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STR-V5550/V7770
SERVICE MANUAL
This set is the tuner and amplifier
section in MHC-V5550/V7770AV.
Amplifier section
The following measured at AC 230V 50/60 Hz
DIN power output (Rated) (FRONT)
95 + 95W (6 Ω at 1kHz DIN)
Continuous RMS power output (Reference)
FRONT SPEAKER: 110 + 110W
(6 Ω at 1kHz, 10% THD)
CENTER SPEAKER: 55W
(8 Ω at 1kHz, 10% THD) (V7770)
REAR SPEAKER: 35 + 35W
(8 Ω at 1kHz, 10% THD) (V7770)
The following measured at AC 120, 220, 240V 50/60Hz
DIN power output (Rated) (FRONT)
100 + 100W (6 Ω at 1kHz DIN)
Continuous RMS power output (Reference)
FRONT SPEAKER: 120 + 120 W
(6 Ω at 1kHz, 10% THD)
CENTER SPEAKER: 60W
(8 Ω at 1kHz, 10% THD) (V7770)
REAR SPEAKER: 40 + 40W
(8 Ω at 1kHz 10% THD) (V7770)
Peak music power output 2400W (V7770)
2000W (V5550)
Inputs
MD/VIDEO 1 IN (phone jacks): voltage
450/250mV, impedance 47kΩ
AV INPUT AUDIO (phone jacks): voltage
250mV, impedance 47kΩ
MIX MIC 1/2 (phone jack): sensitivity 1mV,
impedance 10kΩ
Output
MD/VIDEO 1 OUT (phono jacks): voltage
450/250mV, impedance 1kΩ
PHONES (stereo phone jack): accepts
headphones of 8Ω or more.
FRONT SPEAKER:
accepts impedance of 6 to 16Ω
CENTER SPEAKER:
accepts impedance of 8 to 16Ω (V7770)
REAR SPEAKER:
accepts impedance of 8 to 16Ω
SUPER WOOFER:
Voltage 1V, impedance 1kΩ
MICROFILM
Photo : STR-V7770
SPECIFICATIONS
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
Aerial
Aerial terminals
Intermediate frequency
AM tuner section
Tuning range
Thai models:
Other models:
Intermediate frequency
Antenna
General
Power requirements
Chinese, Thai models:
Other models:
Power consumption
Dimensions (w/h/d)
Mass
Design and specifications are subject to change without notice.
FM STEREO/FM-AM RECEIVER
E Model
Chinese Model
87.5 – 108.0MHz
FM lead aerial
75Ω unbalanced
10.7MHz
531 – 1,602kHz (with the AM tuning
interval set at 9kHz)
530 – 1,710kHz (with the AM tuning
interval set at 10kHz)
MW: 531 – 1,602kHz (with the MW tuning
interval set at 9kHz)
530 – 1,710kHz (with the MW tuning
interval set at 10kHz)
SW: 5.95 – 17.90MHz (with the SW tuning
interval set at 5kHz)
450kHz
AM loop antenna External antenna terminal
220V AC, 50/60Hz
120V or 220V or 230 – 240, 50/60Hz
Adjustable with voltage selector
300W
Approx. 288 × 205 × 375mm
Approx. 8.8kg
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Table of Contents
Related Manuals for Sony STR-V7770
Summary of Contents for Sony STR-V7770
- Page 1 STR-V5550/V7770 SERVICE MANUAL E Model Chinese Model This set is the tuner and amplifier section in MHC-V5550/V7770AV. Photo : STR-V7770 SPECIFICATIONS Amplifier section Tuner section The following measured at AC 230V 50/60 Hz FM stereo, FM/AM superheterodyne tuner DIN power output (Rated) (FRONT) 95 + 95W (6 Ω...
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Page 2: Table Of Contents
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. — 2 —... -
Page 3: General
@¡ !ª !• !¶ !§ !∞ #¶ !¢ #§ @º Photo : STR-V7770 !ª 0 – button 1 MOVIE button 2 MUSIC button @º NON-STOP button 3 GAME button @¡ EDIT button @™ FLASH button 4 PLACE button @£ PLAY MODE button... - Page 4 Rear Panel Photo : STR-V7770 (Chinese model) 1 SYSTEM CONTROL jack 2 ANTENNA terminal 3 CENTER SPEAKER terminal 4 REAR SPEAKER terminal 5 MONITOR OUT jack 6 FRONT SPEAKER terminal 7 MD/VIDEO 1 jack — 4 —...
