KDC-MP5028/MP528
/W6031/W6031Y
5
COMPONENTS DESCRIPTION
Ref. No.
Application / Function
Operation / Condition / Compatibility
IC11
AMP for 4V Pre-Out Ref.
IC12
Switching regulator IC for CD mecha D5V and FL filament
IC902
AMP for Power IC SVR and E-vol IC 3.3V Ref.
Q1,2
B.U.5V AVR
While BU is applied, BU5V AVR outputs 5V.
Q3,11
SW5V
When Q11’base goes Hi, SW5V outputs 5V.
Q4,906
SW14V
When Q4’base goes Hi, SW14V outputs 14V.
Q5,6
AUDIO8V AVR
When Q6’base goes Hi, A8V AVR outputs 8.3V.
Q7,8
MOTOR+B AVR
When Q8’base goes Hi, M+B AVR outputs 8.3V.
Q9,10
SERVO+B AVR
When Q10’base goes Hi, S+B AVR outputs 7.7V.
Q12
SW for IC12
When Q12’base goes Lo, IC12 is turned on.
Q13
PAN5V
When Q13’base goes Lo, PAN5V outputs 5V.
Q14
4V PRE+B Short Protection
If Q15’Emitter short to GND, between Q14’Base to Emitter more than
0.6V, Q14 ON and Q15 is turned off.
Q15,16
4V PRE+B
When Q15’base goes Hi, 4V PRE+B outputs 12V.
Q17,18
ILL+B SW
When Q17’base goes Hi, ILL+B SW outputs 10.65V.
Q101,102
P-ANT SW
When Q102’base goes Hi, P-ANT SW outputs 14V.
Q103,106
P-CON SW
When Q106’base goes Hi, P-CON SW outputs 14V.
Q104,105
P-CON Protection
Protects Q104 from being triggered erroneously. This is achieved by
turning on output protection when P-CON output grounding is detected.
Q107
Ext Amp Control Buffer
Q108
Small lamp det SW
When Q108’base goes Hi, Q108 is turned on.
Q109,110
Surge det
When Q109’base goes Hi, Q109, Q110 are turned on.
Q111
BU det
When Q111’base goes Hi, Q111 is turned on.
Q112
ACC det
When Q112’base goes Hi, Q112 is turned on.
Q113
Mute driver
When Q113’base goes Lo, mute driver is turned on.
Q114
Mute driver
When Q114’base goes Lo, mute driver is turned on.
Q115,116
Mute driver
When a base goes Lo, mute driver is turned on.
Q300,301
AM+B SW
When Q301’base goes Hi, AM+B is out.
Q304
DSI (Disabled System Indicator)
DSI blinks when Q304’base goes “H/L”
Q400~405
Pre-out mute SW
When a base goes Hi, Pre-out is muted.
Q905
SVR+B AVR
When Q905’base goes Hi, SVR+B AVR outputs 14V.
