How it Works
Kenwood
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RXD-V313
Service Manual
25 pgs2.57 Mb0
Table of contents
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Kenwood RXD-V313 Service Manual

MINI HiFi COMPONENT SYSTEM
DISC 1 DISC 2 DISC 3
0
76
¢4
ROCK
FLAT
EX.BASS
POP
JAZZ
A B
3
1¡7/08 3 1¡7/08
MC1
MC2
MIN
MIN
MAX
MAX
MIC VOLUME
ECHO LEVEL
STANDBY
VIDEO CD HIT MASTER
INPUT
ON/STANDBY
TIMER SET
CLOCK
DISPLAY
/DEMO
AUTO/MONOTIMER
BAND
TUNING
PHONES
UP
DOWN
AUTO
PRESET
MANUAL PRESET
RECORDING/ PLAYBACK
PLAY BACK
DISC SKIP
RXD-V313
SERVICE MANUAL
(XD-V313)
Knob (K29-7533-08)
Knob (K29-7512-08)
Knob (K29-7549-08)
Indicator led lens (B19-1602-08)
Knob (K29-7513-08)
Jack(MIC) (E11-0387-08)
Knob (K29-7511-08)
Knob (K29-7515-08)
Front glass(L) (B10-3450-08)
Cassette lid(L) (A53-2103-08)
Knob (K29-7521-08)
Knob (K29-7522-08)
Knob (K29-7523-08)
© 1998-8/B51-5463-00 (K/K) 376
Knob (K29-7534-08)
Panel(CD) (A60-1579-08)
Front glass (A29-1048-08)
Knob (K29-7535-08)
Knob (K29-7518-00)
Knob (K29-7519-08)
Jack(H/P) (E11-0386-08)
Knob (K29-7516-08)
Front glass(L) (B10-3451-08)
Cassette lid(R) (A53-2104-08)
Front panel (A60-1575-08)
In compliance with Federal Regulations, following are reproduc­tions of labels on, or inside the product relating to laser product safety.
DANGER : Laser radiation when open and interlock defeated. AVOID DIRECT EXPOSURE TO BEAM
Refer to RXD-251/301/301E/301W/351/351E/351W/371S/A3 service manual(B51-5454-00), if you require mechanism operation description in detail. Please replace with the new pcb and/or mechanism on CD player if it doesn't work.
1 2 3
4 5 6
7 8 9
0
+10
SLEEP/
CLOCK LIGHT
DISPLAY
EQ.
REPEAT
RANDOMP.MODECHECKCLEAR
DIGESTZOOMFREEZEHIT MASTER
HIGH SPEED PLAYAUTO PAUSE
SLOWMEMORY STOP
MUTEINPUT
AUTO PBC
MULTIPLEX
AUTO/PAL/NTSCON SCREEN
DISC SKIP
OPEN/CLOSE
POWER
EX.BASS
SELECT
1
TUNING
¡
BAND
7 6
4
P.CALL
¢
VOLUME
REMOTE CONTROL UNIT
RC-V313
FM indoor antenna (1)
AM (T90-0815-08)
loop antenna (1)
AC (E03-0115-05)
plug adaptor (1)
Remote (A70-1261-08) : RC-V313
control unit (1)
Batteries (R6/AA) (2)
Use to adapt the plug on the power cord to the shape of the wall outlet. (Accessory only for regions where use is necessary .)
(T90-0801-05)
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.
Press the "POWER" key while holding the Stop (7) key of the CD section pressed, to switch off the power, and then switch the power on again after a few seconds.
÷ Please note that resetting the microcomputer clears the contents
stored in and returns and to condition when it left the factory.
RXD-V313

CONTENTS / ACCESSORIES / CAUTIONS

Contents

CONTENTS / ACCESSORIES / CAUTIONS...............2
EXTERNAL VIEW........................................................3
BLOCK DIAGRAM.......................................................4
CIRCUIT DESCRIPTION.............................................5
ADJUSTMENT.............................................................8
WIRING DIAGRAM....................................................10

Accessories

PC BOARD ................................................................11
SCHEMATIC DIAGRAM............................................15
EXPLODED VIEW .....................................................26
PARTS LIST...............................................................27
SPECIFICATIONS .......................................Back cover