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Page 5: Disassembly
SECTION 2 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. 2-1. SLIDING PANEL ASSEMBLY 4 Flat type cable (19 core) Slide mechanism 1 Push the OPEN/CLOSE button to open the Sliding panel assembly. × 2 Screw (BVTP 3 5 Sliding panel assembly 3 Holder level •... -
Page 6: Service Mode
SECTION 3 SERVICE MODE Connections and Operations When Used Alone Normally, use the unit connected to the HTC-V5550 as follows. Basically, when servicing the unit, connect the unit as follows. UNIT HTC-V5550 SYSTEM CONTROL 17P AC IN Even when not connected to the HTC-V5550, the unit can operate alone as it mounts a power supply (some functions will however not be available). - Page 7 LED and Fluorescent Indicator Tube All Lit, Key Check Mode (Do not connect the HTC-V5550.) Procedure: Press 1/u button to turn the set ON. Press the OPEN/CLOSE button to open the sliding panel. Press three buttons DELAY , ENTER/NEXT , and DISPLAY/DEMO simultaneously. LEDs and fluorescent indicator tube are all turned on.
- Page 8 • When operations end abnormally: Display of fluorescent display tube Main Cause Display NO DISC ERR DISC 1 is NO DISC from the beginning FOCUS1 ERR Focus is not imposed properly The focus deviated several times after the disc rotated normally FOCUS2 ERR GFS ERROR GFS ERR...
- Page 9 PANEL Aging Mode This mode is used for opening and closing the sliding panel continuously. Setting the aging mode : With the set at standby condition, press FLASH button, ENTER/NEXT button and STEREO/MONO button together. The aging will start and sliding panel will follow aging sequence as described below. •...
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Page 10: Diagrams
SECTION 4 DIAGRAMS 4-1. CIRCUIT BOARDS LOCATION PRIMARY board SECONDARY board ENCAPSULATED COMPONENT CONNECTOR board (V7770 MODEL) SURR SPK board SURR AMP board HEADPHONE board (V7770 MODEL) POWER AMP board LOADING PANEL board MIC / ECHO board MOTOR board FRONT AV board MAIN board PANEL board DETECTOR board... -
Page 11: Block Diagrams
STR-V5550/V7770 4-2. BLOCK DIAGRAMS — MAIN SECTION — VIDEO VOLUME IC111(1/2) IC111(2/2) L-CH SELECT R-CH(CD R) SWITCH MUTE MICON MD/V1 R-CH(PB R) Q183 INTERFACE CN101 POWER R-CH SYSTEM IC113(2/2) R-CH MUTE SECTION CONTROL 32 34 R-CH(REC R) HTC-V5550 DBFB SELECTOR IIC DATA DOLBY PRO-LOGIC Q132... -
Page 12: Main (1/2) Section (V7770 Model)
STR-V5550/V7770 – POWER SECTION – J781 RY781 VIDEO VIDEO OUT SUPER WOOFER V7770 MODEL POWER AMP IC4001(1/2) TB201 RY741 C OUT CENTER SPEAKER OVER LOAD POWER AMP Q4002 IC4001(2/2) S OUT REAR SPEAKER OVER LOAD D746 Q4052 R-CH V5550 MODEL R-CH MAIN D761... - Page 13 Waveforms THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. – DISPLAY Section – (In addition to this, the necessary note is printed in each block.) For schematic diagrams. For printed wiring boards. 5.5Vp-p Note: Note: • X : parts extracted from the component side. •...
- Page 14 STR-V5550/V7770 4-3. PRINTED WIRING BOARD — MAIN SECTION — • Refer to page 10 for Circuit Boards Location. V7770 V7770 • Semiconductor Location Ref. No. Location D101 B-11 D102 B-11 D131 D401 D402 D403 V5550 D742 D743 F-10 D746 F-11 D751 F-11 D752...
- Page 15 STR-V5550/V7770 4-4. SCHEMATIC DIAGRAM — MAIN (1/2) SECTION (V5550 MODEL) — • Refer to page 47 for IC Block Diagrams. — 19 — — 20 —...
