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Sony STR-DE725 Service Manual
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Sony STR-DE725 Service Manual

Fm stereo fm-am recorder
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SERVICE MANUAL
Manufactured under license from Dolby Laboratories Licensing
Corporation.
"DOLBY" the double-D symbol a "AC-3" and "PRO LOGIC"
are trademarks of Dolby Laboratories Licensing Corporation.
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION:
With 8 ohm loads, both channels driven, from 20 - 20,000 Hz; rated
100 watts per channel minimum RMS power, with no more than
0.09% total harmonic distortion from 250 milliwatts to rated output .
Amplifier section
POWER OUTPUT
Stereo mode
(8 ohms 20 Hz –20 kHz, THD 0.09%)
100 W + 100 W
Surround mode (8 ohms at 1 kHz, THD 0.8%)
Front: 100 W/ch
a)
Center
: 100 W
a)
Rear
: 100 W/ch
a) Depending on the sound field settings and the source, there may be no
sound output.
Dynamic power output
155 W + 155 W, 8 ohms
220 W + 220 W, 4 ohms
Harmonic distortion at rated output
Less than 0.09% (with sound field, tone, and bass
booster bypassed)
Frequency response
PHONO: RIAA
equalization curve
±0.5 dB
CD, TAPE, MD/DAT, TAPE/MD, DVD/LD, TV/DBS,
VIDEO 1 and VIDEO 2 :
10 Hz - 50 kHz +0.5/–2 dB (with sound field, tone,
and bass booster bypassed)
MICROFILM
STR-DE725
SPECIFICATIONS
Inputs (Analog) PHONO:
CD, DVD/LD, TAPE, MD/DAT, TAPE/MD, TV/DBS,
VIDEO 1 and VIDEO 2 :
b)78' IHF
c) Weighted network, input level
Inputs (Digital) DVD/LD:
Outputs
TAPE/MD, (REC OUT); VIDEO 1, 2
(AUDIO OUT):
WOOFER:
PHONES:
BASS BOOST +6 dB at 70 Hz
FM STEREO FM-AM RECORDER
US Model
Sensitivity: 2.5 mV
Impedance: 50 kilohms
b)
c)
S/N
: 75 dB (A, 2.5 mV
)
Sensitivity: 150 mV
Impedance: 50 kilohms
S/N
b)
: 82 dB (A, 150 mV
c)
)
Sensitivity: –
Impedance: –
S/N: 100 dB (A, 20 kHz LPF)
Voltage: 150 mV
Impedance: 10 kilohms
Voltage: 2 V
Impedance: 1 kilohms
Accepts low - and high-impedance headphones
— Continued on next page —

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  • Page 1 STR-DE725 SERVICE MANUAL US Model Manufactured under license from Dolby Laboratories Licensing Corporation. “DOLBY” the double-D symbol a “AC-3” and “PRO LOGIC” are trademarks of Dolby Laboratories Licensing Corporation. SPECIFICATIONS AUDIO POWER SPECIFICATIONS Inputs (Analog) PHONO: POWER OUTPUT AND TOTAL HARMONIC DISTORTION: Sensitivity: 2.5 mV...
  • Page 2 Sampling Frequency Harmonic distortion 48 kHz 0.5% (50 mV/m, 400 kHz) Selectivity BASS: At 9 kHz: 35 dB 100 Hz ~ 1.0 kHz (21 steps) At 10 kHz: 40 dB MID: 500 Hz ~ 5.0 kHz (21 steps) d)You can change the AM tuning scale to 9 kHz. After tuning in any AM TREBLE: station, turn off the receiver.

  • Page 3: Table Of Contents

    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.

