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Sony STR-K990 Service Manual
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Sony STR-K990 Service Manual

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SERVICE MANUAL

Ver. 1.0 2007.03
• STR-K990 is the tuner and the amplifier section
in HT-DDW990.
This receiver incorporates Dolby* Digital and Pro Logic Surround and
the DTS** Digital Surround System.
* Manufactured under license from Dolby Laboratories.
"Dolby", "Pro Logic" and the double-D symbol are trademarks of
Dolby Laboratories.
** "DTS" and "DTS Digital Surround" are registered trademarks of
DTS, Inc.
AUDIO POWER
SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
(Models of area code US only)
With 6 ohm loads, both channels driven, from
120 – 20,000 Hz; rated 90 watts per channel
minimum RMS power, with no more than 1%
total harmonic distortion from 250 milliwatts
to rated output.
Amplifier section
1)
Power Output
Stereo mode (6 ohms, 1 kHz, THD 1%)
90 W + 90 W
2)
Surround mode
(reference) (6 ohms, 1 kHz,
THD 10%)
RMS output
FRONT:140 W
per channel
CENTER:140 W
SURROUND:140 W
per channel
Sony Corporation
9-887-508-01
Home Audio Division
2007C16-1
Published by Sony Techno Create Corporation
© 2007.03
STR-K990
SPECIFICATIONS
1)
Measured under the following conditions:
Area code
Power requirements
US, Canadian
120 V AC, 60 Hz
2)
Reference power output for front, center and
surround speakers. Depending on the sound field
settings and the source, there may be no sound
output.
Inputs
Analog
Sensitivity: 800 mV/
50 kohms
Digital (Coaxial) Impedance: 75 ohms
Outputs (Analog)
AUDIO OUT
Voltage: 800 mV/
10 kohms
SUB WOOFER
Voltage: 2 V/1 kohm
Tone
±6 dB, 1 dB step
Gain levels
Reproduction frequency range:
28 – 20,000 Hz
MULTI CHANNEL AV RECEIVER
US Model
Canadian Model
FM tuner section
Tuning range
87.5 - 108.0 MHz
Antenna
FM wire antenna
Antenna terminals
75 ohms, unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
With 10-kHz tuning scale:
530 – 1,710 kHz
With 9-kHz tuning scale:
531 – 1,710 kHz
Antenna
Loop antenna
Intermediate frequency
450 kHz
3)
You can change the AM tuning scale to 9 kHz or
10 kHz. After tuning in any AM station, turn off
the receiver. While holding down TUNING
MODE, press ?/1. All preset stations will be
erased when you change the tuning scale. To reset
the scale to 10 kHz (or 9 kHz), repeat the
procedure.
— Continued on next page —
3)
3)

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  • Page 1: Service Manual

    SERVICE MANUAL US Model Canadian Model Ver. 1.0 2007.03 • STR-K990 is the tuner and the amplifier section in HT-DDW990. This receiver incorporates Dolby* Digital and Pro Logic Surround and the DTS** Digital Surround System. * Manufactured under license from Dolby Laboratories.
  • Page 2 LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COM- POSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

  • Page 3: Table Of Contents

    STR-K990 Notes on chip component replacement TABLE OF CONTENTS • Never reuse a disconnected chip component. • Notice that the minus side of a tantalum capacitor may be GENERAL ..............4 damaged by heat. TEST MODE ............... 11 UNLEADED SOLDER...

  • Page 4: General

    STR-K990 SECTION 1 GENERAL This section is extracted from instruction manual. Receiver Front panel MASTER VOLUME DISPLAY INPUT MODE INPUT SELECTOR SPEAKERS (OFF/A/B/A+B) AUTO CAL MIC MEMORY/ TUNING ENTER MODE TUNING A.F.D. MOVIE MUSIC AUTO CAL MUTING VIDEO 3 IN/PORTABLE AV IN...

  • Page 5: About Indicators On The Display

    STR-K990 About the indicators on the display SP A PL II MEMORY SP B COAX D.RANGE MONO Name Function Name Function A SW I MEMORY Lights up when the audio signal Lights up when a memory is output from the SUB function, such as Preset WOOFER jack.

