Read Sony HCD-CZ1 / NAS-CZ1 Service Manual online
SERVICE MANUAL
NETWORK AUDIO SYSTEM
US Model
AEP Model
UK Model
HCD-CZ1/NAS-CZ1
Ver. 1.1 2005.08
SPECIFICATIONS
9-879-721-02
2005H05-1
© 2005.08
© 2005.08
Sony Corporation
Audio Group
Published by Sony Engineering Corporation
Published by Sony Engineering Corporation
Model Name Using Similar Mechanism
NEW
CD Base Unit Name
BU-K7BD81B
Optical Pick-up Block Name
KSM-213EDP
•
HCD-CZ1 is the amplifier, CD player
and tuner section in NAS-CZ1.
and tuner section in NAS-CZ1.
Main unit
Amplifier section
For the U.S.A. model
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6-ohm loads, both channels driven, from
120 – 10,000 Hz; rated 10 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milli watts to
rated output.
DISTORTION:
With 6-ohm loads, both channels driven, from
120 – 10,000 Hz; rated 10 watts per channel
minimum RMS power, with no more than 10%
total harmonic distortion from 250 milli watts to
rated output.
European model:
DIN power output (rated): 7.5 + 7.5 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
10 + 10 watts
(6 ohms at 1 kHz, 10%
THD)
(6 ohms at 1 kHz, 10%
THD)
Inputs
ANALOG IN (mini jack): Sensitivity 450 mV,
ANALOG IN (mini jack): Sensitivity 450 mV,
impedance 10 kilohms
Outputs
PHONES (mini jack):
PHONES (mini jack):
accepts headphones with
an impedance of 8 ohms or
more
an impedance of 8 ohms or
more
CD player section
System
Compact disc and digital
audio system
audio system
Laser
Semiconductor laser
(
(
λ
=770 – 810 nm)
Emission duration:
continuous
continuous
Frequency response
2 Hz – 20 kHz (
±
0.5 dB)
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
U.S.A. model:
U.S.A. model:
87.5 – 108.0 MHz
(100-kHz step)
(100-kHz step)
European models:
87.5 – 108.0 MHz
(50-kHz step)
(50-kHz step)
Antenna
FM lead antenna
Antenna terminals
75 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
U.S.A. model:
U.S.A. model:
530 – 1,710 kHz
(with the tuning interval
set at 10 kHz)
531 – 1,710 kHz
(with the tuning interval
set at 9 kHz)
(with the tuning interval
set at 10 kHz)
531 – 1,710 kHz
(with the tuning interval
set at 9 kHz)
European model:
531 – 1,602 kHz
(with the tuning interval
set at 9 kHz)
(with the tuning interval
set at 9 kHz)
Antenna
AM loop antenna
Antenna terminals
External antenna terminal
Intermediate frequency
450 kHz
Speaker section
Speaker system
2-way, Acoustic
Suspension type
Suspension type
Speaker units
Woofer:
Woofer:
9 cm dia., cone type
Tweeter:
2.5 cm dia., balanced-
dome-type
dome-type
Nominal impedance
6 ohms
General
Power requirements
U.S.A. model:
U.S.A. model:
120 V AC, 60 Hz
European model:
230 V AC, 50/60 Hz
Power consumption
U.S.A. model:
U.S.A. model:
40 watts
European model:
40 watts
0.3 watts (in Power Saving
mode)
0.3 watts (in Power Saving
mode)
Dimensions (w/h/d) incl. projecting parts and controls
Approx. 460
×
175
×
190 mm
Mass
Approx. 5.3 kg
Supplied accessories
Remote Commander with
battery (1)
AM loop antenna (1)
FM lead antenna (1)
Network cable (1)
M-crew Server CD-ROM
(1)
battery (1)
AM loop antenna (1)
FM lead antenna (1)
Network cable (1)
M-crew Server CD-ROM
(1)
Design and specifications are subject to change
without notice.
without notice.
2
HCD-CZ1/NAS-CZ1
Notes on chip component replacement
•
Never reuse a disconnected chip component.
•
Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
•
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.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
other than those specified herein may result in hazardous radiation
exposure.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2 V AC range are suitable. (See
Fig. A)
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
µ
F
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
SAFETY-RELATED COMPONENT WARNING!!
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 WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR
IN SUPPLEMENTS PUBLISHED BY SONY.
The following caution label is located inside the unit.
This appliance is
classified as a CLASS 1
LASER product. This
marking is located on the
bottom exterior.
classified as a CLASS 1
LASER product. This
marking is located on the
bottom exterior.