  • Page 4: General

    SECTION 1 GENERAL LOCATION AND FUNCTION OF CONTROLS [FRONT PANEL] !¡ #§ #∞ #¢ #£ !™ #™ #¡ @¡ #º @• @º !• !§ @§¿ !¶ @ª @¶ @∞ @¢ @™ !∞ !¢ !£ @£ !ª @º 1/u (POWER) button TUNER button @¡...
  • Page 5 [REAR PANEL] !¡ !™ !£ !¢ !∞ @º !ª !• !§ !¶ !™ DIGITAL WIRELESS REAR SPEAKER !£ ANTENNA (FM/AM) IMPEDANCE SELECTOR !¢ TV/LD AC power cord !∞ DVD/LD AC OUTLET !§ VIDEO 2 FRONT SPEAKERS (A/B) !¶ VIDEO 1 SPEAKERS (FRONT) !•...

  • Page 6: Test Mode

    SECTION 2 TEST MODE FLUORESCENT INDICATOR TUBE TEST MODE SOUND FIELD CLEAR MODE * All fluorescent segments are tested. When this test is activated, * The preset sound field is cleared when this mode is activated. all segments turn on at the same time, then each segment turns on Use this mode before returning the product to clients upon one after another.

  • Page 7: Diagrams

    STR-DE725 SECTION 3 DIAGRAMS 3-1. CIRCUIT BOARDS LOCATION THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this necessary note is printed in each block.) AC board For schematic diagrams. For printed wiring boards. Note:...

  • Page 8: Block Diagram - Main Section

    STR-DE725 3-2. BLOCK DIAGRAM – MAIN SECTION – AUDIO SELECT IC301 TM301 SELECTOR TUNER UNIT ANTENNA IC303 J305 AUDIO CODEC VOLUME L OUT RY301 75Ω IC405 TV/DBS INPUT IC1103 RV401 VOL CONT IC304 IC1104 IC1104 IC1104 IC414 R OUT R CH...

  • Page 9: Block Diagram - Power Section

    STR-DE725 3-3. BLOCK DIAGRAM – POWER SECTION – POWER AMP(L) R CH IC501 J701 PHONES 13 VCC RY602 BOOSTER Q506 RELAY DRIVE LIMITER Q601 Q504 • RCH is omitted LIMITER Q511 Q505 • Signal Path PROTECTOR Q509,510 TM501 BOOSTER CUR DET...

  • Page 10: Printed Wiring Board - Amp Section

    STR-DE725 3-4. PRINTED WIRING BOARD — AMP SECTION — • See page 7 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D501 (Page 37) (Page 34) (Page 34) (Page 37) (Page 43) D502 (Page 26) (Page 33) D503...

  • Page 11: Schematic Diagram - Amp Section

    STR-DE725 3-5. SCHEMATIC DIAGRAM — AMP SECTION — The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. — 15 — — 16 —...

  • Page 12: Printed Wiring Board - Video Section

    STR-DE725 3-6. PRINTED WIRING BOARD — VIDEO SECTION — • See page 7 for Circuit Boards Location. VIDEO BOARD S-LINK TV/DBS DVD/LD VIDEO 2 VIDEO 1 MONITOR CTRL A1 VIDEO IN VIDEO IN VIDEO OUT VIDEO IN VIDEO OUT VIDEO IN...

  • Page 13: Schematic Diagram - Video Section

    STR-DE725 3-7. SCHEMATIC DIAGRAM — VIDEO SECTION — • See pages 61 for IC Block Diagrams. — 19 — — 20 —...

  • Page 14: Printed Wiring Board -Audio Section

    STR-DE725 3-8. PRINTED WIRING BOARD — AUDIO SECTION — • See page 7 for Circuit Boards Location. • Semiconductor Location Ref. No. Location (Page 25) (Page 26) IC303 IC408 IC409 TUNER BOARD IC410 VOLUME BOARD (Page 43) (Page 26) MASTER VOLUME...

  • Page 15: Schematic Diagram - Audio Section

    STR-DE725 3-9. SCHEMATIC DIAGRAM — AUDIO SECTION — — 23 — — 24 —...

  • Page 16: Printed Wiring Board - Input Section

    STR-DE725 3-10. PRINTED WIRING BOARD — INPUT SECTION — • See page 7 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D301 F-10 IC301 INPUT BOARD IC302 (Page 14) (Page 34) (Page 22) (Page 14) IC304 IC401 C-12...

