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SERVICE MANUAL
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2
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9
0
Refer to the SERVICE MANUAL of VHS MECHANICAL
ADJUSTMENT
for MECHANICAL ADJUSTMENTS.
(9-921-748-11)
System
Format
VHS NTSC standard
Video recording system
Rotary head helical scanning FM system
Video heads
Double azimuth four heads
Video signal
NTSC color, EIA standards
Tape speed
SP: 33.35 mm/s
EP: 11.11 mm/s
LP: 16.67 mm/s,
playback only
Maximum recording/playback time
9 hrs. in EP mode (with T-180 tape)
Fast-forward and rewind time
Approx. 3 min. (with T-120 tape)
Tuner section
Channel coverage
VHF 2 to 13
UHF 14 to 69
CATV A-8 to A-1, A to W, W+1 to W+84
Antenna
75-ohm antenna terminal for VHF/UHF
Input and outputs
LINE-1 IN and -2 IN
VIDEO IN, phono jack (1 each)
Input signal: 1 Vp-p, 75 ohms, unbalanced, sync
negative
AUDIO IN, phono jacks (1 each) (SLV-LX50
and LX40), (2 each) (SLV-LX70S and LX60S)
Input level: 327 mVrms
Input impedance: more than 47 kilohms
SLV-LX40/LX50/LX60S/LX70S
SLV-LX70S
HiFi model : SLV-LX60S/LX70S
Mono model: SLV-LX40/LX50
SPECIFICATIONS
LINE OUT
VIDEO OUT, phono jack (1)
Output signal: 1 Vp-p, 75 ohms, unbalanced,
sync negative
AUDIO OUT, phono jacks (1 each) (SLV-LX50
and LX40), (2 each) (SLV-LX70S and LX60S)
Standard output: 327 mVrms
Load impedance: 47 kilohms
Output impedance: less than 10 kilohms
Timer section
Clock
Quartz locked
Timer indication
12-hour cycle
Timer setting
8 programs (max.)
Power back-up
Built-in self-charging capacitor
Back-up duration: up to 8 hours at a time
General
Power requirements
110 V AC to 240 V AC, 50/60 Hz
(SLV-LX70S (CL/CS) and LX50 (CL/CS))
120 V AC, 60 Hz
(SLV-LX70S (MX/PA/PC/VZ), LX60S (MX),
LX50 (MX/PA/PC/VZ), and LX40 (MX))
Power consumption
17 W
(SLV-LX70S (CL/CS/MX/PA/PC/VZ) and
SLV-LX60S (MX))
— 1 —
RMT-V293A/V294A
Chilean Model
SLV-LX50CL/LX50CS/LX70SCL/
Mexican Model
SLV-LX40MX/LX50MX/LX60SMX/
Panama Model
Venezuelan Model
SLV-LX50PA/LX50PC/LX50VZ/
LX70SPA/LX70SPC/LX70SVZ
16 W
(SLV-LX50 (CL/CS/MX/PA/PC/VZ) and
SLV-LX40 (MX))
Operating temperature
5°C to 40°C (41°F to 104°F)
Storage temperature
–20°C to 60°C (–4°F to 140°F)
Dimensions
Approx. 355 x 96 x 288.8 mm (w/h/d)
including projecting parts and controls
Mass
Approx. 3.6 kg
Supplied accessories
Remote commander (1)
Size AA (R6) batteries (2)
75-ohm coaxial cable with F-type connectors (1)
Audio/video cable (1) (3-phono to 3-phono)
(SLV-LX70S and LX60S only)
Plug adaptor (1)
(SLV-LX70S (CL/CS) and LX50 (CL/CS) only)
Design and specifications are subject to change
without notice
ENERGY STAR
As an ENERGY STAR
has determined that this product meets the
ENERGY STAR
VIDEO CASSETTE RECORDER
LX70SCS
LX70SMX
S MECHANISM
®
is a U.S. registered mark.
