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MX-K35V
SERVICE MANUAL
COMPACT COMPONENT SYSTEM
MX-K35V
NTSC/PAL COMPATIBILITY
PLAY & EXCHANGE
3-CD
CD-R/RW PLAYBACK
RM-SMXK35V REMOTE CONTROL
COMPACT COMPONENT SYSTEM
MX-K35V
1 4 7 10
CD1
2 5 8 +10
CD2
3 6 9
STANDBY/ON
1 BIT DUAL D/A
CONVERTER
SLEEP
NEXT
ACTIVE BASS EX.
AUX
PREV
PRESET
C
K
P
O
FM MODE FM /AM
STANDBY/ON
STANDBY
RO
P
CANCEL
SET
CD3
CD
SELECT
V
O
LU
ME
SOUND MODE
PROGRAM /RANDOM REPEAT
TAPE A/B TAPE
C L AS SIC
M
E
AU X
CD
PHONES
FM
PREV.
NEXT V.INTRO HIGHLIGHT
TA P
/A
VCD NUMBER TUNING
DISC SKIP
RETURN
STILL
ON SCREEN
REPEAT
SELECT PROGRAM RANDOM
CD REC START /STOP REC START DUBBING
CD CONTROL
CD
CD
RETURN
SOUND MODE
ECHO
MIN
MAX
ACTIVE BASS EX.
VOLUME
FADE MUTING
EJECT
EJECT
A
PLAY
FULL - LOGIC CONTROL
CD SYNCHRO RECORDING
REC/PLAY
B
SP-MXK35V
CA-MXK35V
CD
KARAOKE
KEY CONTROL
MPX
MIC
MIC LEVEL PBC
KEY CONTROL
CLOCK /TIMER
TAPE A/B
1
2
3
SP-MXK35V
Area suffix US ---------------------- Singapore UX ------------------- Saudi Arabia
Contents
Safety precautions Preventing static electricity Important for laser products Disassembly method Adjustment method Flow of functional operation until TOC read 1-2 1-3 1-4 1-5 1-20 1-22 Maintenance of laser pickup Replacement of laser pickup Description of major ICs Wiring connections 1-23 1-23 1-24 1-35
COPYRIGHT
2001 VICTOR COMPANY OF JAPAN, LTD.
No.21033 Nov. 2001
MX-K35V
1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only. 2. Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturer`s warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom. 3. Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards. 4. The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after re-assembling. 5. Leakage currnet check (Electrical shock hazard testing) After re-assembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock. Do not use a line isolation transformer during this check. Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.). Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more sensitivity in the following manner. Connect a 1,500 10W resistor paralleled by a 0.15 F AC-type capacitor between an exposed metal part and a known good earth ground. AC VOLTMETER Measure the AC voltage across the resistor with the AC (Having 1000 ohms/volts, voltmeter. or more sensitivity) Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to 0.15 F AC TYPE the chassis, and meausre the AC voltage across the resistor. Place this Now, reverse the plug in the AC outlet and repeat each probe on measurement. Voltage measured any must not exceed 0.75 V each exposed AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.). 1500 10W metal part.
Good earth ground
1. This equipment has been designed and manufactured to meet international safety standards. 2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained. 3. Repairs must be made in accordance with the relevant safety standards. 4. It is essential that safety critical components are replaced by approved parts. 5. If mains voltage selector is provided, check setting for local voltage.
! Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system.
In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety. (This regulation does not correspond to J and C version.)
1-2
MX-K35V
Preventing static electricity
1. Grounding to prevent damage by static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
2. About the earth processing for the destruction prevention by static electricity
In the equipment which uses optical pick-up (laser diode), optical pick-up is destroyed by the static electricity of the work environment. Be careful to use proper grounding in the area where repairs are being performed.
2-1 Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the traverse unit (optical pickup) on it.
2-2 Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
(caption) Anti-static wrist strap Conductive material (conductive sheet) or iron plate
3. Handling the optical pickup
1. In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition. (Refer to the text.) 2. Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily destroy the laser diode.
4. Handling the CD changer unit (optical pickup)
1. Do not subject the CD changer unit (optical pickup) to strong shocks, as it is a sensitive, complex unit. 2. Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the CD changer unit. Be careful not to take too long a time when attaching it to the connector. 3. Handle the flexible cable carefully as it may break when subjected to strong force. 4. It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it
CD changer unit CD changer mechanism assembly
Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for pick-up and how to detach the CD changer mechanism. 1. Remove the CD changer unit. 2. Disconnect the harness from connector on the CD motor board. 3. Solder is put up before the card wire is removed from connector CN601 on the main board as shown in Fig.1 and Fig. 2. (When the wire is removed without putting up solder, the CD pick-up assembly might destroy.) 4. Please remove solder after connecting the card wire with CN601 when you install picking up in the substrate.
Fig.1
Soldering
Fig.2
1-3
MX-K35V
Important for laser products
1.CLASS 1 LASER PRODUCT 2.DANGER : Invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam. 3.CAUTION : There are no serviceable parts inside the Laser Unit. Do not disassemble the Laser Unit. Replace the complete Laser Unit if it malfunctions. 4.CAUTION : The compact disc player uses invisible laserradiation and is equipped with safety switches whichprevent emission of radiation when the drawer is open and the safety interlocks have failed or are de feated. It is dangerous to defeat the safety switches. 5.CAUTION : If safety switches malfunction, the laser is able to function. 6.CAUTION : Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
! CAUTION Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.
VARNING : Osynlig laserstrålning är denna del är öppnad och spårren är urkopplad. Betrakta ej strålen. VARO : Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle.Älä katso säteeseen.
ADVARSEL : Usynlig laserstråling ved åbning , når sikkerhedsafbrydere er ude af funktion. Undgå udsættelse for stråling. ADVARSEL : Usynlig laserstråling ved åpning,når sikkerhetsbryteren er avslott. unngå utsettelse for stråling.
REPRODUCTION AND POSITION OF LABELS WARNING LABEL
DANGER: Invisible laser radiation when open and interlock failed or defeated. AVOID DIRECT EXPOSURE TO BEAM. (e) ADVARSEL: Usynlig laserstråling ved åbning, når sikkerhedsafbrydere er ude af funktion. Undgåudsættelse for stråling (d) VARNING: Osynlig laserstrålning när denna del är öppnad och spärren är urkopplad. Betrakta ej strålen. (s) VARO: Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen. (f)
CLASS 1 LASER PRODUCT
1-4
MX-K35V
Disassembly method
Commence disassembly of this set by removing the main units and then proceed to the components and assemblies inside the units.
Replacement of the fuses and the power IC Top cover CD changer unit Front panel assembly Chassis unit CD changer unit Removing the main board Removing the CD changer mechanism assembly Removing the CD pickup Replacing the loading motor and belt of the CD changer tray Replacing the CD tray rotor belt of the CD changer, and removing the motor Front panel assembly Removing the cassette deck mechanism Removing the head phone board Removing the microphone amplifier board Removing the control/FL board Removing the switch board and active bass ex. switch board Removing the cassette deck main motor, and replacing the main belts Removing the leaf switches of the cassette deck mechanism Removing the cassette deck heads Chassis unit Removing the Video & CD board Removing the 3-pin regulator Removing the power amplifier board, voltage selector board and power transformer board
1-6 1-7 1-8 1-9 1-17 1-8 1-10 1-11 1-12 1-12 1-12 1-9 1-13 1-13 1-14 1-14 1-15 1-16 1-16 1-17 1-17 1-17 1-18 1-19
1-5
MX-K35V
Replacement of the fuses and the power IC Replacing the fuses (See Fig.1)
Prior to performing the following procedure, remove the top cover. 1. Replace the fuses inside. [Caution] Be sure to use fuses with the specified ratings.
Fuse (F952) 1.6A 250V Fuse (F953) 1.25A 250V Fuse (F951) 2.5A 250V Power transformer board
Chassis
Fig.1
Rear panel
Replacing the power IC (See Fig.2 to 4)
Prior to performing the following procedure, remove the top cover. 1. Remove the two screws A that attach the heat sink cover to the rear panel. 2. Pull the heat sink cover outward. 3. Remove the two screws B from the bracket that retains the power IC. 4. Remove the solder fixing the power IC.
A
Heat sink cover
Fig.2
Rear panel
Power amplifier board
Rear Heat sink Power IC soldering part
B
Fig.3
Fig.4
1-6
MX-K35V
Removing the top cover (See Fig.5 and 6)
1. Remove the two screws C and four screws D that retain the top cover from the rear of the body. 2. Remove the four screws E retain the top cover from the two sides of the body. 3. Remove the top cover from the body by lifting it toward the rear.
