JVC MX-K35V Page 29 Service Manual Download | Manualshive

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MX-K35V

1-29

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10
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30
29
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26
25
24
23
22
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VCC

RFAGC

GMAD

FNI

FPI
TPI

TNI

MDI

LDO

SEL

TEB

2VRO

TEN

TEO

SBAD

RFN2
GND
RFO
AGCIN
GVSW
RFGO
RFRPIN
PKC
RFCT
STC
RFRP
VRO
SEB
FEN
FEO

TA2153FN (IC601) : RF amplifier for digital servo

1. Terminal layout

3. Pin function

2. Block diagram

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

VCC

RFAGC

GMAD

FNI
FPI
TPI
TNI

MDI

LDO

SEL

TEB

2VRO

TEN
TEO

SBAD

FEO
FEN
SEB

VRO

RFRP

STC

RFCT

PKC

RFRPIN

RFGO

GVSW

AGCIN

RFO

GND

RFN2

Power supply input terminal
RF amplitude adjustment control signal input terminal. Controlled by 3-PWM signals. (PWM carrier = 88.2kHz)
Open loop gain adjustment terminal for AGC amplifier
Main beam I-V amplifier input terminal
Main beam I-V amplifier input terminal
Sub beam I-V amplifier input terminal
Sub beam I-V amplifier input terminal
Monitor photo diode amplifier input terminal
Laser diode amplifier input terminal
Laser diode control signal input terminal and APC circuit ON/OFF control sugnal terminal
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

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

PIN No. Symbol

-
I
I
I
I
I
I
I

O

I

I

O

I

O
O
O

I
I

O
O

I

O

I
I

O

I

I

O

-
I

I/O

1

VCC

2

RFAGC

3

GMAD

4

FNI

5

FPI

6

TPI

7

TNI

8

MDI

9

LDO

10

SEL

11

TEB

12

2VRO

13

TEN

14

TEO

15

SBAD

30

RFN2

29

GND

28

RFO

27

AGCIN

26

GVSW

25

RFGO

24

RFRPIN

23

PKC

22

RFCT

21

STC

20

RFRP

19

VRO

18

SEB

17

FEM

16

FEO

AGC Amp.

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

I-I

I-I

3 STATE

DET.

SW2

SW3

SW1

PEAK

BOTTOM

+

-

+

-

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Summary of Contents for MX-K35V

Page 1: ...EC START CD CLOCK TIMER TAPE A B DISC SKIP EJECT PLAY A REC PLAY B CD CONTROL C D 1 C D 2 C D 3 CD R RW PLAYBACK FULL LOGIC CONTROL CD SYNCHRO RECORDING EJECT R O C K CLASSIC P O P V O LUME SOUND MODE MAX MIN MIC RM SMXK35V REMOTE CONTROL 1 2 3 4 5 6 7 8 9 10 10 FM MODE FM AM AUX SLEEP STANDBY ON SOUND MODE KARAOKE RETURN STILL NEXT V INTRO HIGHLIGHT PREV ON SCREEN KEY CONTROL MPX ACTIVE BASS EX F...

Page 2: ...uct 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 expose...

Page 3: ... 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 ...

Page 4: ...synlig 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 uts...

Page 5: ...rd 1 13 Removing the microphone amplifier board 1 14 Removing the control FL board 1 14 Removing the switch board and active bass ex switch board 1 15 Removing the cassette deck main motor and replacing the main belts 1 16 Removing the leaf switches of the cassette deck mechanism 1 16 Removing the cassette deck heads 1 17 Chassis unit 1 17 Removing the Video CD board 1 17 Removing the 3 pin regula...

Page 6: ...sink cover to the rear panel Pull the heat sink cover outward Remove the two screws B from the bracket that retains the power IC Remove the solder fixing the power IC Replacing the power IC See Fig 2 to 4 Fig 4 Fig 1 Fig 3 Fig 2 Disassembly of the main blocks of this set Replacement of the fuses and the power IC B A Heat sink Power amplifier board Fuse F951 2 5A 250V Fuse F953 1 25A 250V Power tra...

