Kenwood KDC-1032, KDC-132-CR, KDC-133, KDC-233, KDC-234-SGY Service manual

CD RECEIVER

KDC-1032
KDC-132/CR
KDC-133/233
KDC-234SGY

SERVICE MANUAL

© 2005-9 PRINTED IN JAPAN
B53-0326-00 (N) 1699

Panel assy
KDC-1032 (A64-3771-02)

VOL

AUD

SET UP

CRSC

FF

SCAN RDM REP

Panel assy
KDC-132CR (A64-3854-02)

VOL

AUD

SET UP

FF

CRSC

SCAN RDM REP

Panel assy
KDC-233 (A64-3775-02)

VOL

AUD

SET UP

FF

CRSC

SCAN RDM REP

Panel assy
KDC-132 (A64-3770-02)

VOL

/

AUTO

AME

AUD

SET UP

FF

CRSC

SCAN RDM REP

/

AUTO

AME

Panel assy
KDC-133 (A64-3774-02)

VOL

/

AUTO

AME

AUD

SET UP

FF

CRSC

SCAN RDM REP

/

AUTO

AME

Panel assy
KDC-234SGY (A64-3773-02)

VOL

/

AUTO

AME

AUD

SET UP

FF

MONO

SCAN RDM REP

/

AUTO

AME

* Escutcheon
(B07-xxxx-xx)

Mounting hardware assy
(J21-9716-03)

* Carrying case
(W01-1661-05)

* DC cord
(E30-6415-15)

* Depends on the model. Refer to the parts list.

SPARE TDF PANEL

MAIN UNIT NAME TDF PARTS No. TDF NAME

KDC-1032 Y33-2390-60 TDF-61DB
KDC-132 Y33-2390-61 TDF-61D
KDC-132CR Y33-2390-62 TDF-61DCR
KDC-133 Y33-2390-64 TDF-133
KDC-233 Y33-2390-63 TDF-233
KDC-234SGY Y33-2390-67 TDF-234SG

* DC cord
(E30-6427-05)

* Screw (4x16)
(N84-4016-48)

Lever
(D10-4589-04) x2

* Screw set
(N99-1757-05)

* Antenna adaptor
(T90-0523-05)

This product uses Lead Free solder.

KDC-1032/132/132CR
KDC-133/233/234SGY

BLOCK DIAGRAM

ANT

DME1

CD
MECHA

(X34- )

J1

AUDIO

OUT

(X16- )

ED1

S2

VOL

Q501

AM AGC

AM+B

SERVO
A8V
BU5V

800mV

LCD

L506

FM AGC

IC6

RDS
DECODER

IC10

MPX OUT
MPX IN

IC12

E2PROM

PAN5V

IC1

LCD DRIVER
WITH
KEY MATRIX

TUNER,
MPX &
E-VOL.

IC1

IC11

RST IC

SYSTEM
u-COM

REMOTE

KEY ILLUMI

IC2

A8V

BU5V

Q101

DSI

Q223,224

PRE OUT
MUTE

IC8

MUTE LOGIC

BU5V

PAN5V

SERVO

Q102

PAN5V

Q55

SERVO

Q101

Q70

SURGE DET

Q10

BU DET

Q20

ACC DET

D30,C30,R30

TEL MUTE

SW5V
AM+B

BU5V

DSI ILLUMI +B

FM(J,K) : 1800mV
AM(J,K)

AM(E)
CDCH: 3600mV

IC4

POWER
IC

A8V

: 1372mVFM(E)
: 600mV
: 855mV

: 3600mV

IC7

J2

PRE OUT

SP OUT

BACK UP

ACC

TEL MUTE
P-ANT
P-CON

POWER
SUPPLY IC

P-CON
P-ANT

SW5V
AM+B
AUDIO+B
VCC
BU5V
ILLUMI

MECHA ASSY (X92-)

PICK-UP (DPU1)

A

EF

C

B

TR COIL
FO COIL

DM1

SPINDLE MOTOR

DM2

LOADING & SLED

MOTOR

Q1

APC

2

2

2

2

D. GND

7

IC3

MOTOR
DRIVER

LOADING

SLED

H
L

VREF

Q5,6,D3

CURR.