  • Page 17: Schematic Diagram - Input Section

    STR-DE725 3-11. SCHEMATIC DIAGRAM — INPUT SECTION — • See page 61 for IC Block Diagrams. The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. — 27 —...

  • Page 18: Printed Wiring Board — Display Section

    STR-DE725 3-12. PRINTED WIRING BOARD — DISPLAY SECTION — • See page 7 for Circuit Boards Location. • Semiconductor Location Ref. No. Location (Page 43) DISPLAY BOARD D100 D101 (Page 17) D102 B-13 C192 D103 JW231 D104 C-12 MULTI D105...

  • Page 19: Schematic Diagram - Display Section

    STR-DE725 3-13. SCHEMATIC DIAGRAM — DISPLAY SECTION — • See page 8 for Waveform. • See page 51 for IC Pin Function Description. • See page 61 for IC Block Diagrams. The components identified by mark ! or dotted line with mark ! are critical for safety.

  • Page 20: Printed Wiring Board - Speaker Section

    STR-DE725 3-14. PRINTED WIRING BOARD — SPEAKER SECTION — • See page 7 for Circuit Boards Location. • Semiconductor Location Ref. No. Location (Page 26) (Page 13) D543 D605 D606 REAR AMP BOARD D607 F-12 D649 D701 D702 D703 D704...

  • Page 21: Schematic Diagram - Speaker Section

    STR-DE725 3-15. SCHEMATIC DIAGRAM — SPEAKER SECTION — The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. — 35 — — 36 —...

  • Page 22: Printed Wiring Board - Power Section

    STR-DE725 3-16. PRINTED WIRING BOARD — POWER SECTION — • See page 7 for Circuit Boards Location. • Semiconductor Location Ref. No. Location CNJ901 D808 AC OUTLET D901 D902 REG BOARD D903 AC BOARD D904 D905 D906 D907 IC801 IC802...

  • Page 23: Schematic Diagram - Power Section

    STR-DE725 3-17. SCHEMATIC DIAGRAM — POWER SECTION — • See page 61 for IC Block Diagrams. The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. — 39 —...

  • Page 24: Digital (Side A) Section

    STR-DE725 3-18. PRINTED WIRING BOARD — DIGITAL (SIDE A) SECTION — • See page 7 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D. IN/OUT BOARD D1201 D1205 DIGITAL BOARD (SIDE A) (SIDE A) D1206 IC1005 D-13 IC1006...

  • Page 25: Digital (Side B) Section

    STR-DE725 3-19. PRINTED WIRING BOARD — DIGITAL (SIDE B) SECTION — • See page 7 for Circuit Boards Location. • Semiconductor D. IN/OUT BOARD Location DIGITAL BOARD (SIDE B) (SIDE B) Ref. No. Location D1202 D1203 C1309 D1204 JW11 IC1001...

  • Page 26: Schematic Diagram - Digital Section (1/3)

    STR-DE725 3-20. SCHEMATIC DIAGRAM — DIGITAL SECTION (1/3)— • • • See page 41,43 for Printed Wiring Board. See page 51 for IC Pin Functions. See page 61 for IC Block Diagrams. — 45 — — 46 —...

  • Page 27: Schematic Diagram - Digital Section (2/3)

    STR-DE725 3-21. SCHEMATIC DIAGRAM — DIGITAL SECTION (2/3)— • • • See page 41,43 for Printed Wiring Board. See page 51 for IC Pin Functions. See page 8 for Waveforms. — 47 — — 48 —...

  • Page 28: Schematic Diagram - Digital Section (3/3)

    STR-DE725 3-22. SCHEMATIC DIAGRAM — DIGITAL SECTION (3/3)— • • • • See page 41,43 for Printed Wiring Board. See page 51 for IC Pin Functions. See page 8 for Waveforms. See page 61 for IC Block Diagrams. — 49 —...

