Kenwood RXD-V333 User manual

70%
MINI HiFi COMPONENT SYSTEM
© 2000-8/B51-5654-00 (K/K) 707
DISC
DISC
DISC
STANDBY
TIMER
DISPLAY/DEMO
MENU
SELECTBACK ENTER
SOUND
CONTROL TUNING MODE
M
U
L
T
I
C
O
N
T
R
O
L
REC/ARM
REVERSE
MODE TAPE EQ.
PHONES
DISC SKIP
OPEN/
CLOSE
E
X
.
B
A
S
S
PUSH
OPEN PUSH OPEN
VOLUME
CONTROL
MIC MIC
VOL.
MIN MAX
SVCD PBC
VCD
RXD-V333/V333S/V535/V535-GR/V535S/
RXD-V535S-H/V636/V737/V737S
SERVICE MANUAL
(XD-V333~V737)**
In compliance with Federal Regulations, following are repro-
duction of labels on, or inside the porduct relating to laser prod-
uct safety.
KENWOOD-Crop. certifies this equipment conforms to DHHS
Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM.
**Refer to page 2 if you want to know system configuration.
Panel ass'y
(A60-1898-01)
Knob
(K29-7721-04)
Panel(CD)
(A29-1119-02)
Front glass
(B10-3629-02)
Knob
(K29-7722-04)
Phone jack
(E11-0280-05)
Phone jack
(E11-0219-05)
Illustration is RXD-V737(M).

FM indoor antenna (1)
(T90-0836-05)
Speaker cords
Battery cover (A09-1192-08)
Remote control unit (1)
(A70-1415-05): RC-V535
Use to adapt the plug on the power cord to the shape
of the wall outlet.
(Accessory only for regions where use is necessary.)
AC plug adaptor (1)
(E03-0115-05)
M type only
Provided in the speaker package
XD-V636 (2)
XD-V737, XD-V737S (4)
Batteries (R6/AA) (2)
Video Cord (1)
(E30-1427-05)
AM loop antenna (1)
(T90-0852-05)
RXD-V333/V535//V636/V737
2
CONTENTS / ACCESSORIES
CONTENTS / ACCESSORIES .................................. 2
EXTERNAL VIEW .......................................................3
DISASSEMBLY FOR REPAIR....................................3
CIRCUIT DESCRIPTION ............................................4
ADJUSTMENT ............................................................9
WIRING DIAGRAM ...................................................11
PC BOARD .............................................................. 12
SCHEMATIC DIAGRAM ...........................................21
EXPLODED VIEW ....................................................41
PARTS LIST..............................................................43
PARTS DESCRIPTIONS ..........................................54
SPECIFICATIONS ....................................................55
Contents
Accessories
Cautions
System configuration
Unplug the power cord from the power outlet then,
while holding the ENTER key depressed, plug the
power cord again.
÷Please note that resetting the microcomputer clears the
contents stored in memory and returns it to the condition
when it left the factory.
Operation to reset
The microcomputer may fall into malfunction (impossibility
to operate, erroneous display, etc.) when the power cord is
unplugged while power is ON or due to an external factor.
In this case, execute the following procedure to reset the
microcomputer and return it to normal condition.
(Main unit only)
ENTER
SYSTEM MAIN UNIT DESTINATION SPEAKER SP CORD PARTS No
XD-V333 RXD-V333 MI LS-N373 E30-5829-08
XD-V333S RXD-V333S M2 LS-N373 E30-5829-08
XD-V535 RXD-V535 MIV LS-N573 E30-5829-08
XD-V535-GR RXD-V535-GR M1 LS-N573-GR E30-5829-08
XD-V535S RXD-V535S M2 LS-N573 E30-5829-08
XD-V535S-H RXD-V535S-H M2 LS-N573-H E30-5829-08
XD-V636 RXD-V636 MI LS-N653 E30-5475-08
XD-V737 RXD-V737 MIV LS-N773 E30-5876-08
XD-V737S RXD-V737S M2 LS-N773 E30-5876-08
See the following table

