Philips CDR 785, Service Manual, Page: 31 / 67

5-6 5-6
* To leave Service Testprogram plug mains cord off.
N
Y
ROTARY ENCODER
TEST
JOG CONTROL
turned ccw?
N
Y
KEY TEST
Display shows1)
Numbers acc. table 3
are indicated as long as a
button is held depressed.
If a button is pressed
on the Remote Control
KEY RC
is shown
and the
;
flag flashes.
FFWD
6
button
pressed?
CDR785 servtest, 150200
STOP button
pressed?
N
Y
10
OPEN/CLOSE
(CDR)
FINALIZE
ERASE
CD
y
CD
CDR
AUX
CD3
19
20
21
22
23
24
25
26
27
29
CD2
REW
5
KEY KEY CODE
exit test
2
3
4
5
6
7
8
9
12
15
11
REC TYPE
COMPILE CD 14
13
16
17
CD1
CD TEXT
REPEAT
DISPLAY
SHUFFLE
CD CHANGE
PLAY/PAUSE
OPEN/CLOSE
(CDC)
ON /OFF
18
STOP
TRACK EDIT 1
PROGRAM
TEXT
BALANCE
REC LEVEL
YES
NO
FFWD
6
KEY KEY CODE
KEY CODES
Display shows
version number
of the
µ
P - software.
To enter Service
Testprogram hold
CD
y
CD & NO buttons
depressed while
plugging mainscord in.
On/Off switch in pos. ON
Display shows
for 2s.
N
Y
JOG CONTROL
turned cw?
Display shows
for 2s.
table 2
1) If the ON/OFF switch is in the position
OFF , all other keys
are blocked and display will show 29 all time.
SERVICE TESTPROGRAM
VARIOUS TESTS
stands for Service mode
stands for version number
of the software used in the
front
µ
P.
JOG LEFT
KEY --
JOG RIGHT
DISPLAY button
pressed?
STOP button
pressed?
N
N
Y
Y
Y
N
Display shows all
segments and flags
for checking open circuits.
see figure 1
CD1, CD3, AUX and blue
LEDs are switched on.
Display shows figure 2.
All alternate pins (2, 4, ..)
of the display are activated
for checking shortcircuits.
CD2, CDR, YES and red
LEDs are switched on.
DISPLAY TEST
DISPLAY button
pressed?
fig. 1
fig. 2
N
Y
QUARTZ TEST
Display shows
1465
±
44Hz can be measur.
on (pin 9 of
µ
P).
STOP button
pressed?
N
Y
REW
5
button
pressed?
Tact frequency
µ
P
(divided 12MHz)
1
TEXT TOTAL TRACK TIME TOTAL REM STEP
CDRW CDRW
COMPILE CD TRACK PROG
RECORD IN PROGRESS
SHUFFLE REPEAT ALL EDIT
REC TRACK TIME
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 +
ANALOG
FINALIZE ALC
DIGITAL
OPTICAL 12
12
TOTAL TIME REM
R R
TRACK
2 6
FINALIZE
2
1
12M
S-CDR785-V XX
V XX
S