Cautions

2

EXTERNAL VIEW

1 2
BEAT
CANCEL
–
+
+
–
SPEAKERS
(6–16 Ω)
FM 75 Ω
AM
ANTENNA
GND
AC 220–240VAC 110–120V
R
AUX
INPUT
AUX
OUTPUT
VIDEO OUTPUT
L
L
L
R
R
RXD-V313
1P rca jack (E63-1075-08)
Phono jack (E63-1076-08)
Slid switch beat cancel (S62-0057-08)
Lock terminal board (E70-0108-08)
Antenna terminal(4p) (E70-0070-08)
Slide switch (S62-0083-08)
3
4
CONTROL
A/B
PLAY AMP
ALC
PLAY
R/P
OSC
BIAS
(Q209,L201)
205
Q203, Q204,
206
Q201Q202
TAPE OUT
TAPE OUT
REC OUT
REC IN
DECK A/B SW Q213
B+
PRESET
EQ.
PRE-AMP
IC403
RL501
Q406,
407
MUTE
SYSTEM
415
VOL1(-10dB)
ATTENUATOR
Q414,
POWER AMP
IC501
+VCC
-VCC
Q504-506
DETECTOR
IC502
SPEAKER
PROTECTOR
+12V
512
Q511,
MUTE
JACK
SPEAKER
HEADPHONES
+5.6V
Q702
+7.5V +12V
Q701
Q704
+VCC
SWITCHED
to X'FORMER
-12V
Q707
+12V
-VCC
CN701
D702
D701
Q705,
706
Q703
LCD DISPLAY
IC601
u-COM
KEY
MATRIX
to CD PCB
CN401
to MAIN PCB
MIX
BUFF
AMP
TUNE
AM ANT
GND
FM ANT
AMP
AM RF
TUNE
OSC
ANT
RF
IFT
PLL
L.P.F
Q107,108
AMP
RF
IC201
u-COM
AMP
Q106
IFT CF1
IF
FILTER
AM SECTION
AM
FM SECTION
CF2
OUT
RC
IC102
TUNE
FM RF
FM
OSC
Q102
GND
IC01 LA9241M
RF SIGNAL PROCESSING/SERVO AMP
COMPACT DISC PLAYER
DIGITAL SIGNAL
CD POWER DRIVER
IC04 BA5936S
M'PEG u-COM
IC03 LC867240A
IC02 LC78630E
XTL01
16.9344MHz
NJM4558L
OP AMP
M
MOTOR
DISC
MOTOR
FEED
M
TRAY MOTOR
T/T MOTOR
SW
LIMIT IN
OUTPUT
AUDIO
CONTROL SW
S01-04
Rch
Lch
u-COM
ANALOG SIGNAL PROCESSOR(ASP)
DSP
to VCD BLOCK
to FRONT PCB
STANDBY
SW
Q501-503
TUNER
AUX
CD
CONTROL
AMP
IC404
D/A
CLK
CONTROL SRAM
A/D
LPF
LPF
BUFF MIX
AMP
MIC
MIC VR
ECHO VR
SW
LOGIC
IC301
Q301 Q302
EX-BASS
CN002 from CD-DSP PCB
LC865632A
IC005
OSD
LC74772V
IC004
LC78010E
VIDEO ENCODER
2SC2785
VIDEO BUFFER
Q001
Q002
2SC2785
FILTER
2SA1175
Q003
VIDEO O/P
IC15
CPU I/F
CD-ROM
DECODER
SYSTEM
DECODER
MPEG AUDIO
DECODER
DECODER
MPEG VIDEO
DRAM ARBITER
MPEG DECODER
LC74201E
IC001
CPU
PLL+VCO
54MHz
CN001
IC02
(from CD DSP
LC78630E)
4MBIT DRAM
IC003
UPC424260G5-60-7JF
NTSC/PALL SELECTOR
from CN002
from
MPEG
CN404
VIDEO OUT
JK402
MIC
(1/2)
IC401
412
Q411,
MUTE
OUT
AUX
305
Q304, Q306,
307
R/P SWITCHING
AMP
REC
CE
DI
CL
24
23
201916
14
1
2
5
9
11
23
3,28
2,29
1,30
+
+
FOCUS
TRACKING
+
CL
CE
DI
1,30
2,29
3,28
4,27
5,26
8
1
6,9
1
R
C
B
A
C
3,13
PTS
MPEG AUDIO
START TRIGGER
16.9344MHz
CD DSP CLOCK
TRACK 1 INFORMATION
YUV
17.734475MHz
PAL/
14.31818MHz
NTSC/
MPEG VIDEO PTS
MPEG BIT STREAM
+
IC201
FM RF IC101
TUNER UNIT
CD MECHA. UNIT
AUDIO UNIT/DISPLAY UNIT
RXD-V313
IC402
IC302 IC303
MPEG UNIT
RXD-V313