Top cover
C
D
Fig.5
D E
Front panel assembly
E
Fig.6
1-7
MX-K35V
Removing the CD changer unit (See Fig.7 to 10)
Prior to performing the following procedures, remove the top cover. [Caution] Although the CD mechanism unit can be removed without removing the CD tray panel, it is still recommended to remove it in order to prevent damage. a. From the front panel side of this set, push in the sections marked with arrows and pull out the CD tray toward the front. b. Remove the CD tray panel by pushing both of its extremities upward in the direction of the arrows. c. Push the CD tray deep into the set. 1. Disconnect the cassette head wires from the connectors CN307 and CN308 on the main board, which is located below the CD changer unit. 2. Disconnect the microphone amplifier wire from the connector CN306 on the main board. 3. Disconnect the card wires from the connectors CN301, CN302, CN305 and CN606 on the main board. 4. Disconnect the parallel wires from the connectors CN902A, CN902B and CN902C on the power amplifier board. 5. From the rear of the set, remove the two screws F retaining the CD changer unit, then remove the four screws G retaining the ANTENNA terminal the AUX IN terminal and LINE OUT terminal. 6. Push down and disengage the two claws a holding the CD changer unit at the bottom of its front panel and then remove the CD changer unit.(See Fig. 10)
CD tray panel
Fig.7
CD tray panel
Fig.8
AUX IN terminal
F
ANTENNA terminal CD changer unit
G
Fig.9
Claw a
1-8
Fig.10
MX-K35V
Removing the front panel assembly (See Fig.11 and 12)
Prior to performing the following procedures, remove the top cover. Also remove the CD changer unit. 1. Disconnect the parallel wire and card wire from the connectors CN901 and CN903 on the power amplifier board. 2. Remove the two screws H retaining the front panel assembly onto the bottom of the body. 3. Remove the screw J retaining the cassette deck mechanism and then remove the GND lug b that comes from the power amplifier board. 4. Disengage the claws c on both sides at the bottom of the front panel assembly and then remove the assembly.
H
Fig.11
Control/FL board
Power amplifier board
Claw c
GND lug b
J
Fig.12
1-9
MX-K35V
Removing the main board (See Fig.13 and 14)
Prior to performing the following procedures, remove the top cover. Also remove the CD changer unit. 1. Disconnect the wires from CN602 and CN603 on the main board, which is located on the backside of the CD changer unit. 2. Disconnect the card wire from connector CN604 of the main board at the back of the CD changer unit. 3. The three screws K and screw with washer L retain the main board should be removed. 4. Remove the main board by pulling it toward the side where the CN601 is located. 5. Using solder, short the CD pickup to connect to short round. [Caution] (See Fig.14) After re-connecting the wires, be sure to remove the shorting solder from the GND connection. 6. Disconnect the card wire from the connector CN601 on the main board and then remove the main board.
Main board
K
CN602 CN604 CN603
CN601
K
L
Fig.13
Main board
CN601
[Caution]
Short round
Fig.14
1-10
MX-K35V
Removing the CD changer mechanism assembly (See Fig.15 to 17)
Prior to performing the following procedures, remove the top cover. Also remove the CD changer unit. 1. Remove the spring d from the front surface of the CD changer mechanism unit. 2. Turn the CD changer mechanism unit upside down, and remove the spring e connecting the unit to the CD changer mechanism assembly. [Note] When re-assembling after the disassembly work, apply bonding agent on the spring to prevent it from slipping off. 3. Remove the two screws with the washer M retaining the CD changer mechanism assembly. [Caution] When replacing the CD changer mechanism assembly, be sure not to mistake the positions of the red and blue dampers.
[Note]
Spring d
CD changer unit
CD changer mechanism assembly
M
Red
Fig.15
Red
[Note]
Spring e
CD changer mechanism assembly
Fig.16
Blue
Blue
Fig.17
1-11
MX-K35V
Removing the CD pickup (See Fig.18)
Prior to performing the following procedures, remove the top cover. Also remove the CD changer unit. Also remove the CD changer mechanism assembly. 1. Widen the section f. 2. While keeping the section f wide open, push the section g in the direction of the arrow to remove the shaft, and then remove the CD pickup.
CD pickup
f
g
Replacing the loading motor and belt of the CD changer tray (See Fig.19)
Prior to performing the following procedure, remove the top cover. 1. Pull out the CD changer tray. 2. Remove the belt from the pulley. 3. Remove the two screws N retaining the CD changer tray loading motor. [Caution] When pushing in the CD changer tray, be sure to lower the CD changer mechanism assembly by manually turning the UD cam gear in the direction of the arrow.
Shaft
Fig.18
N
Pulley Belt
UD cam gear
Replacing the CD tray rotor belt of the CD changer, and removing the motor (See Fig.20 and 21)
Prior to performing the following procedures, remove the top cover. Also remove the CD changer unit. 1. Remove the two screws P retaining the stopper brackets on both sides of the CD changer unit. 2. Remove the stopper brackets from both sides of the CD changer unit. 3. Pull out the CD tray from the CD changer unit, all the way and then lift the tray upward to remove. 4. Turn the CD tray upside down and remove the tray rotor belt from the pulley. 5. Turn the CD tray upside down and disconnect the card wire from the connector CN605 on the CD tray rotor motor assembly. 6. Remove the two screws Q retaining the CD tray rotor motor, and then remove the CD tray rotor motor.
CD changer tray
Fig.19
CD tray rotor belt
Q
Stopper bracket
P
Fig.21
Pulley CN605
Fig.20
Q
1-12
MX-K35V Removing the cassette deck mechanism (See Fig.22)
Prior to performing the following procedure, remove the top cover. Also remove the CD changer unit. Also remove the front panel assembly. 1.Remove the five screws R retaining the cassette deck mechanism and then remove the wire clamp lug h that comes from the back of the front panel assembly.
Front panel assembly
R
Wire clamp lug "h"
R
Fig.22
Front panel assembly
Removing the head phone board (See Fig.23)
Prior to performing the following procedure, remove the top cover Also remove the CD changer unit. Also remove the front panel assembly. 1. Remove the screw with the washer, S that retains the head phone board from the back of the front panel assembly.
Head phone board
S
Fig.23
1-13
MX-K35V
Removing the microphone amplifier board (See Fig.24 and 25)
Prior to performing the following procedure, remove the top cover Also remove the CD changer unit. Also remove the front panel assembly. 1. Pull out the mic volume knob from the front of the front panel assembly. 2. Remove the screw with the washer, T that retains the microphone amplifier board.
Front panel assembly
Mic volume knob
Fig.24
Front panel assembly
Braket Microphone amplifier board
T
Fig.25
Front panel assembly
Removing the control/FL board (See Fig.26)
Prior to performing the following procedure, remove the top cover. Also remove the CD changer unit. 1. Remove the three screws U that retain the control/FL board from the back of the front panel assembly.
U
Control/FL board
1-14
Fig.26
MX-K35V
Removing the switch board and active bass ex. switch board (See Fig.26 to 29)
Prior to performing the following procedures, remove the top cover. Also remove the CD changer unit. Also remove the front panel assembly. 1. Pull out the volume control knob from the front of the front panel assembly. 2. Remove the nut and washer retaining the volume knob shaft. 3. Remove the three screws U retaining the control/FL board from the back of the front panel assembly. 4. Remove the control/FL board. 5. Remove the eleven screws V retaining the switch board. 6. Remove the two screws W retaining the active bass ex. switch board.
Front panel assembly
Volume knob
Fig.27
Front panel assembly
Nut Volume shaft Washer
Fig.28
W
Active bass ex. switch board
V
V
Switch board
Fig.29
1-15
MX-K35V Removing the cassette deck main motor, and replacing the main belts (See Fig.22, 30 and 31)
Prior to performing the following procedures, remove the top cover. Also remove the CD changer unit. Also remove the front panel assembly. 1. Remove the five screws R retaining the cassette deck mechanism. 2. Remove the cassette deck mechanism. 3. Remove the two screws X retaining the main motor from the front side of the cassette deck. [Caution] After attaching the main motor, check the orientation of the motor and the polarity of the wires. 4. From the backside of the cassette deck, remove the main motor and two main belts. [Caution] The lengths of the cassette A (playback only) and cassette B (record/play) main belts are different. When attaching the main belts, use the longer belt for cassette A. Fig.30
Cassette deck mechanism (Front side)
X
Cassette deck mechanism (Back side)
Cassette deck main motor
Main belt (For B cassette)
Main belt (For A cassette)
Fig.31
Removing the leaf switches of the cassette deck mechanism (See Fig.22 and 32)
Prior to performing the following procedures, remove the top cover. Also remove the CD changer unit. Also remove the front panel assembly. 1. Remove the five screws R that retain the cassette deck mechanism. 2. Remove the cassette deck mechanism. 3. Turn the cassette deck mechanism upside down. 4. Remove the solder from around the leaf switches. 5. Pull out the leaf switches from the front side of the cassette deck mechanism.