®
Partner, Sony Corporation
®
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Table of Contents
Related Manuals for Sony SLV-LX40
Summary of Contents for Sony SLV-LX40
- Page 1 SLV-LX50PA/LX50PC/LX50VZ/ LX70SPA/LX70SPC/LX70SVZ S MECHANISM SLV-LX70S Refer to the SERVICE MANUAL of VHS MECHANICAL HiFi model : SLV-LX60S/LX70S ADJUSTMENT for MECHANICAL ADJUSTMENTS. Mono model: SLV-LX40/LX50 (9-921-748-11) SPECIFICATIONS System LINE OUT 16 W VIDEO OUT, phono jack (1) (SLV-LX50 (CL/CS/MX/PA/PC/VZ) and Format...
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Page 2: Service Note
SERVICE NOTE 1. ERROR CODE INDICATION • Error codes are indicated using the lower 5 digits in the fluorescent display tube. “At this time, Colon “:” between character is not indicated.” Mode code indication when the error has occurred. Error code ERROR CODE 0 No error 1 Cam encoder error Loading direction... -
Page 3: Frame Schematic Diagram
SLV-LX40/LX50/LX60S/LX70S 4-1. FRAME SCHEMATIC DIAGRAM FRAME SCHEMATIC DIAGRAM... -
Page 4: Signal Path
SLV-LX40/LX50/LX60S/LX70S MA-405 (REC/PB HEAD AMP) SCHEMATIC DIAGRAM – Ref. No: MA-405 board; 1000 series – • See page 4-21 for waveforms. MA-405 BOARD(1/7) NO MARK:REC/PB MODE CN270 R :REC MODE REC/PB HEAD AMP(RP BLOCK) JL271 P :PB MODE HF ADJ... - Page 5 SLV-LX40/LX50/LX60S/LX70S MA-405 (Y/C, AUDIO PROCESSOR) SCHEMATIC DIAGRAM – Ref. No: MA-405 board; 1000 series – • See page 4-5 for printed wiring board. • See page 4-21 for waveforms. MA-405 BOARD(2/7) XX MARK:NO MOUNT R :REC MODE NO MARK:REC/PB MODE...
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Page 6: Servo/System Control
SLV-LX40/LX50/LX60S/LX70S MA-405 (SERVO/SYSTEM CONTROL) SCHEMATIC DIAGRAM – Ref. No: MA-405 board; 1000 series – • See page 4-5 for printed wiring board. • See page 4-21 for waveforms. MA-405 BOARD(3/7) XX MARK:NO MOUNT R :REC MODE NO MARK:REC/PB MODE P :PB MODE... - Page 7 SLV-LX40/LX50/LX60S/LX70S MA-405 (AUDIO PROCESS) SCHEMATIC DIAGRAM – Ref. No: MA-405 board; 1000 series – • See page 4-5 for printed wiring board. MA-405 BOARD(4/7) AUDIO PROCESS (AU BLOCK) XX MARK:NO MOUNT NO MARK:REC/PB MODE R :REC MODE P :PB MODE...
- Page 8 SLV-LX40/LX50/LX60S/LX70S MA-405 (TUNER) SCHEMATIC DIAGRAM – Ref. No: MA-405 board; 1000 series – • See page 4-5 for printed wiring board. MA-405 BOARD(5/7) TUNER (TU BLOCK) XX MARK:NO MOUNT TU701 10 11 12 13 14 15 16 17 18 21 22 23 24...
- Page 9 SLV-LX40/LX50/LX60S/LX70S MA-405 (DISPLAY CONTROL) SCHEMATIC DIAGRAM – Ref. No: MA-405 board; 1000 series – • See page 4-5 for printed wiring board. MA-405 BOARD(6/7) DISPLAY CONTROL (FRONT BLOCK) XX MARK:NO MOUNT AN_GND AN_GND AN_GND L2(R) AU_GND MA-405 (2/7) AU_GND AU_GND...
