SECTION 3
TEST MODE
MC COLD RESETCHANGE-OVER OF AM TUNER STEP BETWEEN 9 kHz
Y The cold reset clears all data including preset data stored in theAND 10 kHz
RAM to initial conditions. Execute this mode when returningY A step of AM channels can be changed over between 9 kHz and
the set to the customer.10 kHz.
Procedure:Procedure:
1. Press three buttons GROOVE , ENTER/NEXT , and1. Press1/u button to turn the set ON.
DISC 1 simultaneously.2. Select the function OTUNER�, and press TUNER/BAND
2. The fluorescent indicator tube becomes blank instantaneouslybutton to select the BAND OAM�.,
and the set is reset.3. Press1/u button to turn the set OFF.
4. Press ENTER/NEXT and1/u buttons simultaneously, and
CD DELIVERY MODEthe display of fluorescent indicator tube changes to OAM 9 k
Y This mode moves the pick-up to the position durable to vibration.STEP� or OAM 10 k STEP�, and thus the channel step is changed
Use this mode when returning the set to the customer after repairover..
Procedure:Be sure not to change with carelessness.
1. Press1/u button to turn the set ON.
2. Press PLAY MODE button and1/u button simultaneouslyLED AND FLUORESCENT INDICA.TOR TUBE ALL LIT, KEY
3. A message OLOCK� is displayed on the fluorescent indicatorCHECK MODE
tube, and the CD delivery mode is set.Procedure:
1. Press three buttons GROOVE , ENTER/NEXT , and
MC HOT RESETDISC 3 simultaneously.
Y This mode resets the set with the preset data kept stored in the2. LEDs and fluorescent indicator tube are all turned on.
memory. The hot reset mode functions same as if the powerPress DISC 2 button, and the key check mode is activated.
cord is plugged in and out.3. In the key check mode, the fluorescent indicator tube displays
Procedure:OK 1 J0 V0�. Each time a button is pressed, OK�value increases.
1. Press three buttons GROOVE , ENTER/NEXT , andHowever, once a button is pressed, it is no longer taken into
DISC 2 simultaneously.account.
2. The fluorescent indicator tube becomes blank instantaneouslyOJ� value increases like 1, 2, 3 ... if rotating,JOG dial knob in
and the set is reset.Oclock wise� direction, or it decreases like 0, 9, 8 ... if rotating
in Ocounter clock wise� direction.
SLED SERVO MODEOV� value increases like 1, 2, 3 ... if rotating VOLUME knob
Y This mode can run the CD sled motor freely. Use this mode, forin O+� direction, or it decreases like 0, 9, 8 ... if rotating in O��
instance, when cleaning the pick-up.direction.
Procedure:4. To exit from this mode, press three buttons in the same manner
1. Select the function OCD�.as step 1, or disconnect the power cord.
2. Press three buttons GROOVE , ENTER/NEXT , and
CD FLASH simultaneously.SELF-DIAGNOSIS
3. The Sled Servo mode is selected, if OCD� is blinking on theThis model has the self-diagnosis function for the video and audio
fluorescent indicator tube.decoder sections.
4. With the CD in stop status, press) button in CD section toImmediately after the power on, the self-diagnosis function searches
move the pick-up to outside track, or0 button to inside track.each operation of ICOs around the mechanism controller (IC701).
5. To exit from this mode, perform as follows:The LED (D701) on the VIDEO board indicates their results.
1) Move the pick-up to the most inside track.
2) Press three buttons in the same manner as step 2.LED (D701) INDICATIONSYMPTOM
Note:LightNo error
Y Always move the pick-up to most inside track when exiting1 time blinking (Repeatedly)External RAM (S-RAM) error
from this mode. Otherwise, a disc will not be unloaded. (IC751)
Y Do not run the sled motor excessively, otherwise the gear can2 times blinking (Repeatedly)Video decoder section error
be chipped.(IC201)
3 times blinking (Repeatedly)Video RAM (D-RAM) error
(IC251)
4 times blinking (Repeatedly)Audio decoder section error
(IC201)
[VIDEO BOARD] (SIDE-A)
IC701
IC201
D701
IC771IC901
N 15 N |
ACEC
SONY