BLOCK DIAGRAM

RXD-V313

CIRCUIT DESCRIPTION

1. Microprocessor : (IC601, LC867224A-5H95)

1-1. Pin description
No. Name I/O Description
1 CE I LC7218, LC75392 CE out 2 RESET-OUT O Reset out IC03 (LC867240A) O 3 DI I LC7218, LC75392, LC78211 data out 4 DO O Data output to LC7218 5 CLK I LC 7218, LC75392, LC78211 clock out 6 DATA-OUT O Serial data out to LC867240A 7 DATA-IN I Serial output of SUBQ 80BIT 8 CLK-OUT O Clock output
9 N/C O No used 10 STB-OUT O Strobe out 11 BUSY-IN I Busy input 12 RESET I Reset signal input O 13 POWER-DOWN I Power down input O 14 GND – GND 15 VSS – Vss 16 X1 – Xtal 6.0MHz 17 X2 – Xtal 6.0MHz 18 VDD1 – Vdd
19~24 K1~K6 I Key input (K1~K4),K5/K6 (No used)
25 MODE-SW2 I Model discrimination 26 MODE-SW1 I Model discrimination
27, 28 GND I GND
29 REMOTE IN I Remote signal input O 30 VR + I VR encoder input A 31 VR - I VR encoder input B 32 PIC-UP I Pick-up SW 33 PIC-DOWN I Pick-down SW 34 DISC-COUNT I Disc counter SW 35 TURNTABLE-SW I Turntable SW 36 TRAY-OPEN I Tray open SW 37 TRAY-CLOSE I Tray close SW 38 TURNTABLE MOTOR + O Turntable motor (+) O 39 TURNTABLE MOTOR - O Turntable motor (-) O 40 TRAY MOTOR + O Tray motor control (+) O 41 TRAY MOTOR - O Tray motor control (-) O 42 MOTOR SPEED O Motor speed control Nor Down 43 LED HIT MASTER O LED control (hit master) O 44 TUNER O 45 CD O 46 AUX O 47 TAPE O No used O 48 FLAT O 49 ROCK O 50 JAZZ O 51 POP O
52~55 S1-S4 O Segment out (1~4)
56 VDD2 – Vdd 57 VSS2 – Vss
58~79 S5~S26 O Segment out (5~26) 80~82 BIAS3~1 – GND
Active
HL
5
RXD-V313
CIRCUIT DESCRIPTION
No. Name I/O Description
83~86 COM-0~3 O FL Common 0~3
87 FM-STEREO I FM stereo signal input Mono Stereo 88 SYN REC I Synchro start input O 89 VSS3 – Vss 90 VDD3 – Vdd 91 POWER-SW O Power SW out On Off 92 SYS-MUT O System mute out Off On 93 TU-MUT O Tuner mute out On Off 94 FUNCTION-TAPE O No used 95 LCD-BACK-LIGHT O LCD back light control On Off 96 N/C I No used 97 VR-1 O VR step extend out 1step Others 98 REC-MUTE O IC03 (LC867240A) rec out mute On Off 99 EX-BASS O EX-bass control On Off
100 VOICE O Voice cancel out Off On

