Kenwood RXD-501 Service Manual page 15

3. Adjustment of CD player
INPUT
No. ITEM
SETTING
Step 1,2 are in TEST MODE
TEST MODE : While pressing the [PALY/PAUSE] key, plug the AC power cord into the AC outlet.
LASER
–
1
POWER
FOCUS
Test disc
2 ERROR
Type 4
BALANCE
Note:
Type 4disc :SONY YEDS-18 Test Disc or equivalent. (KTD-02)
LPF : Around 47kΩ + 390pF or so.
(a) Laser Power
Pickup
4. Test mode of DECK section
(1) Setting
While pressing the PLAY key(DECK), plug the AC
power cord into an AC power outlet.
(2) Resetting
• Disconnect the AC power cord from an AC power out-
let or press the [ON/STANDBY] key.
(3) Operation in TEST mode
(a) Initial condition
Item
Power
Selector
Main VOL.
EX. bass
FL, LED, LCD
ADJUSTMENT
OUTPUT
SETTING
Set the senor section
of the optical power
meter on the pickup
lens.
Connect an oscillo-
scope as follows.
CH1 : RF(CN7 pin1)
CH2 : FE(CN7 pin6)
GND : VC(CN7 pin4)
0.05~0.15 mW
Optical power meter
Condition
ON
TAPE
-45dB(VOL45)
OFF
All the FLs are turned
on for 10 seconds
RXD-501/551/571/A5/701/751/771/A8
PLAYER ALIGNMENT
SETTING POINT
Press the"PLAY"key
to check that the dis-
play is "03".
Press the "PLAY" FE
key. Confirm that the BALANCE
display is"05" VR1
(d)
RF signal : AC coupled
¶ RF signal in test mode (PLAY).
¶ Perform the tangential and focusing offset are focused
into one point on the display. The crossing points above
and below the center shall also be looked clearly.
(b) 4-sec REC
If the REC key is pushed, the system record for 4sec.
Then, it rewinds to the REC starting position and
plays back automatically.
If the REC key is pushed during the 4-sec REC oper-
ation, the system records further for 4-sec, then
returns to the starting position of the first 4-sec REC
operation and plays back.
(c) Mechanism SW detection
SW
B FWD REC Inhibit SW
B RVS REC Inhibit SW
A Pack SW
B Pack SW
(d) Indication of A/B deck
A/B key
A deck
B deck
ALIGN FOR
On the power
from.0.05 to 0.15mw.
when the diffraction
grating is correctly
–
aligned with the RF
level of 0.8Vp-p or
more
Optimum eye pattern
Display
CD Calendar (1)
CD Calendar (2)
CD Calendar (3)
CD Calendar (4)
Display
ECHO
SLEEP
FIG.
(a)
(d)
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