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HCD-V3900/V5900
E Model
SERVICE MANUAL
COMPACT HI-FI STEREO SYSTEM
MICROFILM
Manufactured under license from Dolby Laboratories
Licensing Corporation.
"DOLBY" and the double-D symbol
aare trademarks
of Dolby Laboratories Licensing Corporation.
Model Name Using Similar Mechanism
HCD-V4800
CD
CD Mechanism Type
CDM37L-5BD21AL
Section
Base Unit Name
BU-5BD21AL
Optical Pick-up Name
KSS-213D/Q-NP
Tape deck
Model Name Using Similar Mechanism
HCD-V4800
Section
Tape Transport Mechanism Type
TCM-220WR2
· This set is the tuner, deck,Video CD and
amplifier section in LBT-V3900/V5900.
-- Continued on next page --
SPECIFICATIONS
Amplifier section
(HCD-V3900)
The following measured at AC 120/240 V, 50 Hz
DIN power output (Rated)
100 + 100 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (Reference)
120 + 120 watts
(6 ohms at 1 kHz, 10 % THD)
The following measured at AC 220 V, 50 Hz
DIN power output (Rated)
90 + 90 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (Reference)
105 + 105 watts
(6 ohms at 1 kHz, 10 % THD)
Peak music power output (Reference)
1,500 watts
(HCD-V5900)
The following measured at AC 120/240 V, 50 Hz
DIN power output (Rated)
120 + 120 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (Reference)
140 + 140 watts
(6 ohms at 1 kHz, 10 % THD)
The following measured at AC 220 V, 50 Hz
DIN power output (Rated)
110 + 110 watts
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (Reference)
130 + 130 watts
(6 ohms at 1 kHz, 10 % THD)
Peak music power output (Reference)
2,000 watts
Inputs
PHONO IN (phono jacks):
sensitivity 3 mV,
impedance 47 kilohms
VIDEO (AUDIO) IN (phono jacks):
sensitivity 250 mV,
impedance 47 kilohms
MIX MIC (phono jack):
sensitivity 1 mV,
impedance 10 kilohms
Outputs
VIDEO (AUDIO) OUT (phono jacks):
voltage 250 mV, impedance 1 kilohm
VIDEO (phono jack):
max. output level 1 Vp-p, unbalanced,
Sync negative, load impedance 75 ohms
S-VIDEO (4-pin/mini-DIN jack):
Y: 1 Vp-p, unbalanced, Sync negative
C: 0.286 Vp-p, load impedance 75 ohms
PHONES (stereo phone jack):
accepts headphones of 8 ohms or more
SPEAKER:
accepts impedance of 6 to 16 ohms
Video CD/CD player section
System Compact disc digital audio and video
system
Laser
Semiconductor laser (= 780 nm)
Emission
duration: continuous
Laser output
Max. 44.6
µW*
* This output is the value measured at a
distance of 200 mm from the 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
Video
Color system format:
NTSC, PAL
Photo : HCD-V5900


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-- 2 --
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
! OR DOTTED LINE WITH
MARK
! 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.
This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.
Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.
The following caution label is located inside the unit.
Tape player section
Recording system
4-track 2-channel stereo
Frequency response (DOLBY NR OFF)
60 ­ 13,000 Hz (±3 dB), using a Sony TYPE I cassette
60 ­ 14,000 Hz (±3 dB), using a Sony TYPE II cassette
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 ­ 108.0 MHz (50 kHz step)
Antenna
FM wire antenna
Antenna terminals
75 ohm unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
531 ­ 1,602 MHz (with the tuning interval set at 9 kHz)
530 ­ 1,710 MHz (with the tuning interval set at 10 kHz)
Antenna
AM loop antenna, External antenna terminals
Intermediate frequency
450 kHz
General
Power requirements
110 ­ 120 V or 220 ­ 240 V AC, 50/60 Hz
adjustable with voltage selector
Power consumption
(HCD-V3900) 245 watts
(HCD-V5900) 255 watts
Dimensions (w/h/d)
Approx. 355
× 425 × 435 mm incl.
projecting parts and controls
Mass
(HCD-V3900) Approx. 16.3 kg
(HCD-V5900) Approx. 16.8 kg
Supplied accessories
AM loop antenna (1)
Remote (1)
RM-SV808S (LBT-V3900)
RM-SV4800S (LBT-V5900)
Size AA batteries (2)
FM wire antenna (1)
Speaker cords (2)
Video cable (1)
Design and specifications are subject to change without notice.