  • Page 6: Rear Panel

    STR-K990 Rear panel DIGITAL OPTICAL ANTENNA DVD IN VIDEO 2/BD IN HDMI VIDEO 2/ BD IN COAXIAL VIDEO OUT SAT IN DVD IN VIDEO 1 IN MONITOR OUT VIDEO IN VIDEO IN VIDEO OUT VIDEO IN MONITOR COMPONENT VIDEO DMPORT...
  • Page 7 Press to turn on or off the You can use the supplied remote to operate the (on/standby) audio/video components that receiver and to control the Sony audio/video the remote is programmed to operate. components that the remote is assigned to To turn the TV on or off, press operate.
  • Page 8 TOOLS for DVD player or E D.TUNING Press to enter direct tuning DVD/VHS COMBO. mode. To display the options of Sony F AUTO CAL Press to activate the Auto TV, press TV (wj) and then Calibration function. press OPTIONS TOOLS.
  • Page 9 TV INPUT to select screen. the input signal (TV input or To return to the previous video input). menu of Sony TV, press TV WIDE Press TV (wj) and then (wj) and then press press WIDE to select the RETURN/EXIT O.
  • Page 10 (U), and V/v/B/b (U) to enter the selection. buttons to perform menu Press also to enter the operations for Sony TVs only. selection of the receiver, wk RM SET UP Press to set up the remote. VCR, satellite tuner, DVD...

  • Page 11: Test Mode

    STR-K990 SECTION 2 TEST MODE SOUND FIELD CLEAR MODE SWAP ALL MODE The preset sound field is cleared when this mode is activated. Use The signal will be swapped to all channels so that all speakers will this mode before returning the product to clients upon completion have sound output.
  • Page 12 STR-K990 1. DCAC DSP Data Line Checking After press the TUNING MODE , DCAC Factory test mode will start, below display will show: “DCAC[][][]x” x = 1, 2, 3 If there is error happen, below display will show: x = 1 → D1501 or R1530 “ERR[]SD0x”...

  • Page 13: Electrical Adjustment

    STR-K990 SECTION 3 ELECTRICAL ADJUSTMENT TUNER SECTION [FM Auto Stop Check] generator OUT (75 Ω ) Procedure: 1. Turn the power on. 2. Input the following signal from Signal Generator to FM antenna input directly. * Carrier Freq : A = 87.5 MHz, B = 98 MHz, C = 108 MHz...

  • Page 14: Diagrams

    STR-K990 SECTION 4 DIAGRAMS THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) For Schematic Diagrams. For Printed Wiring Boards. Note: Note: • All capacitors are in µF unless otherwise noted. (p: pF) •...

  • Page 15: Block Diagram - Main Section

    STR-K990 4-1. BLOCK DIAGRAM – MAIN SECTION – IC401 ANALOG SOUND PROCESSOR J402 J402(1/2) (2/2) VIDEO 1 AUDIO IN INDL ROUTAL AUDIO OUT VIDEO 1 J405 J405 (1/2) (2/2) SA-CD/CD/CD-R INGL ROUTBL SA-CD/CD/CD-R INFL J403 (1/2) AUDIO IN INEL OUT L...

  • Page 16: Block Diagram - Display/Power Section

    STR-K990 4-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION – J309 IC807 AUDIO OUT SUB WOOFER VIDEO RY560 Q560 IC1902 RELAY DRIVE T901 TUNER D920-923 +10V +10V TM602 RELAY IC801 IC701 RY710 FRONT B POWER AMP AUDIO Q611 R-CH RELAY Q703 DRIVE...

  • Page 17: Printed Wiring Board - Digital Board (Side A)

    STR-K990 4-3. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE A) – • See page 14 for Circuit Boards Location. :Uses unleaded solder. DIGITAL BOARD (SIDE A) • Semiconductor Location Ref. No. Location D1001 D1109 D1301 R1253 R1318 D1302 R1321 FB1350...

  • Page 18: Printed Wiring Board - Digital Board (Side B)

    STR-K990 4-4. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE B) – • See page 14 for Circuit Boards Location. :Uses unleaded solder. MAIN STANDBY MAIN VIDEO DCDC BOARD BOARD BOARD BOARD BOARD ANTENNA CNP913 CNP903 CNP912 CNS207 CN4103 (Page 24)

  • Page 19: Schematic Diagram - Digital Board (1/5)

    STR-K990 4-5. SCHEMATIC DIAGRAM – DIGITAL BOARD (1/5) – • See page 39 for Waveform. • See page 39 for IC Block Diagram. DIGITAL BOARD (1/5) CNS509 DIGITAL CL013 BOARD COMP MUTE (4/5) CL012 HDMI 6.8V (Page 22) CL011 S2(HDMI)

  • Page 20: Schematic Diagram - Digital Board (2/5)

    STR-K990 4-6. SCHEMATIC DIAGRAM – DIGITAL BOARD (2/5) – • See page 39 for Waveform. • See page 39 for IC Block Diagram. DIGITAL BOARD DIGITAL BOARD (4/5) (5/5) (Page 22) (Page 23) DIGITAL BOARD (2/5) R1557 R1555 R1541 C1913 0.47...