  • Page 29: Ic Pin Function Description

    3-23. IC PIN FUNCTION DESCRIPTION IC1103 AK4526 (DIGITAL BOARD) Pin No. Pin Name Description SDTO source select pin SDOS “L”: internal ADC output, “H”: DAUX input ORed with serial control register if P/S = “L” (Connected to Ground) MCKO clock frequency select pin MCLK “L”: MCLK, “H”: MCLK/2.
  • Page 30 Pin No. Pin Name Description RIN– Rch analog negative input pin RIN+ Rch analog positive input pin VREFL Negative voltage reference input pin, AVSS (Connected to Ground) Common voltage output pin, AVDD/2 VCOM Large external capacitor is used to reduce power-supply noise VREFH Positive voltage reference input pin, AVDD A.
  • Page 31 IC1401 CXD2712R (DIGITAL BOARD) Pin No. Pin Name Description VSS3 — Ground 2 – 5 SOA – SOD Serial data output 6, 7 ECJ0, ECJ1 Conditional jump input terminal (7pin Connected to Ground) — No connection XHDWR HCIF data write XHDRD HCIF data read —...
  • Page 32 Pin No. Pin Name Description — Ground 92 – 94 EA13 – EA15 External RAM address output EA16 Not used TSTA Test data input “L” = normal “H” = test (Connecting to Ground) PLDIVF PLL input frequency select “L” = 256Fs “H” = 128Fs (Connecting to Ground) PLDIVB PLL output frequency select “L”...
  • Page 33 IC1101 CAD8495AQ (DIGITAL BOARD) Pin No. Pin Name Description DOUT/V EIAJ data and parity flag output terminal (Not used) EMPHA Emphasis monitor output terminal (“H” = ON) Input terminal for RC generator/oscillator Output terminal for RC generator/oscillator CCB/SUB Microprocessor I/F select input terminal (CCB: H, @SUB@: L) (Connecting to Ground) D.
  • Page 34 IC1201 MB90574PFV-G-161-BND (DIGITAL BOARD) Pin No. Pin Name Description — — Not used (Connected to Ground) RESET RF demodulator/DIR reset To AK4526 chip select CCLK To AK4526 clock CDT1 To AK4526 data input CDTO To AK4526 data output To AK4526 reset —...
  • Page 35 Pin No. Pin Name Description DISPMR Display master request (Connected to MB90553 U.MREQ) DISPDATA Display data (Connected to MB90553 U.DATA) SLV DTA/REQ Slave data/request (Connected to MB90553 U.SREQ) — Power supply +5 V DISP CLK Display clock (Connected to MB90553 U.CLOCK) To tuner TM301 latch DATA To tuner TM301 data...
  • Page 36 Pin No. Pin Name Description RY-FRONT/A Front speaker A relay RY-FRONT/B Front speaker B relay RY-CENTER Center speaker relay RY-REAR Rear speaker relay WOOFER-RY Sub Woofer relay RY-HP Head phone relay RY-POWER Power relay RY-DIR-PASS Direct pass relay DIG-IN 2 Digital input select 2 (74HC151) DIG-IN 1 Digital input select 1 (74HC151)
  • Page 37 IC102 MB90553PF-G-131-BND (DISPLAY BOARD) Pin No. Pin Name Description LED V1 VIDEO 1 VISUAL display data output to LED LED V2 VIDEO 2 AUDIO display data output to LED LED V3 VIDEO 3 VISUAL display data output to LED LED-DVD/LD DVD/LD AUDIO display data output to LED LED-TV/DBS DVD/LD VISUAL display data output to LED...
  • Page 38 Pin No. Pin Name Description MD 2 MD 2 (To MD2 of MB90574) HSTX Hardware STANDBY input RDS CLOCK RDS clock input RDS DATA RDS data input VOL UP Volume up data output VOL DOWN Volume down data output — —...