Page 7: ...e two screws C and four screws D that retain the top cover from the rear of the body Remove the four screws E retain the top cover from the two sides of the body Remove the top cover from the body by lifting it toward the rear Fig 6 C D D Top cover Front panel assembly E E ...

Page 8: ...ch is located below the CD changer unit Disconnect the microphone amplifier wire from the connector CN306 on the main board Disconnect the card wires from the connectors CN301 CN302 CN305 and CN606 on the main board Disconnect the parallel wires from the connectors CN902A CN902B and CN902C on the power amplifier board From the rear of the set remove the two screws F retaining the CD changer unit t...

Page 9: ...ove the two screws H retaining the front panel assembly onto the bottom of the body Remove the screw J retaining the cassette deck mechanism and then remove the GND lug b that comes from the power amplifier board Disengage the claws c on both sides at the bottom of the front panel assembly and then remove the assembly Removing the front panel assembly See Fig 11 and 12 Fig 12 H J Power amplifier b...

Page 10: ...ith washer L retain the main board should be removed Remove the main board by pulling it toward the side where the CN601 is located Using solder short the CD pickup to connect to short round Disconnect the card wire from the connector CN601 on the main board and then remove the main board Removing the main board See Fig 13 and 14 Fig 14 Disassembly of units and assembly inside this set Caution See...

Page 11: ...mbly Remove the two screws with the washer M retaining the CD changer mechanism assembly Removing the CD changer mechanism assembly See Fig 15 to 17 Fig 17 Fig 16 Caution When replacing the CD changer mechanism assembly be sure not to mistake the positions of the red and blue dampers Note When re assembling after the disassembly work apply bonding agent on the spring to prevent it from slipping of...

Page 12: ...nger unit 1 2 3 4 5 6 Remove the two screws P retaining the stopper brackets on both sides of the CD changer unit Remove the stopper brackets from both sides of the CD changer unit Pull out the CD tray from the CD changer unit all the way and then lift the tray upward to remove Turn the CD tray upside down and remove the tray rotor belt from the pulley Turn the CD tray upside down and disconnect t...

Page 13: ...he back of the front panel assembly 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 screw with the washer S that retains the head phone board from the back of the front panel assembly Removing the head phone board See Fig 23 R R Front panel assembly Wir...

Page 14: ...crophone amplifier board 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 1 Remove the three screws U that retain the control FL board from the back of the front panel assembly Removing the control FL board See Fig 26 Fig 24 Fig 25 Fig 26 U Mic volume knob Front panel assembly Control FL board...

Page 15: ...he volume knob shaft Remove the three screws U retaining the control FL board from the back of the front panel assembly Remove the control FL board Remove the eleven screws V retaining the switch board Remove the two screws W retaining the active bass ex switch board Removing the switch board and active bass ex switch board See Fig 26 to 29 Fig 28 Fig 29 V V W Active bass ex switch board Switch bo...

Page 16: ...ngths 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 Prior to performing the following procedures remove the top cover Also remove the CD changer unit Also remove the front panel assembly 1 2 3 4 5 Remove the five screws R that retain the cassette deck mechanism Remove the cassette deck mechanism ...

Page 17: ...direction of the arrow to remove it Removing the cassette deck heads See Fig 22 and 33 Fig 36 Prior to performing the following procedures remove the top cover 1 2 3 4 5 Disconnect the card wire from connector CN606 on the main board Remove the three screws AA and screw AB retains the Video CD board cover In order to remove the wire from the Video CD board remove the solder on the power amplifier ...

Page 18: ... heat sink cover to the rear panel Pull the heat sink cover foward you Remove the screw AD that retains the bracket holding the 3 pin terminal regulator Remove the solder fixing the 3 pin regulator Removing the 3 pin regulator See Fig 2 37 and 38 Power amplifier board Rear panel Rear Solder on the 3 pin regulator Fig 37 Heat sink AD ...

Page 19: ...oltage selector board Disconnect the parallel wires from the connectors CN951A and CN951B on the power amplifier board Remove the screw AH that retain the power amplifier board and then remove the assembly Remove the solders j connecting the six wires Remove the four screws AJ that retain the power transformer board and then remove the assembly Removing the power amplifier board voltage selector b...

Page 20: ...2 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 Precautions for measurement 1 Apply 30pF and 33kohm to the IF sweeper output side and 0 082 F and 100kohm in series to t...

