Sony 757MX Support Question
Sony 757MX Support Question
Find answers below for this question about Sony 757MX - Xplod CDX CD.Need a Sony 757MX manual? We have 1 online manual for this item!
Question posted by y225404 on March 29th, 2013
My Changer Does Not Let The Magazine Come Out Or Does Not
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Related Sony 757MX Manual Pages
Service Manual - Page 1
...CDX-757MX
US Model Canadian Model
E Model
Model Name Using Similar Mechanism CD Drive Mechanism Type Optical Pick-up Name
CDX-747X MG-251B-137 KSS-720A
SPECIFICATIONS
System
Compact disc digital audio... DC car battery
(negative ground)
Supplied accessories Disc magazine (1)
Parts for installation and
connections (1 set)
Design...Analog audio output (RCA pin)
Current drain
800 mA (during CD ...
Service Manual - Page 2
... dur- Therefore, when checking the laser diode emission, observe from the objective lens.
CDX-757MX
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICKUP BLOCK OR BASE UNIT
The laser diode in...generated by heat. on the same conductor of arrow A. 2) Removal the magazine assy. Lever (ML.S)
A
Magazine assy
OPTICAL PICK-UP BLOCK
SEMI-FIXED RESISTOR
CAUTION Use of controls or ...
Service Manual - Page 3
...compressing a sound sequence. CDX-757MX
TEST DISC This set can playback a CD-R, CD-RW for audio use the following test ...Audio Layer-3) is recommended. The unit firstly reads all the CDs
in a disc: 511* * Maximum number of
RealNetworks, Inc."
Folder names can be up to start playback of a disc with a complex file structure. • When a disc magazine is inserted into the CD changer...
Service Manual - Page 4
...with the format other compressed formats,
such as a CD changer. Q16 It takes some disc condition (dirt, crack, ...less than three characters in following points about MP3 Audio File
Q1 What is limited to start
playback of...CD-R/RW of m3u.
Note
Recorded music is MP3?
Please refer to the operating instructions. CDX-757MX
FAQ- The unit can be played back on your computer, CD...
Service Manual - Page 5
... Section 20 6-2. RF/LSW Boards 24 6-6. Schematic Diagram - MAIN (Conductor Side)/SWITCH Boards 27 6-9. Mechanism Deck Section-2 (MG-251B-137 43 7-4. ELECTRICAL PARTS LIST 46
CDX-757MX 5 RF Board 13 2-11. ASSEMBLY 3-1. Operation Check 16
4. MAIN Board (3/3 30 6-12. MAIN Board, Slide Variable Resistor
(Elevator Height Sensor) (RV202 10 2-6. MAIN Board (1/3 28...
Service Manual - Page 8
... 11)
2-6. DISASSEMBLY FLOW
SECTION 2 DISASSEMBLY
Note 1: The process described in can be performed in , the next process can be performed. RF BOARD (Page 13)
2-11. CDX-757MX
• This set can not be disassembled in the order shown below.
2-1. CASE (UPPER.T), FRONT PANEL ASSY (Page 9)
2-3. MAIN BOARD, SLIDE VARIABLE RESISTOR (ELEVATOR HEIGHT...
Service Manual - Page 9
...)
1 two dampers (T)
9 CASE (UPPER. T)
3 screw (PTT2.6 × 6) 4 lever (FLT. 838)
2 front panel assy
2-3. T), FRONT PANEL ASSY
3 screw (PTT2.6 × 6)
4 lever (FLT. 838)
1 screw (PTT2.6 × 6)
CDX-757MX
3 screw (PTT2.6 × 6) 5 case (upper.
Service Manual - Page 10
... (FP)
6 main board
2 Remove two solders of the elevator motor leads (M104).
2 Remove two solders of the arrow.
1 ground point screw (PTT2.6 × 6)
2 jack board
2-5. CDX-757MX
2-4. JACK BOARD
Remove the jack board of the switch board leads.
7 screw (PTT2 × 4)
8 slide variable resistor (elevator height sensor) (RV202)
10
3 screw (PTT2 ×...
Service Manual - Page 17
...vertically as shown below , adjust the following. 5. compact disc changer
CONTROL connector (CN901)
comb tooth at address 6
A B ... replaced for any repair. MDX-C7970), load a
disc magazine, and place the set placed vertically and horizontally respectively to...address 5
OK
NG
RV201
17 SECTION 4 MECHANICAL ADJUSTMENT
CDX-757MX
• Elevator Height (Address) Adjustment
Note: This adjustments...
Service Manual - Page 18
...;" can be easily seen.
18 TP (VC)
IC101
TP (RFAC)
compact disc changer
CONTROL connector (CN901)
Procedure: 1.
Note: Clear RF signal waveform means that supports ...on the
RF board. 2.
Confirm that it may be clearly distinguished at the center of the waveform. CDX-757MX
SECTION 5 ELECTRICAL CHECK
Note: 1. FOCUS BIAS CHECK
Connection: - Connection: power supply (DC 14.4...
Service Manual - Page 22
...CLK
6 BUSON
2 RST
22
22 ON : When magazine is set
SW201 MAGAZINE
DETECT
SYSTEM CONTROLLER IC201 (3/3)
72 MGLK-SW
MCK 52
...RV201 ELEVATOR HEIGHT
(ADDRESS)
RV202 ELEVATOR HEIGHT
SENSOR
DRIVER +8V
+8V REGULATOR
IC304
CD-ROM/MP3 DECODER (IC601) B+
BATTERY CHECK Q301, 302
+2.5V REGULATOR
IC603
SW801
... Q303, 304
CN901 (2/2) CONTROL
PS901
7 B. MAIN Section (2/2) - CDX-757MX
6-3.