  • Page 39: Ic Block Diagrams

    3-24. IC BLOCK DIAGRAMS IC1301 CS4923 (DIGITAL BOARD) 26 25 24 23 22 CMPREQ,LRCKN2 CLK IN COMPRESSED DIGITAL CLKSEL DATA INPUT AUDIO FILTD INTERFACE CLOCK INPUT SP DIF FILTS MANAGER INTERFACE RECEIVER VDDA VSSA DATA0,EMAD0,GPIO0 DATA1,EMAD1,GPIO1 FRAMER SHIFTER RESET DATA2,EMAD2,GPIO2 INPUT BUFFER INPUT BUFFER CONTROLLER DATA3,EMAD3,GPIO3...
  • Page 40 IC901 NJM2103D (REG BOARD) RESET – + VREF + – OUTC VSB/SESIN – – IC1101 CXD8495AQ (DIGITAL BOARD) TIMING X' TAL GENERATOR LD/DQSY D GND SRDT SBCK MUTING SFSY OUTPUT DI/SWDT ERROR LOCK DETECTION CE/XLAT SBSY CL/SCLK DIN1 V IN DATA DIN2 A GND...
  • Page 41 IC301 LC7822 (INPUT BOARD) IN IN LEVEL SHIFT LATCH RESET SHIFT RESISTOR IC501, IC601, IC701 uPC2581V (INPUT BOARD) BIAS CIRCUIT PROTECTOR DRIVE DRIVE DRIVE DRIVE IC414, IC415, IC416 TC9299P (INPUT BOARD) L-CH R-CH L-ch R-ch DATA DATA LATCH LATCH CIRCUIT CIRCUIT A-GND A-GND...

  • Page 42: Exploded Views

    X-4949-627-1 KNOB (VOL) ASSY * 10 4-982-682-01 CASE (414532) 4-998-717-01 KNOB (BAL) 4-210-291-01 SCREW (CASE 3 TP2) 4-996-698-01 EMBLEM, SONY 1-773-161-11 WIRE (FLAT TYPE) (21 CORE) X-4949-745-1 PANEL ASSY, FRONT 1-769-959-11 WIRE (FLAT TYPE) (11 CORE) 4-989-850-01 BUTTON (BB) * 14...

  • Page 43: Chassis Section

    4-2. CHASSIS SECTION not supplied not supplied T901 not supplied not supplied not supplied TM301 not supplied not supplied Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks * 52 1-670-006-11 H.P BOARD 1-773-285-11 WIRE (FLAT TYPE) (29 CORE) * 53 4-924-098-31 HOLDER, PC BOARD * 67...

  • Page 44: Electrical Parts List

    SECTION 5 AMPLIFIER 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 45 AMPLIFIER Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks D549 8-719-911-19 DIODE 1SS119 Q557 8-749-010-26 TRANSISTOR MP1620-OPY-M D551 8-719-911-19 DIODE 1SS119 Q558 8-729-140-82 TRANSISTOR 2SA988-PAFAEA D552 8-719-109-51 DIODE RD2.0ES-B2 Q559 8-729-281-53 TRANSISTOR 2SC1815-GR D553 8-719-109-51 DIODE RD2.0ES-B2 Q560 8-729-900-63 TRANSISTOR DTA124ES D554...
  • Page 46 AMPLIFIER AUDIO D.IN/OUT Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R582 1-249-437-11 CARBON 1/4W CC58 1-162-282-31 CERAMIC 100PF ! R583 1-249-393-11 CARBON 1/4W F CC59 1-162-282-31 CERAMIC 100PF ! R584 1-249-389-11 CARBON 1/4W F CC60 1-162-282-31 CERAMIC 100PF R585...
  • Page 47 D.IN/OUT DIGITAL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < RESISTOR > C1172 1-126-233-11 ELECT 22uF C1173 1-106-347-00 MYLAR 1500PF 200V R1001 1-216-022-00 METAL CHIP 1/10W C1174 1-126-233-11 ELECT 22uF R1002 1-216-022-00 METAL CHIP 1/10W C1175 1-126-233-11 ELECT 22uF...
  • Page 48 DIGITAL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < DIODE > < RESISTOR > D1101 8-719-016-74 DIODE 1SS352 R1101 1-216-025-91 RES, CHIP 1/10W D1201 8-719-016-74 DIODE 1SS352 R1102 1-216-025-91 RES, CHIP 1/10W D1202 8-719-801-78 DIODE 1SS184 R1103 1-216-025-91 RES, CHIP 1/10W...
  • Page 49 DIGITAL Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R1156 1-216-049-91 RES, CHIP 1/10W R1239 1-216-073-00 METAL CHIP 1/10W R1157 1-216-295-91 SHORT R1240 1-216-073-00 METAL CHIP 1/10W R1158 1-216-025-91 RES, CHIP 1/10W R1241 1-216-073-00 METAL CHIP 1/10W R1159 1-216-025-91 RES, CHIP...