AMP

S. GND

CD PLAYER UNIT (X32-5840-00)

X1

CLOCK

16.934MHz

4

12

IC2

SERVO

PROCESSOR

u-COM

DRV MUTEMUTE

VREF

D. GND

IC1

RF AMP

VREF

A+5V

REF

A. GND

D. GND

SW +5V

D. GND

D2

5V REG

IC4

Q2

5V SW

LPF

Q4

8V SW

Q3

SW

4

2

S3

S2

S1

MOTHER
BOARD (X34-)

DOUT

CLK

DATA

MSTOP

MRST

MUTE L
MUTE R

L-ch
R-ch

A8V
A. GND

BU5V

D. GND

LOE/LIM SW

12EJE SW

LOS SW
S7.5V

S. GND
MOTOR
LO/EJ

22
19

18
10
11

12
13

8
6

9
7

15

14

1

17

21

20

3
2
4
5

2

KDC-1032/132/132CR
KDC-133/233/234SGY

COMPONENTS DESCRIPTION

● ELECTRIC UNIT (X34-419x-xx)

Ref. No. Application / Function Operation / Condition

IC1 System µ-COM System controller
IC4 Power IC Signal amplifier
IC7 Power supply IC DC5Vx1, 7.9x1, 8.1Vx2, 10.2Vx1, P-CON, P-ANT output
IC8 Mute logic IC Controls for mute operation
IC10 E-VOL & Tuner E-VOL, tuner, stereo decoder
IC11 Reset IC “L”: detection. Voltage is below 3.6V
IC12 E2PROM Saves and loads for tuner adjustment data
Q10 BU detection ON when the base goes “Hi” during BU is applied
Q20 ACC detection ON when the base goes “Hi” during ACC is applied
Q40 Mute driver for PRE OUT ON when the base goes “Lo”
Q50 5V SW ON when the base goes “Lo”
Q51 Control SW for SERVO+B ON when the base goes “Hi”
Q53 Control SW for IC3 ON when the base goes “Hi”. Output voltage is 10.3V
Q55 SERVO+B AVR Output voltage is 7.5V
Q70 Surge detection ON when the base goes “Hi”
Q102 Panel 5V SW ON when the base goes “Lo”
Q223 Mute SW for Lch PRE OUT Pre-output is muted when the base goes “Hi”
Q224 Mute SW for Rch PRE OUT Pre-output is muted when the base goes “Hi”
Q251 IC4 SVR discharge SW ON when the base goes “Hi”
Q501 AM RF amplifier Adjusts for gain
Q502 FM RF amplifier RF amplifier

● SWITCH UNIT (X16-356x-xx)

Ref. No. Application / Function Operation / Condition

IC1 LCD driver
IC2 Remote control sensor KDC-132CR only
Q1 Key scan start SW ON when the base goes “Lo”

● DAUGHTER UNIT (X89-2690-10) : KDC-1032 only

Ref. No. Application / Function Operation / Condition

Q221,222 2-PREOUT MUTE ON when the base goes “Hi”
Q225 2-PREOUT MUTE ON when the base goes “Hi”

● CD PLAYER UNIT (X32-5840-00)

Ref. No. Application / Function Operation / Condition

Generation of RF signal based on the signals from the APC circuit and pickup, and

IC1

RF AMPLIFIER responding generation of servo error (focusing error and tracking error) signals.
to CD-RW Detection of dropout, anti-shock, track crossing and off-tracking conditions, included

gain control function during CD-RW.

3

KDC-1032/132/132CR
KDC-133/233/234SGY

COMPONENTS DESCRIPTION

Ref. No. Application / Function Operation / Condition

Focusing, tracking, sled and spindle servo processing.