- Page 16 STR-V5550/V7770 4-5. SCHEMATIC DIAGRAM — MAIN (1/2) SECTION (V7770 MODEL) — • Refer to page 17 for Printed Wiring Board.. • Refer to page 46 to 47 for IC Block Diagrams. — 21 — — 22 —...
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Page 17: Schematic Diagram - Main (2/2) Section
STR-V5550/V7770 4-6. SCHEMATIC DIAGRAM — MAIN (2/2) SECTION — • Refer to page 17 for Printed Wiring Board. • Refer to page 47 for IC Block Diagrams. VG REG The components identified by mark ! or dotted line with mark ! are critical for safety. -
Page 18: Schematic Diagram - Power Amp Section
STR-V5550/V7770 4-7. SCHEMATIC DIAGRAM — POWER AMP SECTION — The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. — 25 — — 26 —... -
Page 19: Printed Wiring Board - Power Amp Section
STR-V5550/V7770 4-8. PRINTED WIRING BOARD — POWER AMP SECTION — • Refer to page 10 for Circuit Boards Location. V7770 V7770 V5550 V7770 V7770 — 27 — — 28 —... -
Page 20: Schematic Diagram - Display Section
STR-V5550/V7770 4-9. SCHEMATIC DIAGRAM — DISPLAY SECTION — • Refer to page 48 for IC Block Diagrams. • Refer to page 16 for Waveform. — 29 — — 30 —... -
Page 21: Printed Wiring Board - Display Section
STR-V5550/V7770 4-10. PRINTED WIRING BOARD — DISPLAY SECTION — • Refer to page 10 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D501 D502 D504 D505 D506 D507 V5550 D509 D511 V7770 V7770TH D512 D513 V7770 D514 D515 D516 D517 V5550... -
Page 22: Schematic Diagram - Sliding Panel Section
STR-V5550/V7770 4-11. SCHEMATIC DIAGRAM — SLIDING PANEL SECTION — • Refer to page 48 for IC Block Diagrams. — 33 — — 34 —... -
Page 23: Printed Wiring Board - Sliding Panel Section
STR-V5550/V7770 4-12. PRINTED WIRING BOARD — SLIDING PANEL SECTION — • Refer to page 10 for Circuit Boards Location. — 35 — — 36 —... -
Page 24: Schematic Diagram - Surround Amp Section
STR-V5550/V7770 4-13. SCHEMATIC DIAGRAM — SURROUND AMP SECTION — The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. — 37 — — 38 —... -
Page 25: Printed Wiring Board - Surround Amp Section
STR-V5550/V7770 4-14. PRINTED WIRING BOARD — SURROUND AMP SECTION — • Refer to page 10 for Circuit Boards Location. — 39 — — 40 —... -
Page 26: Printed Wiring Board - Trans Section
STR-V5550/V7770 4-15. PRINTED WIRING BOARD — TRANS SECTION — • Refer to page 10 for Circuit Boards Location. V7770 — 41 — — 42 —... -
Page 27: Schematic Diagram - Trans Section
STR-V5550/V7770 4-16. SCHEMATIC DIAGRAM – TRANS SECTION – The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. — 43 —... -
Page 28: Schematic Diagram - Av/Mic Section
STR-V5550/V7770 4-17. SCHEMATIC DIAGRAM – AV/MIC SECTION – • Refer to page 48 for IC Block Diagrams. — 44 —... -
Page 29: Printed Wiring Board - Av/Mic Section
STR-V5550/V7770 4-18. PRINTED WIRING BOARD – AV/MIC SECTION – • Refer to page 10 for Circuit Boards Location. — 45 —... -
Page 30: Ic Block Diagrams
4-19. IC BLOCK DIAGRAMS • MAIN BOARD IC300 LV1041M R BPF2 L BPF2 RECT RECT LOGIC LOGIC RECT R BPF1 RECT L BPF1 LOGIC LOGIC RT IN S DC OUT C DC OUT R DC OUT LT IN L DC OUT CONTROL DC CUT V REF... - Page 31 IC401 M65850P OSCILLATOR LPF2 1/2 VCC CLOCK AUTO MAIN 20KBIT RESET RESET CONTROL SRAM LPF1 IC851 µPC1237HA OVER LOAD DET MUTE OFFSET DET LATCH/ AUTORESET AC OFF — 47 —...