Service Manual - Page 23
...repair. • Power voltage is dc 14.4V and fed with regulated dc power
supply from CD changer controller. • Voltages and waveforms are dc with respect to normal production tolerances.
• ...face are in µF unless otherwise noted. 6-4. J : CD PLAY
• Circuit Boards Location JACK board
SWITCH board LSW board
CDX-757MX
MAIN board RF board
23
23
Ne les remplacer que par ...
Service Manual - Page 26
...)
IC602
31
IC603
45
IC604
25
54
26
1 100
13
IC201
IC202
50 51
76 75
SW201 MAGAZINE
DETECT
12
MAIN FLEXIBLE BOARD
A
RF BOARD CNJ101
(Page 24)
J
K
26
26
11 1-684-649- (11) CDX-757MX
• Semiconductor Location
Ref. PRINTED WIRING BOARDS - D201 D301 D302 D303 D306 D310
Location
E-9 E-2 E-2 E-1 F-5 F-4
IC101 C-9 IC102 D-8 IC201...
Service Manual - Page 30
CDX-757MX
6-11. MAIN Board (3/3) - • See page 31 for for Waveforms. • See page 34 for IC Block Diagram.
(3/3)
B1
(Page 28)
TC-...NC NC NC SQCK SQSO NC EECLK SCL SDA EEDATA SCLK SI SO
R209 470k
R208 100k
SW201 MAGAZINE
DETECT
LIM SAVE LOAD
REV FWD
BUCHK BUSON
BP201
R215 1k
Q202 MUN2211T1
CD-ROM/
RW SELECT
SWITCH
SQCK SQSO
SCL SDA
SCK SI SO
R212 R210
1k
10k
DECINT
IC202...
Service Manual - Page 39
CDX-757MX
6-14. IC PIN FUNCTION DESCRIPTION...D/A converter I ESP mode setting terminal "L": ESP on (fixed at "L" in this set) I CD text mode setting terminal "L": CD text on (fixed at "L" in this set) I Custom file on/off setting terminal "L": custom... for UART I Magazine detect switch input terminal Not used O Audio line muting on/off control signal output "H": muting on O Not used -
Service Manual - Page 40
...input from the SONY bus interface and reset signal generator "L": reset For several hundreds msec. CDX-757MX
Pin No. 54
55, 56 57 58
59
60 61 62 63 64 65 66 67...write control signal output (connecting FEW (pin 66))
O Not used
I Magazine in/out detect switch input terminal "L": magazine in
I Interrupt signal input from the CD-ROM/MP3 decoder
O Not used I Eject switch input terminal "L" active
...
Service Manual - Page 49
...ACCESSORIES
3-241-142-11 MANUAL, INSRTUCTION (ENGLISH, FRENCH, TRADITIONAL CHINESE)
A-3301-944-A MAGAZINE (250) ASSY
PARTS FOR INSTALLATION AND CONNECTIONS
501 * 502
503 504
3-040-583-21...874-11 CORD, CONNECTION (RCA PIN CORD) 1-590-519-21 CORD (WITH CONNECTOR) (BUS CABLE)
Description
CDX-757MX
RF SWITCH
Remark
501
502
BRACKET (T) × 2
503
+PSW4 × 10 × 4
TAPPING SCREW...
Service Manual - Page 51
.... • Power voltage is dc 14.4V and fed with regulated dc power supply from CD changer controller. • Voltages and waveforms are taken with a oscilloscope.
Voltage variations may be noted...production tolerances. • Circled numbers refer to waveforms. • Signal path. CDX-757MX
• DIAGRAMS NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring...
Service Manual - Page 54
...SQCK SQSO NC EECLK SCL SDA EEDATA SCLK SI SO
R209 470k
R208 100k
SW201 MAGAZINE
DETECT
LIM SAVE LOAD
REV FWD
BUCHK BUSON
BP201
R215 1k
Q202 MUN2211T1
CD-ROM/
RW SELECT
SWITCH
SQCK SQSO
SCL SDA
SCK SI SO
R212 R210
1k
...
IC501 PCM1748E/2K
BCK
SCK
DATA
ML
LRCK
MC
DGND
MD
VDD ZEROL
VCC ZEROR
VOUTL VCOM
VOUTR AGND
CDX-757MX
C1 C4 C3
ML MC MD
C7 C6 C8 C9
(Page 4)
C5
5
5
Service Manual - Page 55
...BOARD CNJ901
(Page 8)
IC602
31
IC603
45
IC604
54
13 R213
D202 25 26
1 100
IC201
50 51
76 75
IC202
SW201 MAGAZINE
DETECT
12
MAIN FLEXIBLE BOARD
A
RF BOARD CNJ101
J
K
6
6
12 1-684-649- (12) No.
D201 D202 D301 D302... F-8 IC605 B-7
Q202 Q301 Q302 Q303 Q304 Q402 Q410 Q420
E-11 F-5 F-5 G-4 G-4 E-4 D-2 D-3
PRINTED WIRING BOARDS - CDX-757MX
• Semiconductor Location
Ref.
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