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-- 3 --
TABLE OF CONTENTS
1.
GENERAL ······································································ 4
2.
DISASSEMBLY ····························································· 7
3.
TEST MODE ······························································· 15
4.
MECHANICAL ADJUSTMENTS ························· 18
5.
ELECTRICAL ADJUSTMENTS
DECK Section ··································································· 18
CD Section ········································································· 21
VIDEO Section ·································································· 22
6.
DIAGRAMS
6-1. Block Diagram -- BD Section -- ····································· 23
6-2. Block Diagram -- VIDEO Section -- ······························ 25
6-3. Block Diagram -- MAIN Section -- ································ 27
6-4. Circuit Board Location ······················································ 29
6-5. Schematic Diagram -- BD Section -- ······························ 31
6-6. Printed Wiring Board -- BD Section -- ··························· 33
6-7. Schematic Diagram -- CD MOTOR Section -- ··············· 35
6-8. Printed Wiring Board -- CD MOTOR Section -- ············ 37
6-9. Schematic Diagram -- AUDIO Section -- ······················· 39
6-10. Printed Wiring Board -- AUDIO Section -- ···················· 41
6-11. Printed Wiring Board -- MAIN Section -- ······················ 43
6-12. Schematic Diagram -- MAIN Section (1/3) -- ················ 45
6-13. Schematic Diagram -- MAIN Section (2/3) -- ················ 47
6-14. Schematic Diagram -- MAIN Section (3/3) -- ················ 49
6-15. Printed Wiring Board -- VIDEO Section -- ···················· 51
6-16. Schematic Diagram -- VIDEO Section (1/3) -- ·············· 53
6-17. Schematic Diagram -- VIDEO Section (2/3) -- ·············· 55
6-18. Schematic Diagram -- VIDEO Section (3/3) -- ·············· 57
6-19. Schematic Diagram -- PANEL Section -- ······················· 59
6-20. Printed Wiring Board -- PANEL Section -- ···················· 61
6-21. Schematic Diagram -- VIDEO OUT Section -- ·············· 63
6-22. Printed Wiring Board -- VIDEO OUT Section -- ··········· 65
6-23. Schematic Diagram -- AMP KEY CONTROL Section --67
6-24. Printed Wiring Board
-- AMP/KEY CONTROL Section -- ······························· 69
6-25. Schematic Diagram -- POWER Section -- ······················ 71
6-26. Printed Wiring Board -- POWER Section -- ··················· 73
6-27. IC Pin Function Description ·············································· 74
6-28. IC Block Diagrams ···························································· 83
7.
EXPLODED VIEWS ················································· 88
8.
ELECTRICAL PARTS LIST ·································· 97
SERVICING NOTES
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.
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 emis-
sion, observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the "S curve check" in "CD section adjustment" and check
that the S curve waveforms is output three times.
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 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.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT


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-- 4 --
SECTION 1
GENERAL
12
3
4
6
7
89
%ª ^º
%¶ %·
5
!TM
!
!£ !¢
@¡ @TM @£
#¡ #TM #£
&TM
^TM
^
#
#· #¶
B
B
A
!ª @º
@¢ @
@§ @¶
@ª #º
%¢ %
%¡ %TM
$
$TM
A
1
1/u button
2
DISPLAY/DEMO button
3
SPECTRUM ANALYZER button
4
ENTER/NEXT button
5
TUNER MEMORY button
6
TUNING MODE button
7
TUNER/BAND button
8
TUNING ­ button
9
TUNING + button
STEREO/MONO button
!TM
EFFECT button
GROOVE button
FUNCTION button
!
VOLUME knob
SUPER WOOFER button
SUPER W MODE
GEQ button
DECK B
ª (play) button
DECK B
· (play) button
DECK B
p (stop) button
@TM
DECK B
0 (backward) button
DECK B
) (forward) button
DECK B
P (pause) button
@
DECK B
r REC button
H SPEED DUB button
CD SYNC button
DECK B
6 EJECT button
CD
6 OPEN button
CD
· (play) button
DISK SKIP button
#TM
CD
P (pause) button
CD
p (stop) button
CD
) (forward) button
#
AMS ± knob
CD
0 (backward) button
CD FLASH button
CD LOOP button
CD NON-STOP button
DISC 1 button
DISC 2 button
$TM
DISC 3 button
DISC 4 button
DISC 5 button
$
DECK A
6 EJECT button
DIRECTION button
DOLBY NR button
DECK A
p (stop) button
DECK A
0 (backward) button
DECK A
) (forward) button
DECK A
ª (play) button
%TM
DECK A
· (play) button
PHONES jack
MIC1, MIC2 jack
%
MIC LEVEL, ECHO LEVEL knobs
SLEEP button
DAILY 1 button
DAILY 2 button
t / CLOCK SET button
REC button
WAVE button
^TM
SURROUND button
P FILE MEMORY button
GEQ CONTROL button
^
ENTER button
KEY CONTROL (
n) button
KEY CONTROL (
~) button
KARAOKE PON/MPX button
PLAY MODE button
REPEAT button
EDIT button
&TM
1/ALL DISCS button
­ FRONT PANEL ­


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-- 5 --
/,/
/,fl
/,fi
/,¤
/,<
IN
OUT
//, /,·
/,<
/,°
­ BACK PANEL ­
This section is extracted
from instruction manual.
/,/
ANTENNA terminal
/,¤
VOLTAGE SELECTOR switch (E, AR model)
/,<
SPEAKER terminal
/,fi
VIDEO (AUDIO) jack
/,fl
PHONO jack
/,°
SYSTEM SELECT
/,·
S VIDEO OUT
//,
VIDEO OUT