RXD-V333/V535//V636/V737
3
EXTERNAL VIEW
AC 220-
240V~
AC 110-
120V~
GND
FM
75
AM
ANTENNA
DIGITAL
VIDEO OUT REC OUT
DVD/VIDEO
INPUT
OPTICAL
OUT
LR
LR
+
-
+ -
FRONT SPEAKERS
LOW(6-16Ω)
FRONT SPEAKERS
HIGH(6-16Ω)
R L
L
R
SURROUND SPEAKERS
(8-16Ω)
+ -
ON
OFF SURROUND
R
L
Lock terminal board
(E70-0052-05)
Cover
(F07-1692-01)
Metallic cabinet
(A01-3739-11)
Slide switch
(S62-0001-05)
Lock terminal board
(E70-0125-05)
Pin jack
(E63-1010-05)
Pin jack
(E63-0137-15)
Lock terminal board
(E70-0126-05)
Slide switch
(S62-0077-05)
Oscillating module
(W02-1114-15)
DISASSEMBLY FOR REPAIR
BOTTOM SIDE
HOW to open the tray if not comes out.
(1) Turn the friction arm counterclockwise
using a screw driver and the like.
(2) Pull out the tray frontwards by hand
when the tray comes just out.
Illustration is RXD-V737(M).

RXD-V333/V535//V636/V737
4
CIRCUIT DESCRIPTION
1. Initialization
1-1 Setting of the Initial Conditions
While pressing the [ENTER] key, plug the AC CORD into
AC wall outlet.
1-2 Initializing Operation
• A microcomputer is initialized for start when the AC power
is turned on when pressing the [ENTER] key. At that time,
CD and cassette mechanisms are also initialised.
• During the initial conditions, the display shows (INITIAL-
IZE( and after that it will be returned to standby condition.
1-3 Initial Items
(1) AMPLIFIER
• POWER ON/STANDBY STANDBY
• VOLUME 14
• BALANCE CENTER
• INPUT SELECTOR TUNER
• SOURCE DIRECT OFF
• MUTE OFF
• AUTO POWER SAVE OFF
• AUX(DVD/VIDEO)
INPUT LEVEL -3
• DISPLAY MODE AUTO
• BEEP SOUND ON
(2) TUNER
• BAND FM
• FREQUENCY LOWEST FREQUENCY
• AUTO/MONO AUTO
• PRESET CHANNEL "--" ch
(3) CASSETTE DECK
• REVERSE MODE REVERSE
• TAPE A/B B
• TAPE DIRECTION FORWARD
(4) AUX (DVD/VIDEO)
• DVD/VIDEO DISPLAY DVD
(5) OTHER
• CLOCK 12:00am
• Program Timer Recoding ON TIME 12:00am
OFF TIME 12:00am
• Program Timer Play ON TIME 12:00am
OFF TIME 12:00am
• Program on Mode OFF
• SLEEP TIMER OFF
(6) Equalizer
• Equalizer OFF
• CUSTOM EQ.1~3 FLAT
• EX. BASS ON
• 3D LEVEL OFF
1-4 Mechanism Initialization
1-4-1 CD Mechanism
• If a mechanism error occurs "C ERR" is indicated on the
display.
1-4-2 DECK mechanism
• When the initial condition becomes NG for the third
time,decide the error.
The error condition is displayed as X ERR on the display.
1-4-3 Error display
• If both mechanism (CD/DECK) error occur, the display is
indicated as follows.
C X ERR
2. Destination List of Tuner
Set Type BAND Tuning Frequency Channel TUNER
Range Space IF RF Emphasis
M,Y K2 FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz 1
AM 530kHz~1610kHz 10kHz +450kHz 10kHz 0
FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz 1
M2 K3 MW 530kHz~1610kHz 10kHz +450kHz 10kHz 0
SW 5.9MHz~17.9MHz 5kHz +450kHz 5KHz 0
M,Y,X E1 FM 87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz 0
AM 531kHz~1602kHz 9kHz +450kHz 9kHz 0
3. Test Mode
3-1 Setting of the Test Mode
TAPE MODE TAPE A (< >) key+AC-ON
CD MODE DISC3 key+AC-ON
SUB CLOCK OSC
DIAGNOSIS
MENU key + AC -ON
The oscillation diagnosis(existence of oscillation and measurement of period) of a sub clock is per-
formed before the test mode is entered. If the diagnosis result is OK, the system enters the test mode.
If the diagnosis result is NG, the oscillation of the sub clock is diagnosed again. If the result is OK, the
system enters the test mode. If the diagnosis result is continuously NG 5 times, the system stops with
"ERR1" and "ERR2" displayed