IC2

IC3 4ch BTL DRIVER

IC4 LPF (LOW PASS FILTER) 2nd low pass filter for audio signals
Q1
Q2 DIGITAL +5V SW ON when P. ON signal goes “Lo”
Q3 Q4 SW ON when P. ON signal goes “Lo” (SW+5V is ON)
Q4 ANALOG +8V SW ON when P. ON signal goes “Lo” (Q3 is ON)
Q5, 6 CURRENT AMP Current driver

CD SIGNAL PROCESSOR Automatic adjustment (focusing, tracking, gain, offset and balance) operations.
built-in µ-COM Digital signal processing (DSP, PLL, sub-codes, CIRC error correction, audio data

interpolation processing) operations, and microcomputer function.
Focusing coil, tracking coil, spindle motor and sled motor driver, disc loading and
eject operation.

APC (AUTOMATIC POWER CONTROL)

LD power control

MICROCOMPUTER’S TERMINAL DESCRIPTION

● SYSTEM µ-COM: IC1 on X34- (ELECTRIC UNIT)

Pin No. Pin Name I/O Application

1 TDF DET I Panel detection H: Panel detached, L: Panel attached

2 8EJE SW I

3NC-Not used (output L)
4AVSS -

5 L-RST O LCD driver reset

6 L-CE O LCD driver select

7AVREF1 ­8NC-Not used (connected to pin 9)
9 IC10-DATA I/O E2PROM communication data for IC10 H for no communication
10 IC10-CLK O E2PROM communication clock for IC10 H for no communication

11 L-DATAL I Communication data from LCD driver

12 L-DATAL O Communication data to LCD driver L-output when panel detached
13 L-CLK O Communication clock to LCD driver L-output when panel detached
14 R-DATA I Communication data from RDS L-output for models without RDS
15 R-QUAL I Communication qualification from RDS L-output for models without RDS
16~18 NC - Not used (output L)
19 FUNC OUT O Function output result H: OK, L: NG

Truth value table

Processing Operation Description

H: Eject completed
Always L-output for models that do not support 8cm CD

H: When panel detached, L: Reset
Normally H, L when Power OFF
H: Select (Panel communication)
L-output when panel detached

H for no communication, L when panel detached
Pull Down at over X34

4

KDC-1032/132/132CR
KDC-133/233/234SGY

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Application

20 NC - Not used (output L)

21 AFS O Constant switching for noise

22~25 NC - Not used (output L)
26 TYPE REF O 5V output for destination setting H: When reading destination
27 SD I Tuner SD input H: Staion found
28 NC - Not used (output L)
29 TYPE2 I Destination 2 q
30 TYPE1 I Destination 1 q
31 TYPE0 I Destination 0 q
32
33 VSS1 ­34

35 MUTE O Mute (E-Vol/Pre) control

36 M-DATA I/O CD mechanism communication data H for no communication
37 M-CLK O CD mechanism communication clock H for no communication

38 ADJ O Tuner line adjustment

39 P-MUTE O Power IC mute control

40 SVR O Power IC SVR control H: When reduction of power is detected, L: Normal
41 P-STBY O Power IC STBY control H: Power IC ON, L: Power IC OFF

42 SW5V O SW5V control

43 B.U-DET I Back Up detection H: Reduction of power, L: BU found
44 ACC-DET I ACC detection H: ACC OFF, L: ACC ON

45 PS1-0 O

46 PS1-1 O

47 PS1-2 O Power IC SW1 control 2 (P-ANT)
48 PS2-0 O Power IC SW2 control 0 (ILLUMI/FM/AM)
49 PS2-1 O Power IC SW2 control 1 (ILLUMI/FM/AM)
50 BEEP O Beep
51 ENC CCW I Rotary encoder input
52 ENC CW I Rotary encoder input
53 DSI O DSI control
54 LOE/LIM SW I CD mechanism Down & Limit detection H: Chucking detection, L: Normal
55 MO SW O CD mechanism motor switching SW H: Loading/Eject/Break, L: Play

TUNER-TYPE1

TUNER-TYPE1

I E-VOL setting switching H: OEM model 1, L: KENWOOD brand model

I E-VOL setting switching H: OEM model 0, L: KENWOOD brand model

Power IC SW1 control 0
(AUDIO8V/P-CON)
Power IC SW1 control 1
(AUDIO8V/P-CON)