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Page 10: Power Supply
SLV-LX40/LX50/LX60S/LX70S MA-405 (POWER SUPPLY) SCHEMATIC DIAGRAM – Ref. No: MA-405 board; 1000 series – • See page 4-5 for printed wiring board. MA-405 BOARD(7/7) POWER SUPPLY (PS BLOCK) XX MARK:NO MOUNT NO MARK:REC/PB MODE L660 68uH JL618 +30V 13.5 13.5... - Page 11 SLV-LX40/LX50/LX60S/LX70S MA-405 MA-405 MA-405 BOARD (1/7) BOARD (2/7) BOARD (3/7) (R/P BLOCK) (VA BLOCK) (SS BLOCK) 4fsc (OUT) IC201 2 REC IC201 yj REC/PB IC160 el IC160 i;T REEL IC260 4 REC/PB REC/PB 4.8Vp-p 1.6sec (TAPE TOP) 3.6Vp-p 380mVp-p 3.579545MHz 14.31818MHz...
- Page 12 FJ-32 (LINE 2 IN) PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM — Ref. No. FJ-32 Board: 1,000 Series — There are few cases that the part printed on this diagram isn’t mounted in this model. FJ-32 BOARD FJ-32 BOARD LINE 2 IN •REF.NO.: 1,000 SERIES- R801 LX40/LX50...
- Page 13 DI-80 (DIAL TIMER) PRINTED WIRING BOARD AND SCHEMATIC DIAGRAM — Ref. No. DI-80 Board:1,000 Series — There are few cases that the part printed on this diagram isn’t mounted in this model. DI-80 BOARD DI-80 BOARD DIAL TIMER •REF.NO.: 1,000 SERIES- S901 CN901 JL901...
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Page 14: Section 5 Interface, Ic Pin Function Description
SLV-LX40/LX50/LX60S/LX70S SECTION 5 INTERFACE, IC PIN FUNCTION DESCRIPTION 5-1. SYSTEM CONTROL — MECHANISM BLOCK INTERFACE (MA-405 BOARD IC160) CASSETTE CASSETTE TAPE TAPE STOP EJECTED Signal Pin No. LOARDING UNLOARDING THREADING UNTEREADING MA-405 Board IC160 MA-405 Board MODE 1 — —... - Page 15 5-3. SYSTEM CONTROL — SYSTEM CONTROL PERIPHERAL CIRCUIT INTERFACE (MA-405 BOARD IC160) Signal Pin No. I/O level MA-405 Board RESET Normally “H”, “L” when service interruption detected or restored. IC160 ef MA-405 Board I2C DATA 1 Serial communication data to EEPROM I2C161. IC160 es MA-405 Board I2C CLOCK 1...
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Page 16: Mpx Mode
5-7. SERVO/SYSTEM CONTROL MICROPROCESSOR PIN FUNCTIONS (MA-405 BOARD IC160) Pin No. Pin Name Function DEST Destination control input MPX MODE STEREO/MONO/SAP DETECTION TU AFT Tuner analog AFT input FUNC KEY2 Key input FUNC KEY1 Key input S SENS Tape end sensor input T SENS Tape top sensor input V RF ENV... -
Page 17: White Level
Pin No. Pin Name Function WHITE LEVEL White level signal input OSD V OUT OSD Video signal output OSD Vcc — SW 5V (OSD block) External low-pass filter for slicer/AFC is connected to this terminal V HOLD External capacitor for slicer is connected to this terminal C VIDEO IN Control video signal input (osd, tuner, sorvo) —... -
Page 18: Section 6 Adjustments
SLV-LX40/LX50/LX60S/LX70S SECTION 6 ADJUSTMENTS 2-1-3. Set-up of Adjustment MECHANICAL ADJUSTMENTS In this adjustment, NTSC pattern generator is connected with LINE input terminal. When check to tuner, connected AERIAL terminal. For the mechanical adjustments, please refer to the Check that the synchronizing signal of the Y signal has an amplitude “VHS MECHANICAL ADJUSTMENT MANUAL... -
Page 19: Power Supply Check
2-1-5. Input/Output Levels and Impedance 2-2. POWER SUPPLY CHECK Video input: LINE IN 2-2-1. Output Voltage Check (MA-405 Board) Input signal: 1 Vp-p, 75 ohms, unbalanced, Mode STANDBY sync negative +30 V Check Video output: LINE OUT Measurement point C671 3 Output signal: 1 Vp-p, 75 ohms, unbalanced, sync negative Specified value... -
Page 20: Servo System Check
2-3. SERVO SYSTEM CHECK 2-4. AUDIO SYSTEM ADJUSTMENT 2-3-1. RF Switching Position Adjustment • Adjust both L ch and R ch. (MA-405 Board) [Connecting Instruments] [Adjustment Purpose] Audio line OUTPUT L/R To adjust the link of the A-ch and B-ch of the tape playback outputs. To make the unit compatible with other tapes and units. - Page 21 2-4-2. HiFi Switching Position Adjustment 2-4-5. Audio Noise Check (MA-405 Board) [Adjustment purpose] [Adjustment Purpose] Confirm that the noise level is within the specification. To adjust the link of the A-ch and B-ch of the tape playback outputs. Mode REC and PB (SP mode) To make the unit compatible with other tapes and units.