  • Page 21: Schematic Diagram - Digital Board (3/5)

    STR-K990 4-7. SCHEMATIC DIAGRAM – DIGITAL BOARD (3/5) – • See page 40 for IC Block Diagrams. DIGITAL BOARD (1/5) (Page 19) DIGITAL BOARD (3/5) DOUT TUNER_L TUNER_R FB1503 R1556 PCM1609_SCK PCM1803_BCK JR1008 PCM1803_LRCK R1504 PCM1609_DATA3 R1506 PCM1609_DATA2 R1505 DIGITAL...

  • Page 22: Schematic Diagram - Digital Board (4/5)

    STR-K990 4-8. SCHEMATIC DIAGRAM – DIGITAL BOARD (4/5) – MAIN BOARD STANDBY MAIN BOARD (4/4) (4/4) BOARD CNP913 CNP903 CNP912 (Page 28) (Page 32) (Page 28) CNP503 CNP505 (4/5) DIGITAL BOARD IC1904 CL025 IC1904 BA33BC0FP-E2 +3.3V REG D1001 1SR154-400TE-25 C1022 C1021 0.47...

  • Page 23: Schematic Diagram - Digital Board (5/5)

    STR-K990 4-9. SCHEMATIC DIAGRAM – DIGITAL BOARD (5/5) – • See page 39 for Waveform. • See page 44 for IC Pin Function Description. DIGITAL BOARD (4/5) (Page 22) 91 92 93 94 95 a1 a2 a7 a8 a9 b1 b2 b3 b4 b5 b6...

  • Page 24: Printed Wiring Board - Main Board

    STR-K990 4-10. PRINTED WIRING BOARD – MAIN BOARD – • See page 14 for Circuit Boards Location. :Uses unleaded solder. J309 DCAC SPEAKERS(IMPEDANCE USE 6-16Ω) J405 J403 J402 BOARD TM602 CN2000 SA-CD/CD/CD-R VIDEO 1 WOOFER FRONT B TB001 (1pin to 4pin)

  • Page 25: Schematic Diagram - Main Board (1/4)

    STR-K990 4-11. SCHEMATIC DIAGRAM – MAIN BOARD (1/4) – IC3002 MAIN BOARD (1/4) IC3002 NJM4565M(TE2) J405 C409 J405 R409 R3020 C459 R3010 R471 R3023 R459 C3034 R3021 R472 SA-CD/CD/CD-R R3013 R3011 C3025 C3026 R402 C3022 C3032 R3022 R452 C3024 C3037...

  • Page 26: Schematic Diagram - Main Board (2/4)

    STR-K990 4-12. SCHEMATIC DIAGRAM – MAIN BOARD (2/4) – • See page 41 for IC Block Diagrams. (2/4) MAIN BOARD R794 BOOSTER IC701 IC B/D Q701 Q703 MN2488-OPY-MK POWER AMP C717 2SA1115TP-EF R714 R792 R719 C720 LIMITER 500V 4.7k 220p...

  • Page 27: Schematic Diagram - Main Board (3/4)

    STR-K990 4-13. SCHEMATIC DIAGRAM – MAIN BOARD (3/4) – • See page 41 for IC Block Diagram. MAIN BOARD (2/4) (Page 26) 15 14 27 26 MAIN BOARD (3/4) IC501 IC B/D POWER AMP IC501 UPC2581V-S BOOSTER D841 R741 UDZSTE-173.0B...

  • Page 28: Schematic Diagram - Main Board (4/4)

    STR-K990 4-14. SCHEMATIC DIAGRAM – MAIN BOARD (4/4) – MAIN BOARD MAIN BOARD (1/4) (3/4) (Page 25) (Page 27) 31 32 (4/4) MAIN BOARD C471 IC801 R469 R468 100k +7V REG R470 RY560 SUBWOOFER AUDIO OUT IC801 TA7807S D560 C400...

