KDC-9026R/PSW9527
KDC-W9027/X979
5
Ref No. Application / Functions Operation / Condition / Compatibility
IC15,16 Motor driver Control for Panel mechanism motor
IC18 P-CON IC Power control IC
IC19 Power supply IC Switching regulator IC for CD4.7V
IC20 Analog SW Logic IC for muting control
Q1,2 BU 5V AVR While BU is applied when BU5V regulator output is +5V
Q3,601 SW5V AVR When Q601base level goes H, SW5V regulator output is +5V
Q4,5 SW14V AVR When Q5 base level goes H, SW14V regulator output is +14V
Q6~8 Audio 8V AVR When Q6 base level goes H, A8V regulator output is +8.3V
Q9,602 Servo +B AVR When Q602 base level goes H, S+B regulator output is +7.5V
Q11~14 Illumination & DC/DC +B AVR When Q11 base level goes H, AVR output is +9.2V
Q15,16 Audio 10.5V AVR When Q16 base level goes H, AVR output is +10.5V
Q17~19 Pre Amp & -9V AVR Q18, 19 work as differential amplifier, Q17 wark as driver and -9.1V is supplied to OP
AMP for Pre-out
Q20~22 Pre Amp & +9V AVR Q20, 22 work as differential amplifier, Q21 wark as driver and +9.4V is supplied to OP
AMP for Pre-out
Q23,24 P-ANT SW When Q23 base level goes H, P-ANT SW output is +14V
Q25 Buffer EX amp control buffer
Q26 Small lamp det. SW When Q26 base level goes H, Q26 turned ON
Q27 BU detector When Q27 base level goes H, Q27 turned ON
Q29 ACC detector When Q29 base level goes H, Q29 turned ON
Q30,31 Muting driver When base level goes L, muting driver is turned ON
Q32,33 Surge DET. When Q32 base level goes H, Q32, 33 are turned ON
Q34 Muting driver When Q34 base level goes L, muting driver is turned ON
Q201 Buffer Noise detect buffer amp
Q202 E-VOL muting SW When Q202 base level goes H, muting SW is turned ON
Q203~208 Pre-out muting SW When base level goes H, Pre-output is muted
Q210 AGC For AGC for spectrum analyzer
Q303,304 AM +B SW When Q303 base level goes H, AM +B is out to tuner unit
●ELECTRIC UNIT (X34-3060-10, X34-3062-71)
Ref No. Application / Functions Operation / Condition / Compatibility
IC1 OP AMP Buffer amp for ADC input (DSP Lch)
IC2 OP AMP Buffer amp for ADC input (DSP Rch)
IC3 OP AMP LPF for DAC output (DSP Front)
IC4 OP AMP LPF for DAC output (DSP Rear)
IC5 OP AMP LPF for DAC output (DSP Sub & Center)
IC6 OP AMP Sub output amp
IC7 Analog SW Bus management SW (Dolby prologic II)
IC8 OP AMP Bus management accumulator (Dolby prologic II)
IC9 OP AMP Reference AVR
IC10 DSP Audio DSP (24bit 2ch ADC & 6ch DAC)
IC11 SRAM For DSP
IC12 Buffer IC Level shift buffer IC(5V→3.3V)
IC13 AVR D 3.3V AVR (For DSP)
IC14 AVR A 3.3V AVR (For DSP)
Q1 AVR 3.3V regulator
Q2 AVR 3.3V regulator
COMPONENTS DESCRIPTION
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
