Sony STRV-5500 Service manual

STR-V5500
SERVICE MANUAL
STR-V5500 is RECEIVER section in MHC-V5500.
Manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY”, “PRO LOGIC” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation.
Amplifier section
Continuous RMS power output China model 100+100 watts
6 ohms at 1 kHz, 10% THD (240V AC supply) 85+85 watts 6 ohms at 1 kHz, 10% THD (220V AC supply)
Other models 100+100 watts (6 ohms
at 1 kHz,10% THD)
Peak music power output
1500 watts (reference)
Inputs MD/VIDEO 1 IN (phono
jacks): voltage 250 mV, impedance 47 kilo ohms AV INPUT AUDIO (phono jacks): voltage 250 mV, impedance 47 kilo ohms MIX MIc 1/2 (phone jack): sensitivity 1 mVm, impedance 10 kilo ohms
Outputs MD/VIDEO OUT
(phono jacks): voltage 250 mV, impedance 1 kilo ohm PHONES (stereo phone jack): accepts headphones of 8 ohms or more. SPEAKER: accepts impedance of 6 to 16 ohms SUPER WOOFER: Voltage 1 V, impedance 1 kilo ohm
Video section
Inputs AV INPUT VIDEO
(phono jack): 1 Vp-p, 75 ohms VIDEO IN (phono jack): 1 Vp-p, 75 ohms
Outputs MONITOR OUT (phono
jack): 1 Vp-p, 75 ohms VIDEO OUT (phono jack): 1 Vp-p, 75 ohms S-VIDEO (4-pin/mini­DIN jack): Y: 1 Vp-p, unbalanced, sync negative C: 0.286 Vp-p, load impedance 75 ohms
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5-108.0 MHz Antenna terminals 75 ohm unbalanced Intermediate frequency 10.7 MHz
AM tuner section
Tuning range Thai models: 531-1,602 kHz
(with the AM tuning interval set at 9 kHz) 530-1,710 kHz (with the AM tuning interval set at 10 kHz)
E Model
Chinese Model
Other models: MW
531-1,602 kHz (with the MW tuning interval set at 9 kHz) 530-1,710 kHz (with the MW tuning interval set at 10 kHz) SW
5.95-17.90 MHz (with the SW tuning
interval set at 5 kHz) Intermediate frequency 450 kHz Antenna AM loop antenna
External antenna terminal
Design and specifications are subject to change withouto notice.
MICROFILM
FM STEREO/FM-AM RECEIVER
TABLE OF CONTENTS
1. GENERAL ······································································ 3
2. TEST MODE ·································································· 5
3. DIAGRAMS
3-1. Circuit Boards Location ····················································· 6 3-2. Printed Wiring Board — Panel Section —·························7 3-3. Schematic Diagram — Panel Section — ··························· 9 3-4. Printed Wiring Board — Main Section — ······················· 12 3-5. Schematic Diagram — Main Section — ·························· 15 3-6. Printed Wiring Board and Schematic Diagram
— Power Section —·························································19 3-7. IC Pin Function ································································ 23 3-8. IC Block Diagrams ··························································· 24
4. EXPLODED VIEWS
4-1. Main Section····································································· 25 4-2. Panel Section ···································································· 26
5. ELECTRICAL PARTS LIST ··································· 27
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.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tentalum capacitor may be damaged by heat.
— 2 —
— FRONT PANEL —
SECTION 1
GENERAL
12345678 9!º!¡ !™
#•
#¶ #§
#∞ #¢
#™
1 KARAOKE PON/MPX button 2 SURROUND button 3 EFFECT ON/OFF button 4 MUSIC button 5 MOVIE button 6 GAME button 7 P FILE button 8 MEMO button 9 DBFB buttonVOLUMEGROOVE button !™ TUNER BAND buttonSTEREO/MONO buttonFUNCTION button !∞ MIC LEVEL/ECHO VOLMIX MIC 1 jackMIX MIC 2 jack !• PHONES jackEDIT button
!∞ !§
!¶ !•
@™ @∞@•
PLAY MODE button1/ALL DISCS button @™ REPEAT buttonHIGH FREQ buttonENTER/NEXT button @∞ MULTI JOG STATION dialLOW FREQ buttonMEMORY button @• TUNING MODE buttonFLASH buttonLOOP buttonWAVE button #™ AV INPUT jackCLOCK TIMER SET buttonTIMER SELECT button #∞ KEY CONTROL ˜ buttonKEY CONTROL n buttonDISPLAY/DEMO button #• POWER button
— 3 —
— BACK PANEL —
$™
ANTENNA terminalSYSTEM CONTROLMD/VIDEO 1 jack $™ FRONT SPEAKER terminalSUPER WOOFER jackVIDEO OUT jack $∞ VOLTAGE SELECTOR switch
$∞
— 4 —
SECTION 2
D
TEST MODE
SECTION 3 DIAGRAMS
FL DISPLAY/KEY LED TEST MODE
Press the REPEAT, ENTER/NEXT and SURROUND buttons simultaneously.
