Kenwood KDC-C719/C719Y Service Manual page 5

MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
85 SP/LO-
86 ELV+
87 ELV-
88 SIM1
89 SEARCH
90 TEST1
91 TEST2
92 8V/7V
93 EEPWR
94 TEST/VPP
95 SRVSEL
96 SLNSA
97 SDA
98 SCL
99 PON
100 ARMSW
L.P.S. initial position adjustment procedure
1. Connect the changer to the HEAD UNIT (H/U).
2. While holding the magazine eject button of the changer,
press the reset button of the H/U.
3. After about 3 seconds, release the magazine eject button.
4. Press the SRC button of the H/U to enter the CD-CH mode,
and the H/U's display section indicates "E-88".
5. Move the mechanism deck to around the 1st stage by press-
ing the DISC- or DISC+ button.
6. Insert the adjustment tool (W05-0635-00) into the tool hole
on the changer mechanism.
7. Then press the DISC+ button to move the mechanism deck
until the mechanism's slider hits the adjustment tool.
8. When the motor locks (stops), press the REPEAT key of
the H/U.
When the REPEAT key is pressed, the mechanism moves
automatically to the 1st stage and the initial position adjust-
ment completes. (The data is written in the EEPROM at
this time.)
I/O
O Spindle/loading control terminal -
O MD up/down control terminal +
O MD up/down control terminal -
I Standard stack CH destination port
O Search/play switching port
I Mechanism duration mode
I Mechanism duration mode
O Driver IC for mechanism operation power supply voltage control
I EEPROM writing mode
I Flash ROM program mode
I Servo operation mode (no mechanism operation)
I Sled blind zone ON/OFF terminal
I/O EEPROM data input/output
O EEPROM clock output
O PON output
I Arm switch
ADJUSTMENT
Application
W05-0635-00
Caution : Note on IC8 (EEPROM)
Be sure to use the W05-1306-00 when replacing the
EEPROM. IC8 stores the digital servo data of the pickup
servo.
Therefore, if the EEPROM does not store servo data, ER-
ROR76 (E-76) will indicate the H/U's display section at the
moment CD is played.
KDC-C719/C719Y
KDC-C719/G4
5