Kenwood KDC-X959, Руководство по обслуживанию

Страница: 3 / 26

KDC-X959/Z939,Z738,Z838W
3
●
SWITCH UNIT (X16-169X-XX)
Ref.No. Component Name Application/Function Operation/Condition/Compatibility
IC1 SI-3033LSA-TL 3.3V AVR +3.3V Output
IC2 TC74HC4050AFT Buffer 5V
→
3.3V logic level shifting
IC3 RS-171 Remote sensor IC
IC4 BA3830F BPF IC BPF for the spectrum analyser indicator
IC5 M25P20 Flush ROM For custom display data of the indicator
IC6 MX23L3213TI109 ROM For display data of the indicator
IC7 IS61LV641615TI SRAM For display data of the indicator
IC8 703107AGJ121 Panel MI-COM.
IC9 TC7WT126FU Buffer 3V
→
5V logic level shifting
IC10 TC7SH08F
WE/WR control signal
AND gate
generation
Q4 DTC123JUA Key illumination Red SW When a base goes Lo, Q4 is turned on, and key illumination Red is lit.
Q5 DTC123JUA Key illumination Green SW When a base goes Lo, Q5 is turned on, and key illumination Green is lit.
Q6 CPH3105
OEL+B SW
When Q8's base goes Hi, Q6 is turned on, and OEL 16V power line is
Q8 DTC114EUA or UN5111 supplied to OEL module.
Q9 DTC123JUA Key illumination Blue SW When a base goes Lo, Q9 is turned on, and key illumination Blue is lit.
COMPONENT DESCRIPTION
●
ELECTRIC UNIT (X25-927X-XX)
Ref.No. Component Name Application/Function Operation/Condition/Compatibility
IC1 UPD703033GFA14 System MI-COM. For KDC-X959/Z939, Z838W
IC1 UPD703033GFA15 System MI-COM. For Z738
IC2 TDA7407 E-VOL. & N.C. MPX
IC3 M5237ML AVR IC IC is combined with Q4, and it works as the error detection, the Q4's driver.
IC4 TDA7560 Power IC
IC5 TDA7401
High pass filter &
HPF(Front/Rear output), LPF, Non-Fader switching and volume function
Non-Fader volume
IC6 ICL7660SIBA -9V AVR DC/DC converter, -9V output for pre-output amplifier
IC7 TC74HC02AF Mute logic 2-input NOR x 4
IC8 NJM4565M-TE2 Op. amp. Amplifier for the spectrum analyser and generation of Vref.(1/2Vcc) voltage
IC10 NJM4565M-TE2 Op. amp. Amplifier for the front pre-outputs
IC11 NJM4565M-TE2 Op. amp. Amplifier for the non-fader pre-outputs
IC12 NJM4565M-TE2 Op. amp. Amplifier for the rear pre-outputs
IC14 TDA7479D RDS decoder
IC16 S-80837ANNP Reset IC When BU 5V voltage is less than 3.7V, IC outputs Lo.
IC20 BA3121F Isolation amplifier AUX inputs isolation amplifier
IC21 BA3129F Switched op.amp. Input switching with AUX inputs and CD inputs
IC23 SI-8033JD MECHA. AVR DC/DC converter, +5V output for CD mechanism adapted for MP3/WMA
IC24 LT1930A OEL AVR DC/DC converter, +16V output for OEL module
IC25 BR24C02F-W EEPROM
Q1 2SD2375 CD servo AVR AVR for CD mechanism servo operation, +7.5V output.
Q3 2SA1037K SW 5V
While a base goes Lo, SW 5V is supplied to the microprocessor
peripheral circuits.
Q4 2SA2057 A.+8V AVR Q4 is combined with IC3, and it works as the power supply of +8.0V output.
Q5 DTC144EUA or UN5213
A.+8V AVR SW When Q5's base goes Hi, Q6 is turned on, and A.+8V AVR is working.
Q6 DTA124EUA or UN5112
Q7 DTA124EUA or UN5112
SW14V
When Q8's base goes Hi, Q7 is turned on, and A.+8V AVR, CD servo
Q8 DTC124EUA or UN5212 AVR and A.+10V AVR are working.
Q9 2SB1427 PAN5V SW
For PAN5V on/off switching. When a base goes Lo with panel attached
to the set, Q9 is turned on, and PAN5V is supplied to the panel.
Q10 2SA2057
OEL/Illumination AVR When Q11's base goes Hi, AVR o9V.
Q11 2SC4081
Q12 DTC124EUA or UN5212
OEL/Illumination AVR SW
When Q12's base goes Hi, Q13 is turned on, and OEL/Illumination AVR
Q13 DTA124EUA or UN5112 is working.
Q14 DTA123JK or KRA105S EXT. AMP CON. SW When a base goes Lo, Q14 is turned on, and control pulse signal is outputted.
Q15 DTC144EUA or UN5213 Dimmer detection SW When vehicle small lamps turn on, Q15's base goes Hi, and it is turned on.
www. xiaoyu163. com
QQ 376315150
9 9
2
8 9
4 2
9 8
TEL 13942296513 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