1. All FL segments and all LEDs turn on.
2. To access the microprocessor information, press the P FILE key . Each pressing of the P FILE ke y adv ances the display on the FL tube in the following sequence.
STR microprocessor version number HCD microprocessor version number
VCD microprocessor version number (VCD model only)
Model name
Destination
3. To check the encoder, press the MUSIC key. The following
display appears on the FL tube. "K0J0V0"
The number after K indicates the number of times that the key is pressed. The key which was pressed in the past, is not counted. The key which is pressed hereafter is counted. Pressing any key increases the number after K.
The number after J indicates the number of rotations that the JOG dial is rotated. Turning the JOG dial clockwise increases the number after J. Turning the JOG dial counter-clockwise decreases the number after J.
The number after V indicates the number of rotations that the VOLUME dial is rotated. Turning the VOLUME dial clockwise increases the number after V. Turning the VOLUME dial counter­clockwise decreases the number after V.
To exit this mode, perform the "Cold Reset" (reset clearing memory) as described below.
GENERAL TEST MODE (INCLUDING AMPLIFIER AND TUNER)
Press the REPEAT, ENTER/NEXT and CLOCK TIMER SET buttons simultaneously while the main power is on.
1. Sound volume display segment starts blinking.
2. The tuning enters the PRESET mode.
3. Rotating the VOLUME control clockwise increases the v olume level to maximum. Rotating the VOLUME control counter-clockwise decreases the volume level to minimum.
4. Pressing the MUSIC key decreases the equalizer curve to minimum and "EQ CHECK" appears on the display. Pressing the MOVIE key increases the equalizer curve to maximum. Pressing the GAME key makes the equalizer curve flat.
5. Pressing any of the DBFB, GROOVE or SURROUND key disappears "EQ CHECK" on the display.
To exit this mode, perform the "Cold Reset" (reset clearing memory) as described below.
AGING MODE
1. CD aging mode To ex ecute the CD aging, set the three discs to the CD tray and set the function to CD. REPEAT, ENTER/NEXT and LOOP buttons simultaneously. The CD a ging mode starts and the disc calendar starts blinking.
2. Tape aging mode To ex ecute the tape aging, set the two tapes to the tape A and B drives. Set the function to T APE. Press the REPEAT , ENTER/ NEXT and LOOP buttons simultaneously. Press the A forward key to start the tape aging mode. "AGING" appears on the display.
CD SERVICE MODE
Turn on the main power. Press the REPEAT, ENTER/NEXT and KARAOKE PON/MPX buttons simultaneously. VACS toggles between ON and OFF.
VACS LEVEL DISPLAY
Turn on the main power. Press the EDIT, ENTER/NEXT and KARAOKE PON/MPX buttons simultaneously. VACS level appears on the display.
CD SHIP MODE
Turn on the main power. Press the PLAY MODE and POWER buttons simultaneously. The main power is turned off and LOCK appears on the display.
TUNER STEP CHANGE
Turn on the main power. Set the function to TUNER. Select MW band from the present tuning. Turn off the main power. Press the ENTER/NEXT and POWER buttons simultaneously. The main power is turned on and the changed step appears on the display.
MD/VIDEO 1 FUNCTION CHANGE
Press the FUNCTION and POWER buttons simultaneously while the main power is off. When the function is set to VIDEO 1, the function is changed to MD and MD appears on the display. When the function is set to MD, the function is changed to VIDEO 1 and VIDEO 1 appears on the display.
COLD RESET (Reset which clears memory.)
Press the REPEAT, ENTER/NEXT and DISPLAY buttons simultaneously at any time. The system is reset while clearing memory.
HOT RESET (Reset which does not clear memory.)
Press the REPEAT, ENTER/NEXT and TIMER SELECT buttons simultaneously at any time. The system is reset without clearing memory.
3-1. CIRCUIT BOARDS LOCATION
SEC BOARD
PANEL BOARD
AVIN BOARD
JOG BOARD
VOLUME BOARD
PRI BOARD
DUMMY BOARD
ENCAPSULATED COMPONENT
MAIN BOAR
AMP BOARD
MIC ECHO BOARD
— 5 —
— 6 —
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