Service Test Program - Philips FW-C798/21/37 Service Manual

SERVICE TEST PROGRAM

TUNER QUARTZ
TEST
TEST
N
TUNER
Button pressed? Button pressed?
Y
Display Tuner Version
Display shows
"ccc"
Output at (Front Display Board)
pin 19 of uP = 2048Hz
N
TUNER
Button pressed?
Button pressed?
Service frequencies are
copied to the RAM (see Table 1)
Tuner works normally except:
Display shows
PROGRAM button
Output at (Front Display Board)
pin 19 of uP = 2,929.6875Hz
N
Disconnect
Mains cord ?
Button pressed?
Y
Service Mode left
Europe East Eur. East Eur. Extended-band
"EAS"
PRESET "EUR" "EAS"
65.81MHz
1 87.5MHz 87.5MHz
108MHz
2 108MHz 108MHz
74MHz
3 531kHz 531kHz
87.5MHz
4 1602kHz 1602kHz
531kHz
5 558kHz 558kHz
6 1494kHz 1494kHz 1602kHz
7 153kHz 87.5MHz 558kHz
8 279kHz 87.5MHz 1494kHz
9 198kHz 87.5MHz 98MHz
10 98MHz 87.5MHz 70.01MHz
11 87.5MHz 98MHz 65.81MHz
Table 1
Note: * Depending on the selected grid frequency (9 or 10kHz)
By holding the TUNER and R buttons depressed while switching on the Mains supply, one
of the undermentioned features will be activated:
- the tuning grid frequency is toggled between 9kHz and 10kHz for the Oversea (/21) version.
- the extended FM1 (65.81MHz - 74MHz) is toggled on and off for East Eur. (/34) version.
3-1
To start service test program
hold
depressed while
plugging in the mains cord
Display shows the
ROM version
"S-Vyy"
(Main menu)
SERVICE
PLAY MODE
N
O
STANDBY-ON
Button pressed?
Y
Y
Set is in Service PLAY Mode.
32K
In case of failures, error
codes according to Table 2
will be displayed.
The Service Play Mode is intended to
detect and identify the failures in the CD Mode.
O N
In this mode the electronics will still function
even when an error is detected so that
repair activities can be carried out.
Y
12M
9
N
Error code Error Description
Y
E1000 Focus Error
Triggered when the focus could not be found within a certain time when starting up the CD
or when the focus is lost for a certain time during play.
E1001 Radial Error
Triggered when the radial servo is off-track for a certain time during play.
E1002 Sledge In Error
The sledge did not reach its inner position (inner-switch is still close) before approximately
6 Sec. have passed by. Inner-switch or sledge motor problem.
USA Oversea
E1003 Sledge Out Error
"USA"
"OSE"
The sledge did not come out of its inner position (inner-switch is still open) before approximately
250 mSec. have passed by. Inner-switch or sledge motor problem.
87.5MHz
87.5MHz
E1005 Jump-offtrack error
108MHz
108MHz
Triggered in normal play when the jump destination could not be found within a certain time.
When this error occurred, software will try to recover by initiating the jump command again.
530kHz
531/530kHz*
If it is recoverable, the disc will continue to play.
1700kHz 1602/1700kHz*
E1006 Subcode Error
Triggered when a new subcode was missing for a certain time during play.
560kHz 558/560kHz*
1500kHz 1494/1500kHz* PLL Error
E1007
The Phase Lock Loop could not lock within a certain time.
98MHz 87.5/98MHz*
E1008 Turntable Motor Error
87.5MHz 87.5MHz
Generated when the CD could not reached 75% of speed during startup within a certain time.
Discmotor problem.
87.5MHz 87.5MHz
E1020 Focus Search Error
87.5MHz 87.5MHz
The focus point has not been found within a certain time.
87.5MHz 98/87.5MHz*
E1070 The carousel switch is not open within certain time. This can happen when either the switch is
defective and closed all the time, or when the carousel is blocked when located exactly at a
disc position.
E1071 The carousel position switch did not close within a certain time. This can happen when the
switch is defective and never closes electrically, or when the carousel is blocked in between
two disc positions. The time-out is approximately 5 Sec.
E1079 The drawer could not enter the inside position is opening again. This can be caused because
the drawer is blocked by something and cannot go fully inside, or the drawer switch is defective
and does not close.
™
& Aux
S refers to Service Mode
V refers to Version
yy refers to Software version number of the uProcessor
(counting up from 01 to 99)
N
Figure 1
Figure 2
Table 2
3-1
DISPLAY
TEST
N
2
Button pressed?
Y
Display shows Figure 1 and
switch all LEDs on (except ECO
POWER & **VU Volume LEDs),
and full VU deflection.
N
2
Button pressed?
Y
Display shows Figure 2
and switch alternate LEDs on
(see Table 3),
and partial VU deflection.
N
9
Button pressed?
Y
LEDs FW-C500 , FW-C550 FW-C700 , FW-C720 FW-P750
FW-C555 FW-C780 , FW-C785
FW-C788 , FW-C798
DISC 1 On On On
DISC 3 On On On
TAPE On On On
TUNER
On On On
CENTRE On
SURROUND LEFT On
STEREO RIGHT
On
VAC On On On
DBB On On
VU BACK LIGHT On On On
**VU VOLUME On On On
** Only applicable for set with VU Volume LED.
Table 3
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
9 to Exit
test pattern correctly, otherwise "FAIL" will be displayed.
Q
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 and
DEMO TOGGLE DSC
DEMO OFF. The DEMO status will scroll once across
the Display.
ROTARY Rotary Volume Knob Display shows value for 2 seconds.
ENCODER TEST or
Values increases or decreases in steps of 1 until 0 (Min.)
Jog Shuttle Knob
or 40 (Max.) is reached.
Disconnect
LEAVE SERVICE
TESTPROGRAM mains cord
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