Sony STR-K995 Service Manual

STR-K995

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SERVICE MANUAL

Ver. 1.0 2007.05

TEL 13942296513 QQ 376315150 892498299

• STR-K995 is the tuner and the amplifier section in HT-DDW995.

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.

SPECIFICATIONS

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US Model

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AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION:

With 6 ohm loads, b oth ch annels drive n, 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 outpu t.

Amplifier section

Power Output Models of area code US Stereo mode (rated) (6 ohms 1 kHz

Surround mode (reference) (6 ohms 1 kHz

THD 10%)

1)

90 W + 90 W

RMS output FRONT: 140 W per channel CENTER: 140 W SURROUND: 140 W per channel

, THD 1%)

2)

1)

Measured under the following conditions:

Area code Power requirements

US 120 V AC, 60 Hz

2)

Reference power outpu t for fro nt , c ent e r and surround speakers. Depending on the sound field settings and the source, there ma y be no sound output.

Inputs

Analog Sensitivity: 800 mV/

Digital (Coaxial) Impedance: 75 oh m s

Outputs (Analog)

,

AUDIO OUT Voltage: 800 mV/

SUBWOOFER Voltage: 2 V/1 kohm

Tone

Gain levels ±6 dB, 1 dB step

Reproduction frequency range:

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50 kohms

10 kohms

28 – 20,000 Hz

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FM tuner section

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Tuning range 87.5 - 108.0 MHz Antenna FM wire antenna Antenna terminals 75 ohms, unbalanced Intermedia te frequency

AM tuner section

Tuning range

With 10-kHz tuning scale:

With 9-kHz tuning scale:

Antenna Loop antenna Intermedia te frequency

3)

You can change the AM tuning scale to 9 kH z 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 tu ning scal e. To reset the scale to 10 kHz (or 9 kHz), repea t the procedure.

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10.7 MHz

530 – 1,710 kHz

531 – 1,710 kHz

450 kHz

— Continued on next page —

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Sony Corporation

Home Audio Division Published by Sony Techno Create Corporation

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MULTI CHANNEL AV RECEIVER

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Video section

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Inputs/Outputs

Video: 1 Vp-p, 75 ohms COMPONENT VIDEO:

General

Power requirements

Area code Power requirements

US 120 V AC, 60 Hz

TEL 13942296513 QQ 376315150 892498299

Power output (DIGITAL MEDIA PORT)

DC OUT: 5 V, 700 mA

Power consumption

Area code Power consumption

US 200 W

Power consumption (during stand by mode)

Dimensions (width/height/depth) (Approx.)

Mass (Approx.) 7.8 kg (17 lb 4 oz)

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Y: 1 Vp-p, 75 ohms P 75 ohms P 75 ohms 80 MHz HD Pass Through

0.3 W

430 × 157.5 × 310 mm (17 × 6 1/4 × 12 1/4 inches) including projec t i ng parts and controls

B/CB

: 0.7 Vp-p,

R/CR

: 0.7 Vp-p,

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SAFETY CHECK-OUT

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After correcting the original service problem, perform the following safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes.). Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA WT -540A. Follow the manuf acturers’ instructions to use these instruments.

2. A battery-operated AC milliammeter . The Data Precision 245 digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter . The “limit” indication is 0.75 V, so analog meters must hav e an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V A C range are suitable. (See Fig. A)

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To Exposed Metal Parts on Set

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Design and specifications are subject to change without notice.

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AC

1.5 k

0.15 µF

Fig. A. Using an AC voltmeter to check AC leakage.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 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.

Ω

Earth Ground

voltmete (0.75 V)

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Notes on chip component replacement

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• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be

UNLEADED SOLDER

Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with

Unleaded solder has the following characteristics.

• Unleaded solder melts at a temperature about 40 °C higher

• Strong viscosity

• Usable with ordinary solder

About area codes

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Th

e area code of the receiver you purchased is shown on the lower right portion of the rear panel (see the illustration below).

BACK PANEL

LL

NT ARSURROUND

RS

Any differences in operation , according to the area code, are clearly indicated in the text, for example, “Models of area code AA only”.

Moreover, it is possible to distinguish the model by Part No..

Model Part No.

US Model 2-897-800-9

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damaged by heat.

the lead free mark due to their particular size)

: LEAD FREE MARK

than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 °C. Caution: The printed pattern (copper foil) may peel away if

Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.

It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.

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the heated tip is applied for too long, so be careful!

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CENTER

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Part No.

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Area code

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1. GENERAL ................................................................... 4

2. TEST MODE ............................................................... 11

3. ELECTRICAL ADJUSTMENT ............................. 13

4. DIAGRAMS................................................................. 14

4-1. Block Diagram – MAIN Section –.................................. 15

4-2. Block Diagram – DISPLAY/POWER Section –............. 16

4-3. Block Diagram – HDMI Section –.................................. 17

4-4. Printed Wiring Board – DIGITAL Board (Side A) –...... 18

4-5. Printed Wiring Board – DIGITAL Board (Side B) –...... 19

4-6. Schematic Diagram – DIGITAL Board (1/5) – .............. 20

4-7. Schematic Diagram – DIGITAL Board (2/5) – .............. 21

4-8. Schematic Diagram – DIGITAL Board (3/5) – .............. 22

4-9. Schematic Diagram – DIGITAL Board (4/5) – .............. 23

4-10. Schematic Diagram – DIGITAL Board (5/5) – .............. 24

4-11. Printed Wiring Board – MAIN Board – ......................... 25

4-12. Schematic Diagram – MAIN Board (1/4) – ................... 26

4-13. Schematic Diagram – MAIN Board (2/4) – ................... 27

4-14. Schematic Diagram – MAIN Board (3/4) – ................... 28

4-15. Schematic Diagram – MAIN Board (4/4) – ................... 29

4-16. Printed Wiring Boards

4-17. Schematic Diagram

4-18. Printed Wiring Boards

4-19. Schematic Diagram

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4-20. Printed Wiring Boards

4-21. Schematic Diagram

4-22. Printed Wiring Boards

4-23. Schematic Diagram

4-24. Printed Wiring Board – HDMI RE Board – ................... 38

4-25. Schematic Diagram – HDMI RE Board (1/2) – ............. 39

4-26. Schematic Diagram – HDMI RE Board (2/2) – ............. 40

5. EXPLODED VIEWS

5-1. Front Panel Section ......................................................... 56

5-2. Chassis Section................................................................ 57

6. ELECTRICAL PARTS LIST .................................. 58

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– DISPLAY Board, POWER KEY Board – .................... 30

– DISPLAY Board, POWER KEY Board – .................... 31

– STANDBY Board, DCDC Board – .............................. 32

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– STANDBY Board, DCDC Board – .............................. 33