RXD-V333/V535//V636/V737
5
CIRCUIT DESCRIPTION
3-2 Cancel of the test mode
By turning the power off, the system is initialized and the test mode is canceled.
3-3 Contents of the Test Mode
3-3-1 Deck Test Mode
KEY DISPLAY OPERATION
CD-PLAY/PAUSE 05 :
: Tracking-servo on.
(Change the mode 05 and 03 03 :Tracking-servo off.
alternately by the stop key.)
DISC 1 01 :STOP
Adjustment value/mean value
(Cyclically changed in the 07 TB value FB value
stop mode only.) 08 TG value FG value
09 FE value RF value
10 TE value VC value
STOP 01
:Stop (Press it 1time.)
Cancel the test mode. (Press it 2 times.)
TAPE EQ. Ex.01~02 CD track no. up.
REVERSE MODE Ex.02~01 CD track no. down.
KEY DISPLAY OPERATION
REC/ARM Normal display
If the REC/ARM key is pressed, the system record for 4 seconds. Then, it rewinds to the REC
starting position and plays back automatically. If the REC/ARM key is pressed, during the 4
seconds REC operation,the system records further for 4 seconds, then returns to the starting
position of the first 4 seconds REC operation and plays back.
HALF SW DISPLAY HALF SW DISPLAY
A PACK SW "T" (The first dot) A CrO2 SW "A"(The second dot)
B PACK SW "P"(The third dot) B RVS REC SW "E"(The fourth dot)
B FWD SW "T"(The sixth dot) B CrO2 SW "E"(The seventh dot)
A PLAY SW "Moon"(Segment) B PLAY SW "Sun"(Segment)
*Mechanism SW Detection
3-3-2 CD Test Mode

Input Voltage TYPE 1
(V) Pin 91
0.00 1.23 RXD-V535
1.25 2.48 RXD-535S
2.50 3.73 RXD-737S
3.75 5.00 RXD-636
Input Voltage KEY3 KEY2 KEY1
(V) Pin 94 Pin 95 Pin 97
0.00~0.23 REV.MODE - POWER
0.26~0.75 REC EX.BASS DISPLAY/DEMO
0.79~1.29 TAPE EQ. CD PLAY/PAUSE TUNING MODE
1.33~1.84 OPEN/CLOSE BAND MENU
1.88~2.38 DISC SKIP TAPE B FWD/
REV PLAY SOUND
2.42~2.93 DISC3 TAPE A FWD/
REV PLAY SELECT
2.96~3.45 DISC2 AUX BACK
3.49~3.98 DISC1 STOP ENTER
4.01~4.52 - - -
4.54~4.80 KEY OFF KEY OFF KEY OFF
RXD-V333/V535//V636/V737
6
CIRCUIT DESCRIPTION
4. Microprocessor: M30622MA-A76FP
4-1 Microprocessor Periphery Block Diagram
X28,IC1
DECK SYSTEM IC
(CXA1498S)
6
X13,IC1
3
DECK MECHA
SYSTEM IC
(M62498AFP)
X14,IC1 5
FL DRIVER
(LC75711NED)
4
X13,IC2
50
M30622MA-A76FP
2
X14,ED1
Vaccume Fluorescent
Display
(HNA-15MM18T) TUNER PACK
3
PLL IC
(LC72131)
X32,IC5 3
6
DSP IC
(CXD3008Q) 35
CD MECHA
7CDM-35
X32,IC12 X32,IC9
MPEG DECODER VIDEO AUDIO DAC
X32,IC11 X32.IC13
S-DRAM RAM
4-2 Key Matrix
The input voltage value : for [4.8V] in a standard voltage
4-3 Discrimination of Destination