3
HCD-CZ1/NAS-CZ1
TABLE OF CONTENTS
1. SERVICE NOTE
................................................................. 4
2. GENERAL
.......................................................................... 15
3. DISASSEMBLY
3-1.
Disassembly Flow ............................................................ 17
3-2.
Speaker Grill (F/R) Assy, Top Panel Assy ........................ 18
3-3.
Cover Bottom Assy ........................................................... 18
3-4.
Rear Panel Section ............................................................ 19
3-5.
Front Panel Section .......................................................... 20
3-6.
Top Panel Section ............................................................. 20
3-7.
Base Unit (BU-K7BD81B) .............................................. 21
3-8.
MAIN Board Section ........................................................ 21
3-9.
ETHER Board, MAIN Board ........................................... 22
4. TEST MODE
...................................................................... 23
5. ELECTRICAL ADJUSTMENTS
................................. 26
6. DIAGRAMS
6-1.
Block Diagram – SERVO Section – ................................ 27
6-2.
Block Diagram – Ethernet Section – ............................... 28
6-3.
Block Diagram – MAIN Section – .................................. 29
6-4.
Printed Wiring Board – CD Board – .............................. 31
6-5.
Schematic Diagram – CD Board – .................................. 32
6-6.
Printed Wiring Board – ETHER Board – ........................ 33
6-7.
Schematic Diagram – ETHER Board – ........................... 34
6-8.
Printed Wiring Board
– MAIN Board (Component Side) – ................................ 35
– MAIN Board (Component Side) – ................................ 35
6-9.
Printed Wiring Board
– MAIN Board (Conductor Side) – .................................. 36
– MAIN Board (Conductor Side) – .................................. 36
6-10. Schematic Diagram – MAIN Board (1/2) – .................... 37
6-11. Schematic Diagram – MAIN Board (2/2) – .................... 38
6-12. Printed Wiring Boards – Power Section – ....................... 39
6-13. Schematic Diagram – Power Section – ........................... 40
6-14. Printed Wiring Boards – Panel Section – ........................ 41
6-15. Schematic Diagram – Panel Section – ............................ 42
6-16. Printed Wiring Board – FL Board – ................................ 43
6-17. Schematic Diagram – FL Board – ................................... 44
6-11. Schematic Diagram – MAIN Board (2/2) – .................... 38
6-12. Printed Wiring Boards – Power Section – ....................... 39
6-13. Schematic Diagram – Power Section – ........................... 40
6-14. Printed Wiring Boards – Panel Section – ........................ 41
6-15. Schematic Diagram – Panel Section – ............................ 42
6-16. Printed Wiring Board – FL Board – ................................ 43
6-17. Schematic Diagram – FL Board – ................................... 44
7. EXPLODED VIEWS
7-1.
Speaker Grill, Top Panel Section ...................................... 54
7-2.
Front Panel Section .......................................................... 55
7-3.
Rear Panel Section ............................................................ 56
7-4.
CD Panel Section .............................................................. 57
7-5.
PSAMP Board Section ..................................................... 58
7-6.
MAIN Board Section ........................................................ 59
7-7.
Base Unit (BU-K7BD81B) .............................................. 60
8. ELECTRICAL PARTS LIST
......................................... 61
4
HCD-CZ1/NAS-CZ1
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
SECTION 1
SERVICING NOTES
MODEL IDENTIFICATION
MODEL
Power Voltage Incdication
US model
AC: 120 V 60 Hz 25 W
AEP, UK models
AC: 230 V - 50/60 Hz 25 W
Fig.1 Method to push the S601
NOTES ON LASER DIODE EMISSION CHECK
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.
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.
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
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)
S601
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.
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.
: LEAD FREE MARK
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
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)
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.
occur such as on IC pins, etc.
•
Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
During normal operation of the equipment, emission of the laser
diode is prohibited unless the upper lid is closed while turning ON
the S601. (push switch type)
The following checking method for the laser diode is operable.
diode is prohibited unless the upper lid is closed while turning ON
the S601. (push switch type)
The following checking method for the laser diode is operable.
•
Method
Emission of the laser diode is visually checked.
Emission of the laser diode is visually checked.
1. Open the upper lid.
2. Push the S601 as shown in Fig.1.
2. Push the S601 as shown in Fig.1.
Note:
Do not push the detection lever strongly, or it may be bent or damaged.
3. Press the
B
button.
4. Check the object lens for confirming normal emission of the
laser diode. If not emitting, there is a trouble in the automatic
power control circuit or the optical pick-up.
power control circuit or the optical pick-up.
In this operation, the object lens will move up and down 2
times along with inward motion for the focus search.
Power voltage indication
– Bottom View –