Truth value table

Processing Operation Description

H: Normal, L: FM/AM seek and AF search
(L for Tuner SRC Auto Zero)

H: Mute ON, L: Mute OFF
L in 15 seconds after Power OFF

When ADJ=H, PS1-0,1=L, PS1-2,2-0,1=Hi-z
IC10-DATA, CLK=Hi-z
L: Mute OFF, L: Mute ON
H in 15 seconds after Power OFF

H: SW5V OFF, L: SW5V ON
H in 10 seconds after Power OFF

5

KDC-1032/132/132CR
KDC-133/233/234SGY

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Application

56 LO/EJ I/O CD mechanism Loading/Eject switching H: Eject, L: Loading
57 M-STOP O CD mechanism Stop output H: CD ON, L: Stop
58 M-RST O CD mechanism Reset output H: Normal, L: Mechanism reset
59 M-MUTE I CD mechanism mute input H: Mute OFF, L: Mute ON
60 RESET I System µ-com reset input
61 REMO I Remote controller input
62 R-CLK I RDS clock input L-output for models without RDS
63 NC - Not used (output L)
64 LOS SW I CD mechanism Loading SW detection H: No DISC, L: DISC IN (Loading start)

65 KEY-REQ I

66 8EJE SW I 12cm DISC detection L: 12cm DISC
67 VSS0 ­68 VDD1 ­69 X2 - MAIN X’tal oscillation circuit 4.19MHz X’tal connection
70 X1 - MAIN X’tal oscillation circuit 4.19MHz X’tal connection
71 IC - TEST
72 XT2 - NC Open
73 XT1 - VDD VDD connection
74 VDD0 -

75 AVREF0 -

76 S-METER I S-meter input
77 NOISE I NOISE detection (FM)

78 PHONE I 2way Mute

79 NC - Not used (output L)

80 AVCONT O AD reference voltage control

Key input detection H: No key input
(Connection with pin 11 L-DATAL) L: Key input (Started to read Edge Key Data)

AD converter reference voltage
(Connection to pin 80 AVCONT)

Truth value table

Processing Operation Description

2.5V or more: NAVI mute, 1.0V or less: TEL mute
L-output to the model without Phone mute

H: When AD converter is used
The same timing as P. ON

Truth value table

q Destination

TYPE2 (pin29) TYPE1 (pin30) TYPE0 (pin31) DESTINATION MODEL

000KKDC-1032/132/132CR
001 -­010EKDC-234SGA/334SA/334SAY/334SG/334SGY
011 -­100 -­101MKDC-132/233
110 -­1 11JRDT-111

6

KDC-1032/132/132CR
KDC-133/233/234SGY

MICROCOMPUTER’S TERMINAL DESCRIPTION

● CD MECHANISM µ-COM : IC2 on X32- (CD PLAYER UNIT)

Pin No. Pin Name I/O Application Processing Operation

1 TVD O Traverse drive output (PWM output)
2 SPL O Spindle motor drive output (PWM output)
3NC-No connection
4 PWM O Multipurpose PWM output
5 TBAL O Tracking balance adjustment output (PWM output)
6 FBAL O Focusing balance adjustment output (PWM output)
7 NRFDET I RF detection signal input L: Detection
8 OFT I Off-tracking signal input H: Detection
9 BDO I Drop-out signal input H: Detection
10 LDON O Laser-on signal output H: Focus ON
11 DSLB O DSL balance output
12 DVDD1 - Power supply for digital circuit
13 DVSS1 - GND for digital circuit
14 AVSS2 - GND for analog circuit For DSL, PLL and A/D converter
15 DSLF I/O Loup filter for DSL and bias output for ARF
16 ARF I RF signal input
17 RFSW I DSL circuit time constant switch
18 PLLF I/O Loup filter for PLL
19 PLLF2 I/O Loup filter character switch for PLL
20 IREF I Reference current input
21 RFENV I RF envelope signal input
22 TRCRS I Tracking cross signal input
23 TE I Tracking error signal input
24 FE I Focusing error signal input
25 AVDD2 - Power supply for analog circuit For DSL, PLL and A/D converter
26 AVSS1 - GND for analog circuit For Lch/Rch audio output
27 OUTR O Rch audio output
28 AVDD1 - Power supply for analog circuit For Lch/Rch audio output
29 OUTL O Lch audio output
30 DVSS3 - GND for digital circuit
31 CSEL ­32 NC - No connection
33 ASEL ­34 MSEL0 ­35 MSEL1 ­36~39 NC - No connection
40 VREFP - Reference power supply input for A/D converter
41 HOT ­42 8EJE SW -