RXD-V333/V535//V636/V737
7
CIRCUIT DESCRIPTION
4-4 Pin Description of Microprocessor
Pin No. Pin Name I/O Description ACTIVE
HL
1 CD5V O Control port of +5V AVR(X13,IC4). OFF ON
2 CE2 I Unused.
3 SD I SD detection input.
4 ST I Stereo detection input.
5 PLL CE O PLL IC chip enable.
6 ECHO MUTE O Control port of audio muting for echo. OFF ON
7 PLL CLK O PLL IC clock output.
8 BYTE - Connected to GND.
9 CNVSS - Connected to GND.
10 XCIN I Timer clock input(32.768kHz).
11 XCOUT O Timer clock output(32.768kHz).
12 RST I Reset signal input. NORMAL RESET
13 X OUT O Main clock output(10MHz).
14 VSS - Connected to GND.
15 X IN I Main clock input(10MHz).
16 VCC - u-com power supply(+5.0V).
17 NC - Connected to VCC.
18 REM I Signal input of remote control.
19 ESS ST I MPEG CS
20 ESS ST I MPEG CS
21 CE I Back up detection input. AC ON AC OFF
22 BEEP SOUND O Beep sound output.
23 PLL DO I PLL IC data input.
24 B PLAY I Detection switch input of head position for B deck
25 R REC I B deck reverse recording prohibition detection switch
26 B PACK I B deck cassette tape detection switch input.
27 A PLAY I Detection switch input of head position for A deck
28 ESS CLK I Clock input from MPEG decoder(X32,IC12).
29 ESS DIN I Data input from MPEG decoder(X32,IC12).
30 ESS DO O Data output to MPEG decoder(X32,IC12).
31 FL DATA O Data output to VFD dot driver.
32 A PACK I A deck cassette tape detection switch input.
33 FL CLK O Clock output to VFD dot driver.
34 FL CE O Chip enable output to VFD dot driver.
35 FL RST O Reset signal output to VFD dot driver.
36 F REC I B deck forward recording prohibition detection switch.
37 B CrO2 I B deck CrO2 detection switch input. CrO2 Normal
38 A CrO2 I A deck CrO2 detection switch input. CrO2 Normal
39 A SOL O A deck solenoid control.
40 CPM O Deck capstan motor control.
41 B SOL O B deck solenoid control.
42 NOR O B deck Normal/CrO2 changeover control. NORMAL CrO2
43 BIAS O Deck bias on/off changeover control. ON OFF
44 NC - Unused.
45 R/P O Deck recording/playback changeover control. RECORDING PLAY
46 A/B O Deck A/B changeover control. B DECK A DECK
47 A EQ O A deck play back equalizer control.
48 REC MUTE O Deck recording mute control. MUTE ON
49 LINE MUTE O Deck line mute control. MUTE ON
50 B EQ O Equalizer control of B deck play back.

RXD-V333/V535//V636/V737
8
CIRCUIT DESCRIPTION
Pin No. Pin Name I/O Description ACTIVE
HL
51 JOG 2 I Multi control jog input2 .
52 JOG 1 I Multi control jog input1 .
53 VOL 2 I Volume encoder input 2 .
54 VOL 1 I Volume encoder input 1 .
55 LED STBY O Control port of standby LED. OFF ON
56 LED TIMER O Control port of timer LED. OFF ON
57 LED SVCO O Control port of SVCO LED. OFF ON
58 LED VCO O Control port of VCO LED. OFF ON
59 LED PBC O Control port of PBC LED. OFF ON
60 ECHO 3 O Selection of echo 3.
61 ECHO 2 O Selection of echo 2.
62 VCC - power supply(+5.0V).
63 ECHO 1 O Selection of echo 1.
64 VSS - Connected to GND.
65 TD SW I Traverse down switch input port of CD mechanism.
66 TU SW I Traverse up switch input port of CD mechanism.
67 PHTR I stop switch input of CD mechanism.
68 PS SW I Tray position & disc detector switch input port of CD mechanism.
69 OPEN SW I CD open detection switch input.
70 CLOSE SW I CD close detection switch input.
71 OPEN O CD motor control output.
72 CLOSE O CD motor control output.
73 RTL O Rotary motor opposite direction(CCW) output.
74 RTR O Rotary motor positive direction(CW) output.
75 BRKM O CD motor control output(brake).
76 TU ON/OFF O Unused.
77 DC OFF O Power control of CD DSP IC. ON OFF
78 REC OUT MUTE O Control port of audio muting for video rec output. MUTE OFF MUTE ON
79 A-MUTE O Control port of audio muting.
80 ATT O -10dB attenunation output. ON OFF
81 CD PROT O Control port of CD protection.
82 POWER O Power relay control.
83 SP RELAY O Control port of speaker relay.
84 EV CLK O Clock output to E.volume.
85 EV DATA O Data output to E.volume.
86 EMPHASIS O Tuner emphasis output.
87 E2PROM DATA O Expander ROM data output.
88 E2PROM CLK O Expander ROM clock output.
89 PROTECT I Detection port of protection.
90 SPEANA I Input port of music signal.
91 TYPE I Discrimination of tuner destination.
92 BPH I B deck reel sensor input.
93 APH I A deck reel sensor input.
94,95 KEY3,KEY2 I A/D key input(key3,key2).
96 AVSS - Connected to GND.
97 KEY1 I A/D key input(key1).
98 VREF - A/D reference voltage input.
99 AVCC - u-com power supply(+5.0V).
100 PLL DATA O PLL I data output.

