CMT-SPZ50, CMT-SPZ70, HCD-SPZ50, HCD-SPZ70 - Sony Audio Service Manual (repair manual)

CD Section

Model Name Using Similar Mechanism

NEW

CD Mechanism Name

DLM3A

Base Unit Name

BU-K6BD83S-WOD

Optical Pick-Up Block Name

KSM-213DCP

TAPE Section

Model Name Using Similar Mechanism

NEW

Tape Transport Mechanism Name

CFP42601

– Continued on next page –

2007B05-1
© 2007.02

AEP Model

UK Model

E Model

HCD-SPZ50/SPZ70

Australian Model

HCD-SPZ50

•

HCD-SPZ50 is the amplifier, CD player, tape
deck and tuner section in CMT-SPZ50.

•

HCD-SPZ70 is the amplifier, CD player, tape
deck and tuner section in CMT-SPZ70.

Photo: HCD-SPZ70

European and Russian models:

DIN power output (rated): 60 + 60 W (4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 75 + 75 W (4 ohms at 1 kHz, 
10% THD)
Music power output (reference): 75 + 75 W (4 ohms at 1 kHz, 10% THD)

Other models:
The following are measured at AC 127 V, 60 Hz (Mexican model)
AC 120 – 127 V or AC 220 – 240 V, 50/60 Hz (Other models)

DIN power output (rated): 50 + 50 W (4 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 60 + 60 W (4 ohms at 1 kHz, 
10% THD)

Inputs

AUDIO IN: Sensitivity 250 mV, impedance 47 kilohms

Outputs

PHONES: Accepts headphones with an impedance of 8 ohms or more
SPEAKER: Accepts impedance of 4 ohms

European and Russian models:

Other models:

DIN power output (rated): 40 + 40 W (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 50 + 50 W (6 ohms at 1 kHz, 
10% THD)
Music power output (reference): 50 + 50 W (6 ohms at 1 kHz, 10% THD)

The following are measured at AC 220 – 240 V, 50/60 Hz

DIN power output (rated): 30 + 30 W (6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference): 40 + 40 W (6 ohms at 1 kHz, 
10% THD)

Inputs

AUDIO IN: Sensitivity 250 mV, impedance 47 kilohms

Outputs

PHONES: Accepts headphones with an impedance of 8 ohms or more
SPEAKER: Accepts impedance of 6 ohms

System: Compact disc and digital audio system
Laser Diode Properties

Emission Duration: Continuous
Laser Output*: Less than 44.6

µ

W

* This output is the value measurement at a distance of 200 mm from the 

objective lens surface on the Optical Pick-up Block with 7mm aperture.

Frequency response: 20 Hz – 20 kHz (

±

2 dB)

Wavelength: 780 – 790 nm

Recording system: 4-track 2-channel, stereo
Frequency response: 50 – 13,000 Hz (

±

3 dB), using Sony TYPE I cassettes

FM stereo, FM/AM superheterodyne tuner

FM tuner section:

Tuning range: 87.5 – 108.0 MHz
Antenna: FM lead antenna
Antenna terminals: 75 ohms unbalanced
Intermediate frequency: 10.7 MHz

AM tuner section:

Tuning range
European and Russian models: 531 – 1,602 kHz (with 9 kHz tuning interval)
Latin American model: 530 – 1,710 kHz (with 10 kHz tuning interval) 
 

531 – 1,710 kHz (with 9 kHz tuning interval) 

Other models:  530 – 1,710 kHz (with 10 kHz tuning interval)
 

531 – 1,602 kHz (with 9 kHz tuning interval)

Antenna: AM loop antenna
Antenna terminals: External antenna terminal
Intermediate frequency: 450 kHz

U.S. and foreign patents licensed from Dolby
Laboratories.

2

•

Never reuse a disconnected chip component.

•

Notice that the minus side of a tantalum capacitor may be

damaged by heat.

•

Keep the temperature of the 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.

...............................................

3

...................................................................

5

3-1.

Disassembly Flow ...........................................................

7

3-2.

Case .................................................................................

7

3-3.

Front Panel Assy ..............................................................

8

3-4.

Tape Mechaism Deck (CFP42601) .................................

8

3-5.

MAIN Board ....................................................................

9

3-6.

Base Unit (BU-K6BD83S-WOD Assy)/
Belt (DLMA) ...................................................................

9

3-7.

AMP/SP/POWER Board ................................................. 10

3-8.

Tuner (FM/AM) ............................................................... 10

.............................................................. 11

.......................... 13

............................ 13

7-1.

Block Diagram – CD SERVO Section – ......................... 15

7-2.

Block Diagram – MAIN Section – .................................. 16

7-3.

Block Diagram – AMP Section – .................................... 17

7-4.

Block Diagram
– PANEL/POWER SUPPLY Section – ........................... 18

7-5.

Printed Wiring Board – CD Board – ............................... 20

7-6.

Schematic Diagram – CD Board – .................................. 21

7-7.

Printed Wiring Board – TC Board – ................................ 22

7-8.

Schematic Diagram – TC Board – .................................. 23

7-9.

