Kenwood CS-434-HC, CS-434-HU Service manual

CD PLAYER

CS-434HU/HC

SERVICE MANUAL

HONDA GENUINE ACCESSORIES

CD mechanism information is not in this service manual. Please, refer to service manual X92-4590-03 (B51-7933-00).

Panel assy (A64-2766-02)

MODEL PARTS No. DESTINATION CS-434HU 08A06-4E1-2000 U.S.A. (HONDA) CS-434HC 08A06-4E3-2000 CANADA (HONDA)

Head unit connection code for servicing E30-4238-05

Knob (EJECT) (K24-3960-02)

Screw set (N99-1621-15)

CS-434HU/HC

BLOCK DIAGRAM

GA-NET2

J1,2

(on B/3)

BU 14V

SYSTEM

ACC

BUS+

BUS-

ILL CONT

Lch+

Lch-

Rch+

Rch-

SHIELD

GND

CD: 2.0V (BALANCE OUTPUT)

BU 5V SRV +B AUDIO +B CD 4.7V

ILL

(X25-9460-10) (A/3)

Rch-

Rch+

AUDIO+B

AUDIO+B 1/2VCC

Q201,Q202

RESET

BU DET

(X92-4590-03) CD MECHA. (DXM-6513W)

IC21

CD: 1.2V

ANALOG

Rch+

Rch-

UNBALANCE

BALANCE

Rch

MUTE

Rch

12EJE SW

LOE/LIM SW

Lch-

LOS SW

8EJE SW

MUTE

LO/EJ

MOTOR

DATA

CLK

M STOP

M RST

IC30

GA-NET

BUS I/F

BUS-

BUS+

STBY

Lch+

IC22

Lch+

Lch

IC1

AUDIO MUTE

CD DATA 12EJE SW LOS SW 8EJE SW LOE/LIM SW

CD LO/EJ CD MOTOR CD DATA CD CLK CD STOP CD RST

EJECT

SYS ON

LAMP AMBER

DIN

DOUT

BUS DI

BUS DO

SYSTEM u-COM

ILL A

ILL +B

BU 5V

WHITE ONON

LAMP WHITE

KEY

EJECT

BU 5V

ILL W

ILL +B

BU DET

SYS ACC

PON (A) PON (D) SRV ON

CD4.7V ON

LED-ON

INDICATORLAMP ON

BLUE LED

(X25- ) (C/3)

RST

ILL

12.58MHz

BU 5V

ILL

SYS ACC

BU DET

BU 5V

PON (D)

PON 5V

PON (A)

AUDIO +B

1/2VCC

AUDIO Vref BUFFER

CD4.7V ON

CD 4.7V

SRV ON

SRV +B

ILL +B

Q501

ILL DET (on B/3)

Q151

SYS ACC

Q101

BU DET

PON (D) SW AVR

IC3

CD 4.7V REG

Q104

SRV AVR

Q107,109

ILL AVR

Q115 ILL

IC2

ILL CONT

RESET

BU 5V

Q102,103

BU5V

PON (A) AVR

Q141,142

LAND

COMPONENTS DESCRIPTION

Ref.No Element/Function Operation/Condition

IC1 Systemtem u-com Systemtem control IC2 Hard reset BU5V voltage detection IC3 Switching regulator Power supply for CD4.7V

IC21 OP amplifier

IC22 Analog SW IC30 BUS I/F BUS Interface

Q2 PON(D) control

Q4 Disk indicator control

Q6 IC22 control

Q101 BU detection

Q102 BU5V AVR BU5V AVR Q103 BU5V AVR BU5V AVR Q104 SERVO +B AVR SERVO +B AVR Q105 SERVO +B AVR control Outputs by ON.

Lch&Rch unbalance/ balance conversion Audio input/output switching

Digital system 5V power supply PON (D) outputs by ON Switch on a LED light by ON An audio output is not carried out by ON. At the time of the detection by ON

Ref.No Element/Function Operation/Condition

Q106 IC3 control Switching-stops by ON. Q107 AVR for illumi AVR for illumi Q108 Illumi control

Iuminosity-adjusts by the pulse. Q109 AVR for illumi AVR for illumi Q110 Power supply for amber Power supply for amber Q111 Power supply for white Power supply for white Q112 Q113 Q114

Illumi switching control (amber) Illumi switching control (white) Dimmer control for indicators

Switching by ON

Dimmer by ON Q115 AVR control for illumi Output by ON Q141 PON(A) AVR Q142 PON(A) AVR

Analog system 8V PON(A) AVR

Analog system 8V PON(A) AVR Q143 PON(A) AVR control Output by ON Q151 System ACC System ACC:ON by ON Q201 audio line mute Lch mute ON by ON Q202 audio line mute Rch mute ON by ON Q203 Q201 aud Q202 control Mute ON b y ON Q501 Small detection Detection by ON

CS-434HU/HC

MICROCOMPUTER’S TERMINAL DESCRIPTION

● Microcomputer : uPD703034AYGF-M01-3BA (IC1 : X25)

Pin Pin name I/O Description Processing Operation

CD4.7V ON “L”

1 CD4.7V O SW for CD4.7V CD4.7V OFF “H”

CD mechanism starting “L” 2 NC O Not used 3 CD DATA I/O CD data For CD mechanism communication

Motor ON “H” 4 CD MOTOR O SW for CD motor driver Motor OFF “L”

Motor operation “H” 5 CD CLK O CD clock For CD mechanism communication

6~8 NC O Not used

9 EVDD - 5V potential

10 EVSS - GND potential 11 NC O Not used

Usual “H”

12 CD STOP O CD stop Stop “L”

CD mechanism starting “H”

Usual “H”

13 CD RST O CD reset Reset “L”

Always “H”

Completion of ejection “H”

14 12EJE SW I CD S2 12cm DISC “L”

8cm DISC “H”

15~17 NC O Not used

Load Start “L”

18 LOS SW I CD S1 With no DISC “H”

Those with DISC “L”

19 8EJE SW I CD S4 Completion of ejection “H” 20 LOE/LIM SW I CD S3 DISC chucking “H” 21 IC/Vpp - Write-in voltage

Usual Hi-Z

22 CD LO/EJ I/O CD loading / ejection control Eject “H”

Loading “L”

23 CD MUTE I CD mute request

24,25 NC O Not used

26 BUS DI I IEBUS data input Completion of GA-NET 27 BUS DO O IEBUS data output Completion of GA-NET

28 ILL W O Illumi Control WHITE Illumi OFF “L”

29 ILL A O Illumi Control AMBER Illumi OFF “L”

30 LED IND O CD indicator control

Mute ON “L”

Mute OFF “H”

Illumi ON “H” (AMBER “L”)

When it cannot decode, it blinks by 2Hz.

Illumi ON “H”(WHITE “L”)

When it cannot decode, it blinks by 2Hz.

Indicator ON “H”

CD loading~CD chucking~CD eject “H”

+ 7 hidden pages