Kenwood CS 434 HC Service Manual
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Extracted text from Kenwood CS 434 HC Service Manual (Ocr-read)
Page 2
CS-434HU/HC
(X2579460-10) (A/3)
BLOCK DIAGRAM
BU 14V
SVSTEM I
ACC
ILL I
BUS+ I
GAVNETZ BUS'
J12 ILL CONT I
(on 8/3) Lch+ Icsu 05m
Rich"; 9% GAVNPT I ILL DETI- I
Rm. mm >BUEI F Bu 5v (on 5/3) I
sHIELD E gé QISI I
GND 1 svsAcc _
CD 2 W 0101 I
saw I E I E a B _U ET I
I m K A Icr £I Bu 5v 7 l
AuDlOIE ANALOG I022 Z 85 PON ID)
I -I 5W I'- 333: g g§ 55:2: - 02 aromas I
I t A cD um ILL PON 5V PON (D) I
I E E § § 12553sz PON IA) Forum I
I wag? UNEALANCE fngEfiIANSW 2:33)») 4-\ PON W I
I -.% BALXNCE EB Ir%%a cm NO): _- AUDIO IE I
I g E EE Egg SYSTEM IrCOM X2 rrzvcc 77 I I
I QZOI 0202 K J CD RSI HST AUDIO VreI BUFFER I
Z CD5 7V ON
I :55; 3 I
| m 5 r m .. cm I
___ _ ___ :I ;I WON
_ _ _ _ _ _ _ _ om I
I E' E I EfiIéZR @AM?E glIEIICATDR ELI 5V SRV +8 I
N
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_ __ _ _ __ _ _ _ ILL +8 ILL AVR
:5: toaiIruzwlh- _ _ _ _ _ _ :I I
I (2459003) MP LAMP ELuE LED -I I ILLCON I
AUDIO 5 CD MEcHA. IC
cnuv (DXM75513W) We? WWI Ifll I | I
| $12 | a LAND I
mop | 3
I_____M:| _______LXZS_IESJI_ _______ L _____ _l
Ref.No Element/Function Operation/Condition FIef.No Element/Function Operation/Condition
|C1 Systemtem u-com Systemtem control 0106 |C3 control Switching-stops by ON.
|C2 Hard reset BU5V voltage detection 0107 AVR for illumi AVR for illumi
ICS Switching regulator Power supply for CD4.7V 0108 lllumi control luminosIty-adjusts by the pulse.
|C21 OP l'f' Lch&Flch unbalance/ 0109 AVR for illumi AVR for illumi
am I Ier
p balance conversion 0110 Power supply for amber Power supply for amber
|C22 Analog SW Audio input/output switching 0111 Power supply for white Power supply for white
l030 BUS l/F BUS Interface 0112 lllumi sWItching control (amber) Switching by ON
02 PON(D) t l DIgital system 5V power supply 0113 lllumi swnching control (thte) Switching by ON
con ro
PON D out uts b ON 0114 DImmer control for indicators Dimmer by ON
P Y
04 Disk indicator control Switch on a LED light by ON 0115 AVR control lor illumi Output by ON
06 |C22 t | An audio output is not 0141 PON(A) AVR Analog system 8V PONIA) AVR
con ro
carried out by ON. 0142 PON(A) AVFI Analog system 8V PONIA) AVR
0101 BU d t t' At the time of the detection 0143 PON(A) AVFt control Output by ON
e ec Ion
by ON 0151 System ACC System ACC:ON by ON
0102 BU5V AVFI BU5V AVFI 0201 audio line mute Lch mute ON b ON
y
0103 BU5V AVFI BU5V AVR 0202 audio line mute Rch mute ON by ON
0104 SERVO +B AVFI SERVO +B AVR 0203 0201 aud 0202 control Mute ON by ON
0105 SEFIVO +B AVFI control Outputs by ON. 0501 Small detection Detection by ON
Page 3
O Microcomputer : uPD703034AYGF-M01-3BA (IC1 : X25)
CS-434HU/HC
MICROCOMPUTERS TERMINAL DESCRIPTION
Pin Pin name l/O Description Processing Operation
CD4.7V ON L"
1 CD4.7V 0 SW for CD4.7V CD4.7V OFF H"
CD mechanism starting L"
NC 0 Not used
CD DATA l/O CD data For CD mechanism communication
Motor ON H"
4 CD MOTOR 0 SW for CD motor driver Motor OFF L"
Motor operation H"
5 CD CLK 0 CD clock For CD mechanism communication
6~8 NC 0 Not used
9 EVDD - 5V potential
10 EVSS - GND potential
11 NC 0 Not used
Usual H"
12 CD STOP 0 CD stop Stop L"
CD mechanism starting H"
Usual H"
13 CD FIST 0 CD reset Reset I."
Always H"
Completion of ejection H"
14 12EJE SW I CD S2 12cm DISC L"
80m DISC H"
15~17 NC 0 Not used
Load Start L"
18 L08 SW l CD S1 With no DISC H"
Those with DISC L"
19 8EJE SW l CD S4 Completion of ejection H"
20 LOE/LIM SW I CD SS DISC chucking H
21 lC/Vpp - Write-in voltage
Usual Hi-Z
22 CD LO/EJ l/O CD loading / ejection control Eject H"
Loading L"
23 CD MUTE l CD mute request Mute ON L"
Mute OFF H"
2425 NC 0 Not used
26 BUS DI | IEBUS data input Completion of GA-NET
27 BUS DO 0 IEBUS data output Completion of GA-NET
Illumi ON H" (AMBER L")
28 ILL W O Illumi Control WHITE Illumi OFF L"
When it cannot decode, it blinks by 2H2.
Illumi ON H"(WHITE L")
29 ILL A O Illumi Control AMBER Illumi OFF L"
When it cannot decode, it blinks by 2H2.
30 LED IND 0 CD indicator control Indicator ON H"
CD loading~CD chucking~CD eject H"