2. MPEG Microprocessor : LC867240A (CD PCB, IC03)

2-1. Pin description
No. Name I/O Description
1 N/P SEL OUT O NTSC/PAL sel out to IC004 (LC78010E) O 2 RESET OUT O IC001 (LC74201JE) reset out 3 DI I DI (IC001, LC74201JE)/SIN (IC005, LC74772V) 4 DO O DO (IC001, LC74201JE) 5 CL I Clock (IC005, LC74772V) 6 DATA OUT O Data out to IC601 (LC867724A) 7 DATA IN I Data input from IC601 (LC867724A) 8 SCK I Clock out from IC601 (LC867724A)
9 STB IN I Strobe input from IC601 (LC867724A) 10 BUSY OUT O Busy out to IC601 (LC867724A) 11 MIRQ I MIRQ (LC74201JE) O 12 RESET I Reset input
13, 14 I/P – Vss
15 VSS – Vss
16, 17 CF1/CF2 – Xtal 6.0 MHz
18 VDD – Vdd 19 FUNCTION 4/3 – Vss 20 8300/8301 – Vss 21 MULTI 9/16 – Vss 22 IM DRAM – Vss
23~26 – – Vss
27 WRQ I Sub-code Q input stand by
28, 29 – – Vss
30 VIDEO LED O LED control (Video) O
31~37 N/C – No used
38 VDD CONTROL O MPEG Vdd control Other CD
39~55 N/C – No used
56 VDD – Vdd 57 VSS – Vss
58~73 – – No used
74 SL + O Sled motor control (+) O
6
Active
HL
Active
HL
CIRCUIT DESCRIPTION
RXD-V313
No. Name I/O Description
75 SL - O Sled motor control (-) O 76 SPEED B O Speed control terminal to IC01 (LA9241) 77 SPEED A O Speed control terminal to IC01 (LA9241) 78 AUDIO MUTE O Audio mute control On Off 79 MUTE O IC04 (BA6536S) mute control CD Other 80 PIC LIMIT SW I Pic limit switch input O
81~86 – – Vss
87 CQCK O Command clock output to IC2 (LC78630E) 88 DAT O Command output to IC2 (LC78630E) 89 VSS – Vss 90 VDD – Vdd 91 SQ OUT I Sub-code Q input from IC2 (LC78630E) 92 RWC O IC02 (LA9241), CE 93 RES O Chip reset out to IC2 (LC78630E) 94 DRF I DRF from IC01 (LA9241)
95, 96 N/C – No used
97 CE O CE to IC001 (LC74201JE) 98 VOE O VOE to IC001 (LC74201JE) 99 CS O CS to IC005 (LC74772V)
100 RESET OUT O Reset out O
Active
HL

3. Key matrix

PORT SW 1 SW 2 SW 3 SW 4 SW 5 SW 6 SW 7 SW 8 SW 9 SW 10
Pin 19 Power Input Clock Timer Timer – EQ Off Rock Jazz Pop
(K1) Set Mode Set
Pin 20 Tuning Tuning Band Auto/ Auto Manual EX Bass – – –
(K2) Up Down Mono Preset Preset
Pin 21 CD CD – – Disc Disc 1 Disc 2 Disc 3 Open –
(K3) AMS + AMS - Skip Close
Pin 22 CD CD Play – – – – – – – –
(K4) Stop Pause

4. All LCD light on mode

• The all LCD light up when the STOP key and TIMER SET key are pressed simultaneously, while the power is ON.
• When the ON/STANDBY key is pressed, the all LCD light on mode is canceled.
7
RXD-V313
FM 75 Ω
AM
ANTENNA
GND
(A)
(C)
(D)
AM-SG
FM-MPX-SG
FM-MPX-SG
POLAR SG
Dummy antenna
Oscilloscope
AC voltmeter
(B)
Distortion meter
TO TUNER UNIT CN101, pin 9 (Lch)
pin 7 (Rch) pin 8 (GND)
NO.
ITEM
INPUT
SETTING
OUTPUT
SETTING
TUNER
SETTING
ALIGNMENT
POINTS
ALIGN FOR
FIG.
1.
IF
(A)
98 MHz,1 kHz MOD
±75 KHz (DEV)
60 dBu (ANT INPUT)
(B)
98MHz
T101
Maximum output
(Minimum distortion)
2.
LOW END
TRACKING
(A)
87MHz, 1 kHz MOD
±75 kHz (DEV)
35 dBu ( ANT INPUT)
(B)
87MHz
L102
Maximum output
3.
HI END
TRACKING
(A)
108MHz,1 kHz MOD
±75 kHz (DEV)
35 dBu (ANT INPUT)
(B)
108MHz
TC101
Maximum output
4.
VT
–
Connect the DC
voltage meter to
TP2.
87.5 MHz
L103
VT=1.0V±0.05V
108 MHz
–
Check the
VT=7.0V±1.0V
NO.
ITEM
INPUT
SETTING
OUTPUT
SETTING
TUNER
SETTING
ALIGNMENT
POINTS
ALIGN FOR
FIG.
1.
IF
(D)
531 kHz 1 kHz,
30% MOD
60 dBu (ANT INPUT)
(B)
531 kHz
T102
Maximum output
(Minimum distortion)
2.
LOW END
TRACKING
(D)
531 kHz 1 kHz,
30% MOD
30 dBu (ANT INPUT)
(B)
531 kHz
L104
Maximum output
3.
HIGH END TRACKING
(D)
1602 kHz 1 kHz,
30% MOD
30 dBu (ANT INPUT)
(B)
1602 kHz
TC102
Maximum output
4.
VT
–
Connect the DC
voltage meter to
TP2.
531 kHz
L105
VT=1.2V±0.05V
1602 kHz
–
Check the
VT=7.3V±1.0V

FM SECTION

MW SECTION

ADJUSTMENT

INSTRUMENTS CONNECTION
8
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