Kenwood KDC-719 Sercie Manual page 4
Cd receiver
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Also See for KDC-719:
- Instruction manual (48 pages) ,
- Instruction manual (40 pages) ,
- Instruction manual (40 pages)
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KDC-719/X559
/Z737,Z638
Ref.No.
Component Name
Q12
DTC124EUA or UN5212
Q13
DTA124EUA or UN5112
Q14
DTA123JK or KRA105S
Q15
DTC144EUA or UN5213
Q16
2SB1443
Q17
2SC4081
Q18
2SA1576A
Q19
2SC4081
Q20
2SA1576A
Q21
2SC4081
Q22
2SC4081
Q23
2SA1576A
Q26
2SB1277(Q,R)
Q29
DTC114YUA or UN5214
Q27
2SA1576A
Q28
DTA124EUA or UN5112
Q30
2SC4081
Q31
2SC4081
Q32
DTA124EUA or UN5112
Q33
DTA124EUA or UN5112
Q34
2SC4081
Q35
DTC124EUA or UN5212
Q36
DTC143TUA or UN5216
Q37
DTC143TUA or UN5216
Q38
DTC143TUA or UN5216
Q39
DTC143TUA or UN5216
Q40
DTC143TUA or UN5216
Q41
DTC143TUA or UN5216
Q42
DTC143TUA or UN5216
Q43
DTC124EUA or UN5212
Q44
CPH3105
Q45
DTC124EUA or UN5212
Q46
CPH3105
Q52
DTC143TUA or UN5216
Q101 DTA114YUA or UN5114
Q103 DTC124EUA or UN5212
Q111 2SB1277(Q,R)
Q112 DTC114YUA or UN5214
Q201 2SC4081
Q305 DTA114YUA or UN5114
Q306 DTA114YUA or UN5114
Q473 2SC4081
Q474 2SB1548(P)
Q475 2SC4081
Q476 2SB1548(P)
4
COMPONENTS DESCRIPTION
Application/Function
FL/Illumination AVR SW
EXT. AMP CON. SW
Dimmer detection SW
A.+10V AVR
PRE-AMP -9V AVR
PRE-AMP +9V AVR
P-CON SW
P-CON. protection SW
P-CON. protection inhibit SW
BU detection SW
ACC detection SW
Mute driver for R Ch.
Mute driver for L Ch.
AGC for spectrum analyser
E. VOL. mute SW
Noise buffer
Audio mute SW (Front L)
Audio mute SW (Front R)
Audio mute SW (Non Fader R) When Q39's base goes Hi, Pre-output is muting.
Audio mute SW (Non Fader L) When Q40's base goes Hi, Pre-output is muting.
Audio mute SW (Rear L)
Audio mute SW (Rear R)
FM+B SW
AM+B SW
Composite signal buffer
DSI LED SW
AUX/CD selector SW
P-ANT SW
BU5V discharge SW
EJECT LED Red SW
EJECT LED Green SW
BU 5V AVR
Voltage conver ter
Operation/Condition/Compatibility
When Q12' base goes Hi, Q13 is turned on, and FL/Illumination AVR is working.
When a base goes Lo, Q14 is turned on, and control pulse signal is outputted.
When vehicle small lamps turn on, Q15's base goes Hi, and it is turned on .
When Q17's base goes Hi, AVR outputs +10V.
Q18 and Q20 work as a differential amplifier, Q19 works as a driver, and
-9.3V is supplied to OP AMP.
Q21and Q22 work as a differential amplifier, Q23 works as a driver, and
+9.7V is supplied to OP AMP.
When Q29's base goes Hi, Q26 is turned on, and P-CON signal is outputted.
Works during POWER ON mode.
Protect Q26 by turning ON when P-CON output is grounded.
Prevents Q27 tuning ON during start-up after power ON.
While BACKUP is applied, a base goes Hi, and Q30 is turned on.
When momentary power down has detected, a base goes Lo, and Q30
is turned off.
While ACC is applied, a base goes Hi, and Q31 is turned on.
When BU detection SW or System RESET or MI-COM.'s MUTE is
working, a base goes Lo, and Q32 and Q33 are turned on.
When BU detection SW or MI-COM.'s mute is working, a base goes Hi,
and Q35 is turned on.
When Q37's base goes Hi, Pre-output is muting.
When Q38's base goes Hi, Pre-output is muting.
When Q41's base goes Hi, Pre-output is muting.
When Q42's base goes Hi, Pre-output is muting.
When Q43's base goes Hi, Q44 is turned on, and A.+8V is supplied to
the F/E. Works during FM reception mode or RDS reception mode.
When Q45's base goes Hi, Q46 is turned on, and A.+8V is supplied to
the F/E. Works during AM reception mode.
When a base goes Lo, Q101 is turned on, and DSI illumination LED is lit.
When a base goes Hi, AUX inputs are selected.
When a base goes Lo, CD inputs are selected.
When Q112's base goes Hi, Q111 is turned on, and P-ANT signal is outputted.
Works during FM/AM reception mode or RDS reception mode.
When BU OFF is detected, Q201 is turned on during the base Hi condition.
When a base goes Lo, Q305 is turned on, and EJECT illumination LED is lit.
When a base goes Lo, Q306 is turned on, and EJECT illumination LED is lit.
While BACKUP is applied, AVR outputs +5V.
Q473 and Q474 are inverted Darlington connection.
Q475 and Q476 work as voltage coverter for BU 5V AVR, and it output +9V.
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