4
KDC-MP6025/MP625/MP858
KDC-W6527/W6527Y
COMPONENTS DESCRIPTION
Ref. No.
Application / Function
Operation / Condition / Compatibility
Q13,15,16
FL&ILL AVR
When Q13’2pin goes Hi, ILL AVR outputs 10.5V.
Q25,26
P-ANT SW
When Q23’base goes Hi, P-ANT SW outputs 14V.
Q27,30
P-CON SW
When Q30’base goes Hi, AVR outputs 14V.
Q28,29
P-CON Protection
Protect Q27 by turning on when P-CON output is grounded.
Q31
Ex Amp Control Buffer
Q32
Small lamp det SW
When Q32’base goes Hi, Q32 is turned on.
Q33,34
SERGE Det.
When Q33’base goes Hi, IC4 is changed into a standby state.
Q35
BU det
When Q35’base gose Hi, Q27 is turned on.
Q36
ACC det
When Q36’base gose Hi, Q29 is turned on.
Q37,38
Pre-out mute driver
When a base gose Lo, mute driver is turned on.
Q39
Sub-out mute driver
When a base gose Lo, mute driver is turned on.
Q40
AC-out mute driver
When a base gose Lo, mute driver is turned on.
Q41,42
AM+B SW
When Q42’base gose Hi, AM+B is out.
Q43
Composite signal buffer for RDS
DSI lights when the base is “L”.
Q44
DSI Driver
DSI turns off when the base is “H”.
DSI turns on and off when panel is taken off.
Q45,46
Panel 5V SW
When Q46’base gose Hi, PANEL 5V is out.
Q47~50
Pre-out mute SW
When a base gose Hi, Pre-out is muted.
Q55
Noise buffer
RDS Noise
Q56,57
AC-out mute SW
When a base gose Hi, AC-out is muted.
Q58,59
Sub-out mute SW
When a base gose Hi, Sub-out is muted.
Q60
Level meter mute SW
When a base gose Hi, Level meter is muted.