Page 21: ...il L301 Use the High Impedance Probe for Frequency counter input Cassette Head Azimuth Alignments Recording Bias Frequency Alignment Items Measurement conditions Measurement method Standard values Adjusting positions 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 Antenna co...

Page 22: ...s Disc states to rotate TOC reading finishes Automatic measurement of TE amplitude and automatic tuning of TE balance 500mv div 2ms div Fig 1 Approx 3sec pin 14 of IC601 TEO Approx 1 8V VREF Tracking error waveform at TOC reading Power ON Play Key Confirm that the Focus error S cuve signal at the pin 16 of IC601 is approx 2Vp p Confirm the waveform of the Tracking error signal at the pin 14 of IC6...

Page 23: ...e 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 Is the level of RFOUT under 1 25V 0 22Vp p Replace it NO YES O K 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 ...

Page 24: ...8 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 VOL VKK 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 S y s t e m p o w e r o n o f f c o n t r o l C l o ck s h i f t o u t p u t S y s t e m m u t e c o t r o l o u t...

Page 25: ...95 96 97 98 99 100 LA12 17 ACLK AOUT SEL_PLL0 ATCLK ATFS SEL_PLL1 DA9 DOE AIN ARCLK ARFS TDMCLK TDMDR TDMFS CAS VSS RISC interface address bus Master clock for external audio DAC Audio interface serial data output when selected System and DSCK output clock frequency selection at reset time The matrix below lists the available clock frequencies and their respective PLL bit settings SEL_PLL1 SEL_PLL...

Page 26: ...reference CMR buffer output CMR is approximately 2 25V Bypass to analog ground with 47uF electrolytic in paralell with 0 1uF DAC and ADC maximum reference Bypass to video CMR VCMR with 10uF in parallel with 0 1uF I I O I O I O I I O O I I I O O I I O I O I O I I O I O O I I O I O I O O I I O I O I O I I 80 51 1 30 100 81 31 50 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67...

Page 27: ...UNTER A D SRAM D A MIX GND ECHO VR BIAS DAINTO DAINTI DALPFI DALPFO MIXO CR MUTE VCC ADINTI ADINTO ADLPFO ADLPFI MIXI 2 Pin function 1 Terminal layout block diagram BU9253FS IC851 Low pass filter echo mixer 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 GND ECHO VR BIAS DAINTO DAINTI DALPFI DALPFO MIXO MIXI ADLPFI ADLPFO ADINTO ADINTI VCC MUTE CR Connect GND Echo level control Analog part DC bias DA side ...

Page 28: ...CH2 Inverted output for CH2 Power ground PIN No Symbol 13 14 15 16 17 18 19 20 21 22 23 24 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 PWGND OUT 1 PVCC1 OUT 1 VIN1 VRI VCI VIN2 OUT 2 PVCC2 OUT 2 PWGND PWGND OUT 4 PVCC4 OUT 4 VIN4 SVCC SGND VIN3 OUT 3 PVCC3 OUT 3 PWGND Power ground Inverted output for CH3 Supply terminal of output stage for CH3 Non inverted output for CH3 Input f...

Page 29: ...ON Control signal output High Tracking error balance adjustment signal input terminal Controlled by 3 PWM signals PWM carrier 88 2kHz Reference voltage 2VRO output terminal 2RVO 4 2V whenVcc 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 switchi...

Page 30: ...e B cassette 20 PREOUT2 O Output terminal for playback amp 21 EQ2 O Metal output for playback amp 22 NF2 I NF terminal for playback amp 23 CH2_B I Input for playback amp Ch2 B cassette REC PB 24 CH2_A I Input for playback amp Ch2 A cassette PB 1 2 3 4 5 6 7 8 9 10 11 12 CH1_A CH1_B NF1 EQ1 PREOUT1 MIX_OUT GND1 EQSW REC_OUT1 REC_NF1 REC_IN1 GND 24 23 22 21 20 19 18 17 16 15 14 13 CH2_A CH2_B NF2 EQ...

