3-1
3-1
Various
other Tests
Activated with
ACTION
TEST
Q
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
R
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.
Rotary Volume Knob
or
Jog Shuttle
ROTARY
ENCODER TEST
Display shows value for 2 seconds.
Values increases or decreases in steps of 1
until 0 (Min.) or 40 (Max.) is reached.
DSC
DEMO TOGGLE
Pressing this button will toggle between
DEMO ON and DEMO OFF. The DEMO
status will scroll once across the Display.
VCD Button
pressed?
Y
N
VCD
TEST
LEVEL
1
2
3
4
5
6
DISPLAY MESSAGE
VCD Vxx
DSA OK
SLD OK
FOC OK
RAD OK
JMP OK
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.
-
DSA ER
SLD ER
FOC ER
RAD ER
JMP ER
ACTION
Where xx is the MPEG software version.
Check DSA_Data, DSA_Str & DSA_Ack lines.
CDC Sledge Motor test.
Focus Servo Test, a disc is required in the Tray.
Radial Servo Test.
Disc Servo Test - jumping of 16 tracks.
Press
9
to exit
OKAY
ERROR
VCD VER
VCD DSA
VCD SLD
VCD FOC
VCD RAD
VCD JMP
INITIAL
DISPLAY
Choose level
by pressing
Q
R
O
Button pressed?
Y
Y
Y
N
N
N
O
Button pressed?
9
Button pressed?
Display shows
12M
Output at (Front Display Board)
pin 19 of uP = 2,929.6875Hz
Display shows
32K
Output at (Front Display Board)
pin 19 of uP = 2048Hz
QUARTZ
TEST
TUNER
Button pressed?
Disconnect
Mains cord ?
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
TUNER
Button pressed?
N
PRESET
1
2
3
4
5
6
7
8
9
10
11
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*
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.
Y
N
Y
N
Y
N
2
Button pressed?
2
Button pressed?
9
Button pressed?
DISPLAY
TEST
Display shows Figure 1 and
switch all LEDs on (except VU
Volume & ECO POWER LEDs),
and full VU deflection.
Display shows Figure 2
and switch alternate LEDs on
(see Table 2),
and partial VU deflection.
Figure 1
Figure 2
LEDs
DISC 1
DISC 3
TUNER
TAPE
VAC
VU BACK LIGHT
VU VOLUME
FW-V520 , FW-V720
FW-V780 , FW-V785
FW-V795
On
On
On
On
On
On
On
Table 2
To start service test program
hold
™
& Aux
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
Mini2001/Mini2002 VCD_Series Service Test Program (dd wk0141)