– DCAC Board, VIDEO3 Board – .................................. 34

– DCAC Board, VIDEO3 Board – .................................. 35

– VIDEO Board, HEADPHONE Board –....................... 36

– VIDEO Board, HEADPHONE Board –....................... 37

The letters (L, C, R, etc.) indicate the ch annels being played back. The boxes around the letters vary to show how the receiver downmixes the source sound. Front Left Front Right Center (monaural) Surround Left Surround Right Surround (monaural or the surround component s obt ai ne d by Pro Logic processing)

Example:

Recordin g forma t (Fro nt/ Surround): 3/2.1 Sound Field: A.F.D. AUTO

SW

L C R

SL SR

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MONOD.RANGE

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Rear panel

DIGITAL

(ASSIGNABLE)

OPTICAL

SAT

IN

VIDEO 2/

BD IN

COAXIAL

DVD

IN

DMPORT

A DIGITAL INPUT/OUTPUT sec t ion

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B COMPONENT VIDEO INPUT/

OUTPUT section

Green (Y)

Blue

B/CB)

(P Red

(P

R/CR)

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ANTENNA

AM

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R

OUT IN

SA-CD/CD/CD-R

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OPTICAL IN jack

COAXIAL IN jack

HDMI IN/ OUT jack

DMPORT jack

COMPONENT VIDEO INPUT/ OUTPUT jack

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L

R

IN

TV

a)

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DVD IN

VIDEO 2/BD IN

HDMI

VIDEO OUT

VIDEO IN

AUDIO IN

SAT

L

R

a)

VIDEO IN

VIDEO OUT

VIDEO IN

AUDIO IN

DVD

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MONITOR

L

AUDIO OUT

R

AUDIO IN

AUDIO OUT

SUB

WOOFER

VIDEO 1

Connects to a DVD player, etc. The COAXIAL jack provides a better quality of loud sound (page 23,

25). Connects to a DVD

player, or a Blu-ray disc player. The image and the sound are output to a TV or a projector (page 20).

Connect to a DIGITAL MEDIA PORT adapter (page 60).

Connects to a DVD player, TV, satellite tuner, etc. You can enjoy high quality image (page 22, 23, 25).

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OUT

SAT IN

DVD IN VIDEO 1 IN

COMPONENT VIDEO

FRONT B

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P

B/CB

PR/C

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MONITOR OUT

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FRONT A

SPEAKERS

C SPEAKERS section

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D VIDEO/AU DIO INPUT/OUTPUT

SURROUND

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section

White (L)

Red (R)

Yellow

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CENTER

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AUDIO IN/ OUT jack

VIDEO IN/ OUT jack

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Connects to speakers (page 17).

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Connects to sub woofer (page 17).

Connects the video and audio jacks of a VCR, a DVD player, etc. (page 22–26).

a)

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You can watch the sele cted inp ut imag e when yo u connect the HDMI OUT or MONITOR OUT jack to a TV (page 22).

You can use the supplied remote to operate the receiver and to control the Son y audio/video components that the remote is assigned to operate. You can also program the remote to control non-Sony audio/video components. For details, see “Programming the remote” (page

66).

RM-AAP017

E AUDIO INPUT/OUTPUT section

AUDIO IN/ OUT jack

Connects to Super Audio CD player, CD player, etc. (page 18).

F ANTENNA section

FM ANTENNA jack

Connects to the FM wire antenna supplied with this receiver (page 27).

AM ANTENNA terminals

Connects to the AM loop antenna supplied with this receiver (page 27).

White (L)

Red (R)

Remote commander

SYSTEM STANDBY

TUNING –

DISC SKIP

MUTING

TOP MENU MENU F1

TV INPUT WIDE

F2

TV VOL

MASTER VOL

TV CH

PRESET

TUNING +

GUIDE

DISPLAY

RETURN/

EXIT

OPTIONS

TOOLS

REPLAY ADVANCE

TV

VIDEO 1 VIDEO 2 VIDEO 3 DVD

SAT TV TUNER

2CH A.F.D. MOVIE MUSIC

SLEEP

FM MODE D. TUNING

SA-CD/CD

AUXDMPORT RECEIVER

RM SET UP

?/1

MEMORY

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MENU

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CLEAR

>10

–/– –

<

DVD

23 456 789

ENTER

0/10

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AV ?/1

AUTO CAL

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Name Function

A AV ?/1

(on/standby)

B ?/1

(on/standby)

C Input

buttons

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Press to turn on or off the audio/video com ponents that the remote is programmed to operate. To turn the TV on or off, press TV (Z) and then press AV ?/1. If you press ?/1 (B) at the same time, it will turn off the receiver and other components (SYSTEM STANDBY).

Note

The function of the AV ?/1 switch changes automatically each time you press the input buttons (3).

Press to turn th e r e ceiver on or off. To turn off all components, press ?/1 and AV ?/1 (A) at the same time (SYSTEM STANDBY).

Press one of the buttons to select the comp onent you want to use. When you press any of the input buttons, the receiver turns on. The but tons are factory assigned to control Sony components as follows. You can program the remote to control non-So ny components following the steps in “Programming the remote” on page 66.

Button Assigned Sony

VIDEO 1 VCR (VTR mode 3) VIDEO 2 VCR (VTR mode 2) VIDEO 3 VCR (VTR mode 1) DVDDVD player SATSatellite tuner TV TV SA-CD/CD Super Audio CD/

TUNER Built-in tuner AUXNot assigned DMPORT DIGITAL MEDIA

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component

CD player

PORT adapter

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Name Function

D RECEIVER Press to activate the receiver

E 2CH Press to select a sound field

A.F.D. MOVIE MUSIC

F D. TUNING Press to enter direct tuning

G AUTO CAL Pr ess to activate the Auto

H Numeric

buttons (number 5

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I ENTER Press to enter the v alue after

MEMORY Press to store a station during

J DISPLAY Press to select inf or mation

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operation (page 39).

(page 49, 51, 53).

mode.

Calibration function. Press to

–preset/tune to preset stations.

a)

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–select track numbers of the

CD player, VCD player, LD player, DVD player, MD deck, DAT deck, or tape deck. Press 0/10 to select track number 10.

–select chann el numb ers o f th e

VCR, satellite tuner, Blu-ray disc recorder, PSX, DVD/ VHS COMBO or DVD/HDD COMBO. Press TV (Z) and then press the numeric b uttons to sele ct the TV channels.

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selecting a channe l, disc or track using the nu meric bu ttons of the VCR, CD player, V C D player, LD player, MD deck, DAT deck, tape deck, satellite tuner, Blu-ray disc recorder or PSX. To enter the value of Sony TV, press TV (Z) and then press ENTER.

tuner operation.

displayed on the TV screen of the VCR, VCD player, LD player, DVD player, CD player, MD deck, Blu-ray disc recorder, PSX, satellite tuner, DVD/VHS COMBO or DVD/ HDD COMBO. To select information of Sony TV, press TV (Z) and then press DISPLAY.