Solder side of leaf switch
Cassette deck mechanism (Back side)
Fig.32
1-16
MX-K35V Removing the cassette deck heads (See Fig.22 and 33)
Prior to performing the following procedures, remove the top cover. Also remove the CD changer unit. Also remove the front panel assembly. 1. Remove the five screws R that retain the cassette deck mechanism. 2. Remove the cassette deck mechanism and place it so that the front side faces up. 3. Remove the solder from the bottom side of the head terminal and disconnect the wire. 4. Remove the screw Y that retains the head. 5. Loosen the screw Z that retains the head. 6. Hold the head and slide it in the direction of the arrow to remove it.
Cassette deck mechanism (Front side)
PB head
REC/PB head
Z Y
Fig.33
Z Y
Removing the Video & CD board (See Fig.2, 34 to 36)
Prior to performing the following procedures, remove the top cover. 1. Disconnect the card wire from connector CN606 on the main board. 2. Remove the three screws AA and screw AB retains the Video & CD board cover. 3. In order to remove the wire from the Video & CD board, remove the solder on the power amplifier board. 4. Remove the Video & CD board cover. 5. Remove the two screws AC retains the Video & CD board.
Heat sink
AB AA
Fig.34
Video & CD board cover
Video & CD board
Rear CN606
Power amplifier board
Solder
Wire
AC
Fig.36
Fig.35
1-17
MX-K35V Removing the 3-pin regulator (See Fig.2, 37 and 38)
Prior to performing the following procedures, remove the top cover. 1. Remove the two screws A connecting the heat sink cover to the rear panel. 2. Pull the heat sink cover foward you. 3. Remove the screw AD that retains the bracket holding the 3-pin terminal regulator. 4. Remove the solder fixing the 3-pin regulator.
Rear panel
Heat sink
AD
Fig.37
Power amplifier board
Rear
Solder on the 3-pin regulator
Fig.38
1-18
MX-K35V Removing the power amplifier board, voltage selector board and power transformer board (See Fig.2, 3, 37, 39 to 42)
Prior to performing the following procedures, remove the top cover. Also remove the CD changer unit. 1. Remove the two screws A connecting the heat sink cover to the rear panel. 2. Pull out the heat sink cover toward you. 3. Remove the two screws B that retain the bracket supporting the power IC. 4. Remove the screw AC that retain the bracket holding the 3-pin terminal regulator. 5. Remove the two screws AE that retain the SPEAKERS terminals. 6. Remove the screw AF that retains the rear panel, and then remove the rear panel. 7. Remove the two screws AG that retain the voltage selector board. 8. Disconnect the parallel wires from the connectors CN951A and CN951B on the power amplifier board. 9. Remove the screw AH that retain the power amplifier board and then remove the assembly. 10. Remove the solders j connecting the six wires. 11. Remove the four screws AJ that retain the power transformer board and then remove the assembly.
Rear panel
Speaker terminal
AE AG
Voltage selector
AF
Fig.39
Rear panel
Power amplifier board
CN951B CN951A
Voltage selector board Chassis
Fig.40
Chassis
(Top view)
Power amplifier board
Power transformer board
AJ
AJ
j
Chassis
AH
Fig.41
j
Clamp AC power cord
Fig.42 1-19
MX-K35V
Adjustment method
Measurement instruments required for adjustment
1. Low frequency oscillator, This oscillator should have a capacity to output 0dB to 600ohm at an oscillation frequency of 50Hz-20kHz. 2. Attenuator impedance : 600ohm 3. Electronic voltmeter 4. Frequency counter 5. Wow flutter meter 6. Test tape VT712 : For Tape speed and wow flutter ( 3kHz) VT703 : For Head angle(10kHz),Play back frequency VT724 : For reference signal test(1kHz) VT739 : For frequency response test(63Hz,1kHz,10kHz) 7. Blank tape TAPE : AC-225, TAPE : AC-514 8. Torque gauge : For play and back tension Forward ; TW2111A, Reverse ; TW2121A Fast Forward and Rewind ; TW2231A 9. Test disc : CTS-1000(12cm),GRG-1211(8cm) 10. Jitter meter Radio input signal AM modulation frequency : 400Hz Modulation factor : 30% FM modulation frequency : 400Hz Frequency displacement : 22.5kHz Frequency Range AM 522kHz~1629kHz (at 9kHz channel space) FM 87.5MHz~108MHz Standard measurement positions of volume and switch Power : Standby (Light STANDBY Indicator) A.BUSS switch: OFF Sound mode : OFF Main VOL. maximum Travers mecha set position : Disc 1 Mic MIX VOL : MAX ECHO : OFF
Measurement conditions
Power supply voltage AC110/127/220/230-240V (50Hz/60Hz) : US/UX Measurement output terminal : Speaker out : TP101(Measuring for TUNER/DECK/CD) : Dummy load 6ohm
Precautions for measurement 1. Apply 30pF and 33kohm to the IF sweeper output side and 0.082 F and 100kohm in series to the sweeper input side. 2. The IF sweeper output level should be made as low as possible within the adjustable range. 3. Since the IF sweeper is a fixed device, there is no need to adjust this sweeper. 4. Since a ceramic oscillator is used, there is no need to perform any MPX adjustment. 5. Since a fixed coil is used, there is no need to adjust the FM tracking. 6. The input and output earth systems are separated. In case of simultaneously measuring the voltage in both of the input and output systems with an electronic voltmeter for two channels, therefore, the earth should be connected particularly. 7. In the case of BTL connection amplifier, the minus terminal of speaker is not for earthing. Therefore, be sure not to connect any other earth terminal to this terminal. This system is of an OTL system.
1-20
MX-K35V
Arrangement of adjusting positions
Cassette deck mechanism (Front side)
CN308
Main board
REC/PB Head (Deck-B)
PB Head (Deck-A)
8-Pin L301
FM VT voltage measurement point Head azimuth screw (Forward side) Head azimuth screw (Forward side)
R6
AM VT voltage measurement point Head screw
L2 T1
Head screw
R3
Tape recorder section
Items Cassette Head Azimuth Alignments Measurement conditions
Antenna coil
OSC coil
Measurement method
Standard values
Adjusting positions
Test tape 1. Playback the test tape VT703 (10KHz) or equivalent. : VT703 (10kHz) 2. Adjust the head azimuth screw to obtain maximum Measurement output output and both output of L / R is in 3dB. terminal 3. Put on the screw lock paint after alignments. : Headphone Output (32-ohm loaded) or Left and Right speaker output (6-ohm loaded)
Maximum output Head azimuth screw
Adjust the head azimuth screw only when the head has been changed.
Recording tape Recording Bias 1. Insert the recording tape in deck-B. Frequency Alignment : TYPE AC-514 2. Starting the recording. Measurement output 3. Adjust the oscillation frequency to 80KHz+/-3KHz by terminal core of Oscillation coil of L301. : Erase head terminal (CN308 8-Pin)
80kHz+/-3kHz
Bias coil: L301
Use the HighImpedance Probe for Frequency counter input.
Tuner section
Items AM Tracking Alignments Measurement conditions Input signal
: 530kHz
Measurement method OSC coil adjustment
1.Set the Signal Generator signal to 530KHz the feed to Loop Antenna. 2.Receiving the signal and the adjust the OSC coil (L2) obtain the V.T is 1.40V +/-0.05V.
Standard values V.T : 1.40V+/-0.05V
Adjusting positions OSC/Antenna coil : L2
Adjust the OSC coil only when the AM coil block has been
Measurement point : Resistor R3 (AM) Resistor R6 (FM) Input signal : 603kHz
Antenna coil check or adjustment
1.Change the receiving frequency to 603KHz. 2.Adjust the Antenna coil ( L2 ) obtain maximum sensitivity. (Adjust the SSG output to out of AGC range.)
Maximum sensitivity
changed.
AM IFT Alignments
Input signal : 531kHz
1. Set the receiving frequency to 531KHz. 2. Feed the 450KHz signal to AM IF input. 3.Adjust the IFT Block T1 obtain to maximum output. (Adjust the SSG output to out of AGC range.)
Maximum output IFT (T1)
Adjust the IFT only when the IFT block has been changed.
Note: The adjustment of CD section is not required.
1-21
MX-K35V
Flow of functional operation until TOC read
Check Point
Power ON
Play Key
Slider turns REST SW ON.
Confirm that the voltage at the pin1 of CN602 is "H"\"L"\"H".