Page 31: ...VCC FM_RFOUT I I O I I I I O O I O I I I O O O O I O Symbol I O Function PIN No 2 Pin function 1 2 3 4 5 6 7 8 9 10 11 12 XT XT PERIOD CLOCK DATA OT 1 OT 2 OT 3 OT 4 I O 5 CLK I O 6 VDD Crystal oscillator pins Crystal oscillator pins Period signal input Clock signal input Serial data input output General purpose output port General purpose output port General purpose output port General purpose ou...

Page 32: ...l output the text data with serial by command I O O O O O O O O O O I O O O O O O O O 80 51 1 30 100 81 31 50 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 VDD TESIO0 P2VREF HSSW ZDET PDO TMAXS TMAX LPFN LPFO PVREF VCOREF VCOF AVSS SLCO RFI AVDD REFCT RFZI RFRP FEI SBAD TSIN TEI TEZI FDO TRO VREF Digital power supply voltage terminal Test input output terminal...

Page 33: ... of 2 state PWM Normally keep at open DAC test mode terminal Normally keep at open O O O O O O O O O O I O I O I O I O I I I 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 98 99 100 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 TEST4 TSMOD RST Test input terminal Normally keep at L leve...

Page 34: ...04 2MB PROM 1 Terminal layout PIN No Symbol Function 1 2 12 13 15 16 17 21 22 23 24 25 30 31 32 Power supply terminal Address input Data input output Ground terminal Data input output Chip enable terminal Address input Output enable teminal Address input Program strobe Power supply terminal VPP A16 A15 A12 A7 A0 D0 D2 GND D3 D7 CE A10 OE A11 A9 A8 A13 A14 A17 PGM VCC I O I I O I O I I I I I 2 Pin ...

Page 35: ...Switch board Control FL board FL tube Head phone board Parallel wire Card wire Parallel wire Card wire Card wire CN901 1 CN603 Color codes are shown below 1 Brown 2 Red 3 Orange 4 Yellow 5 Green 6 Blue 7 Violet 8 Gray 9 White 0 Black A FW701 FW701 FW702 2 FW702 1 1 1 9 2 9 9 6 9 4 CN308 CN307 9 4 0 6 2 0 9 9 0 2 2 9 0 9 2 9 CN605 W607 W608 W608 W607 1 1 1 1 1 Tray motor 9 9 2 9 2 9 6 9 9 0 W606 1 ...

Page 36: ...or Driver IC604 TA8409S Motor Driver CN302 To Control VFD FW701 CN701 CN703 IC701 TMP87CK78 XXX MPU IC702 IR Sensor CN702 To Main To Main To Power Amp Control FL FW701 Jog Key s Switch CN901 J901 Q151 Mute CN951 IC151 2CH Power Amp STK402 070 CN902 To Main To Control Power amplifier Q251 Mute Speaker output To Primary Rectifire Power Supply Circuit Protect Control Circuit CN1101 IC1101 ES3880FL MP...

Page 37: ...3 C410 0 0033 C511 25V10 C411 25V10 C306 10V47 R306 1M R512 1 8K R513 22K R514 4 7K R413 22K R414 4 7K R412 1 8K C515 25V4 7 C415 25V4 7 Q501 2SD2144S Q401 2SD2144S C514 1000P C414 1000P PB HD RP HD C508 25V4 7 C408 25V4 7 R505 10K R405 10K C509 1000P C409 1000P C517 470P C417 470P R415 10K R515 10K L301 BIAS COIL C308 0 015 M Q303 KTC3203Y R308 10K R311 12 C311 0 01M C312 0 0068M R310 39 C309 0 0...

Page 38: ... 12 13 CN601 FFC 16P DWSW OPSW UPSW DCNT TM TM GND CLSW R657 10K R656 10K R655 10K R654 10K R652 10K R653 10K IN 1 VCC 2 OUT 3 NC 4 GND 5 VS 6 OUT 7 VR 8 IN 9 IC604 TA8409S IN 1 VCC 2 OUT 3 NC 4 GND 5 VS 6 OUT 7 VR 8 IN 9 IC605 TA8409S C660 16V10 C658 16V10 R641 2 2K R638 3 3k R648 1K R650 1 5K C659 16V10 L602 10uH F B R642 1K C657 0 1 R639 100K R647 100K R643 100K R651 100K R619 91 R640 1K R645 1...