7

KDC-1032/132/132CR
KDC-133/233/234SGY

MICROCOMPUTER’S TERMINAL DESCRIPTION

Pin No. Pin Name I/O Application Processing Operation

43

44 LOE/LIM SW I

45~49 NC - No connection
50 DVDD2 - Power supply for digital circuit
51 X1 I Main clock input
52 X2 O Main clock output
53 DVSS2 - GND for digital circuit
54 XSUB1 ­55 NC - No connection
56 TEST1 - Test terminal Normal condition: “H” fixed
57 TEST2 - Test terminal Normal condition: “H” fixed
58,59 NC - No connection
60 DRV MUTE O Driver mute control L: Mute ON, H: Mute OFF
61 MUTE L O Audio Lch mute output
62 MUTE R O Audio Rch mute output
63 RST I LSI reset input
64 OCD CLK ­65 MSTOP I Standby detection
66 DATA I/O
67 SBIO I Data input During serial writer is connected.
68 CLK I/O
69 TX O Digital audio interface signal output
70 NC - No connection
71 XSEL ­72 MCNT I Loading control / Eject control L: OFF (Host control), H: Mecha µ-com control
73 P. ON O Audio & Servo power supply control L: Power supply ON, H: Power supply OFF
74,75 NC - No connection
76 CD-RW O CD-RW control H: CD-RW, L: Normal disc
77 NC - No connection
78 DVDD3 - Power supply for digital circuit
79 FOD O Focusing drive output (PWM output)
80 TRD O Tracking drive output (PWM output)

12EJE/SDET SW

­Loading-end detection / H: Loading-end detection
Pick-up inner circumference detection L: Pick-up inner circumference detection

I2C bus data line (Communication line to system µ-com)

I2C bus clock line (Communication line to system µ-com)

During serial writer is connected.

During serial writer is connected.

8

TEST MODE

KDC-1032/132/132CR
KDC-133/233/234SGY

● How to enter the test mode

• Press Preset [1] and Preset [3] keys simultaneously to re­set the unit.

● How to clear the test mode

Reset. (Do not clear by Power OFF and ACC OFF.)

● Initial conditions of the test mode

• Source is STANDBY.

• Displays lights are all turned on.

• The volume is at -10dB (The display is 30).

• CRSC is OFF, regardless of whether there are switching
functions or not.

• LOUD is OFF.

• SYSTEM Q is NATURAL (FLAT).

• BEEP should always work by pressing a key.

● Test mode specification for TUNER

• TUNER (FM) Preset [4] key shall be 98.3MHz.

● CD receiver test mode specifications

•Forced discharging operation is prohibited at reset start. Note
that a CD is not to be recognized by reset when it is in­serted.

•[Track up] key triggers a jump to the following tracks.
No. 9 → No. 15 → No. 10 → No. 11 → No. 12 → No. 13 →
No. 22 → No. 14 → No. 9 (recursive)

• [T rack down] key moves back to the previous track from the
current track.

• Preset [1] key triggers a jump to No. 28.

• Preset [2] key triggers a jump to No. 14. (Scan function is
invalid.)

● Audio adjust mode

• Pushing the [VOL] key enters the audio function mode.

• The initial item is Fader. (FAD → BALANCE → BASS →
MID → TRE)

• Use [AM/FM] key to switching items.

• Use [Seek Up/Down] key to switching the adjusted value.

• Adjust Fader/Balance to three levels (15 ↔ 0 ↔ 15) with
Volume up/down. (initial value: 0)

•Adjust Bass/Middle/Treble to three levels (-8 ↔ 0 ↔ +8)
with Volume up/down. (initial value: 0)

• Pressing the [VOL] key for more than a second enters the
audio setup mode.

