Sony HCD-LV80 / LBT-LV80 Service Manual ▷ View online
1
HCD-LV80
E Model
SPECIFICATIONS
COMPACT Hi-Fi STEREO SYSTEM
— Continued on next page —
Model Name Using Similar Mechanism
HCD-VR50/VR70
CD Mechanism Type
CDM37L-5BD34L
Base Unit Type
BU-5BD34L
Optical Pick-up Type
KSS-213D/Q-NP
Model Name Using Similar Mechanism
NEW
Tape Transport Mechanism Type
TCM-230PWR12
CD
SECTION
TAPE DECK
SECTION
SERVICE MANUAL
HCD-LV80 is the tuner, deck, CD and
amplifier section in LBT-LV80.
amplifier section in LBT-LV80.
Amplifier section
The following measured at AC 120/220/240 V,
50/60 Hz
DIN power output (Rated)
50/60 Hz
DIN power output (Rated)
240 + 240 watts
(4 ohms at 1 kHz, DIN)
(4 ohms at 1 kHz, DIN)
Continuous RMS
power output (Reference)
300 + 300 watts
(4 ohms at 1 kHz, 10 %
THD)
Inputs
PHONO IN (phono jacks):
PHONO IN (phono jacks):
sensitivity 3 mV,
impedance 47 kilohms
MIC 1/2 (phono jack):
MIC 1/2 (phono jack):
sensitivity 1 mV,
impedance 10 kilohms
VIDEO 1 IN (phono jacks):sensitivity 250 mV,
impedance 47 kilohms
VIDEO 2 IN (phono jacks):sensitivity 250 mV,
VIDEO 1 IN (phono jacks):sensitivity 250 mV,
impedance 47 kilohms
VIDEO 2 IN (phono jacks):sensitivity 250 mV,
impedance 47
kilohms
MD IN (phono jacks):
sensitivity 450 mV,
impedance 47 kilohms
Outputs
PHONES (stereo phone jack):
PHONES (stereo phone jack):
accepts headphones of
8 ohms or more
8 ohms or more
VIDEO OUT (phono jack): voltage 250 mV,
impedance 1 kilohm
MD OUT (phono jacks):
impedance 1 kilohm
MD OUT (phono jacks):
voltage 250 mV,
impedance 1 kilohm
FRONT SPEAKER :
accepts impedance of 4 to
16 ohms
16 ohms
Video section
Inputs
VIDEO1 IN (phono jacks): 1 V p-p, 75 ohms
VIDEO2 IN (phono jacks): 1 V p-p, 75 ohms
VIDEO1 IN (phono jacks): 1 V p-p, 75 ohms
VIDEO2 IN (phono jacks): 1 V p-p, 75 ohms
Outputs
VIDEO OUT (phono jack): 1 V p-p, 75 ohms
S-VIDEO OUT (4-pin/mini-DIN jack):
VIDEO OUT (phono jack): 1 V p-p, 75 ohms
S-VIDEO OUT (4-pin/mini-DIN jack):
Y: 1 V p-p, unbalanced,
Sync negative,
C: 0.286 V p-p,
load impedance 75 ohms
Sync negative,
C: 0.286 V p-p,
load impedance 75 ohms
VIDEO CD/CD player section
System
Compact disc, digital
audio and video system
audio and video system
Laser
Semiconductor laser
(
(
λ
= 780 ohm), Emission
duration :
continuous
Laser output
Max. 44.6
µW*
* This output is the value
measured at a
measured at a
distance of
200 mm from the
objective lens surface on
the Optical Pick-up Block
with 7 mm aperture.
objective lens surface on
the Optical Pick-up Block
with 7 mm aperture.
Wavelength
780 - 790 nm
Frequency Response
2 Hz - 20 kHz (
±0.5 dB)
Signal-to-noise ratio
More than 90
dB
Dynamic range
More than 90 dB
CD DIGITAL OUT
(square optical connector jack, rear panel)
Video color system format
(square optical connector jack, rear panel)
Video color system format
NTSC, PAL
Wave length:
660 nm
Output level:
–18
dBm
Tape player section
Recording system
4-track 2-channel stereo
Frequency Response (DOLBY NR OFF)
40 - 13,000 Hz (
±3 dB),
using a Sony TYPE I
cassette
40 - 14,000 Hz (
cassette
40 - 14,000 Hz (
±3 dB),
using a Sony TYPE II
cassette
cassette
Ver 1.
1
200
3
. 0
7
9-929-222-12
2003G02-1
© 2003.07
Sony Corporation
Home Audio Company
Published by Sony Engineering Corporation
2
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra-
diation exposure.
other than those specified herein may result in hazardous ra-
diation exposure.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
• Notice that the minus side of a tantalum capacitor may be
damaged 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.
