Service Test Program - Philips FW-V720 Service Manual

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SERVICE TEST PROGRAM

TUNER
TEST
N
TUNER
Button pressed?
Y
Display Tuner Version
"ccc"
N
TUNER
Button pressed?
Service frequencies are
copied to the RAM (see Table 1)
Tuner works normally except:
PROGRAM button
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.
3-4
To start service test program
plugging in the mains cord
QUARTZ DISPLAY
TEST TEST
N
O 2
Button pressed?
Button pressed?
Y Y
Display shows
Display shows Figure 1 and
32K
switch all LEDs on
Output at (Front Display Board)
(except VU Volume LED),
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
Output at (Front Display Board)
(see Table 2),
pin 19 of uP = 2,929.6875Hz
and partial VU deflection.
9
N
9
Button pressed?
Button pressed?
Y
Y
LEDs
FW-V720
DISC 1
On
DISC 3 On
TUNER On
TAPE On
VAC On
VU BACK LIGHT
On
VU VOLUME
On
Table 2
™
hold & Aux
depressed while
S refers to Service Mode
Display shows the
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 N
VCD Button
pressed?
Y
INITIAL
LEVEL
DISPLAY
Choose level
by pressing 1 VCD VER
N
VCD DSA
Q 2
VCD SLD
3
4 VCD FOC
R
5 VCD RAD
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
Published in Heiloo, Holland.
3-4
DISPLAY MESSAGE
ACTION
OKAY ERROR
VCD Vxx - Where xx is the MPEG software version.
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 ACTION
R
EEPROM TEST A test pattern will be sent to the EEPROM.
"PASS" is displayed if the uProcessor read
back the test pattern correctly, otherwise
9 to Exit "FAIL" will be displayed.
Q
EEPROM FORMAT Load default data. Display shows "NEW"
TEST
for 1 second.
Caution!
All presets from the customer will be lost!!
ROTARY Rotary Volume Knob Display shows value for 2 seconds.
ENCODER TEST or
Values increases or decreases in steps of 1
Jog Shuttle
until 0 (Min.) or 40 (Max.) is reached.
DEMO MODE Pressing this button will toggle between
DSC
DEMO ON and DEMO OFF. The DEMO
status will scroll once across the Display.
Disconnect
LEAVE SERVICE
TESTPROGRAM mains cord
Mini 2001 FW-V720 Service Test Program (dd wk0119)
1/3/16
Various
other Tests