- Page 32 • PANEL BOARD IC505 µPD4053BC IC506 BA3833F-E2 RESET RESET 18 RESET B.COM OPEN A.COM REFFERENCE PREF 17 f01 CURRENT C.COM OPEN LINE 16 f02 LINE 15 f03 OPEN BIAS 13 f Bias 12 VCC 11 NC 10 NC • MOTOR BOARD •...
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Page 33: Ic Pin Function
4-20. IC PIN FUNCTION • IC501 SYSTEM CONTROL (uPD780016AYGF-020-3BA) Pin No. Pin Name Description — Not used LEVEL A Surround level A signal output LEVEL B Surround level B signal output PROLOGIC RLY — Not used DBFB B2 DBFB level 2 signal output DBFB B1 DBFB level 1 signal output TA MUTE... - Page 34 Pin No. Pin Name Description AV IN AV INPUT (VIDEO 2) switch input SENSOR IN Sliding (panel) sensor signal input SIRCS IN Remote sensor signal input SPEANE RST Spectrum analyzer reset output — — Ground — — SOFT Soft test terminal Audio indicator output MOVIE A MOVIE G...
- Page 35 Pin No. Pin Name Description — Ground MOTOR1 Panel motor control output MOTOR2 PANEL OPEN Panel open switch output PANEL CLOSE Panel close switch output ST. MUTE ST mute signal output STEREO Stereo detection input for tuner TUNED Tuner detection input for tuner Tuner PLL latch output DATA IN Tuner PLL data input...
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Page 36: Exploded Views
SECTION 5 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number When indicating parts by reference number, have some differences from the original one. in the exploded views are not supplied. please include the board name. -
Page 37: Front Panel Section
4-932-810-11 CUSHION (FL) 4-977-358-11 CUSHION * 63 4-900-849-01 HOLDER (FL) * 64 1-669-957-11 FRONT AV BOARD 4-962-708-11 EMBLEM (4-A), SONY 4-951-620-01 SCREW (2.6 × 8), +BVTP 4-900-845-01 BRACKET SLIDER * 59 A-4414-708-A MIC/ECHO BOARD, COMPLETE * 66 1-669-964-11 DETECTOR BOARD... -
Page 38: Slide Mechanism Section
5-3. SLIDE MECHANISM SECTION M891 supplied not supplied not supplied not supplied supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 4-900-844-01 LEVEL SLIDER 4-900-864-01 BRACKET TOP 4-951-620-01 SCREW (2.6X8), +BVTP 4-900-847-01 GEAR (2) X-4950-394-1 HOLDER (L) ASSY 3-344-059-01 BELT (L) X-4950-395-1 HOLDER (R) ASSY * 111... -
Page 39: Circuit Boards And Back Panel Section
5-4. CIRCUIT BOARDS AND BACK PANEL SECTION IA MODEL SP, MY MODEL TH, IA, CH MODEL HK MODEL not supplied T901 M901 not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks * 151 A-4414-198-A MAIN BOARD, COMPLETE (V5550) 4-970-381-11 FOOT (REAR) * 151 A-4414-215-A MAIN BOARD, COMPLETE (V7770) -
Page 40: Electrical Parts List
CONNECTOR FRONT AV SECTION 6 HEADPHONE LOADING PANEL ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • CAPACITORS: • SEMICONDUCTORS parts list may be different from the parts uF: µF In each case, u: µ, for example: specified in the diagrams or the components •... - Page 41 LOADING PANEL MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < DIODE > R661 1-249-429-11 CARBON 1/4W R662 1-249-429-11 CARBON 1/4W D631 8-719-046-39 DIODE SEL5821A-TH15 (GROOVE) R663 1-249-429-11 CARBON 1/4W D632 8-719-046-44 DIODE SEL5221S (REW) R665 1-247-843-11 CARBON 3.3K...
- Page 42 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C118 1-162-290-31 CERAMIC 470PF C313 1-126-963-11 ELECT 4.7uF C119 1-162-600-11 CERAMIC 0.0047uF 30% (V7770) C121 1-126-964-11 ELECT 10uF C314 1-126-959-11 ELECT 0.47uF C122 1-162-291-31 CERAMIC 560PF (V7770) C123 1-136-165-00 FILM 0.1uF...