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K OPTIONS

L MENU Press to display the menus of

M H

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Name Function

TOOLS

a) b)

b)

X

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Press to display and select items from the option menus for DVD player or DVD/VHS COMBO. To display the options of Sony TV, press TV (Z) and then press OPTIONS TOOLS.

the receiver, VCR, DVD player, satell ite tuner, B lu-ray disc recorder, PSX, DVD/VHS COMBO or DVD/HDD COMBO on the TV screen.

Then, use V/v/B/b and to perform menu operations. To display the menus of Sony TV, press TV (Z) and then press MENU.

Press to start playback of the

VCR, CD player, VCD player,

LD player, DVD player, MD

deck, DAT deck, tape deck,

Blu-ray disc recorder, PSX,

DVD/VHS COMBO or DVD/

HDD COMBO.

Press to pause playback or

recording of th e VCR, CD

player, VCD player , LD pl ayer,

DVD player, MD deck, DAT

deck, tape deck, Blu-ray disc

recorder, PSX, DVD/VHS

COMBO or DVD/HDD

COMBO. (Also starts

recording with comp on en ts in

recording standby.)

Press to stop playback of the

VCR, CD player, VCD player,

LD player, DVD player, MD

deck, DAT deck, tape deck,

Blu-ray disc recorder, PSX,

DVD/VHS COMBO or DVD/

HDD COMBO.

b)

Press to

–search tracks in the forward/

backward di rectio n of the CD player, VCD player, DVD player, LD player, MD deck, Blu-ray disc recorder, PSX, DVD/VHS COMBO, or DVD/HDD COMBO.

–fast forward/rewind of the

VCR, DAT deck, or tape deck.

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Name Function

N TV CH +

O F1, F2 Press F1 or F2 to select a

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P DVD TOP

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/–

3

b)

Press to skip tracks of the VCR, CD player, VCD player, LD player, DVD player, MD deck, DAT deck, tape deck, Blu-ray disc recorder, PSX, DVD/VHS COMBO or DVD/ HDD COMBO.

Press to replay the previous scene or fast forward the current scene of the DVD player, Blu-ray di sc recorder, DVD/VHS COMBO or DVD/ HDD COMBO.

a)

/– Press TV (Z) and then press

TV CH +/– to select preset TV channels.

Press to –select preset stations. –select preset channels of the

VCR, satellite tun er, Blu- ray disc recorder, DVD player, DVD/VHS COMBO or DVD/HDD COMBO.

component.

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– DVD/HDD COMBO

F1: HDD mode F2: DVD mode

– DVD/VHS COMBO

F1: DVD mode F2: VHS mode

TV INPUT to select the input signal (TV input or video input).

WIDE to select the wide picture mode.

Press to display the menu or on-screen guide of the DVD player on the TV screen. Then, use V/v/B/b and to perform menu operations.

the DVD player on the TV screen. Then, u se V/v/B/b and

operations.

./>

TUNING +/– Press to scan a station. REPLAY /

ADVANCE

PRESET

a)

+

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TV INPUT Press TV (Z) and then press

WIDE Press TV (Z) and then press

MENU

DVD MENU Press to display the menu of

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to perform menu

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Name Function

Q TV VOL +/– Press TV (Z) and then press

MASTER VOL +/–

MUTING Press to mute the sound

R DISC SKIP Press to skip disc of the CD

S RETURN/

EXIT O

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U GUIDE Press to display the EPG

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TV VOL +/– to adjust the TV volume level.

Press to adjust the volume level of all speakers at the same time.

(page 35). To mute the sound of the TV, press TV (Z) and then press MUTING.

player, VCD player, DVD player or MD deck (multi-disc changer only).

Press to –return to the previous menu. –exit the menu while the

To return to the previous menu of Sony TV, press TV (Z) and then pres s RETURN/EXIT O.

After pressing RECE IV ER (D), press MENU (L) for receiver operation, then press V/v/B/b to sel ect th e s ettin gs. After pressing DVD TOP MENU (P) or DVD MENU (P), press V/v/B/b to select the settings, and then press

Press also to enter the selection of the receiver, VCR, satellite tuner, DVD player, Blu-ray disc record er, PSX, DVD/VHS COMBO or DVD/HDD COMBO.

(Electronic Program Guide) of the TV, DVD player, satellite tuner, Blu-ray disc recorder, PSX or DVD/HDD COMBO.

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menu or on-screen guide of the VCD player, LD player, DVD player, Blu-ray disc recorder, PSX, DVD/VHS COMBO or satellite tuner is displayed on the TV screen.

to enter the selection.

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Name Function

V -/-- Press to select the channel

CLEAR Press to clear a mistake when

>10 Press to select track numbers

W FM MODE Press to select FM mona ural

X SLEEP Press to activate the Sleep

Y RM SET UP Press to set up the remote.

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Z TV Press to light up the button. It

a)

The number 5, PRESET +, TV CH + and H buttons have tactile dots. Use the tactile dots as references when operating the re ceiver.

b)

The button is also availa ble for DIGITAL MEDIA PORT adapter operation. For details on the function of the button, see the ope rating instructions supplied with the DIGITAL MEDIA PORT adapter.

Notes

Some functions explained in this section may not

work depending on the mo de l.

The above explanation is intended to serve as an

example only. Therefore, depending on the component, the ab ove operation may no t be possible or may operate differently than described.

The AUX button on the remote is not av aila ble for

receiver opera tion.

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entry mode, either one or two digit of the VCR or satellite tuner. To select the channel entry mode of the TV, press TV (Z) and then press -/--.

you press the incorre ct numeric button of the DVD player, Blu-ray di sc recorder, PSX, satellite tuner, DVD/ VHS COMBO or DVD/HDD COMBO.

over 10 of the CD player, VCD player, LD player, MD deck, tape deck, TV, VCR or satellite tuner.

or stereo reception.

Timer function and the duration which the receiver turns off automatically.

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changes the remote key function to activate the buttons with orange printing. It also activate the DISPLAY (J), OPTIONS TOOLS (K), MENU (L), RETURN/EXIT O (S),

(T) and V/v/B/b (T) buttons to perform menu operations for Sony TVs only.

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SPK Front Left

DCAC MIC

Receiver

SECTION 2

TEST MODE

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TEL 13942296513 QQ 376315150 892498299

SOUND FIELD CLEAR MODE

Q

The preset sound field is cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair.

Procedure:

1. While depressing the 2CH button, press the power ?/1 button to turn on the main power.

2. The message “S.F. CLR.” appears and initialization is performed. (3 second)

SOFTWARE VERSION DISPLAY MODE

The software version is displayed.

Procedure:

1. While depressing the SPEAKERS (OFF/A/B/A+B) and the DISPLAY buttons simultaneously, press the power ?/1 button to turn on the main power.

2. The model name, destination and the software version are displayed. (8 second)

KEY CHECK MODE

Button check

Procedure:

1. While depressing the SPEAKERS (OFF/A/B/A+B) and the 2CH buttons simultaneously , press the power ?/1 button to turn on the main power. “REST 13” appears.

