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2013K33-1

© 

2013.11

CD 
Section

Model Name Using Similar Mechanism

CFD-G700CP/G770CP/G770CPK

CD Mechanism Type

KSM-213CDP/C2NP

Optical Pick-up Name

KSS-213C

TAPE
Section

Model Name Using Similar Mechanism

CFD-G505

Tape Transport Mechanism Type

MF-G505V

CD player section
System
  Compact disc digital audio system
Laser diode properties
  Emission duration: Continuous
  Laser output: Less than 44.6 

W

  (This output is the value measured at a distance of
  about 200 mm from the objective lens surface on the
  optical pick-up block with 7 mm aperture.)
Number of channels
  2
Frequency response
  20 - 20 000 Hz +1/–2 dB
Wow and fl utter
  Below measurable limit

Radio section
Frequency range
 MX 

model:

  FM: 87.5 - 108 MHz
  AM: 530 - 1 710 kHz
  BR, CET, E41, E92 model:
  FM:  87.5 - 108 MHz
  AM: 531 - 1 611 kHz (9 kHz step)
   

530 - 1 610 kHz (10 kHz step)

Antennas
 FM: 

Telescopic 

antenna

  AM: Built-in ferrite bar antenna

Cassette-corder section
Recording system
  4-track 2 channel stereo
Fast winding time
  Approx. 150 s (sec.) with Sony cassette C-60
Frequency response
  TYPE I (normal): 70 - 13 000 Hz

USB section
Supported bit rate
  MP3 (MPEG 1 Audio Layer-3):
  32 - 320 kbps, VBR
 WMA:
  16 - 320 kbps, VBR
Sampling frequencies
  MP3 (MPEG 1 Audio Layer-3):
 32/44.1/48 

kHz

 WMA:
 32/44.1/48kHz

 (USB) port

  USB-A (Full Speed)

– Continued on next page –

UNLEADED  SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution:  Some printed circuit boards may not come printed with 

the lead free mark due to their particular size)

Unleaded solder has the following characteristics.
•  Unleaded solder melts at a temperature about 40 °C higher 

than ordinary solder.

 

Ordinary soldering irons can be used but the iron tip has to be 
applied to the solder joint for a slightly longer time.

 

Soldering irons using a temperature regulator should be set to 
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if 

the heated tip is applied for too long, so be careful!

• Strong 

viscosity

 

Unleaded solder is more viscous (sticky, less prone to fl ow) 
than ordinary solder so use caution not to let solder bridges 
occur such as on IC pins, etc.

•  Usable with ordinary solder
 

It is best to use only unleaded solder but unleaded solder may 
also be added to ordinary solder.

NOTES  ON  CHIP  COMPONENT  REPLACEMENT
•  Never reuse a disconnected chip component.
•  Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

FLEXIBLE  CIRCUIT  BOARD  REPAIRING
•  Keep the temperature of soldering iron around 270 °C during 

repairing.

•  Do not touch the soldering iron on the same conductor of the 

circuit board (within 3 times).

•  Be careful not to apply force on the conductor when soldering 

or unsoldering.

COMPONENTS  IDENTIFIED  BY  MARK  0  OR  DOTTED  LINE  
WITH  MARK  0  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN  
THE  PARTS  LIST  ARE  CRITICAL  TO  SAFE  OPERATION.
REPLACE  THESE  COMPONENTS  WITH  SONY  PARTS 

General
Speaker
  Full range: 10 cm (4 in.) dia., 3.2 

Ω, cone type (2)

  Woofer: 13 cm (5

 1/8

 in.) dia., 4 

Ω, cone type (1)

  Tweeter: 2 cm (

13/16

 in.) dia. (2)

Input
  Built-in audio cable with stereo-mini plug:
     Minimum input level 245 mV
  AUDIO IN Jack (stereo minijack):
     Minimum input level 245 mV
 

 (USB) port: Type A, maximum current 500 mA

Outputs
  Headphones jack (stereo minijack)
  For 16 - 68 

Ω impedance headphones

Power output
  4 W + 4 W (at 3.2 

Ω, 10% harmonic distortion)

 Woofer:
  12 W (at 4 

Ω, 10% harmonic distortion)

Power requirements
  For CD radio cassette-corder:
  E91, MX model: 120 V AC, 60 Hz
  BR model: 120 – 127/220 – 230 V AC, 50/60 Hz
  CET, E41 model: 230 V AC, 50 Hz
  12 V DC, 8 R20 (size D) batteries
  For remote control:
  3 V DC, 2 R6 (size AA) batteries
Power consumption
 AC 

28 

W

Battery life

For CD radio cassette-corder:
FM recording
Sony R20P: approx. 6 h
Sony alkaline LR20: approx. 18 h
Tape playback
Sony R20P: approx. 1.5 h
Sony alkaline LR20: approx. 6 h
CD playback
Sony R20P: approx. 1 h
Sony alkaline LR20: approx. 5 h

Dimensions
 Approx. 

