGRAM
TUNER
QUARTZ
TEST
TEST
N
TUNER
Button pressed?
Y
Display Tuner Version
"ccc"
Output at (Front Display Board)
N
TUNER
Button pressed?
Service frequencies are
copied to the RAM (see Table 1)
Tuner works normally except:
PROGRAM button
Output at (Front Display Board)
pin 19 of uP = 2,929.6875Hz
N
Disconnect
Mains cord ?
Y
Service Mode left
Oversea
PRESET
"OSE"
1
87.5MHz
2
108MHz
3
531 / 530kHz*
4
1602 / 1700kHz*
558 / 560kHz*
5
6
1494 / 1500kHz*
7
87.5 / 98MHz*
8
87.5MHz
9
87.5MHz
10
87.5MHz
11
98 / 87.5MHz*
Table 1
* Depending on the selected grid frequency (9 or 10kHz)
Note:
a) By holding the TUNER and R buttons depressed while switching
on the Mains supply, the tuning grid frequency is toggled between
9kHz and 10kHz for the Oversea (/21) version.
b) This Tuner information is also applicable for /12 and /28 versions.
3-1
To start service test program
depressed while
plugging in the mains cord
Display shows the
DISPLAY
TEST
N
2
O
Button pressed?
Button pressed?
Y
Y
Display shows
Display shows Figure 1 and
32K
switch all LEDs on (except VU
Volume & ECO POWER LEDs),
pin 19 of uP = 2048Hz
and full VU deflection.
O
N
2
Button pressed?
Button pressed?
Y
Y
Display shows
Display shows Figure 2
12M
and switch alternate LEDs on
(see Table 2),
and partial VU deflection.
9
N
9
Button pressed?
Button pressed?
Y
Y
FW-V520 , FW-V720
LEDs
FW-V780 , FW-V785
FW-V795
DISC 1
On
DISC 3
On
TUNER
On
TAPE
On
VAC
On
VU BACK LIGHT
On
VU VOLUME
On
Table 2
™
hold
& Aux
S refers to Service Mode
V refers to Version
ROM version
"S-Vyy"
yy refers to Software version number of the uProcessor
(Main menu)
(counting up from 01 to 99)
VCD
TEST
N
VCD Button
pressed?
Y
INITIAL
LEVEL
DISPLAY
Choose level
by pressing
1
VCD VER
N
Q
2
VCD DSA
VCD SLD
3
4
VCD FOC
R
VCD RAD
5
N
6
VCD JMP
Note: During this test only the standard OSD & Display message are shown on the TV screen.
The Display message takes a few seconds to appear.
Figure 1
Figure 2
3-1
N
DISPLAY MESSAGE
ACTION
OKAY
ERROR
-
Where xx is the MPEG software version.
VCD Vxx
DSA OK
DSA ER
Check DSA_Data, DSA_Str & DSA_Ack lines.
SLD OK
SLD ER
CDC Sledge Motor test.
FOC OK
FOC ER
Focus Servo Test, a disc is required in the Tray.
RAD OK
RAD ER
Radial Servo Test.
JMP OK
JMP ER
Disc Servo Test - jumping of 16 tracks.
Press 9 to exit
TEST
Activated with
R
EEPROM TEST
9 to Exit
Q
EEPROM FORMAT
TEST
ROTARY
Rotary Volume Knob
ENCODER TEST
or
Jog Shuttle
DEMO TOGGLE
DSC
LEAVE SERVICE
Disconnect
mains cord
TEST PROGRAM
Various
other Tests
ACTION
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.
Load default data. Display shows "NEW"
for 1 second.
Caution!
All presets from the customer will be lost!!
Display shows value for 2 seconds.
Values increases or decreases in steps of 1
until 0 (Min.) or 40 (Max.) is reached.
Pressing this button will toggle between
DEMO ON and DEMO OFF. The DEMO
status will scroll once across the Display.
Mini2001/Mini2002 VCD_Series Service Test Program (dd wk0141)
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