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.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on
the rear exterior.
a CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on
the rear exterior.
This caution
label is located
inside the unit.
label is located
inside the unit.
Tuner section
FM Stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 - 108.0 MHz (50 kHz
step)
step)
Antenna:
FM Wire antenna
Antenna terminals
75 ohm unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
Middle Eastern models:
Middle Eastern models:
531 - 1,602 kHz (with the
tuning interval set at
9 kHz)
tuning interval set at
9 kHz)
Other models:
531 - 1,602 kHz (with the
tuning interval set at
9 kHz)
530 - 1,701 kHz (with the
tuning interval set at
10 kHz)
tuning interval set at
9 kHz)
530 - 1,701 kHz (with the
tuning interval set at
10 kHz)
Antenna
AM loop antenna,
External antenna
terminals
External antenna
terminals
Intermediate frequency
450
kHz
General
Power Requirements
120 V, 220 V, or 230 - 240
V AC, 50/60 Hz
Adjustable with voltage
selector
V AC, 50/60 Hz
Adjustable with voltage
selector
Power Consumption
300 watts
Dimensions(w/h/d)
Approx. 356
× 423 × 446
incl. projecting parts and
controls
controls
Mass
Approx. 15.9 kg
Approx. 15.9 kg
Supplied Accessories
AM loop antenna (1)
FM wire antenna (1)
Speaker cords (2)
FM wire antenna (1)
Speaker cords (2)
Remote (1)
R6(size AA) batteries (2)
Video connecting cable
(1)
Video connecting cable
(1)
Design and specifications are subject to change
without notice.
3
MODEL
PARTS No.
MY, SP model
4-227-751-2s
EA model
4-227-751-3s
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
OR BASE UNIT
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.
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, ob-
serve 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, ob-
serve from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output four times.
that the S curve waveform is output four times.
MODEL IDENTIFICATION
— BACK PANEL —
— BACK PANEL —
• Abbreviation
SP
: Singapore model
EA
: Saudi Arabia model
MY
: Malaysia model
Parts No.
4
8. EXPLODED VIEWS
8-1. Case and Back Panel Section .............................................. 66
8-2. Front Panel Section 1 .......................................................... 67
8-3. Front Panel Section 2 .......................................................... 68
8-4. Chassis Section ................................................................... 69
8-5. TC Mechanism Section 1 (TCM230PWR12) ..................... 70
8-6. TC Mechanism Section 2 (TCM230PWR12) ..................... 71
8-7. CD Mechanism Section (CDM37L-5BD34L) .................... 72
8-8. Base Unit Section (BU-5BD34L) ....................................... 73
8-2. Front Panel Section 1 .......................................................... 67
8-3. Front Panel Section 2 .......................................................... 68
8-4. Chassis Section ................................................................... 69
8-5. TC Mechanism Section 1 (TCM230PWR12) ..................... 70
8-6. TC Mechanism Section 2 (TCM230PWR12) ..................... 71
8-7. CD Mechanism Section (CDM37L-5BD34L) .................... 72
8-8. Base Unit Section (BU-5BD34L) ....................................... 73
9. ELECTRICAL PARTS LIST
........................................ 74
1. SERVICING NOTE
.......................................................... 5
2. GENERAL
....................................................................
9
3. DISASSEMBLY
3-1. Front Panel and Video Board .............................................. 11
3-2. Main Board ......................................................................... 11
3-3. Sub Panel ............................................................................ 12
3-4. CD LID Assembly .............................................................. 12
3-5. Tape Mechanism Deck and Cassette LID ........................... 12
3-6. CD Mechanism Deck .......................................................... 13
3-7. Base Unit ............................................................................. 13
3-8. Disc Table ........................................................................... 13
3-2. Main Board ......................................................................... 11
3-3. Sub Panel ............................................................................ 12
3-4. CD LID Assembly .............................................................. 12
3-5. Tape Mechanism Deck and Cassette LID ........................... 12
3-6. CD Mechanism Deck .......................................................... 13
3-7. Base Unit ............................................................................. 13
3-8. Disc Table ........................................................................... 13
4. TEST MODE
..............................................................
14
5. MECHANICAL ADJUSTMENTS
..........................