- Page 43 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C343 1-126-934-11 ELECT 220uF C408 1-164-159-11 CERAMIC 0.1uF (V7770) (V5550) C344 1-126-964-11 ELECT 10uF C409 1-104-664-11 ELECT 47uF (V7770) (V5550) C345 1-126-964-11 ELECT 10uF C410 1-136-495-11 FILM 0.068uF (V7770) (V5550)
- Page 44 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < CONNECTOR > < JACK > * CN101 1-764-017-21 HOUSING,CONNECTOR (PC BOARD) 17P J101 1-770-613-11 JACK, PIN 4P (MD/VIDEO 1) CN103 1-774-289-11 PIN, CONNECTOR (PC BOARD) 15P * CN131 1-564-507-11 PLUG, CONNECTOR 4P <...
- Page 45 MAIN Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R155 1-249-441-11 CARBON 100K 1/4W R377 1-249-425-11 CARBON 4.7K 1/4W R156 1-249-417-11 CARBON 1/4W F (V7770) R158 1-249-417-11 CARBON 1/4W F R401 1-249-421-11 CARBON 2.2K 1/4W R159 1-249-441-11 CARBON 100K 1/4W...
- Page 46 MAIN MIC/ECHO Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R742 1-249-439-11 CARBON 1/4W C6011 1-162-282-31 CERAMIC 100PF (V7770) C6012 1-126-157-11 ELECT 10uF R743 1-249-425-11 CARBON 4.7K 1/4W C6014 1-124-257-00 ELECT 2.2uF (V7770) C6015 1-126-160-11 ELECT R744 1-249-437-11 CARBON 1/4W...
- Page 47 MIC/ECHO MOTOR PANEL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R6011 1-249-433-11 CARBON 1/4W < CAPACITOR > R6012 1-247-881-00 CARBON 120K 1/4W R6013 1-249-433-11 CARBON 1/4W C501 1-162-205-31 CERAMIC 18PF R6014 1-249-433-11 CARBON 1/4W C502 1-162-205-31 CERAMIC 18PF R6015...
- Page 48 PANEL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks D507 8-719-911-19 DIODE 1SS119 R516 1-249-427-11 CARBON 6.8K 1/4W F D509 8-719-024-99 DIODE 11ES2-NTA2B R517 1-249-427-11 CARBON 6.8K 1/4W F D511 8-719-118-62 DIODE RD5.6F-T7B1 R518 1-247-807-31 CARBON 1/4W D512 8-719-046-80 DIODE SML19416W-TP4 (MOVIE)
- Page 49 PANEL POWER AMP Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R577 1-249-421-11 CARBON 2.2K 1/4W F S516 1-762-378-11 SWITCH, TACTILE (CLOCK/TIMER SET) R578 1-247-843-11 CARBON 3.3K 1/4W S517 1-762-378-11 SWITCH, TACTILE (POWER) R579 1-249-425-11 CARBON 4.7K 1/4W F S518...
- Page 50 POWER AMP PRIMARY Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C952 1-162-294-31 CERAMIC 0.001uF R940 1-249-429-11 CARBON 1/4W C953 1-162-282-31 CERAMIC 100PF R941 1-249-429-11 CARBON 1/4W C954 1-126-967-11 ELECT 47uF R942 1-249-413-11 CARBON 1/4W F C955 1-126-967-11 ELECT 47uF...
- Page 51 SECONDARY SURR AMP SURR SPK Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1-669-954-11 SECONDARY BOARD < TRANSISTOR > ***************** Q4002 8-729-140-84 TRANSISTOR 2SC1841-PAFAEA 1-533-293-11 FUSE HOLDER Q4052 8-729-140-84 TRANSISTOR 2SC1841-PAFAEA < CONNECTOR > < RESISTOR > * CN872 1-564-518-11 PLUG, CONNECTOR 3P (V7770) R4001...
- Page 52 A-4660-926-A MOTOR (CDM) ASSY M901 1-763-117-11 FAN, DC ! T901 1-431-901-11 TRANSFORMER, POWER (V7770) ! T901 1-431-904-11 TRANSFORMER, POWER (V5550) ************************************************************ Sony Corporation 98H16084-1D Printed in Japan ©1998.8 Home A&V Products Company 9-922-962-11 Published by Quality Assurance Dept. — 68 — (Shibaura)