• Use [AM/FM] key to switching items.

• Use [Seek Up/Down] key to switching the adjusted value.

• Adjust Volume offset to two levels (-8 ↔ 0). (initial value: 0)

• Initialize everything with the [Track-Up] key in the standby
source.

• Pressing [∗] key on the remote controller enters the audio
adjustment mode. (Use [ ∗] k ey to cancel. KDC-132CR only)

• Continuous feed with a remote controller shall not be used.
Pressing a key activates a motion. (KDC-132CR only)

● Special display when all lights are on

The following information will be displayed by pressing the
preset key when STANDBY indicators are on.

[1] key •

[2] key • All LCD light up.
[3] key • Press the key for less than a second: Power-on time

[4] key • Press the key for less than a second: CD operation

[5] key • Press the key for less than a second: CD EJECT

Press [1] key. The current destination SW is displayed.
(Display) TP-X

• Press a key while the destination SW is displayed.
Version display (month, date, hour, minute in 8 digits)
(Display) XXXX xxxx

display (STANDBY time should not be counted).

• Press the key for more than 2 seconds while the
power-on time is displayed: The power-on time is
cleared.
(Display) Pon_x XXXX MAX 60000 (time)

time display.

• Press the key for more than 2 seconds while the CD
operation time is displayed: CD operation time is
cleared.
(Display) PLY_x XXXX MAX 60000 (time)

count display.

• Press the key for more than 2 seconds while the CD
EJECT count is displayed: CD EJECT count is
cleared.
(Display) EJC_x XXXX MAX 60000 (time)

9

KDC-1032/132/132CR
KDC-133/233/234SGY

TEST MODE

[6] key • Press the key for less than a second: PANEL open/

close count display.

• Press the key for more than 2 seconds while the
PANEL open/close count is displayed: PANEL open/
close count is cleared.
(Display) PnL_x XXXX MAX 60000 (time)

[FM] key • ROM correction version display.

(Display)
When valid: RKKK (K: numeric)
When invalid (when unreadable): R– – –
When invalid (when the version is different): Rooo

[AM] key • IC10 adjustment status.

(Display)
Adjustment complete: E2OK
Unadjusted: E2ER
Communication error: ICER
∗ Set Pin 19 to “H” output for E2P OK.

[TRACK- • Mechanism error detection status.
DOWN] • Communication error → Error No. 1 → Error No. 2 →
key Error No. 3 → Communication error

(Error No. 1 is the latest)

• The detection status is cleared by pressing [TRACK­DOWN] key for more than 2 seconds during status
display.
(Display)
When communication OK: ICOK
Communication error: ICER
Not detected: En – – (n: 1~3)
When detected: En∗∗ (∗∗: error code)

[TRACK- • AUDIO data initial value setting
UP] key (Display) INIT

● Backup current measurement

The MUTE terminal turns off in 2 seconds instead of 15
seconds when moved to ACC OFF.

● LCD short check

Switching the process in the following order by pressing [ATT]
key in the STANDBY source.

1. All indicators turn off.

2. Turn on odd terminals and even terminals of the largest
group of segments in every 250m sec.

3. Turn on only odd terminals.

4. Turn on only even terminals.

5. All indicators turn on.
(∗ Return to the first to repeat.)

● Others

•When you star t up the system in test mode, change the
LINE MUTE inhibition time to 1 second from 10 seconds.

● Clearing CD mechanism error information
(E2PROM data clear)

Press [ATT] + [Q] keys to reset (Reset is the only way to
cancel information).

• Memory clear mode display
Display: MCLR

• Memory clear status display (The result of clearing will be
displayed in 2 seconds after startup).
Display
Normal termination: CD_O

Abnormal termination: CD_–

●

FM/AM channel space switching

(only K or M destination models)

Press [1] + [5] keys and [SRC] key simultaneously during
ACC ON/Power OFF.

● IC10 (X34-) stereo adjustment (VCO adjustment)

Press [1] key and [6] ke y simultaneously while all indicators
are on (STANDBY) in test mode.
(Adjusted data will be written on E2PROM)

● Setting for OEM destination

Use pin 2 on the system µ-com terminal to support OEM
model.