2. Every pressing of any button other than ?/1 counts down the buttons. The buttons which are already counted once are not counted again.

3. When all buttons are pressed “REST 00” appears.

TEL

13942296513

FLUORESCENT INDICATOR TUBE TEST MODE

All fluorescent segments are tested. When this test is acti v ated, all segments turn on at the same time, then each segment turns on one after another.

Procedure:

1. While depressing the TUNING MODE and the DISPLAY buttons simultaneously, press the power ?/1 button to turn on the main power.

2. All segments turn on.

• Blue LED of MULTI CHANNEL DECODING lights.

LFE

SW

L C R

SLSSR

SB SBRSBL

SP A SP B

;

6

D EX

;

1

OPT

5

DTS-ES 96 / 24

3

MULTI CHANNEL DECODING

PL II x;PL

HDMI COAX

1

Blue LED

NEO:6 SAT D.RANGE

CAT

5

MEMORY

dB k Hz mft.

MHz

0

Q

RDS ST

MONO

5. Turn the INPUT SELECTOR dial once again. All segments

6. Every turning of the INPUT SELECTOR dial turns on each

SWAP ALL MODE

The signal will be swapped to all channels so that all speakers will have sound output.

Procedure:

1. While depressing the SPEAKERS (OFF/A/B/A+B) and the

2. “SWAP” appears. (No change while displayed.)

SHIPMENT MODE

All preset contents are reset to the default setting.

Procedure:

1. While depressing the SPEAKERS (OFF/A/B/A+B) and the

2. “CLEARED” appears and switch off the set.

PROTECTOR

If an error occurs, the “Protector Display” will flash for a while and the power is turned OFF.

Procedure:

1. While depressing the TUNING – and the A.F.D. buttons

2. “PROTEVER” appears (3 seconds).

7

3

DCAC FACTORY TEST MODE

DCAC Factory Test mode have two stages:

1. DCAC DSP Data Line Checking

2. DCAC board Checking

Factory Test System Setup

4

2

9

8

turn off.

segment one after another in the same order.

A.F .D. buttons simultaneously, press the power ?/1 button to turn on the main power.

MUSIC buttons simultaneously, press the power ?/1 but- ton to turn on the main power.

simultaneously, press the power ?/1 button to turn on the main power.

0

5

1

5

1

3

6

Start Pass Pass

DSP Data Line

Check

9

8

9

2

Auto Cal Mic

8

4

Check

2

9

8

9

2

9

END

TEL 13942296513 QQ 376315150 892498299

3. Turn the INPUT SELECTOR dial.

• Blue LED of MULTI CHANNEL DECODING is turned off.

MULTI CHANNEL DECODING

LFE

SP B

L R

S

4. Turn the INPUT SELECTOR dial once again.

• Blue LED of MULTI CHANNEL DECODING lights.

LFE

SPA

w

SPB

w

.

x

MULTI CHANNEL DECODING

EX

;

PL ll X

HDMI COAX

xia

OPT

Blue LED

NEO:6 D.RANGE MONOCOAX

Blue LED

CAT

96/24

-ES SAT

NEO:6

o

y

k m

MHz

MEMORY

D.RANGE

u

dB

Hz

ft.

RDS

ST

MONO

1

1. When power off : Press the three buttons MEMORY/ENTER + MOVIE + ?/1 . “DCAC[]FTM” appears. Afterward, press the TUNING MODE to start DCAC f actory test mode.

6

3

.

c

o

m

11

STR-K995

1.DCAC DSP Data Line Checking

Q

After press the TUNING MODE , DCAC Factory test mode will start, below display will show:

“DCAC[][][]x” x = 1, 2, 3, 4 If there is error happen, below display will show:

“ERR[]SD0x” x = 1 → D1501 or R1530

2.DCAC board Checking

Connect front left speaker of the receiver and AUTO CAL microphone. Turn MASTER V OLUME jog, there will be test tone sound output from front left speaker, and the display will change

TEL 13942296513 QQ 376315150 892498299

accordingly.

“AD[]-[]xxx” xxx = 0 to 255 (depends on loudness of test tone)

VACS CONTROL

The VACS feature of the amplifier is turned off purposely.

Procedure:

1. While depressing the MEMORY/ENTER and the 2CH buttons simultaneously, press the power ?/1 button to turn on the main power.

2. “VACS OFF” appears. (8 second)

7

3

x = 2 → D1502 problem x = 3 → D1503 problem x = 4 → D1504 problem

6

3

1

5

1

5

0

8

9

2

4

9

8

2

9

TEL 13942296513 QQ 376315150 892498299

AM CHANNEL STEP 9 kHz/10 kHz SELECTION MODE

• Either the 9 kHz step or 10 kHz step can be selected for the AM channel step.

TEL

• Procedure: Set the FUNCTION to AM. Turn off the main power. While depressing the TUNING MODE button, press the power ?/1 button to turn on the main power. Either the message “9 k STEP” or “10 k STEP” appears. Select the desired step.

BLUE LED TEST MODE

• LED illumination check

Procedure:

1. While depressing the TUNING MODE and INPUT MODE simultaneously, press ?/1 . Then, “B. LED ON” or “B. LED OFF” is displayed.

2. When “B. LED ON” is displayed, the LED of the “MULTI CHANNEL DECODING” area at the top of the display illuminates.

13942296513

Q

3

7

6

3

1

5

1

5

0

8

9

2

4

9

8

2

9

12

w

.

xia

o

y

u

1

6

3

.

c

o

m

SECTION 3

ELECTRICAL ADJUSTMENT

STR-K995

7

Q

TEL 13942296513 QQ 376315150 892498299

3

TUNER SECTION

[FM Auto Stop Check]

SET

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

Deviation : 75 kHz Modulation : 1 kHz ANT input : 35 dBu (EMF)

Note: Please use 75 ohm “coaxial cable” to connect SG and the set. You

cannot use video cable for checking. Please use SG whose output impedance is 75 ohm.

6

3

1

5

1

OUT (75

5

generator

Ω

)

0

8

9

2

4

9

8

2

9

TEL 13942296513 QQ 376315150 892498299

3. Set to FM tuner function and scan the input FM signal with automatic scanning.

4. Confirm that input Frequency of A, B and C are detected and

TEL

automatic scanning stops.

13942296513

The stop of automatic scanning means “The station signal is received in good condition.”

Q

3

7

6

3

1

5

1

5

0

8

9

2

4

9

8

2

9

w

.

xia

o

y

u

1

6

3

.

c

o

m

13

STR-K995

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.)

Q

3

7

6

3

1

5

1

5

0

8

9

2

4

9

8

2

9

For Schematic Diagrams. Note:

• All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or less are not indicated except f or electrolytics and tantalums.

• All resistors are in Ω and 1/ specified.

• % : indicates tolerance.

• f : internal component.