Automatic tuning of TE offset
Check that the voltage at the
Laser ON
pin9 of IC601 is + 5V?
Detection of disc
Automatic tuning of Focus offset Confirm that the Focus error S-cuve signal at the pin 16 of IC601 is approx.2Vp-p
Automatic measurement of Focus S-curve amplitude
Disc is rotated
Tracking error waveform at TOC reading pin 14 of IC601(TEO)
Approx 1.8V VREF
Approx.3sec
Focus servo ON (Tracking servo ON) Confirm the waveform of the Tracking error signal. at the pin 14 of IC601 (R617) (See fig-1)
Automatic measurement of Tracking error amplitude
Tracking Disc to be servo braked to stop on states Disc states TOC reading to rotate finishes Automatic measurement of TE amplitude and 500mv/div automatic tuning of 2ms/div Fig.1 TE balance Tracking servo off states
Automatic tuning of Tracking error balance
Automatic tuning of Focus error balance
Automatic tuning of Focus error gain
Automatic tuning of Tracking error gain
TOC reading
Confirm the eys-pattern at the lead of RFO
Play a disc
1-22
MX-K35V
Maintenance of laser pickup
(1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens with a alcohol soaked cotton swab. (2) Life of the laser diode When the life of the laser diode has expired, the following symptoms will appear. 1. The level of RF output (EFM output:ampli tude of eye pattern) will below.
Replacement of laser pickup
Turn off the power switch and,disconnect the power cord from the AC OUTLET.
Replace the pickup with a normal one.(Refer to "Removing the CD pickup" on the previous page)
Is the level of RFOUT under 1.25V 0.22Vp-p?
NO
Replace it.
Plug the power cord in,and turn the power on. At this time,check that the laser emits for about 3seconds and the objective lens moves up and down. Note: Do not observe the laser beam directly.
YES O.K Play a disc.
Check the eye-pattern.
Finish.
(3) Semi-fixed resistor on the APC PC board The semi-fixed resistor on the APC printed circuit board which is attached to the pickup is used to adjust the laser power.Since this adjustment should be performed to match the characteristics of the whole optical block, do not touch the semi-fixed resistor. If the laser power is lower than the specified value,the laser diode is almost worn out, and the laser pickup should be replaced. If the semi-fixed resistor would be adjusted when the pickup operates normally,the laser pickup may be damaged due to excessive current.
1-23
MX-K35V
Description of major ICs
TMP87CM78 (IC701) : System control microprocessor
1. Terminal layout
80 51
81
100
1
30
2. Pin function
Pin No. Symbol I/O Function Pin No. Symbol I/O Function
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37
VDD AB BIAS RPHD BC1 uRTS uDA uCLK MPX PER SD SCK REM KEY0 KEY1 KEY2 VER LVL SFTY TPA TPB VSS VASS VAREF VDD INH TEST XTI XTO VSS XIN XOUT RST uSTB PRT FCD FTU
O O O O I I/O I I O I/O O I I I I I I I I I I I I I O I O I I I O O
+5V back up supply Deck A/B select control Recording bias on/off control Deck-B head switch control Bias frequency control MPEG RTS input MPEG serial data I/O MPEG serial clock input FM stereo indicator input PLL periode output PLL serial data I/O PLL serial clock output IR remote signal input Key-0 ADC input Key-1 ADC input Key-2 ADC input Ve r s i o n s e t Level meter input Safety input Deck-A switch matrix input Deck-B switch matrix input Digita ground ADC reference ground ADC reference +5V supply +5V back up supply INH bit input Te s t m o d e / g r o u n d 3 2 . 7 6 8 k H z X ' Ta l i p u t 3 2 . 7 6 8 k H z X ' Ta l o u t p u t Digita ground 8 . 0 M H z X ' Ta l 8 . 0 M H z X ' Ta l Reset circuit MPEG strobe input Protector input CD power supply control Tu n e r p o w e r s u p p l y c o n t r o l
31
50
38 39 40 41 42 43 44 45 46 47 48 49 50 51 63 64 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
PCNT SHFT SMUT SPK LMUT ECHO AHB KARA VCK VDAT VOL+ VOLVKK G13 G1 P16 P1 DOP DCL Reservd CLS CW CCW CNTT OPSW CLSW UPSW DWSW DCNT TPSW OPN DETA DETB MOT SOLB SOLA PBM RECM
O O O O O O O O O O I I O O O O O O O O I I I I I I O I I O O O O O
System power on/off control Clock shift output System mute cotrol output Speaker mute control output Line output mute control Echo on/off control output Active bass boost control output Karaoke mode on/off control Sound processor serial clock out Sound processor serial data out Vo l u m e u p j o g s i g n a l i n p u t Vo l u m e d o w n j o g s i g n a l i n p u t -35V supply VFD grid output VFD plate output MPEG door open MPEG door close Reser ved Tr a y c l o s e c o n t r o l o u t p u t Tu r n t a b l e C W o u t p u t Tu r n t a b l e C C W o u t p u t Tu r n t a b l e s p e e d c o n t r o l Tr a y o p e n d e t e c t s w i t c h i n p u t Tr a y c l o s e d e t e c t s w i t c h i n p u t Pickup up detect switch input Pickup down detect switch input Disc count switch input Tu r n t a b l e p o s i t i o n S W i n p u t Tr a y o p e n c o n t r o l o u t p u t Ta p e - A r e a l r o t a t i o n d e t e c t o r Ta p e - B r e a l r o t a t i o n d e t e c t o r Motor on/off control Deck-B solenoide control Deck-A solenoide control Ta p e p l a y b a c k m u t i n g c o n t r o l Recording mute control
1-24
MX-K35V
ES3880FL (IC101) : MPEG decoder
1. Terminal layout
80 ~ 51
100 ~ 81 31 ~ 50
Processor Interface LA[17:0]
LD[7:0] LCS3#, LCS#[1:0] LWR# LOE#
2. Block diagram
DRAM Interface RISC Processor Huffman Decoder 2Kx32 ROM 512x32 SRAM
RAS# DA[9:0] DBUS[15:0] DOE# DWE# CAS#
DRAM
1 ~ 30
Serial Audio Interface
ACLK ATCLK AIN AOUT ARFS ATFS ARCLK
AUX[7:0]
AUX
Serial Audio Interface
64x32 ROM 32x32 SRAM Registers
MPEG Processor Video Output On Screen Display
YUV[7:0] PCLK2X PCLK VSYNC HSYNC
Screen Display
SEL_PLL[1:0] TDM TDMCLK Interface TDMDR TDMFS
TDM Interface DRAM DMA Controller
CPUCLK RESET#
Misc.
3. Pin function
Pin No. Symbol I/O Function Pin No. Symbol I/O Function
1 VDD - 3.3V power supply 2 RAS# O Row address strobe 3 DWE# O DRAM write enable 4~12 DA0~8 O DRAM multiplexed row and column address bus 13~28 DBUS0~15 I/O DRAM data bus 29 RESET# I System reset 30 VSS - Ground 31 VDD - 3.3V power supply 32~39 YUV0~7 O YUV[7:0] 8-bit video data bus 40 VSYNC I/O Vertical sync 41 HSYNC I/O Horizontal sync 42 CPUCLK I RISC and system clock input. CPUCLK is used only if SEL_PLL[1:0] = 00 to bypass PLL. 43 PCLK2X I/O Doubled 54MHz pixel clock 44 PCLK I/O 27MHz pixel clock 45~49 AUX0~4 I/O Auxiliary control pins 4:0 AUX0 and AUX1 are open collectors. 50 VSS - Ground 51 VDD - 3.3V power supply 52 AUX6 I/O Auxiliary control pins 6 53 AUX5 I/O Auxiliary control pins 5 54 AUX7 I/O Auxiliary control pins 7 55~62 LD0~7 I/O RISC interface data bus 63 LWR# O RISC interface write enable 64 LOE# O RISC interface output enable 65 LCS3# O RISC interface chip select 66 LCS1# O RISC interface chip select 67 LCS0# O RISC interface chip select 68~79 LA0~11 O RISC interface address bus 80 VSS - Ground 81 VPP - 5.0V power supply
82~87 88 89
O RISC interface address bus I/O Master clock for external audio DAC O Audio interface serial data output when selected. SEL_PLL0 I System and DSCK output clock frequency selection at reset time. The matrix below lists the available clock frequencies and their respective PLL bit settings.