- Page 22 2-5. ADJUSTING PARTS LOCATION DIAGRAM MA-405 BOARD (CONDUCTOR SIDE) CNJ562 CN270 VIDEO/AUDIO LINE RF/HF SWP IN/OUT C671 +30 V Q600 MTR12 V -11V +12V Q662 D420 SW5V JS401 IC660 ND420 6-5E...
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Page 23: Section 7 Repair Parts List
3-951-089-01 SPRING (GE), FL (LX60S/LX70S) (LX40/LX50) 3-058-039-11 DOOR,CASSETTE 4-921-277-41 SCREW(B2.6 × 8), TAPPING, BIND 1-476-437-11 COMMANDER, STANDARD (RMT-V294A) A-6794-813-A DI-080 MOUNT (LX60S/LX70S) 1-757-552-12 CABLE, FLAT FDM-010 3-943-995-51 EMBLEM (NO.5), SONY A-6794-814-A FJ-032 MOUNT (LX60S/LX70S) A-6794-815-A FJ-032 MOUNT (LX40/LX50) 1-757-556-11 CABLE, FLAT FFJ-004... -
Page 24: Chassis Section
7-1-2. CHASSIS SECTION not supplied not supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-959-383-01 BASE (R), MD * 53 A-6713-829-A MA-405 COMPLETE PC BOARD 3-987-076-11 PANEL, REAR (LX40/LX50:MX,PA,PC,VZ) A-6713-826-A MA-405 COMPLETE PC BOARD 3-970-608-21 SUMITITE (B3), +BV (LX50:CL,CS) 1-791-857-11 CABLE, FLAT (FMD-21) -
Page 25: Mechanism Deck Section
7-1-3. MECHANISM DECK SECTION-1 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-977-509-01 WASHER, THRUST 3-977-514-01 OPENER, LID (SL) 3-977-507-01 TABLE, REEL (S) (GRAY) 3-977-441-03 GEAR, PINCH PRESSING 3-977-508-01 TABLE, REEL (T) (BLACK) 3-977-445-02 GEAR, TG8 ARM DRIVING 1-500-144-11 HEAD, FE 3-977-465-01 SPRING, EXTENSION (RVS BRAKE) 3-977-495-01 SHAFT, TG2... - Page 26 7-1-4. MECHANISM DECK SECTION-2 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks X-3947-581-4 BRAKE ASSY,MAIN(T) X-3944-378-1 ROLLER ASSY, GUIDE 3-977-462-01 SPRING,EXTENTION. (MAIN BRAKE) 3-965-178-01 SPRING X-3947-573-1 ARM ASSY, PENDULUM 3-062-687-01 BASE, DRUM X-3947-580-5 BRAKE ASSY, MAIN(S) A-6750-328-G SHUTTLE (T) BLOCK ASSY 3-977-513-02 LEVER, REC PROOF 3-977-501-01 PLATE, LUMINOUS...
- Page 27 7-1-5. MECHANISM DECK SECTION-3 M902 M903 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 3-977-437-01 RETAINER,CAM MOTOR 3-977-455-01 GEAR, LOADING(T) X-3947-584-1 ASSY, REEL DIRECT 3-977-456-03 SPRING, TORSION (LOAD T) 3-977-443-01 WASHER, STOPPER X-3947-579-1 LEVER ASSY, LOADING(T) 3-977-438-01 WORM - WHEEL 3-977-451-01 GEAR, LOADING(S) 3-977-506-01 ARM, LIMITTER SELECTION...