  • Page 29: Printed Wiring Boards - Display Board, Power Key Board

    STR-K990 4-15. PRINTED WIRING BOARDS – DISPLAY BOARD, POWER KEY BOARD – • See page 14 for Circuit Boards Location. :Uses unleaded solder. DISPLAY BOARD CL028 CL060 JW140 R197 CL058 CL047 CL029 CL059 CL061 CL062 JW170 CL046 CL030 JW171 R198...

  • Page 30: Schematic Diagram - Display Board, Power Key Board

    STR-K990 4-16. SCHEMATIC DIAGRAM – DISPLAY BOARD, POWER KEY BOARD – • See page 41 for IC Block Diagrams. DISPLAY BOARD FL101 (FLUORESCENT INDICATOR TUBE) CN108 R198 R197 CL029 CL028 MAIN BOARD -20V (4/4) CNP507 (Page 28) CNS100 CL066 CL003...

  • Page 31: Printed Wiring Boards - Standby Board, Dcdc Board

    STR-K990 4-17. PRINTED WIRING BOARDS – STANDBY BOARD, DCDC BOARD – • See page 14 for Circuit Boards Location. :Uses unleaded solder. • Semiconductor Location T901 Ref. No. Location POWER TRANSFORMER D901 (MAIN) D910 D911 D912 D913 D914 D915 D920...

  • Page 32: Schematic Diagram - Standby Board, Dcdc Board

    STR-K990 4-18. SCHEMATIC DIAGRAM – STANDBY BOARD, DCDC BOARD – DCDC BOARD IC4001 SI-8050S-LF1101 IC4001 +6.3V REG R810 F4001 STANDBY BOARD CN4001 L4001 0.22 CNP804 T3.15AL/250V 100uH 1/2W FH4001 FH4002 D4001 C4006 R2 AC AC-R2-17V 0.47 D3SB60F3 CL003 L4000 R2 GND...

  • Page 33: Printed Wiring Boards - Dcac Board, Video3 Board

    STR-K990 4-19. PRINTED WIRING BOARDS – DCAC BOARD, VIDEO3 BOARD – • See page 14 for Circuit Boards Location. :Uses unleaded solder. J298 VIDEO3 IN / PORTABLE AV IN AUDIO VIDEO VIDEO3 DCAC BOARD MAIN BOARD BOARD CL2004 R2017 CN506...

  • Page 34: Schematic Diagram - Dcac Board, Video3 Board

    STR-K990 4-20. SCHEMATIC DIAGRAM – DCAC BOARD, VIDEO3 BOARD – J298 VIDEO3 IN/ PORTABLE AV IN C2005 DCAC BOARD R2000 AUDIO C2002 J2000 R2019 AUTO CAL MIC VIDEO 2.2k R2005 R2017 C2006 2.2k R2018 C2018 VIDEO 3 1.2k R2003 BOARD...

  • Page 35: Printed Wiring Boards - Video Board, Headphone Board

    STR-K990 4-21. PRINTED WIRING BOARDS – VIDEO BOARD, HEADPHONE BOARD – • See page 14 for Circuit Boards Location. :Uses unleaded solder. COMPONENT VIDEO J302 J301 MONITOR OUT SAT IN DVD IN VIDEO 1 IN J200 J201 MONITOR VIDEO 1...

  • Page 36: Schematic Diagram - Video Board, Headphone Board

    STR-K990 4-22. SCHEMATIC DIAGRAM – VIDEO BOARD, HEADPHONE BOARD – • See page 42 for IC Block Diagrams. VIDEO BOARD VIDEO3 BOARD JW204 C210 C214 R219 CN201 R220 VIDE03 (4,5pin) C209 J201 (Page 34) HEADPHONE BOARD CNP202 C208 CL071 IC807...

  • Page 37: Printed Wiring Board - Hdmi Sw Board

    STR-K990 4-23. PRINTED WIRING BOARD – HDMI SW BOARD – • See page 14 for Circuit Boards Location. :Uses unleaded solder. HDMI SW BOARD HDMI SW BOARD HDMI VIDEO 2/BD IN DVD IN CN5003 CN5002 CN5001 R5048 R5049 R5047 R5073...