LA12~17 ACLK AOUT
SEL_PLL1 0 0 1 1 SEL_PLL0 0 1 0 1 DCLK Bypass PLL (input mode) 54MHz (output mode)Default 67.5MHz (output mode) 81.0MHz (output mode)
90 91
92
93 94 95 96 97 98 99 100
ATCLK I/O Audio transmit bit clock O Audio transmit frame sync ATFS SEL_PLL1 I Refer to the description and matrix for SEL_PLL0 pin 89. O DRAM multiplexed row and column DA9 address line 9 DOE# O DRAM output enable I Audio serial data input AIN I Audio receive bit clock ARCLK I Audio receive frame sync ARFS TDMCLK I TDM serial clock I TDM serial data receive TDMDR I TDM frame sync TDMFS O DRAM column address strobe CAS# - Ground VSS
1-25
MX-K35V
ES3883F (IC102) : Companion chip
1. Terminal layout
100 ~ 81
80 ~ 51
2. Pin function
Pin No. Symbol I/O
1 ~ 30
Function Pin No. Symbol VCCAA AOR+,AORAOL-,AOL+ MIC1 MIC2 I/O Function
1 2~4 5 6 7 8 9 10 11 12
VSS NC VCC DSC_C AUX0 DSC_D0 AUX1 DSC_S AUX2
DCLK EXT_CLK
I I/O I/O I/O I I/O O I I
13 14 15 16 17 18 19 20 21 22 23
RESET_B MUTE VCC MCLK
AUX7/NFD_DI I/O
O I AUX8/NFD_CLK I/O I TWS SPLL_OUT O AUX9/SQSO I/O I TSD I TBCK O RWS I SEL_PLL1
Ground No connect Voltage supply, 5V Clock for programming to access internal registers Servo forward or general-purpose I/O Data for programming to access internal registers Servo reverse or general-purpose I/O Strobe for programming to access internal registers Servo LDON or general-purpose I/O DCLK is the MPEG decoder clock. EXT_CLK is the external clock. EXT_CLK is an input during bypass PLL mode. Video reset (active-low) Servo BRKM/sense or general-purpose I/O / VFD_DI Audio mute Voltage supply, 5V Audio master clock Servo mute/open or general-purpose I/O / VFD_CLK TWS is the transmit audio frame sync. SPLL_OUT is the select PLL output. Servo SQSO or general-purpose I/O Transmit audio data input Transmit audio bit clock RWS is the receive audio frame sync. SEL_PLL[1:0] select the PLL clock frequency for the DCLK output.
SEL_PLL1 0 0 1 1 SEL_PLL0 0 1 0 1 DCLK Bypass PLL (input mode) 27MHz (output mode) 32.4MHz (output mode) 40.5MHz (output mode)
31 ~ 50
44 45,46 47,48 49 50 51 52
VSSAA VREF
I O O I I I
53
VREFM
I
54 55 56,57 58 59,60 61
RSET COMP VSSAV CDAC VCCAV YDAC
I I O O
24 RSTOUT_B 25,26 VSS 27~30 NC 31 VSS 32 VCC 33 RSD SEL_PLL0
O O I
34 35 36 37
AUX10/SQCK I/O
AUX11/IRQ I/O
AUX12/C2PO I/O
RBCK SER_IN
O I
38 39 40 41 42
AUX13/SP I/O AUX14/SOSI I/O AUX15/IR VSSAA VCM
I/O I
43
VREFP
I
Reset output (active-low) Ground No connect Ground 82 Voltage supply, 5V 83 RSD is the receive audio data input. SEL_PLL0 and SEL_PLL1 select the PLL clock 84 frequency for the DCLK output. Refer to the 85 table in the definition for pin 23. Servo SQCK or general-purpose I/O ES3880 IRQ or interrupt output or general-purpose I/O 86~89 CD C2PO or interrupt input or general-purpose I/O 90 91 RBCK is the receive audio bit clock. 92 SER_IN is the serial input DSC mode: 93 0 = Parallel DSC mode 1 = Serial DSC mode 94 Serial interrupt/CD-mute or general-purpose I/O 95 Servo SCOR (SOSI), interrupt input, or general-purpose I/O 96 Interrupt input or general-purpose I/O 97 Audio analog ground ADC common mode reference (CMR) buffer output. CMR is approximately 2.25V. Bypass to analog ground 98 99 with 47uF electrolytic in paralell with 0.1uF. DAC and ADC maximum reference. Bypass to video 100 CMR (VCMR) with 10uF in parallel with 0.1uF.
62,63 VSSAV O 64 VDAC I 65 ACAP 66 VCC 67 AUX6/VFD_DO I/O I/O 68 AUX5 I/O 69 AUX4 I/O 70 AUX3 O 71 XOUT 72 VSS 73 VCC I 74 XIN 75 VSS 76 NC 77 VSS 78 VCC I/O 79 PCLK 80 2XPCLK I/O 81 DSC_D7 I/O
HSYNC_B DSC_D6 VSYNC_B DSC_D5 YUV7~4 VCC VSS YUV3 DSC_D4 YUV2 DSC_D3 YUV1 DSC_D2 YUV0 DSC_D1 VSS
O I/O O I/O I I I/O I I/O I I/O I I/O -
Analog VCC, 5V Right channel output Left channel output Microphone input 1 Microphone input 2 Audio analog ground Internal resister divider generates CMR voltage. Bypass to analog ground with 0.1uF. DAC and ADC minimum reference. Bypass to VCMR with 10uF in parallel with 0.1uF. Full-scale DAC current adjustment Compensation pin Video analog ground Modulated chrominance output Video VCC, 5V Y luminance data bus for screen video port Video analog ground Composite video output Audio CAP Voltage supply, 5V Servo XLAT or general-purpose I/O / VFD_DO Servo data or general-purpose I/O Servo CCW/close or general-purpose I/O Servo CW/limit or general-purpose I/O Crystal output Ground Voltage supply, 5V 27MHz crystal input Ground No connect Ground Voltage supply, 5V 13.5MHz pixel clock 27MHz(2 times pixel clock) Data for programming to access internal registers Horizontal sync (active-low) Data for programming to access internal registers Vertical sync (active-low) Data for programming to access internal registers YUV data bus for screen video port Voltage supply, 5V Ground YUV data bus for screen video port Data for programming to access internal registers YUV data bus for screen video port Data for programming to access internal registers YUV data bus for screen video port Data for programming to access internal registers YUV data bus for screen video port Data for programming to access internal registers Ground
1-26
MX-K35V BA15218 / BA15218F (IC102 / IC852) : Dual operational amplifier
1. Terminal layout & block diagram
OUT1 1 -IN1 2
8 Vcc 7 OUT2
1
+IN1 3 6 -IN2
2
G 4 5 +IN2
BA3837 (IC103) : MIC Mixer
1. Terminal layout & block diagram
VCC 1
LOGIC
2. Pin function
16 C
Pin No. Symbol I/O 1 VCC MIC LOUT FK TK LIN BIAS GND RIN LP LP LP ROUT A B C I O I I I O O O O I I I Power supply 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Function Microphone mixing input Channel L output Non connect Non connect Channel L input Signal bias Connect to GND Channel R input Connects to LPF time constant element Connects to LPF time constant element LPF outpout Channel R output Mode select input A Mode select input B Mode select input C
MIC 2
15 B
+ - +
LOUT 3
14 A
FK 4
SW2
13 ROUT
- +
TK
5
L
SW1
L+R L-R
+
12 LP
R
LIN 6
11 LP
+
+ -
BIAS 7
10 LP
+
GND 8
9
RIN
BU9253FS (IC851) : Low pass filter & echo mixer
1. Terminal layout & block diagram 2. Pin function
Pin No. Symbol I/O
COUNTER
- +
Function Connect GND Echo level control Analog part DC bias DA side integrator output DA side integrator intput DA side LPF input DA side LPF output Mix AMP output for original tone& echo tone Mix AMP input pin for original tone AD side LPF input AD side LPF output AD side integrator output AD side integrator input Power supply Mute control signal input CR pin for oscillator
1
OSC
16 CR 15 MUTE 14 VCC 13 ADINTI
GND ECHO VR BIAS
I -
GND ECHO VR BIAS DAINTO DAINTI DALPFI DALPFO MIXO
1 2 3 4
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
DAINTO O DAINTI I DALPFI I DALPFO O MIXO O MIXI ADLPFI I I
SRAM
D/A
A/D
5 6 7
12 ADINTO 11 ADLPFO
MIX
8
-+
10 ADLPFI 9 MIXI
-+
ADLPFO O ADINTO O ADINTI VCC MUTE CR I I -
1-27
MX-K35V
PST9119 (IC703) : Reset IC
1. Terminal layout 2. Block diagram
VDD
1 2 3 OUT VDD VSS
OUT
1 2 3 VSS
STK402-070 (IC151) : 2-ch audio power amplifier
1. Terminal layout 2. Block diagram
VCC PRE-VCC
IN 1 NF 1
SUB G
VSS
BIAS
PRE-VSS
OUT 1OUT 1+
OUT 2+
TA2092N (IC603) : Power driver IC for CD
1. Terminal layout &Block diagram
PWGND 1 OUT(-)1 2 PVCC1 3 OUT(+)1 4 VIN1 5 VRI 6 VCI 7 VIN2 8 OUT(+)2 9 PVCC2 10 OUT(-)2 11 PWGND 12
24 PWGND 23 OUT(-)4 22 PVCC4 21 OUT(+)4 20 VIN4 19 SVCC 18 SGND 17 VIN3 16 OUT(+)3 15 PVCC3 14 OUT(-)3 13 PWGND
2. Pin function
PIN No. Symbol I/O 1 PWGND - Power ground 2 OUT(-)1 O Inverted output for CH1 3 PVCC1 Function PIN No. Symbol I/O 13 PWGND - Power ground 14 OUT(-)3 O Inverted output for CH3 Function
- Supply terminal of output stage for CH1 15 PVCC3 - Supply terminal of output stage for CH3 16 OUT(+)3 O Non-inverted output for CH3 17 VIN3 I Input for CH3 - Supply terminal of small signal ground - Small signal ground I Input for CH4
4 OUT(+)1 O Non-inverted output for CH1 5 6 7 8 VIN1 VRI VCI VIN2 I Input for CH1 I Input reference voltage O Output reference voltage I Input for CH2
OUT 2-
18 SGND 19 SVCC 20 VIN4
9 OUT(+)2 O Non-inverted output for CH2 10 PVCC2
21 OUT(+)4 O Non-inverted output for CH4
- Supply terminal of output stage for CH2 22 PVCC4 - Supply terminal of output stage for CH4 23 OUT(-)4 O Inverted output for CH4 24 PWGND - Power ground
11 OUT(-)2 O Inverted output for CH2 12 PWGND - Power ground
1-28
NF 2 IN 2
MX-K35V TA2153FN (IC601) : RF amplifier for digital servo
1. Terminal layout
VCC RFAGC GMAD FNI FPI TPI TNI MDI LDO SEL TEB 2VRO TEN TEO SBAD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 RFN2 GND RFO AGCIN GVSW RFGO RFRPIN PKC RFCT STC RFRP VRO SEB FEN FEO
2. Block diagram
RFRPIN AGCIN GVSW RFGO RFRP RFCT RFN2 GND VRO RFO FEM PKC FEO SEB STC
30
+ -
29
28
27
AGC Amp.