• 2 : nonflammable resistor.

• 5 : fusible resistor.

• C : panel designation. Note: The components identified by mark 0 or dotted

TEL 13942296513 QQ 376315150 892498299

• A : B+ Line.

• B : B– Line.

•Voltages and w av ef orms are dc with respect to ground un-

•Voltages are taken with a VOM (Input impedance 10 MΩ).

•Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

• Signal path.

line with mark 0 are critical for safety. Replace only with part number specified.

der no-signal (detuned) conditions. No mark : FM

Voltage variations may be noted due to normal production tolerances.

F : FM J : ANALOG c : DIGITAL I : VIDEO

4

W or less unless otherwise

For Printed Wiring Boards. Note:

• X : parts extracted from the component side.

• a: Through hole.

• f : internal component.

• : Pattern from the side which enables seeing. Caution:

Pattern face side: Parts on the pattern face side seen from (Side B) the pattern face are indicated. Parts face side: P arts on the parts face side seen from (Side A) the parts face are indicated.

• Indication of transistor.

C

Q

B

E

B

These are omitted.

CE

TEL 13942296513 QQ 376315150 892498299

These are omitted.

TEL

• Circuit Boards Location

13942296513

POWER KEY board

DCAC board

HEADPHONE board

STANDBY board

VIDEO 3 board

Q

DCDC board

DISPLAY board

Q

3

6

7

3

HDMI RE board

MAIN board

1

5

1

VIDEO board

8

0

5

DIGITAL board

9

2

4

9

8

2

9

14

w

.

xia

o

y

u

1

6

3

.

c

o

m

STR-K995

4-1. BLOCK DIAGRAM – MAIN SECTION –

J402(1/2)

VIDEO 1

AUDIO IN

Q

SA-CD/CD/CD-R

SAT

DVD

VIDEO 3 IN/

PORTABLE AV IN

J405 (1/2)

TV

J403 (1/2)

AUDIO IN

J298(1/2)

AUDIO

DMPORT

J1311

3

IN

13

L

C LINK_TX

6 5

C LINK_RX

7

DET

TEL 13942296513 QQ 376315150 892498299

HDMI SECTION

(Page 17)

DIGITAL

HDMI SECTION

(Page 17)

T

ANTENNA

COAXIAL

OPTICAL

SPDIF

E

HDMI_MUTE

C

J1301

DVD

IN

BD IN

SAT

IC1351

OPTICAL

IN

IC1354

OPTICAL

IN

VIDEO 2/

B

L

COAXIAL

FM

75Ω

AM

1

7

DMPORT+5V,VBUS+5V

IC1303

35

TN1

TUNER PACK

3

L CH

FM

R CH

AM

CLK

IC3002 31

IC1303

62

6

5

9

DO

DI

CE

SD

IC1302

2 14

R-CH

TUNER +10V10V

4

6

7

27

117

TUNER SD

2

79

TUN_LAP

TUNER_CLK

26

80

TUN_DO

TUNER_DATA

2

104

3

102

C LINK_DET

1

IC1017

2

1

6

9

6

48 4742 41 45 46 49 50 39 63

103

DIR_DI

DIR_CE

DIR_DO

DIR_CLK

TC74HC153_A

TC74HC153_B

FLASH1/C LINK_TX

FLASH2/C LINK_RX

5

38

DIR_ERROR

DIR_XSTATE

5

3

4

35

36

38

37

1

34

17

48

47

DIR_XMODE

DIR_CKSEL1

5

IC1301

DIGITAL AUDIO

I/F RECEIVER

XMCK

DIN2

DIN0

DIN1

CK OUT

BCK

LRCK

DATAO

DOUT

DI

CLK

CE

3

ERROR

XSTATE

XMODE

CKSEL1

XIN XOUT

22 21

X1301

12.288MHz

IC1907(1/3)

SYSTEM CONTROLLER

20

13

14

15

16

24AUDIO

D1301

1

DIR_DATA0

ERROR_SEL

IC401

ANALOG SOUND

PROCESSOR

24

34

32

30

26

28

36

38

41

49

50

51

56

53

0

54

60

59

V_COMP_SW2

V_COMP_SW1

V_MUTE

2930

28

INBL

4

INGL

INFL

INEL

INCL

INDL

INHL

INIL

AOUTL

INCL

INCSL

INCC

INCSW

INCSR

INCSL

DATA

CLK

IC1131

EEPROM

SDA SCL

5 6

97 98

EEPROM_DATA

5

101

67

74

6583

99

100

GP9

GP12

HD OUT

HD IN

HCLK

HCS

0

AD CONVERTER

15

SCK

12

DOUT

11

BCK

10

IC1501

AUDIO DSP

EXLOCK59

17

BCKI1

SCK OUT

Q

12 9

X1502

13.9MHz

BCKO

SDO1

SDO2

SDO3

SDO4

MCLK1

14

20

19LRCKO

23

24

25

26

IC1502

SRAM

IC1503

SELECTOR

556

Y

S 6

64

2

B

1

A

BST_SEL

3

Q

BST

15

LRCKI1

18 SDI1

22

KFSI0

29

BCKI2

28

LRCKI2

30

SDI2

69

GP8

68

GP9

37

GP12

35

HD OUT

33

HD IN

34

HCLK

36

HCS

32

HACN

PM

113

2

XRST

MCLK2

68

73

69

PM

HACN

DSP_RESET

LRCK

7

D1501

_

D1504

66

87

BST

DCAC_DSP_IN

IC1401

RST

7

6

37

27

PCM1609_ML

PCM1609/_RESET

VIDEO 3 IN/

PORTABLE AV IN

8

LIN

1

3

5

4

PCM1609_MC

PCM1609_MDI

VIDEO 1

SAT

DVD

75

PCM1609_MDO

38

40

41

47

45

46

37

36

35

34

1

33

J201 (1/2)

VIDEO IN

J200(1/2)

VIDEO IN

J298(2/2)

VIDEO

IC1452

AUDIO CODEC

SCKI

BCK

LRCK

DATA3

DATA1

DATA2

RST

ML

MC

MDI

MDO

9

VOUT5

VOUT6

VOUT3

VOUT4

VOUT2

5

VOUT1

10

12

11

13

14

9

1

2

IC1403 31

IC1403 57

IC1404 31

IC1404 57

IC1405 31

IC1405 57

5

10

11

VOL_DA

VOL_CL

ROUTAL

ROUTBL

OUT SL

OUTSW

8

EEPROM_CLK

13

V1

3

SAT

5

DVD

9

V3

44

9

46

OUT L

88

85

OUTC

86

81

9

V_SW1

V_SW3

V_SW4

V_SW2

31 3332

34

14

10

SW14SW36SW42SW5

SW2

IC203

VIDEO AMP

2

D204

D203

M.OUT

V1OUT

8

4

1

15

L

SL

C

SW

9

2

A

(Page 16)

8

DISPLAY /POWER SECTION

2

J402 (2/2)

9

J405 (2/2)

OUT

9

VIDEO OUT

AUDIO OUT

SA-CD/CD/CD-R

9

J201(2/2)

J200(2/2)

VIDEO 1

9

TEL 13942296513 QQ 376315150 892498299

MONITOR

VIDEO 1

STR-K995

w

.

x

i

a

o

y

• R-CH is omitted due to same as L-CH.