  • Page 50: Digital Display

    DIGITAL DISPLAY Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R1314 1-216-295-91 SHORT C121 1-104-664-11 ELECT 47uF R1315 1-216-295-91 SHORT C122 1-164-159-11 CERAMIC 0.1uF R1316 1-216-295-91 SHORT C123 1-164-159-11 CERAMIC 0.1uF R1317 1-216-295-91 SHORT C124 1-162-294-31 CERAMIC 0.001uF R1318 1-216-295-91 SHORT...
  • Page 51 DISPLAY Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks Q112 8-729-900-36 TRANSISTOR DTC124ES R175 1-249-415-11 CARBON 1/4W F Q113 8-729-900-36 TRANSISTOR DTC124ES R176 1-249-413-11 CARBON 1/4W F Q114 8-729-900-36 TRANSISTOR DTC124ES R177 1-249-411-11 CARBON 1/4W Q116 8-729-900-36 TRANSISTOR DTC124ES R178 1-249-417-11 CARBON...
  • Page 52 INPUT Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4414-093-A INPUT BOARD, COMPLETE C502 1-162-282-31 CERAMIC 100PF C503 1-102-233-00 CERAMIC 33PF 500V ********************* C504 1-102-230-00 CERAMIC 0.25PF 500V 7-685-872-09 SCREW +BVTT 3 × 8 (S) C505 1-126-934-11 ELECT 220uF C539...
  • Page 53 INPUT Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < IC > R346 1-249-397-11 CARBON 1/4W F R347 1-249-397-11 CARBON 1/4W F IC301 8-759-805-14 IC LC7822 R351 1-249-401-11 CARBON 1/4W F IC302 8-759-636-74 IC M5218AP-22 R352 1-249-441-11 CARBON 100K 1/4W...
  • Page 54 INPUT JOINT REAR AMP Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks ! R593 1-249-381-11 CARBON 1/4W F < CONNECTOR > R594 1-249-425-11 CARBON 4.7K 1/4W F R601 1-249-417-11 CARBON 1/4W F * CNP701 1-564-241-11 PIN, CONNECTOR (B4P-VH) 4P R602 1-249-439-11 CARBON 1/4W...
  • Page 55 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4414-109-A REG BOARD, COMPLETE < RESISTOR > ******************** R902 1-249-429-11 CARBON 1/4W 1-533-217-31 HOLDER, FUSE R903 1-249-425-11 CARBON 4.7K 1/4W F R904 1-249-417-11 CARBON 1/4W F < CAPACITOR > R905 1-249-428-11 CARBON 8.2K...
  • Page 56 SP SW Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < TRANSISTOR > 1-670-010-11 SP SW BOARD ************ Q544 8-729-119-79 TRANSISTOR 2SC2785-FEK Q609 8-729-281-53 TRANSISTOR 2SC1815-GR < DIODE > Q610 8-729-900-63 TRANSISTOR DTA124ES Q611 8-729-900-63 TRANSISTOR DTA124ES D120 8-719-911-19 DIODE 1SS119 Q645...
  • Page 57 TUNER VIDEO Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks R151 1-249-417-11 CARBON 1/4W F 1-670-003-11 VIDEO BOARD R152 1-249-421-11 CARBON 2.2K 1/4W F *********** R153 1-249-419-11 CARBON 1.5K 1/4W F R154 1-249-419-11 CARBON 1.5K 1/4W F <...
  • Page 58 STR-DE725 VOLUME Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks A-4414-304-A VOLUME BOARD, COMPLETE < VARIABLE RESISTOR > ************************ 1-225-446-11 RES, VAR, CARBON 100K × 6 (Including L.B BOARD) RV401 (MASTER VOLUME) < CAPACITOR > RV402...

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