  • Page 38: Schematic Diagram - Hdmi Sw Board

    STR-K990 4-24. SCHEMATIC DIAGRAM – HDMI SW BOARD – • See page 43 for IC Block Diagrams. HDMI SW BOARD R5027 R5047 R5068 100k R5028 R5016 C5027 IC5002 TP5016 R5017 R5074 TK11150CSCL-G IC5005 2.2k SN74LVC1G3157DCKR C5017 C5016 0.22 0.01 C5018 0.22...
  • Page 39 STR-K990 • Waveforms – DIGITAL Board – IC1501 9 (MCLK1) IC1301 ws (XIN) 3.2 Vp-p 4.1 Vp-p 72 ns 81 ns 1 V/DIV, 40 ns/DIV 1 V/DIV, 40 ns/DIV IC1101 id (X1) 4 Vp-p 41.6 ns 1 V/DIV, 20 ns/DIV •...

  • Page 40: Digital Board

    STR-K990 – DIGITAL Board – IC1401 PCM1803DBR 20 19 18 17 14 13 12 11 Mode/ Serial Format Interface Control Clock and Timing Control × 1/64 (× 1/128) Decimation Filter with DC Cut Filter 5 th Order 5 th Order...

  • Page 41: Main Board

    STR-K990 – MAIN Board – – DISPLAY Board – IC501, IC601, IC701 uPC2581V-S IC101 TC74ACT08P BIAS CIRCUIT PROTECTOR REG DRIVE DRIVE DRIVE DRIVE 2 3 4 5 6 8 9 10 11 12 13 14 15 – DISPLAY Board –...

  • Page 42: Video Board

    STR-K990 – VIDEO Board – IC203 NJM2595D 75Ω 75Ω Driver Driver 75Ω Driver IC304 NJM2586AL 75Ω 75Ω 75Ω BIAS BIAS BIAS DRIVER DRIVER DRIVER CONT2 CONT1 CONT1 CONT1 CONT2 CONT2 BIAS BIAS BIAS BIAS BIAS BIAS...
  • Page 43 STR-K990 – HDMI SW Board – IC5001 TMDS341PFCR HPD1 80 VCC 79 GND 78 (3.3V) A24 77 TMDS Rx w/ 3-to-1 MUX Drive B24 76 VCC 75 A23 74 Rx w/ TMDS Drive B23 73 GND 72 A22 71 Rx w/...
  • Page 44 STR-K990 • IC Pin Function Description DIGITAL BOARD IC1101 MB90F045PF-G-9034-SPE1 (SYSTEM CONTROLLER) Pin No. Pin Name Description DATAO Audio data signal input from DIR GP9 signal input from DSP BST signal output to DSP HCS signal output to DSP HACN...
  • Page 45 STR-K990 Pin No. Pin Name Description TUNER CLK Tuner clock signal output TUNER DATA Tuner data signal output STOP AC off detect signal input Operation mode setting input Operation mode setting input Operation mode setting input RDS_CLK RDS clock signal input (not used (Fixed to “L”)) RDS_DATA RDS data signal input (not used (Fixed to “L”))
  • Page 46 STR-K990 Pin No. Pin Name Description Clock signal output to DIR Chip enable signal output to DIR Data signal output to DIR Data signal input from DIR ERROR PLL error muting signal input from DIR XSTATE XSTATE data signal input from DIR...

  • Page 47: Exploded Views

    STR-K990 SECTION 5 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they The components identified by mark 0 or may have some difference from the original are seldom required for routine service.

  • Page 48: Chassis Section

    STR-K990 5-2. CHASSIS SECTION supplied Q753 Q754 supplied Q654 Q703 Q604 Q704 Q504 Q603 Q653 F901 supplied Q503 supplied supplied F4002 F4001 supplied T901 supplied not supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 0 Q503...