551 

× 263 × 380 mm (w/h/d)

  (incl. projecting parts)
Mass
  Approx. 8.5 kg (incl. batteries)
Supplied accessories
  AC power cord (1)
  Remote control (1)

Design and specifi cations are subject to change without
notice.

• Abbreviation
  BR 

: Brazilian model

  CET  : East European & Russian model
  E41 

: 230V AC area in E model

  E92 

: 120V AC area in E model

  MX 

: Mexican model

  .............................................   4

  ..................................................................   5

3-1.   Cabinet (Upper) Section-1 ..............................................   9
3-2.   Cabinet (Upper) Section-2 ..............................................   9
3-3.   Cabinet (Front) Section ...................................................   10
3-4.   POWER KEY Board, HEADPHONE Board,
 

VOLUME KEY Board, AUDIO IN Board .....................   10

3-5.   Front Panel ......................................................................   11
3-6.   LCD Board ......................................................................   11
3-7.   LED Boards ....................................................................   12
3-8.   Speaker (13 cm) ..............................................................   12
3-9.   Speaker (10 cm) ..............................................................   13
3-10.  POWER Board ................................................................   13
3-11.  TUNER Board ................................................................   14
3-12.  MAIN Board ...................................................................   14
3-13.  FUNCTION KEY Board, CD KEY Board .....................   15
3-14.  SOUND KEY Board, USB Board ..................................   15
3-15.  CD Block Section ...........................................................   16
3-16.  Optical Pick-up ...............................................................   16
3-17.  Tape Mechanism Deck ....................................................   17
3-18.  Belt (Main), Belt (RF) ....................................................   17
3-19.  TC Board .........................................................................   18

TEST  MODE 

 ............................................................   19

ADJUSTMENTS 

 ......................   20

ADJUSTMENTS 

 ........................   21

7-1.  Block Diagram –CD Section– ........................................   25
7-2.  Block Diagram –TUNER Section– .................................   26
7-3.  Block Diagram –MAIN Section– ...................................   27
7-4.  Block Diagram –POWER Section– ................................   28
7-5.  Printed Wiring Board –CD Section– ..............................   31
7-6.  Schematic Diagram –CD Section– .................................   32
7-7.  Printed Wiring Board –TUNER Section– .......................   33
7-8.  Schematic Diagram –TUNER Section– .........................   34
7-9.  Printed Wiring Board –TC Section– ...............................   35
7-10.  Schematic Diagram –TC Section– ..................................   36
7-11.  Printed Wiring Board –MAIN Section– .........................   37
7-12.  Printed Wiring Boards –JACK Section– ........................   38
7-13.  Schematic Diagram –MAIN Section (1/3)– ...................   39
7-14.  Schematic Diagram –MAIN Section (2/3)– ...................   40
7-15.  Schematic Diagram –MAIN Section (3/3)– ...................   41
7-16.  Printed Wiring Board –LCD Section– ............................   42
7-17.  Schematic Diagram –LCD Section– ...............................   43
7-18.  Printed Wiring Boards –KEY Section– ..........................   44
7-19.  Schematic Diagram –KEY Section– ...............................   45
7-20.  Printed Wiring Boards –POWER Section– ....................   46
7-21.  Schematic Diagram –POWER Section– .........................   47

8-1. Overall 

Section 

...............................................................  56

8-2.  Cabinet (Front) Section ...................................................   57
8-3.  Cabinet (Rear) Section ....................................................   58
8-4.  Cabinet (Upper) Section-1 ..............................................   59
8-5.  Cabinet (Upper) Section-2 ..............................................   60
8-6.  Tape Mechanism Deck Section .......................................   61

  ..............................   62

The laser diode in the optical pick-up block may suffer electrostat-
ic break-down because of the potential difference generated by the 
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attention to electrostatic break-down and also 
use the procedure in the printed matter which is included in the 
repair parts.
The fl exible board is easily damaged and should be handled with 
care.

NOTES  ON  LASER  DIODE  EMISSION  CHECK
The laser beam on this model is concentrated so as to be focused 
on the disc refl ective surface by the objective lens in the optical 
pickup block. Therefore, when checking the laser diode emission, 
observe from more than 30 cm away from the objective lens.

On repairing CD section, playing a disc without the CD lid, use 
Chuck Plate Jig.
•  Code number of Chuck Plate Jig : X-4918-255-1

LASER  DIODE  AND  FOCUS  SEARCH  OPERATION  
CHECK
1.  Turn ON the [POWER] button.
2.  Open the CD lid.
3.  Turn on SW2 with screwdriver, etc. as following fi gure.
4.  Press the [

u

] (CD) button.

5. Confi rm the laser diode emission while observing the object-

ing lens. When there is no emission, Auto Power Control cir-
cuit or Optical Pick-up is broken.

  Objective lens moves up and down eight times for focus 

search.