26
25
24
23
22
+ -
21
20
19
+ -
18
17
+ -
16
PEAK BOTTOM
+ -
+ -
+ -
+ + + SW3
+ -
+ -
SW2
SW1
3 STATE DET.
+ -
+ -
I-I
1
VCC
2
RFAGC
3
GMAD
4
FNI
5
FPI
6
TPI
7
TNI
I-I
8
MDI
9
LDO
10
SEL
11
TEB
12
2VRO
13
TEN
14
TEO
+ -
3. Pin function
PIN No. Symbol I/O 1 2 3 4 5 6 7 8 9 10
Function
VCC - Power supply input terminal RFAGC I RF amplitude adjustment control signal input terminal. Controlled by 3-PWM signals. (PWM carrier = 88.2kHz) GMAD I Open loop gain adjustment terminal for AGC amplifier I Main beam I-V amplifier input terminal FNI I Main beam I-V amplifier input terminal FPI I Sub beam I-V amplifier input terminal TPI I Sub beam I-V amplifier input terminal TNI I Monitor photo diode amplifier input terminal MDI O Laser diode amplifier input terminal LDO I Laser diode control signal input terminal and APC circuit ON/OFF control sugnal terminal SEL SEL level APC circuit LDO Detect frequency GND OFF Connected to Vcc through resistor (1kohm) Low Hiz ON Control signal output Low Vcc ON Control signal output High TEB 2VRO TEN TEO SBAD FEO FEN SEB I O I O O O I I Tracking error balance adjustment signal input terminal. Controlled by 3-PWM signals. (PWM carrier = 88.2kHz) Reference voltage (2VRO) output terminal 2RVO = 4.2V when Vcc = 5V TE amplifier negative input terminal TE error signal output terminal Sub beam adder signal output terminal Focus error signal output terminal FE amplifier negative input terminal RFRP output circuit switching terminal SEL level Bottom detection Peak detection GND ON ON Vcc OFF ON Reference signal (VRO) output terminal Track count signal output terminal Time constant adjustment terminal for bottom detection RFRP signal center level output terminal Time constant adjustment terminal for peak detection Input terminal for track count signal output amplifier Output terminal for RF signal amplitude adjustment amplifier Amplifier (AGC, FE, TE) gain switching terminal GVSW Mode GND CD-RW Hiz Normal Vcc Normal Input terminal for RF signal amplitude adjustment amplifier Output terminal RF signal amplifier Ground terminal Input terminal for RF signal amplifier
11 12 13 14 15 16 17 18
19 20 21 22 23 24 25 26
VRO RFRP STC RFCT PKC RFRPIN RFGO GVSW
O O I O I I O I
27 28 29 30
AGCIN RFO GND RFN2
I O I
SBAD
-
+
15
1-29
MX-K35V
TA8189 (IC401) : REC/PB amplifier
REC_OUT2 PREOUT2
1. Terminal layout
2. Block diagram
EQ2 NF2
CH1_A CH1_B NF1 EQ1 PREOUT1 MIX_OUT GND1 EQSW REC_OUT1 REC_NF1 REC_IN1 GND
1 2 3 4 5 6 7 8 9 10 11 12
24 23 22 21 20 19 18 17 16 15 14 13
CH2_A CH2_B NF2 EQ2 PREOUT2 A/B_SW VCC CG REC_OUT2 REC_NF2 REC_IN2 ALC
22 CH2_B 23
21
20
19
18
17
16 Ch2 +
15
REC_NF2
A/B_SW
VCC
CG
A/B Ch2 +
14 REC_IN2
Vref1
Iref
CH2_A 24
Vref2
13 ALC ALC
CH1_A
1
+ Ch1 + Ch1 9 10
12 GND
M/N CH1_B 2 3 4 5 6 7 8
11 REC_IN1
EQ1
PREOUT1
MIX_OUT
EQSW
NF1
GND1
3. Pin function
Pin No. 1 Symbol CH1_A I/O I Function Input for playback amp. (Ch1): A cassette (PB) 2 CH1_B I Input for playback amp. (Ch1): B cassette (REC/PB) 3 4 5 6 7 NF1 EQ1 PREOUT1 MIX_OUT GND1 I O O O NF terminal for playback amp. Metal output for playback amp. Output terminal for playback amp. Mixing output Ground 15 16 17 18 19 14 Pin No. 13
REC_OUT1
REC_NF1
Symbol ALC
I/O I ALC filter terminal
Function
REC_IN2
I
Input for recording amp.
REC_NF2 REC_OUT2 CG VCC A/B_SW
I O O I
NF terminal for recording amp. Output for recording amp. Charge detection terminal Power supply terminal REC amp. Select switch (A cassette/B cassette)
8 9 10 11
EQSW REC_OUT1 REC_NF1 REC_IN1
I O I I
Metal/Normal mode select switch Output for recording amp. NF terminal for recording amp. Input for recording amp.
