Pioneer CLD-D503 Service Manual page 11

CLD-D503, CLD-D570
No[Pinname [Function
44 | ADVDD Power pin for A/D converter
Connect to +5V.
45 | ADGND Ground pin for A/D converter
Connect to GND.
46 | RBT A/D converter bottom reference input
Inputs bottom reference voltage of A/D converter.
47 | VIN A/D converter input pin
Inputs composite video signal.
48 | WGND Ground pin for write system
Connect to GND.
49 | WVDD Power pin for write system
Connect to +5V.
50 | XPBCSY Composite synchronization input for playback system
Input composite synchronization at negative logic. (Schmitt trigger input)
DOSP Drop out detection pulse input (Schmitt trigger input)
52 | RF RF signal input
; Inputs RF signal for spindle servo-circuit.
z |
54
Tracking open pulse input (Schmitt trigger input)
Spindle error PFD error output pin
GCONT
ACCNT
Outputs result after performing PFD on PBH and RefH at tri-state.
Gain control output
Outputs PWM signal according to set value (GD0-DG3), using serial instructions.
Accelerated control output
Outputs acceleration/deceleration signal by forced acceleration/deceleration, by error detection by RF,
and by error detection by H synchronization with tri-state.
PWMI
58 | FR
Inputs signals that have voltage compared between spindle errors that passed through a loop filter and
target voltage. (Schmitt trigger input)
59 | TEST Input pin for IC test.
Fixed to "L".
60 | DRVA Transistor control signal output pin for spindle motor drive
This setting is performed by the interface corresponding to the brush motor and brushless motor.
61 | DRVB Transistor control signal output pin for spindle motor drive
62 | RGND
Spindle error direction component input
Spindle error PWM input
Inputs signals that have voltage compared between spindle errors that passed through a loop filter and
This setting is performed by the interface corresponding to the brush motor and brushless motor.
Ground pin for reference system
chopping waves. (Schmitt trigger input)
Connect to GND.
63 | XO Oscillation output
Connects X'tal (4 fsc) for oscillation.
XI Oscillation input
Connects X'tal (4 fsc) for oscillation.