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Page 28: Electrical Parts List
MA-405 FJ-32 DI-80 Ref. No. 7-2. ELECTRICAL PARTS LIST Part No. Description Remarks Ref. No. Part No. Description Remarks NOTE: • RESISTORS • Due to standardization, replacements in the When indicating parts by reference number, All resistors are in ohms. parts list may be different from the parts please include the board name. - Page 29 MA-405 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C143 1-126-965-11 ELECT 22µF C237 1-164-232-11 CERAMIC CHIP 0.01µF C144 1-126-965-11 ELECT 22µF C238 1-124-589-11 ELECT 47µF C145 1-126-935-11 ELECT 470µF C239 1-164-232-11 CERAMIC CHIP 0.01µF C146 1-164-161-11 CERAMIC CHIP 0.0022µF 10% C240...
- Page 30 MA-405 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C323 1-126-163-11 ELECT 4.7µF C503 1-163-017-00 CERAMIC CHIP 0.0047µF 10% C324 1-109-978-81 ELECT 10µF C504 1-163-275-11 CERAMIC CHIP 0.001µF 5% C505 1-162-199-31 CERAMIC 10PF C325 1-126-163-11 ELECT 4.7µF C326 1-124-242-00 ELECT...
- Page 31 MA-405 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks C666 1-124-589-11 ELECT 47µF D607 8-719-109-89 DIODE RD5.6ES-T1B2 C669 1-164-232-11 CERAMIC CHIP 0.01µF D608 8-719-022-97 DIODE D2S4MF C671 1-126-965-11 ELECT 22µF C672 1-164-159-21 CERAMIC 0.1µF D609 8-719-083-43 DIODE 31DQ06-FA7 C701 1-104-664-11 ELECT 47µF...
- Page 32 MA-405 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks JR007 1-216-295-00 SHORT JS324 1-216-296-00 SHORT 0 (LX40/LX50) JR008 1-216-295-00 SHORT JS325 1-216-295-00 SHORT 0 (LX40/LX50) JR009 1-216-295-00 SHORT JS453 1-216-295-00 SHORT JR010 1-216-295-00 SHORT JR011 1-216-295-00 SHORT JS521 1-216-295-00 SHORT 0 (LX40/LX50)
- Page 33 MA-405 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks <TRANSISTOR> R166 1-216-073-00 RES-CHIP 1/10W R167 1-249-431-11 CARBON 1/4W Q101 8-729-043-84 TRANSISTOR PT380F3 Q102 8-729-043-84 TRANSISTOR PT380F3 R168 1-216-073-00 RES-CHIP 1/10W Q103 8-729-281-53 TRANSISTOR 2SC1815GR-TPE2 R169 1-216-073-00 RES-CHIP 1/10W Q201 8-729-230-49 TRANSISTOR 2SC2712Y-TE85L...
- Page 34 MA-405 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R306 1-216-033-00 RES-CHIP 1/10W R427 1-216-053-00 RES-CHIP 1.5K 1/10W R308 1-216-091-00 RES-CHIP 1/10W R440 1-216-075-00 RES-CHIP 1/10W R310 1-216-295-00 SHORT R441 1-216-085-00 RES-CHIP 1/10W R311 1-216-295-00 SHORT R313 1-249-437-11 CARBON 1/4W...
- Page 35 MA-405 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R680 1-249-417-11 CARBON 1/4W MISCELLANEOUS R701 1-249-417-11 CARBON 1/4W ************** R702 1-216-061-00 RES-CHIP 3.3K 1/10W R703 1-249-412-11 CARBON 1/4W 1-777-852-12 CORD, POWER R704 1-216-043-91 RES-CHIP 1/10W (LX40/LX50:MX,PA,PC,VZ/ R709 1-216-049-00 RES-CHIP 1/10W...