• Signal Path

: FM

: ANALOG

u

: DIGITAL

1

: VIDEO

6

3

1515

COMPONENT

VIDEO

.

VIDEO 1 IN

DVD IN

SAT IN

J301

Y

P

B/CB

P

R/CR

Y

P

B/CB

P

R/CR

c

Y

P

B/CB

P

R/CR

o

1

m

5

12

CH1 IN1

CH2 IN17

CH3 IN116

CH1 IN23

CH2 IN29

CH3 IN214

CH1 IN3

CH2 IN311

CH3 IN3

4

SW12SW2

IC304

VIDEO AMP

21

P.SAVE

CH1 OUT

CH2 OUT

CH3 OUT

J302

22

20

18

Y

MONITOR

P

B/CB

P

R/CR

CONPONENT

OUT

VIDEO

STR-K995

4-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION –

12

9

11

12

9

11

12

9

11-V OUT2

IC2000

AMP

5 1

X0

X1

78

Q701,702

LIMITER

Q651,652

LIMITER

Q501,502

LIMITER

3

FL_LAT

FL_CLK71FL_DATA

70

7

9

5V

Q703

BOOSTER

Q704

BOOSTER

Q653

BOOSTER

Q654

BOOSTER

Q503

BOOSTER

Q504

BOOSTER

113

4

DCAC IN

4

5

2

1

9

10

.

6

Q705,706

CURRENT

DETECT

Q655,656

CURRENT

DETECT

Q505,506

CURRENT

DETECT

2

IC101

2

Q722,723,725

6

3

8

x

3

Q793,795 PROTECT

SWITCH

12

PROTECTOR

7

8

9

R-CH

R-CH R-CH

SR-CH

9

6

R-CH

IC100

FL DRIVE

14

SEG1-17

DIN

29 31

CLK

STB

42

32

GRID1-11

SW1

1

i

Q

MAIN

SECTION

TEL 13942296513 QQ 376315150 892498299

(Page 15)

AUTO CAL MIC

SW

Q

L

A

SLSL

C

T

J2000

w

E

L

IC103

REMOTE

CONTROL

RECEIVER

w

X1101

12.5MHz

3

IC701

POWER AMP

+V OUT2

8

IN2

-V OUT2

IC601

POWER AMP

+V OUT2

IN2

8

-V OUT2

IC501

POWER AMP

+V OUT2

8

IN2

2

NF2

1

58

57

82 SIRCS IN

w

1

5

SR-CH

D841 VACS

CONTROL

119

SYSTEM CONTROLLER

FLUORESCENT

INDICATOR TUBE

a

1

VACS CTRL

IC1907 (2/3)

FL101

5

Q740

AF POWER

PROTECT

Q640

AF POWER

PROTECT

SR-CH

Q540

AF POWER

PROTECT

3

D1107

D1108

D1109

D1110

D1111

F1 F2

o

1

22

SW_RY

5V

D105

Q110

23

25

17

24

HP_RY

C/REAR/SB_RY

FRONT_A_RY/DG51_FB

FRONT_B_RY/DG51_FA

VOL_ENCODER(B)_UP

VOL_ENCODER(A)_DOWN

15

16

3 2

ENCODER

RV102

MASTER VOLUME

y

J309

5

Q560 RELAY DRIVE

Q611 RELAY DRIVE

Q710 RELAY DRIVE

Q610 RELAY DRIVE

Q612 RELAY DRIVE

Q790 RELAY DRIVE

u

RY560

RY710

RY701

RY601

RY610

RY791

INPUT_ENCODER_B

INPUT_ENCODER_A

21

20

3 2

ENCODER

RV101

INPUT

SELECTOR

0

S109-112,115

1

R-CH

SR-CH

Q

8

AD_KEY1

114

FUNCTION

KEY

R-CH

HP_DETECT

1

3

1

5

3

7

1

Q

AUDIO OUT

TM602

L

RR-CH

TB001

L

R

L

R

TM604

13

BRIDGABLE_RY

AD_KEY2

115

FUNCTION

KEY

S101-108

6

94

HDMI_CTRL

SUB WOOFER

FRONT B

FRONT A

(IMPEDANCE USE 6-16Ω)

SURROUND

CENTER

7

3

J790

PHONES

AVCC

VCC

NMI

VCC

RESET_TRG

INIT

STOP

SUB_T

POWER_RY

POWER_KEY

85

S100

?/1

3

SPEAKERS

109

77

56

51

44

19

62

55

81

7

9

6

3.3V

1.8V

RESET TRG

IC1700

SYSTEM

RESET

.

8

DMPORT

+5V

HDMI

+5V

IC3519(1/2)

TX5V_PWR

IC3528

3

IC1710

+1.8V

REG

1

1 2

4

9

IC1906

+5V

4 2

REG

IC3516

+5V

4 5

REG

41

IC3526

+3.3V

4 2

REG

5

c

1

2

IC3527

+3.3V

4 2

REG

1

IC1111

RESET

1 2

o

VIDEO

+5V

2

TUNER

+10V

RELAY

+B

AUDIO

+7V

AUDIO

+5V

AUDIO

-7V

VIDEO

-5V

FL101

-20V

POWER AMP

-B

5

+5V

+3.3V

+2.5V

+3.3V

(STBY)

IC807

+5V

2 1

REG

IC1902

4

3 1

IC801

1 3

IC1001

3 1

IC802

3 2

IC804

2 1

IC4001

+7V

2 1

REG

IC4100

+4.1V

2 1

REG

+B

-B

-20V REG

Q691,692

SWITCH

IC691

PROTECT

2 7

DET

0

IC1031

+5V

3 1

REG

IC1901

+3.3V

2

REG

+2.5V

5

REG

IC1904

+3.3V

3 1

REG

AC DET

• R-CH is omitted due to same as L-CH.

