Sony HCD-ZT4 Service Manual

SERVICE MANUAL
Ver. 1.0 2008.06
• HCD-ZT4 is the amplifi er, USB, CD player, tape
deck and tuner section in LBT-ZT4.
AUDIO POWER SPECIFICATION
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
With 6 ohm loads, both channels driven,
from 120 Hz – 10 kHz; rated 110 watts per
channel minimum RMS power, with no
more than 0.7% total harmonic distortion
from 250 miliwatts to rated output.
Amplifier section
The following are measured at AC 120 V
60 Hz
Front speaker
RMS output power (reference):
180 W + 180 W (per channel at 6 ,
1 kHz, 10% THD)
Subwoofer
RMS output power (reference): 180 W
(at 6 , 100 Hz, 10% THD)
Inputs
AUDIO INPUT: sensitivity
800 mV, impedance 47 kilohms
MIC: sensitivity 1 mV, impedance
10 kilohms
(USB) port: Type A
DMPORT
Outputs
PHONES: accepts headphones of 8
more
FRONT SPEAKER: accepts impedance of
6
SUBWOOFER: accepts impedance of 6
Sony Corporation
9-889-196-01
2008F05-1 Audio Business Group
©
2008.06 Published by Sony Techno Create Corporation
CD
Section
Tape deck
Section

SPECIFICATIONS

USB section
Supported bit rate
MP3 (MPEG 1 Audio Layer-3):
32 – 320 kbps, VBR
WMA: 32 – 192 kbps, VBR
AAC: 48 – 320 kbps
Sampling frequencies
MP3 (MPEG 1 Audio Layer-3):
32/44.1/48 kHz
WMA: 44.1 kHz
AAC: 44.1 kHz
Transfer speed
Full-Speed
Supported USB device
Mass Storage Class
Maximum current
500 mA
CD player section
System: Compact disc and digital audio
system
Laser Diode Properties
Emission Duration: Continuous
Laser Output*: Less than 44.6 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 7 mm aperture.
Frequency response: 20 Hz – 20 kHz
or
Signal-to-noise ratio: More than 90 dB
Dynamic range: More than 88 dB
Tape deck section
Recording system: 4-track 2-channel, stereo
HCD-ZT4
Model Name Using Similar Mechanism
Mechanism Type
Optical Pick-up Block Name
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
COMPACT DISC DECK RECEIVER
US Model
NEW
CDM88A-K6BD93-WOD
KSM-213DCP
NEW
TCM-J1 or CS-21SC-900TP
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range:
87.5 – 108.0 MHz (100 kHz step)
Antenna: FM lead antenna
Antenna terminals: 75 ohms unbalanced
Intermediate frequency: 10.7 MHz
AM tuner section
Tuning range
530 – 1,710 kHz (with 10 kHz tuning
interval)
531 – 1,710 kHz (with 9 kHz tuning
interval)
Antenna: AM loop antenna, external antenna
terminal
Intermediate frequency: 450 kHz
General
Power requirements
AC 120 V,60 Hz
Power consumption
225 W
Dimensions (w/h/d) (excl. speakers)
Approx. 231 × 361 × 437.5 mm
(9 1/8 × 14 1/4 × 17 1/4 inch)
Mass (excl. speakers)
10.0 kg (22 lb 1 oz)
Design and specifications are subject to
change without notice.