  • Page 49: Electrical Parts List

    STR-K990 SECTION 6 DCAC DCDC DIGITAL ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • CAPACITORS uF: µF When indicating parts by reference number, parts list may be different from the parts please include the board name.
  • Page 50 STR-K990 DIGITAL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C1032 1-135-372-31 ELECT 470uF C1406 1-126-964-11 ELECT 10uF C1067 1-162-960-11 CERAMIC CHIP 220PF C1407 1-126-964-11 ELECT 10uF C1408 1-100-566-91 CERAMIC CHIP 0.1uF C1068 1-162-960-11 CERAMIC CHIP...
  • Page 51 C1910 1-165-722-11 ELECT 100uF IC1303 8-759-096-87 IC TC7WU04FU (TE12R) C1911 1-100-566-91 CERAMIC CHIP 0.1uF IC1351 6-600-466-01 IC TORX147L (SONY) (VIDEO 2/BD IN) C1913 1-137-980-91 CERAMIC CHIP 0.47uF IC1354 6-600-466-01 IC TORX147L (SONY) (SAT IN) IC1401 6-707-608-01 IC PCM1803DBR C1914 1-126-947-11 ELECT...
  • Page 52 STR-K990 DIGITAL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R1039 1-216-833-11 METAL CHIP 1/10W R1041 1-216-809-11 METAL CHIP 1/10W R1164 1-216-833-11 METAL CHIP 1/10W R1042 1-216-809-11 METAL CHIP 1/10W R1175 1-216-809-11 METAL CHIP 1/10W R1179...

  • Page 53: Digital Display

    STR-K990 DIGITAL DISPLAY Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R1425 1-216-864-11 SHORT CHIP R1426 1-216-821-11 METAL CHIP 1/10W R1643 1-216-833-11 METAL CHIP 1/10W R1434 1-218-867-11 METAL CHIP 6.8K 0.5% 1/10W R1644 1-216-833-11 METAL CHIP...
  • Page 54 STR-K990 DISPLAY HDMI SW Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < RESISTOR > C5015 1-128-994-21 ELECT CHIP 47uF R101 1-249-409-11 CARBON 1/4W C5016 1-162-970-11 CERAMIC CHIP 0.01uF R102 1-249-411-11 CARBON 1/4W C5017 1-115-467-11 CERAMIC CHIP 0.22uF...
  • Page 55 STR-K990 HDMI SW HEADPHONE MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R5043 1-216-829-11 METAL CHIP 4.7K 1/10W C485 1-126-964-11 ELECT 10uF R5047 1-216-864-11 SHORT CHIP C488 1-164-156-11 CERAMIC CHIP 0.1uF R5048 1-216-864-11 SHORT CHIP...
  • Page 56 STR-K990 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C721 1-126-923-91 ELECT 220uF * CNP801 1-564-242-00 PIN, CONNECTOR (3.96mm PITCH) 5P C722 1-126-964-11 ELECT 10uF * CNP802 1-564-509-11 PLUG, CONNECTOR 6P * CNP912 1-564-506-11 PLUG, CONNECTOR 3P...
  • Page 57 STR-K990 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < COIL > R423 1-216-864-11 SHORT CHIP R428 1-216-821-11 METAL CHIP 1/10W L501 1-420-872-52 COIL, AIR-CORE L601 1-420-872-52 COIL, AIR-CORE R429 1-216-821-11 METAL CHIP 1/10W L651...
  • Page 58 STR-K990 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 0 R616 1-234-182-11 ENCAPSULATED COMPONENT 0 R715 1-249-399-11 CARBON 1/4W 0 R617 0 R716 1-249-393-11 CARBON 1/4W 1-234-182-11 ENCAPSULATED COMPONENT 0 R618 1-249-389-11 CARBON 1/4W R620 1-216-214-00 RES-CHIP 4.7K...
  • Page 59 STR-K990 MAIN POWER KEY STANDBY Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 0 R792 1-215-868-00 METAL OXIDE C914 1-127-888-11 CERAMIC 0.1uF 0 R793 1-249-404-00 CARBON 1/4W C915 1-126-943-11 ELECT 2200uF 0 R794 1-215-868-00 METAL OXIDE...
  • Page 60 STR-K990 STANDBY VIDEO VIDEO3 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < TRANSFORMER > < RESISTOR > 0 T902 1-443-516-11 POWER TRANSFORMER R200 1-247-804-11 CARBON 1/4W R201 1-247-804-11 CARBON 1/4W ************************************************************ R218 1-247-804-11 CARBON 1/4W...
  • Page 61 STR-K990 Ref. No. Part No. Description Remark 0 Q704 6-702-391-01 IC MP1620-OPY-MK 0 Q753 6-702-390-01 IC MN2488-OPY-MK 0 Q754 6-702-391-01 IC MP1620-OPY-MK 0 T901 1-443-524-11 POWER TRANSFORMER 1-693-733-11 TUNER (FM/AM)

  • Page 62: Revision History

    STR-K990 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. Date Description of Revision...

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