• Signal Path

m

+10V REG

+7V REG

+5V REG

-7V

REG

-5V REG

Q801

-B

Q809 RELAY DRIVE

4

D1001

Q921

: FM

8

9

D920-923

D802

R803

9

RY801

D4001

D910-913

2

D805-808

Q922

D914

Q901 RELAY DRIVE

REG

F4001

F4002

4

F1

F2

Q923

8

D915

RY901

D924

9

T901

T903

2

8

2

F901

9

AC IN

9

TEL 13942296513 QQ 376315150 892498299

9

STR-K995

1616

4-3. BLOCK DIAGRAM – HDMI SECTION –

3

77,76, 74,73,

71,70

67,68

64

63

62

58,57, 55,54,

52,51

49,48

46

45

44

9

Q1704

SW

Q1701-1703

BUFFER

B21,A21

SCL2

SDA2

HPD2

6

1

IC3503

SELECTOR

13

18

1,3,4,6,7,9

10,12

15

16

19

18

13

1,3,4,6,7,9

10,12

15

16

19

3

7

3.3V

9

D3511

D3512

Q3505

CLOCK +/-

Q3506

CLOCK +/-

4

6

D1701

SW

SCL

SDA

SW

SCL

SDA

2

Q

DVD IN

3

CN3501

TEL 13942296513 QQ 376315150 892498299

HDMI

VIDEO 2 /

BD IN

CN3502

T

E

L

1

Y4,Z4 Y3,Z3 Y2,Z2 Y1,Z1

HPD_SINK

5

SCL_SINK

SDA_SINK

XOE

STR-K995

IC1907(3/3)

SYSTEM CONTROLLER

5

91

88

25,26, 28,29, 31,32, 34,35

S1

21

S2

22

S3

23

42

40

1

3

38

39

1

CE0

HDMI_S289HDMI_S12HDMI_RESET1HDMI_MUTE

90

TX

33

RX

34

TMDS_S1

51

TMDS_S2

52

TMDS_S3

53

TMDS_OEB

54

RX_HPDI

21

TX_RST

42

TX_INT

43

P5V_SELB

55

P5V_SELA

56

IC3507

DATA BUFFER

SCLA

SDAA

3

IC3519(2/2)

SUB CPU

XOUT

11 13

X3502

10MHz

SCLB

SDAB

5

RESET

RX_RST

RX_INT

EEPROMSEL1

XIN

72

6

MUTE

CSCL

CSDA

10

19

20

65

27

28

35

0

CSCL

CSDA

Q

1

2

BCK

LRCK

CSCL

5

RX

QE0 - QE23

1

VSYNC

ODCK

HSYNC

SCK

SD0

SD1

SD2

SD3

MCLK

SPDIF

9

124-121 117-114 111-108

105-99

96-92

1

119

DE

127

128

76

WS

75

74

73

72

71

79

70

5

8

3

C

EEPROM

6

5

IC3509

SCL

SDA

MAIN SECTION

(Page 15)

7

WP

7

50,51, 54,55, 58,59, 62,63

89

91

67

40

39

6

RXC -/+ RX0 -/+ RX1 -/+ RX2 -/+

RESET

INT

MUTE

CSCL

CSDA

IC3511

3

HDMI_MUTE

D3502

IC3521

12

Q

14

1

5

10

D3501

13

3

0

4

49-58 61-65 67-70 75-79

66

80

12

11

10

43

44

42

18

17

2

1

9

8

7

6

5

8

D0 - D23

VSYNC

IDCK

DE

HSYNC

SCK

WS

SD0

SD1

SD2

SD3

MCLK

SPDIF

CSCL

CSDA

RESET

HPD

INT

9

IC3513

TX

9

TX0 +/TX1 +/TX2 +/-

TXC +/-

2

DSCL

DSDA

8

29,30, 32,33, 35,36

26,27

20

19

4

9

2

HDMI +5V

8

CLOCK +/-

Q3504

DATA

BUFFER

2

9

1,3,4,6,7,9

10,12

9

CN3504

13

HDMI

OUT

15

16

18

19

9

TEL 13942296513 QQ 376315150 892498299

w

• R-CH is omitted due to same as L-CH.

• Signal Path

: DIGITAL

: VIDEO

.

x

i

a

o

3.3V

y

42

DSDL

41

DSDA

IC3501

3

1

4

5

10

9

12

13

u

3

6

8

11

1

SELECTOR

2

4

5

6

IC3504

9 10

3 44

3

PWR5V

.

XTALOUT

84 85

28.322MHz

X3501

XTALIN

c

o

m

SPDIF

B

MAIN SECTION

(Page 15)

STR-K995

1717

STR-K995

4-4. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE A) –

Q

12

3

7

6

• See page 14 for Circuit Boards Location.

3

345678

A

DIGITAL BOARD

TEL 13942296513 QQ 376315150 892498299

B

C

D

E

F

T

E

L

1

J1311

DMPORT

3

9

4

CL043

C1921

R1351

CL042

C1920

R1354

IC1302

D1302

2

R1356

C1361

W1000

FB1505

FB1504

CL044

C1911

IC1401

C1362

C1415

C1414

R1410

R1411

FB1350

R1301

FB1310

C1302

IC1303

9

R1357

R1358

CL045

CL046

L1403

C1404

C1401

C1409

C1408

JR1005

R1359

FB1453

R1327

C1301

R1303

C1304

C1303

JR1008

C1405

C1316

R1304

6

R1469

R1401

FB1405

R1407

1

FB1309

R1318

R1321

C1315

IC1301

R1308

R1307

R1306

5

R1319

R1360

JR1511

JR1020

R1305

R1556

R1502

IC1452

R1642

FB1452

C1002

R1309

1

D1301

C1522

FB1503

R1492

R1484

5

CNS506

R1312

R1313

R1325

R1310

FB1305

X1502

C1521

C1460

C1461

R1483

C1483

C1487

R1951

R1505

1

(SIDE A)

C1951

R1331

C1952

R1952

C1331

IC1017

R1311

X1301

R1501

C1509

C1511

3

R1511

R1512

R1523

R1513

R1504

R1506

R1507

IC1403

R1491

R1444 C1404

R1486

5

D

C1949

R1253

R1702

R1134

R1135

R1953

C1953

IC1502

RB1506 RB1504

R1516

R1508

C1443

R1446

RB1502RB1501

IC1501

C1472

C1471

IC1404

R1470

R1473

C1474

R1445

R1531

C1475

R1476

:Uses unleaded solder.

0

HDMI RE

BOARD

CN3512

(Page 38)

C1913

C1950

R1949

R1014

R1013

R1140

R1555

R1557

RB1500

RB1507

RB1503

RB1508

IC1111

1

R1574

R1573

IC1503

R1495

R1493

R1434

C1462

C1432

R1464

R1435

R1436

C1569

Q

R1570

R1571

R1572

R1541

R1514

C1502

R1510

IC1405

R1463

R1426

C1567

Q

R1150

R1143

R1144

R1160

R1161

C1704

C1706

R1494

R1466

R1424

C1422

R1425

C1424

C1568

5

4

C1701

R1703

R1709

R1711

R1120

R1704

R1012

R1701

IC1710

C1703

3

R1710

C1702

Q1703

R1707

R1713

E

Q1704

R1154

R1333

C1705

7

JW1700

R1714

E

Q1701

Q1702

D1701

R1705

R1716

E

R1151

R1121

R1076

IC1131

6

R1712

1 334

X1101

R1153

R1084

R1042

R1708

R1964

C1495

8

D1001

R1050

R1041

3

R1044

5

IC1700

IC1907

R1156

R1332

R1152

C1142

R1157

R1015

1

R1194

C1031

R1010

R1107

R1961

R1962

C1118

C1119

R1164

9

R1110

R1125

R1011

5

R1062

R1067

R1066

R1065

C1129

R1061

R1068

R1636

C1605

C1620

R1635

R1035

R1126

R1111

R1122

R1123

R1083

R1108

1

R1201

R1114

W1001

R1112

2

R1946

R1106

5

C1123

C1122

C1066

R1118

R1117

R1175

R1129

0

C1067

C1068

R1124

C1807

FB1308

R1077

4

1-872-697-

8

R1181

R1182

R1179

R1180

R1088

R1073

R1072

LP1000

9

2

14

(14)

8

4

2

• Semiconductor Location

Ref. No.