20 21 22 23
PREOUT2 EQ2 NF2 CH2_B
O O I I
Output terminal for playback amp. Metal output for playback amp. NF terminal for playback amp. Input for playback amp. (Ch2): B cassette (REC/PB)
12
GND1
-
Ground terminal
24
CH2_A
I
Input for playback amp. (Ch2): A cassette (PB)
TA8409S (IC604, IC605) : Motor driver
1. Terminal layout 2. Truth table
INPUT IN1 0
1 2 3 4 5 6 7 8 9
OUTPUT OUT1 OUT2
MODE MOTOR STOP
IN2 0 0 1 1
OUT2
NC
OUT1
IN2
VR
VS
VCC
GND
IN1
1 0 1
H L L
L H L
CW/CCW CCW/CW BRAKE
1-30
MX-K35V
TA2104N (IC1) : 1chip AM/FM, MPX tuner system
1. Terminal layout
RFGND FM_RFIN AM_FIL MIX_OUT VCC AM_IFIN FM_IFIN GND AGC QUAD R_OUT L_OUT 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 FM_RFOUT RFVCC AM_RFIN FM_OSC AM_OSC OSC_OUT ST_IND IF_REQ DET_OUT MPX_IN LPF2/M_ST LPF1/BAND
2. Pin function
PIN No. 1 2 3 4 5 6 7 8 9 10 11 12 Symbol I/O PIN No. Symbol - Ground terminal for RF 13 LPF1/BAND I Input of FMRF signal 14 LPF2/M_ST I AM low frequency cut 15 MPX_IN O Output of FM/AM RF mix 16 DET_OUT - Power supply terminal 17 IF_REQ I Input of AMIF signal 18 ST_IND I Input of FMIF signal 19 OSC_OUT - Ground terminal 20 AM_OSC I AGC voltage input terminal 21 FM_OSC I OSC terminal for FM DET. 22 AM_RFIN O Output R-channel 23 RFVCC O Output L-channel 24 FM_RFOUT Function I/O Function
RFGND FM_RFIN AM_FIL MIX_OUT VCC AM_IFIN FM_IFIN GND AGC QUAD R_OUT L_OUT
I I I O O O O I O
FM/AM switch Stereo/monoral switch Multiplex signal input AM/FM detection output IF out/REQ out Stereo indicator output PLL data bus for FM or AM AM local oscillation circuit FM local oscillation circuit Input of AMRF signal Power supply teminal for RF Output of FMRF signal
TC9257P (IC2) : PLL frequency synthesizer
1. Terminal layout
XT XT PERIOD CLOCK DATA OT-1 OT-2 OT-3 OT-4 I/O-5 / CLK 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 DO2 DO1 I/O-7 I/O-8 / NF1 I/O-9 / NF2 GND FMIN AMIN VDD I/O-6
2. Pin function
PIN No. 1 2 3 4 5 6 7 8 9 10 11 12 Symbol I/O Function PIN No. Symbol I/O 13 AMIN I 14 FMIN I GND 15 I/O-9 16 I/O NF2 I Function Programmable counter input Programmable counter input Ground pin General-purpose I/O port General-purpose counter frequency measurement input General-purpose I/O port General-purpose counter frequency measurement input General-purpose I/O port Phase comparator output Phase comparator output
XT I Crystal oscillator pins XT O Crystal oscillator pins PERIOD I Period signal input CLOCK I Clock signal input DATA I/O Serial data input/output OT-1 O General-purpose output port OT-2 O General-purpose output port OT-3 O General-purpose output port OT-4 O General-purpose output port I/O-5/CLK I/O General-purpose I/O port I/O-6 I/O General-purpose I/O port VDD - Power supply pin
17 18 19 20
I/O-8 NF1 I/O-7 DO1 DO2
I/O I I/O O O
3. Block diagram
VDD FML AMP FMIN PSC 2 MODULUS PRESCALER HF 12bit PROGRAMMABLE COUNTER FM XT XT MODE LF 4 OSC CIRCUIT REFERENCE COUNTER 15 1ms OSC 24bit REGISTER 4 UNLOCK OT4 12 MAX 4bit SWALLOW COUNTER GND
12
POWER ON RESET RESET
PHASE COMPARATOR
15
14 13 2 1
1/2 FMH
AMIN
TRI-STATE BUFFER
19
DO1
TRI-STATE BUFFER
20
DO2
DATA CLOCK
5 4
4 ADDRESS DECODER
24bit SHIFT REGISTER TEST 24 22
I/O PORT
5
10 11
I/O-5/CLK I/O-6
5
PERIOD
3
24bit REGISTER 4 4
10
16
AMP
I/O-9/NF2 I/O-8/NF1 I/O-7
20bit BINARY COUNTER OUTPUT PORT OT-4 XT 1ms UNIVERSAL COUNTER CONTROL GATE AMP
17 18
6
7
8
9
OT-1 OT-3 OT-2 OT-4
1-31
MX-K35V TC9462F (IC602) : Digital servo single chip processor
1. Terminal layout
80 81 51 50 1 30 I/O 31 Function
2. Pin function
Pin No. Symbol Pin No. Symbol I/O Function
1 2 3
TEST0 HSO UHSO
100
I Te s t m o d e t e r m i n a l . N o r m a l l y, k e e p a t o p e n O Playback speed mode flag output ter minal. O U H S O H S O P L AY B A C K S P E E D H H Normal H L 2 times L H 4 times L L O Subcode Q data emphasis flag output terminal. Emphasis ON at "H" level and OFF at "L" level. The output polarity can inver t by command. O Channel clock output terminal. (44.1kHz) L-ch at "L" level and R-ch at "H" level. The output polarity can inver t by command. - Digital ground terminal. O Bit clock output terminal. (1.4112MHz) O Audio data output ter minal. O Digital data output terminal. O Buffer memor y over signal output ter minal. Over at "H" level. O Correction flag output terminal. At "H" level, AOUT output is made to correction impossibility by C2 correction processing. O Subcode Q data CRCC check adjusting result output terminal. The adjusting result is OK at "H" level. I/O S u b c o d e P W d a t a r e a d o u t c l o c k i n p u t / o u t p u t terminal. This terminal can select by command bit. - Digital power supply voltage terminal. - Digital ground terminal. O Subcode P W data output terminal. O Playback frame sync signal output ter minal. O Subcode block sync signal output terminal. O Processor status signal readout clock output terminal. O Processor status signal output terminal. O Correction frame clock output terminal. (7.35kHz) O Internal signal (DSP internal flag and PLL clock) output terminal. Selected by command. This ter minal output the text data with serial by command.
23 24
VDD TESIO0
I
25 26 27 28 29 30
P2VREF HSSW ZDET PDO TMAXS TMAX
O O O O O
4
EMPH
5
LRCK
6 7 8 9 10 11
VSS BCK AOUT DOUT MBOV IPF
Digital power supply voltage terminal. Te s t i n p u t / o u t p u t t e r m i n a l . N o r m a l l y, k e e p a t "L" level. The ter minal that inputted the clock for read of text data by command. PLL double reference voltage supply ter minal. 2 / 4 t i m e s s p e e d a t " V REF" vo l t a g e . 1 bit DA conver ter zero detect flag output terminal. Phase difference signal output ter minal of EFM signal and PLCK signal. TMAX detection result output terminal. Selected by command bit (TMPS). TMAX detection result output terminal. Selected by command bit (TMPS). D I F F E R E N C E R E S U LT TMAX OUTPUT Longer than fixed freq. " P 2 V REF" Shor ter than fixed freq. "Vss" Within the fixed freq. "HiZ" LPF amplifier inver ting input ter minal for PLL. LPF amplifier output ter minal for PLL. PLL reference voltage supply ter minal. VCO center frequency reference level ter minal. N o r m a l l y, k e e p a t " P V R E F " l e v e l . VCO filter terminal. Analog ground terminal. Data slice level output ter minal. RF signal input terminal. Analog power supply voltage terminal. RFRP signal center level input ter minal. RFRP zero cross input terminal. RF ripple signal input terminal. Focus error signal input ter minal. Sub-beam adder signal input terminal. Te s t i n p u t t e r m i n a l . N o r m a l l y, k e e p a t " V R E F " level. Tr a c k i n g e r r o r s i g n a l i n p u t t e r m i n a l . Ta k e i n a t t r a c k i n g s e r v o o n . Tr a c k i n g e r r o r z e r o c r o s s i n p u t t e r m i n a l . Focus ser vo equalizer output ter minal. Tr a c k i n g s e r v o e q u a l i z e r o u t p u t t e r m i n a l . Analog reference voltage supply ter minal.
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
LPFN LPFO PVREF VCOREF VCOF AVSS SLCO RFI AVDD REFCT RFZI RFRP FEI SBAD TSIN TEI TEZI FDO TRO VREF
I O I O O I I I I I I I I I O O -
12
SBOK
13
CLCK
14 15 16 17 18 19 20 21 22
VDD VSS DATA SFSY SBSY SPCK SPDA COFS MONIT
1-32
MX-K35V
Pin No. Symbol I/O Function Pin No. Symbol I/O Function
51 52 53 54 55 56 57
RFGC TEBC FMO FVO DMO 2VREF SEL
58
FLGA
59
FLGB
60
FLGC
61
FLGD
62 63 64 65 66 67
VDD VSS IO0 IO1 IO2 IO3
68
DMOUT
69 70
CKSE DACT
O RF amplitude adjustment control signal output terminal. O Tr a c k i n g b a l a n c e c o n t r o l s i g n a l o u t p u t t e r m i n a l . O Feed equalizer output ter minal. O Speed error signal or feed search equlizer output terminal. O Disk equalizer output terminal. (PWM carrier= 8 8 . 2 k H z f o r D S P, S y n c h r o n i z e t o P X O ) - Analog double reference voltage supply terminal. O APC circuit ON/OFF indication signal output terminal. At the laser on time, UHF = L at "HiZ" level and UHF = H at "H" level. O Exter mal flag output ter minal for inter nal signal. Can select signal from TEZC, FOON, FOK and RFZC by command. O Exter mal flag output ter minal for inter nal s i g n a l . C a n s e l e c t s i g n a l f r o m D F C T, F O O N , FMON and RFZC by command. O Exter mal flag output ter minal for inter nal signal. Can select signal from TRON, TRSR, FOK and SRCH by command. O Exter mal flag output ter minal for inter nal signal. Can select signal from TRON, DMON, HYS and SHC by command. - Digital power supply voltage terminal. - Digital ground terminal. I/O G e n e r a l I / O t e r m i n a l . C a n c h a n g e o v e r i n p u t I/O p o r t o r o u t p u t p o r t b y c o m m a n d . A t t h e i n p u t I/O m o d e t i m e c a n r e a d o u t a s t a t e o f t e r m i n a l ( H / L ) I/O b y r e a d c o m m a n d . A t t h e o u t p u t m o d e t i m e c a n control a state of terminal (H/L/HiZ) by command. I This terminal controls IO0 IO3 terminal. At "L" level time, IO0, 1 out feed equalizer signal of 2-state PWM, IO2,3 out disk equalizer signal of 2-state PWM. I N o r m a l l y, k e e p a t o p e n . I D A C t e s t m o d e t e r m i n a l . N o r m a l l y, k e e p a t open.