TUN TYPE1 TUN TYPE2

(Pin 5) (Pin 6)

Low Low q KENWOOD brand model

High Low w KENWOOD brand

CRSC changed

Low High e OEM model with CRSC changed

High High r OEM model with CRSC &

De-emphasis changed

Description

model with

10

ADJUSTMENT

1.

IC10 (X34-) -The Tuner adjustment method

• When IC10 and its circumference are repaired, according
to the following order, it readjusts if needed.

• The adjustment item changes with parts to exchange. Please
refer to "Parts vs Adjustment item table".

1-1.

VCO coil adjustment - adjustment of tunning voltage

Voltage Check Point : Vt-Check Land

(PWB Side B, around D506)
Adjustment Coil : L507 (VCO Coil)
The adjustment method : VCO coil is turned and adjusted

according to the following tables.

Type Mode freq. Voltage Fig.
E/M AM 1611kHz 5.5 ± 0.1(V) 2, 3 (C)

KAM1700kHz 5.8 ± 0.1(V) 2, 3 (C)
JFM90.0MHz 5.6 ± 0.1(V) 2, 3 (C)

KDC-1032/132/132CR
KDC-133/233/234SGY

1-3. Adjustment of FM ANT & RF coil

Voltage Check Point : S-METER-Check Land

(PWB Side B, around W572)

Adjustment Coil : ANT Coil = L505

RF Coil = L506

Setting of Signal Generator : Refer to the following tables

Type Mode freq. Mod. ANT Input Fig.

E/M FM 87.5MHz OFF 5 or 11dBµEMF 1~3 (A),(C)

KFM87.9MHz OFF 5 or 11dBµEMF 1~3 (A),(C)

JFM76.0MHz OFF 5 or 11dBµEMF 1~3 (A),(C)

qThe appearance and the coil with which S-METER DC volt-

age serves as the maximum are turned and adjusted in the
above-mentioned SG input.

wBy the above-mentioned adjustment method, same adjust-

ment is performed to both sides (ANT & RF Coil).

M : AM Adjustment
For Your Information : The frequency of this unit is only set
up by preset key in case this adjustment

1-2. Adjustment of 1st & 2nd-MIX coil

Voltage Check Point : S-METER-Check Land

(PWB Side B, around W572)
Adjustment Coil : 1
Setting of Signal Generator : Refer to the following tables

Type Mode freq. Mod. ANT Input Fig.

KAM1000kHz OFF 35dBµEMF 1~3 (B),(C)

E/M/J AM 999kHz OFF 35dBµEMF 1~3 (B),(C)

qThe appearance and the coil with which S-METER DC volt-

age serves as the maximum are turned and adjusted in the
above-mentioned SG input.

wBy the above-mentioned adjustment method, same adjust-

ment is performed to both sides (1st & 2nd MIX Coil).

(

REAR VIEW

[Fig.1]

st IFT=L508 / 2nd IFT=L509

)

(

TUNER ANT

)

(A)

FM-SG

(B)

AM-SG

1-4.

Adjustment of STEREO (adjustment of 456k-VCO)

Adjust in TEST MODE

• How to enter the test mode
While pressing on [FM] and Preset [6] keys, reset the unit.

• Adjustment method
Complete on condition that show “STANDBY” when press­ing on Preset [1] and Preset [6] keys f or 1 second or more .
(Writing adjustment valve to the E2PROM.)
Effect of adjustment is in cofirmation of adjustment status
at Preset [4] key.

• Display of Preset [4]
Adjustment OK: “EPO” (7-segment LCD model)
Adjustment NG: “EPE” (7-segment LCD model)

• Releasing the test mode
Reset mode only.
ACC off, Power off, Power down and Remove the panel
mode is not releasing.

L506

L505

L508

L509

L507

(

OVER VIEW

[Fig.2]

(C)

Vt
Check Land

IC10

S-METER
Check Land

)

(

UNDER VIEW

[Fig.3]

)

DC Voltmeter

11