Printed Wiring Board – MAIN Board – .......................... 24

7-10. Schematic Diagram – MAIN Board (1/3) – .................... 25
7-11. Schematic Diagram – MAIN Board (2/3) – .................... 26
7-12. Schematic Diagram – MAIN Board (3/3) – .................... 27
7-13. Printed Wiring Board – AMP Board (SPZ50) – .............. 28
7-14. Schematic Diagram – AMP Board (SPZ50) – ................. 29
7-15. Printed Wiring Board – AMP Board (SPZ70) – .............. 30
7-16. Schematic Diagram – AMP Board (SPZ70) – ................. 31
7-17. Printed Wiring Board – PANEL Section (1/2) – ............. 32
7-18. Printed Wiring Boards – PANEL Section (2/2) – ............ 33
7-19. Schematic Diagram – PANEL Section (1/2) – ................ 34
7-20. Schematic Diagram – PANEL Section (2/2) – ................ 35
7-21. Schematic Diagram – POWER Board – .......................... 36
7-22. Printed Wiring Board – POWER Board – ....................... 37

8-1.

Overall Section ................................................................ 53

8-2.

Front Panel Section ......................................................... 54

8-3.

FL Section ....................................................................... 55

8-4.

CD Section ...................................................................... 56

8-5.

Power Section .................................................................. 57

................................ 58

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.

 0

0

4HIS

Power requirements

Mexican model: 127 V AC, 60 Hz
Latin American model except for Mexican and Argentine models: 
120 – 127 V or 220 – 240 V AC, 50/60 Hz
Adjustable with voltage selector
Other models: 220 – 240 V AC, 50/60 Hz

Power consumption:

HCD-SPZ70: 45 watts
HCD-SPZ50: 40 watts

Mass (excl. speakers): Approx. 4.1 kg

Design and specifications are subject to change without notice.

Note: Refer to SUPPLEMENT-1 for the HP A-IN and MAIN boards

of printed wiring boards, schematic diagrams and electri-
cal parts list of HCD-SPZ70 Korean model.

3

MODEL

PART No.

SPZ70: AEP, UK

2-659-064-0[]

SPZ70: E2

2-659-064-1[]

SPZ70: MX

2-659-064-2[]

SPZ70: E51

2-659-064-3[]

SPZ70: AR

2-659-064-4[]

SPZ70: RU

2-659-064-6[]

SPZ70: KR

2-659-064-7[]

SPZ50: AEP, UK

2-670-256-0[]

SPZ50: SP

2-670-256-1[]

SPZ50: AUS

2-670-256-2[]

SPZ50: KR

2-670-256-3[]

SPZ50: RU

2-670-256-4[]

•

Abbreviation
AR

: Argentina model

AUS

: Australian model

E2

: 120V AC area in E model

E51

: Chilean and Peruvian models

KR

: Korean model

MX

: Mexican model

RU

: Russian model

SP

: Singapore model

The laser diode in the optical pick-up block may suffer electrostatic
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 flexible board is easily damaged and should be handled with
care.

The laser beam on this model is concentrated so as to be focused on
the disc reflective surface by the objective lens in the optical pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.

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 viscou-s (sticky, less prone to flow)
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.

The disc table lock function for the antitheft of an demonstration
disc in the store is equipped.

1. Press the  

I

/1

  button to turn the power on.

2. While pressing the

x

button, press the

Z

button until

“UNLOCKED” displayed on the fluorescent indicator tube
(around 5 seconds).

When “LOCKED” is displayed, the antitheft lock is not released by
turning power on/off with the

I/

1

button.

4

[        ]

IC1301 that have been mounted on the MAIN board of AEP, UK and Russian models has been changed in the midway of production. C25 on
the POWER board and POWER board have been changed with the change.
Because there is a suited combination, when you repairing exchange the MAIN board, IC1301 on the MAIN board, C25 on the POWER
board or the POWER board, be sure to confirm which type set referring to the following.

•

Model

Destination

HCD-SPZ50

AEP, UK and Russian

HCD-SPZ70

Distination except AEP, UK and Russian models are type B and type C only.

•

TYPE

IC1301 (MAIN board)

C25 (POWER board)

POWER board

A

6-806-302-01   IC   M30622MEP-A36FPU0

1-216-948-11   ELECT   100uF   20%   35V

A-1191-115-A (SPZ70)

A-1191-116-A (SPZ50)

B

6-806-618-01   IC   M30622MEP-A38FPU0

1-216-950-11   ELECT   330uF   20%   35V

A-1166-887-A (SPZ70)

A-1167-006-A (SPZ50)

C

6-807-018-01   IC   M30622MEP-B09FPU0

1-216-950-11   ELECT   330uF   20%   35V

A-1166-887-A (SPZ70)

A-1167-006-A (SPZ50)

•

Discriminate by the type name printed on IC1301 that have been mounted on the MAIN board.

•

1. Confirm which type set of the repair (Refer to “Discrimination”).
2. Confirm the IC1301 of which has been mounted on the new MAIN board (Refer to “Combination”).
3. Work according to the following table.

Repairing Set

Type

A

B or C

A

Install the MAIN board as it is

Install the MAIN board after exchanging C25 of the

New MAIN Board

POWER board for 100uF (1-126-948-11)

B or C

Install the MAIN board after exchanging C25 of the

Install the MAIN board as it is

POWER board for 330uF (1-126-950-11)

1. Confirm which type set of the repair (Refer to “Discrimination”).
2. Exchange it for IC1301 of the same as the repairing set (Refer to “Combination”).

1. Confirm which type set of the repair (Refer to “Discrimination”).
2. Exchange it for C25 of the same as the repairing set (Refer to “Combination”).

1. Confirm which type set of the repair (Refer to “Discrimination”).
2. Exchange it for POWER board of the same as the repairing set (Refer to “Combination”).