RXD-V333/V535//V636/V737
9
ADJUSTMENT
CD player adjustment
FIG.
(d)
No. ITEM INPUT
SETTINGS OUTPUT SETTINGS ALIGNMENT POINTS ALIGN FOR
PLAYER
SETTINGS
Note:
Type 4 disc : SONY YEDS-18 Test Disc or equivalent.
LPF: Around 47 kΩ+ 390 pF or so.
Step 1~4 are in Test Mode.
1
1. While pressing the "DISC 3" key, turn the power on to enter the test mode.
2. Load a disc on disc 1 tray.
LASER CURRENT
CHECK
Test disc
Type 4
Connect the DC volt-
meter to
CN6(pin1 and 2)
on X32.
– 0.5±0.2V
Press the
PLAY/PAUSE key,
then confirm that the
display is 03 or 05.
2 FB BIAS Test disc
Type 4
Connect an oscilloscope
as follows.
+SIDE: RF(X32, CN1, 1)
GND: VC(X32, CN1, 4)
VR 1 Optimum eye
pattern
Press the
PLAY/PAUSE key,
then confirm that the
display is 03 or 05.
(d)
¶RF signal in test mode (PLAY).
¶Perform the tangential and focusing offset are focused
into one point on the display. The crossing points above
and below the center shall also be looked clearly.
RF signal: AC coupled

RXD-V333/V535//V636/V737
10
ADJUSTMENT
RVS FWD
NO. ITEM INPUT SETTING OUTPUT
SETTING
CASSETTE TAPE
DECK SETTING
ALIGNMENT
POINTS ALIGN FOR FIG.
0dBs = 0.775V
I Cassette mechanism unit (Adjustment of the REC / PLAY head)
(1) Demagnetization
and cleaning
Power : OFF
Demagnetization,
cleaning, PLAY
Recording
head, erase
head, capstan
pinch roller
Demagnetize the REC / PLAY head
with the head eraser. Clean the REC /
PLAY head, erase head, capstan and
pinch roller using a cotton swab slightly
damped with alcohol.
(2)
Azimuth of the
REC / PLAY
head
SCC-1727
TCC-153
MTT-114
10kHz, -10dB
(B) PLAY
Adjust the output to maximum and
adjust the azimuth adjustment screw
for the Lissajours waveform pattern of
the oscilloscope to become close to a
45ß straight line.
II PC BOARD ADJUSTMENT
(1) TAPE SPEED
(NORMAL)
TCC-110
MTT-111
SCC-1727
3kHZ
(B) PLAY
(B DECK)
PLAY
(B DECK)
VR5 Adjust the tape speed so that 3kHz is
obtained at the center of the tape.
III PC board adjustment.
(1) PLAYBACK
LEVEL TCC-130 (B) VR 3 (L) VR 4 (R) Adjust the playback output to —2.5dBs.
(2) BIAS CURRENT
(A)
Adjust the AG for the
output of the DECK to
become -20dBs at 400Hz
and 12.5 kHz.
(B) REC PLAY VR 1 (L)
VR 2 (R)
Record 400Hz and 12.5kHz alternately,
and adjust the bias current adjustment
potentiometer for the playback levels to
become the same.
AC 220-
240V~
AC 110-
120V~
GND
FM
75
AM
ANTENNA
DIGITAL
VIDEO OUT REC OUT
DVD/VIDEO
INPUT
OPTICAL
OUT
LR
LR
Oscilloscope AC voltmeter
Frequency counter
AC voltmeter AG
{
(A) (B)
X13, CN1
L-PLAY
R-PLAY
GND 28
29
30
31
Measurement Equipment Connections
Cassette Deck adjustment