Page 39: ...680 R1011 560 R1012 680 R1022 680 R1020 680 R1021 560 S1014 CD3 S1015 EJECT S1016 DISC S1025 PRESET S1026 PRESET R1013 820 R1014 1 2K R1015 1 2K R1023 820 R1024 1 2K S1017 REC s1018 DUBBING S1019 A B R1016 1 8K R1017 2 7K R1018 3 9K S1032 KEY S1008 CANCEL S1021 RETURN R1029 6 8K R1009 3 9K R1028 3 9K LED01 red R1031 390 1 2 3 SW001 JOG C1004 0 01 C1003 0 01 Q703 DTA114YS C706 0 1 C1002 0 001 C1001...

Page 40: ...16256 J1101 V OUT A10 23 OE 24 A11 25 A9 26 A8 27 A13 28 VPP 1 A16 2 A15 3 A12 4 A7 5 A6 6 A5 7 A4 8 A3 9 A2 10 D0 13 D1 14 D3 17 D4 18 D5 19 D6 20 D7 21 CE 22 A1 11 A0 12 D2 15 GND 16 A14 29 A17 30 PGM 31 VCC 32 IC104 27C020 R1123 4 7K C1102 0 1 To Main Board SRDATA LRCK BCLK R1112 4 7K R1125 1K R1111 4 7K R1110 4 7K BCLK ARCLK LRCK SRDATA AIN ABCLK ARFS XCLK ADATA ALRCK LA6 LA15 LA12 LA7 LA16 LA...

Page 41: ...C914 0 01 R904 100 R905 100 R902 100 1 4W UNF F D908 MTZ6 2J C915 50V22 R906 10K C927 25V2 2 C906 50V3300 C905 50V3300 D902 1N5391 D903 1N5391 D905 1N5391 D904 1N5391 C907 0 1 C909 0 1 C908 0 1 C910 0 1 C911 25V4700 R901 4 7K R167 10K R267 10K R171 10K R271 10K Q253 KTC3199 R273 15K R170 1K R SW L GND S1 SP R SP L SP L SP R SPEAKER OUTPUT To HEADPHONE S2 S1 GND S1 S2 S3 S3 S4 S4 To SECONDARY D251 ...

Page 42: ...00K C861 0 0033 R858 10K D852 MTZ5 1JB R875 22K VR840 10K A R840 4 7K B 9V MIC AG ECHO DG GND 1 ECHO VR 2 BIAS 3 DAINTO 4 DAINTI 5 DALPFI 6 DALPFO 7 MIXO 8 MIXI 9 ADLPFI 10 ADLPFO 11 ADINTO 12 ADINTI 13 VCC 14 MUTE 15 CR 16 IC851 BU9253FS Q852 2SC2785 C875 0 01 R881 2 2K Q853 DTA114YS R882 12K MIC JACK TO MAIN PCB L1053 F B J1053 VMJ4026 001 1 2 3 4 FW1051 L1052 47uH L1051 47uH LOUT SW ROUT GND HE...

Page 43: ...ckup switch board Turn table motor board ECHO board Main board Printed circuit boards Main board Note This is a printed circuit board on a silk screen print This method enables the patterns of both surfaces of the printed circuit board to be shown because of the transparency of the silk screen print ...

Page 44: ...d phone board Switch board Voltage selector board Active bass ex switch board Note This is a printed circuit board on a silk screen print This method enables the patterns of both surfaces of the printed circuit board to be shown because of the transparency of the silk screen print ...

Page 45: ...G 1 2 3 4 5 Power amplifier board Note This is a printed circuit board on a silk screen print This method enables the patterns of both surfaces of the printed circuit board to be shown because of the transparency of the silk screen print ...

Page 46: ... Power supply board Note This is a printed circuit board on a silk screen print This method enables the patterns of both surfaces of the printed circuit board to be shown because of the transparency of the silk screen print 2 11 ...

Page 47: ...MX K35V 2 4 A B C D 1 2 3 4 5 Surface side view VCD board 2 12 ...

Page 48: ...A B C 1 2 3 4 5 MX K35V 2 5 Bottom side view 2 13 ...

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