71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97
TESIN TESIO1 VSS PXI PXO VDD XVSS XI XO XVDD DVSR RO DVDD DVR LO DVSL TEST1 TEST2 TEST3 BUS0 BUS1 BUS2 BUS3 VDD VSS BUCK CCE
I I I O I O O O I I I I/O I/O I/O I/O I I
Te s t i n p u t t e r m i n a l . N o r m a l l y, k e e p a t " L " l e v e l . Te s t i n p u t / o u t p u t t e r m i n a l . N o r m a l l y, k e e p a t "L" level. Digital ground terminal. Cr ystal oscillator connecting input ter minal for D S P. N o r m a l l y, k e e p a t " L " l e v e l . Crystal oscillator connecting output terminal f o r D S P. Digital power supply voltage terminal. Oscillator ground ter minal for system clock. Cr ystal oscillator connecting input ter minal for system clock. Crystal oscillator connecting output terminal for system clock. Oscillator power supply voltage ter minal for system clock. A n a l o g g r o u n d t e r m i n a l f o r D A c o n v e r t e r. ( R - c h ) R channel data forward output ter minal. Analog supply voltage ter minal for DA c o n v e r t e r. R e f e r e n c e v o l t a g e t e r m i n a l f o r D A c o n v e r t e r. L channel data forward output ter minal. A n a l o g g r o u n d t e r m i n a l f o r D A c o n v e r t e r. ( L - c h ) Te s t m o d e t e r m i n a l . N o r m a l , k e e p a t o p e n . Te s t m o d e t e r m i n a l . N o r m a l , k e e p a t o p e n . Te s t m o d e t e r m i n a l . N o r m a l , k e e p a t o p e n . Micon interface data input/output ter minal.
98 99 100
TEST4 TSMOD RST
I I I
Digital power supply voltage terminal. Digital ground terminal. Micon interface clock input ter minal. Command and data sending/receiving chip enable signal input terminal. The bus line becomes active at "L" level. Te s t m o d e t e r m i n a l . N o r m a l , k e e p a t o p e n . Local test mode selection terminal. Reset signal input ter minal. Reset at "L" level.
1-33
MX-K35V
TDA7440D (IC101) : Audio processor
1. Terminal layout
RIN3 RIN2 RIN1 LIN1 LIN2 LIN3 LIN4 MUXO-L IN(L) MUXO-R IN(R) BIN(R) BOUT(R) BIN(L)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15
2. Block diagram
MUXO-L IN(L) TRE(L)
18
BIN(L)
14 RB
BOUT(L)
15
RIN4 LOUT ROUT AGND VS CREF SDA SCL DGND TRE(R) TRE(L) PS1 LP BOUT(L)
LIN1
4 100K
8
9
LIN2
5 100K
LIN3
6 100K
G
VOLUME
TREBLE
BASS
SPKR ATT LEFT
27
LOUT
LIN4
7 100K 0/30dB 2dB STEP 100K I2CBUS DECODER + LATCHES
21 22 20
RIN1
3
SCL SDA DGND
RIN2
2 100K SPKR ATT RIGHT VREF 100K 24 INPUT MULTIPLEXER + GAIN 10 11 19 12 SUPPLY RB 13 23 25 26
G
VOLUME
TREBLE
BASS
ROUT
RIN3
1
RIN4
28 100K
VS AGND
MUXO-R IN(R)
TRE(R)
BIN(R)
BOUT(R)
CREF
4C16256 (IC103) : 4MB EDO-RAM
1. Terminal layout
VCC D0 D1 D2 D3 VCC D4 D5 D6 D7 NC NC WE RAS NC A0 A1 A2 A3 VCC 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 GND D15 D14 D13 D12 GND D11 D10 D9 D8 NC CASL CASH OE A8 A7 A6 A5 A4 GND
2. Pin function
PIN No. 1,6,20 2~5,7~10, 31~34,36~39 11,12,15,30 13 14 16~19,22~26 21,35,40 27 28 29 Symbol I/O Function VCC - Power supply terminal D0~D15 I/O Data input/output NC WE RAS A0~A8 GND OE CASH CASL I I I I I I Not used Write enable terminal Row address strobe terminal Address input Ground teminal Output enable terminal Upper column address strobe terminal Lower column address strobe terminal
27C020 (IC104) : 2MB PROM
1. Terminal layout
VPP A16 A15 A12 A7 A6 A5 A4 A3 A2 A1 A0 D0 D1 D2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 VCC PGM A17 A14 A13 A8 A9 A11 OE A10 CE D7 D6 D5 D4 D3
2. Pin function
PIN No. Symbol I/O Function VPP 1 - Power supply terminal A16,A15,A12,A7~A0 2~12 I Address input D0~D2 13~15 I/O Data input/output GND 16 - Ground terminal D3~D7 17~21 I/O Data input/output CE 22 I Chip enable terminal A10 23 I Address input OE 24 I Output enable teminal 25~30 A11,A9,A8,A13,A14,A17 I Address input PGM 31 I Program strobe VCC 32 - Power supply terminal
1-34
MX-K35V
Wiring connections
Cassette deck main motor Card wire Cassette mechanism + Card wire
Control/FL board
Color codes are shown below. 1 2 3 4 5 6 7 8 9 0 Brown Red Orange Yellow Green Blue Violet Gray White Black
Cassette board
+
-
1
3-5322-018-01-07
1
A P.B. head bottom side
B REC/P.B. head bottom side
CN702 1 Card wire
0 9 2
9 2 4 9 6 2
A
1 CN701 1 FW701
FW852 3-5305-028-01-07 1
3-5315-017-01-07 2 0 9 1 3-5316-010-01-07
2 9 0 2 6 0 4 9 Parallel wire
L2
CN306 L301 CN308 CN307 1 CN302 1
3-5302-010-01-07
Spindle motor
FW701
FW702-2 1
CD pickup B Feed motor
T1 1 CN601
1
Switch board
3-5322-018-01-07
CN301
Main board
CD pickup unit 4 6 1 Card wire CN606
1
FW702-1
C1117
Video & CD board
1 1 1 CN1101 CN602 1
CN305 CN303 1 CN604 1 CN603 1
Active bass ex. switch board
3-5311-027-01-07
3-5400-569-01-00 3-5325-030-01-07 Card wire
6 4 Card wire 3-5304-037-01-07
9 9/2 9/0 9/4 9/6 9 9/2
3-5400-593-01-00
Head phone board
1
AC input
W608 1
Table pos. board
9/2 9
9/0 9/4 9/6 9 9/2
Voltage selector board
FW1051
IC151 POWER IC 8 1
Tray motor 3-5400-538-01-00
1
1 W603 W606
3-5311-019-01-07
0 1 6 6 1 2 3 4
1
CASS. GND
J31 B 1
1 CN903
3-5305-030-01-07
Power amplifier board
3-5303-018-01-07
Pickup switch board
1
Parallel wire
1
8
CN951A
CN951B
CN901 1
1
Turn table motor board
CN605 1
1
3-5302-012-02-07
CN902A CN902B CN902C
FW951
TB901 TB902
A
0
Tray switch board
1
3-5309-019-01-07
TRANS 1
Parallel wire
W607
Disc count board
Power transformer board
W606
Turn table motor
W608 W607
1
3-5309-020-02-07
Microphone amplifier board
1 3-5400-594-01-00
1
0
3-5400-595-01-00
FL tube
CN703
+
1-35
MX-K35V
Block diagrams
Main
FM/AM Ant. To Mic/Ech