15
6. ELECTRICAL ADJUSTMENTS
............................... 15
7. DIAGRAMS
7-1. Circuit Boards Location ...................................................... 19
7-2. Block Diagrams
7-2. Block Diagrams
• BD Section ....................................................................... 20
• Deck Section .................................................................... 21
• Main (1/2) Section ........................................................... 22
• Main (2/2) Section ........................................................... 23
• Video Section ................................................................... 24
• Power Section .................................................................. 25
• Display Section ................................................................ 26
• Deck Section .................................................................... 21
• Main (1/2) Section ........................................................... 22
• Main (2/2) Section ........................................................... 23
• Video Section ................................................................... 24
• Power Section .................................................................. 25
• Display Section ................................................................ 26
7-3. Printed Wiring Board – BD Section – ................................. 28
7-4. Schematic Diagram – BD Section – ................................... 29
7-5. Schematic Diagram – Deck Section – ................................. 30
7-6. Printed Wiring Board – Deck Section – .............................. 31
7-7. Printed Wiring Board – Video Section – ............................. 32
7-8. Schematic Diagram – Video (1/3) Section – ....................... 33
7-9. Schematic Diagram – Video (2/3) Section – ....................... 34
7-10. Schematic Diagram – Video (3/3) Section – ..................... 35
7-11. Printed Wiring Board – Main Section – ............................ 36
7-12. Schematic Diagram – Main (1/3) Section – ...................... 37
7-13. Schematic Diagram – Main (2/3) Section – ...................... 38
7-14. Schematic Diagram – Main (3/3) Section – ...................... 39
7-15. Printed Wiring Board – Power Section – ......................... 40
7-16. Schematic Diagram – Power Section – ............................ 41
7-17. Printed Wiring Board – Panel FL Section – ..................... 42
7-18. Schematic Diagram – Panel FL Section – ........................ 43
7-19. Printed Wiring Board – Panel VR Section – .................... 44
7-20. Schematic Diagram – Panel VR Section – ....................... 45
7-21. Printed Wiring Board – TC Panel Section – ..................... 46
7-22. Schematic Diagram – TC Panel Section – ....................... 47
7-23. Printed Wiring Board – CD Panel Section – .................... 48
7-24. Schematic Diagram – CD Panel Section – ....................... 49
7-25. Printed Wiring Board – CD Motor Section – ................... 50
7-26. Schematic Diagram – CD Motor Section – ...................... 51
7-27. Schematic Diagram – Trans Section – ............................. 52
7-28. Printed Wiring Board – Trans Section – ........................... 53
7-29. Schematic Diagram – Leaf SW Section – ........................ 53
7-30. Printed Wiring Board – Leaf SW Section – ..................... 53
7-31. IC Block Diagrams ........................................................... 54
7-32. IC Pin Functions ............................................................... 56
7-4. Schematic Diagram – BD Section – ................................... 29
7-5. Schematic Diagram – Deck Section – ................................. 30
7-6. Printed Wiring Board – Deck Section – .............................. 31
7-7. Printed Wiring Board – Video Section – ............................. 32
7-8. Schematic Diagram – Video (1/3) Section – ....................... 33
7-9. Schematic Diagram – Video (2/3) Section – ....................... 34
7-10. Schematic Diagram – Video (3/3) Section – ..................... 35
7-11. Printed Wiring Board – Main Section – ............................ 36
7-12. Schematic Diagram – Main (1/3) Section – ...................... 37
7-13. Schematic Diagram – Main (2/3) Section – ...................... 38
7-14. Schematic Diagram – Main (3/3) Section – ...................... 39
7-15. Printed Wiring Board – Power Section – ......................... 40
7-16. Schematic Diagram – Power Section – ............................ 41
7-17. Printed Wiring Board – Panel FL Section – ..................... 42
7-18. Schematic Diagram – Panel FL Section – ........................ 43
7-19. Printed Wiring Board – Panel VR Section – .................... 44
7-20. Schematic Diagram – Panel VR Section – ....................... 45
7-21. Printed Wiring Board – TC Panel Section – ..................... 46
7-22. Schematic Diagram – TC Panel Section – ....................... 47
7-23. Printed Wiring Board – CD Panel Section – .................... 48
7-24. Schematic Diagram – CD Panel Section – ....................... 49
7-25. Printed Wiring Board – CD Motor Section – ................... 50
7-26. Schematic Diagram – CD Motor Section – ...................... 51
7-27. Schematic Diagram – Trans Section – ............................. 52
7-28. Printed Wiring Board – Trans Section – ........................... 53
7-29. Schematic Diagram – Leaf SW Section – ........................ 53
7-30. Printed Wiring Board – Leaf SW Section – ..................... 53
7-31. IC Block Diagrams ........................................................... 54
7-32. IC Pin Functions ............................................................... 56
TABLE OF CONTENTS