D1001 C-6 D1301 D-3 D1302 C-3 D1701 D-6

IC1017 C-4 IC1111 D-5 IC1131 F-6 IC1301 C-3 IC1302 C-3 IC1303 D-3 IC1401 E-2 IC1403 E-4 IC1404 F-4 IC1405 F-5 IC1452 E-3 IC1501 D-4 IC1502 C-4 IC1503 E-5

2

8

9

IC1700 D-6 IC1710 D-6 IC1907 E-6

Q1701 D-6 Q1702 D-6 Q1703 D-6 Q1704 E-6

9

Location

9

TEL 13942296513 QQ 376315150 892498299

STR-K995

w

.

x

i

a

o

y

u

1

6

1818

3

.

c

o

m

STR-K995

4-5. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE B) –

Q

3

7

6

3

1

DIGITAL BOARD

• Semiconductor Location

TEL 13942296513 QQ 376315150 892498299

Ref. No.

D1003 E-3 D1004 E-4 D1107 C-7 D1108 C-7 D1109 C-7 D1110 C-7 D1111 C-7 D1501 D-3 D1502 D-3 D1503 D-3 D1504 D-4

IC1001 F-3 IC1031 B-8 IC1351 C-2 IC1354 C-2 IC1901 B-7 IC1902 B-5 IC1904 C-6 IC1906 E-2

T

Location

E

L

MAIN

BOARD

CNP913

(Page 25)

1

3

DISPLAY

BOARD

CNS100

(Page 30)

for

FLASH

PROGRAMMING

U

H

9

4

2

IC1031

2

9

CL029

CL030

CL031

CL032

CNS504

JL1000

CL035

1

3

C1032

CNS511

6

CL028

CL034

CL033

R1105

R1078

C1905

C1908

R1186

• See page 14 for Circuit Boards Location.

5

1

5

(SIDE B)

HS1901

CL025

C1071

IC1901

CNP505

IC1904

C1985

CL022

5

R1192

C1140 R1039

R1187

R1184

R1183

R1185

C1171

R1191

C1172

C1149

1

C1906

D1109

C1144

R1188

C1145

C1131

D1108

C1100

CNP506

D1111

C1132

3

R1954

C1022

D1107

C1342

C1103

C1102

R1941

R1163

D1110

C1021

FB1101

R1947

R1948

C1079

CL021

JR1000

JR1010

C1146

R1159

C1970

C1667

1

3

C1124

C1141

C1604

C1971

C1661

C1121

C1139

CL037

C1255

C1961

R1093

CL036

CNS502

C1707

C1254

R1960

0

STANDBY

BOARD

CNP903

(Page 32)

C

JR1001

C1960

CL039

:Uses unleaded solder.

MAIN

BOARD

CNP912

(Page 25)

B

C1518

Q

IC1902

1

FB1502

FB1501

C1515

Q

C1517

R1644

C1423

C1458

3

C1525

C1516

JR1003

C1463

C1418

C1004

CL016

C1914

3

CL041

C1019

R1643

CL017

7

C1506

C1433

C1428

C1566

ANTENNA

FM

COAXIAL

6

C1513

C1508

C1507

C1505

R1645

C1547

TN1

AM

CNS507

C1520

C1519

JR1002

C1514

C1473

C1468

8

75

CL019

3

C1504

CL040

CNS501

C1510

1

C1503 C1501

CL020

R1641

JL001

9

CL018

R1260

R1261

C1987

5

C1481

C1442

IC1001

C1805 C1804

CL013

FB1302

D1504

D1004

C1491

C1448C1438

C1806

CL012

C1310

C1309

1

CL006

CL005

CL010 CL007

C1313

C1986

R1314

C1312

R1530

D1501

D1502

D1503

D1003

C1450

2

(Page 36)

CL004

CL008

CL009

CL011

R1323

5

C1455

C1001

3

1

3456789

VIDEO

BOARD

CNS206

A

CNS509

C1803

C2281

C1314

C1308

C1306

0

C1358

R1503

C1494

R1474

C1454

C1005

4

CL002

CL003

C1802

C1305

R1302

R1355

C1457

C1403

C1402

C1801

JR1009

JR1006

C1359

C1355

C1919

R1409

C1407C1406

DCDC

BOARD

CN4103

(Page 32)

E

CL001

CL023

C1800

8

R1637

C1910

9

CNP512

CL024

IC1354

3

C1354

R1096

1

IC1351

3

C1351

1

9

IC1906

R1353

1-872-697-

2

R1352

8

4

9

14

(14)

2

SAT IN

VIDEO 2/

BD IN

8

J1301

COAXIAL

DVD IN

OPTICAL

2

12

9

DIGITAL

9

A

B

TEL 13942296513 QQ 376315150 892498299

C

D

E

F

STR-K995

w

.

x

i

a

o

y

MAIN

BOARD

G

CN500

(Page 25)

u

1

6

3

1919

.

F

MAIN

BOARD

CNP501

(Page 25)

c

o

G

m

STR-K995

4-6. SCHEMATIC DIAGRAM – DIGITAL BOARD (1/5) –

• See page 41 for Waveform. • See page 42 for IC Block Diagram.

1 2 3 4 5 6 7 8 9 10 11 12 13

Q

3

7

6

3

A

B

DIGITAL BOARD (1/5)

C

TEL 13942296513 QQ 376315150 892498299

R1354

9

C1361

R1356

0.1 470

R1358

470k

C1355

22

25V

2.6

8765

IC1303

TC7WU04FU(TE12R)

FB1504

0uH

C1362

0.01

IC1302

AUDIO IN SELECT

IC B/D

100

C1354

0.1

100R1351

0.1C1351

6

1.2

2.5

1.4

IC1303

T

E

D

E

G

H

K

F

L

I

J

DMPORT

OPTICAL

DIGITAL

COAXIAL

1

SAT IN

VIDEO 2 BD IN

3

DVD

IN

P GND

VBUS +5V

CLINK_RX

CLINK_TX

CLINK_DET

DGND

CLINK_WM_DET

CLINK_WM_AD

AGND

CLINK_L

CLINK_R

WM_RXD

WM_TXD

VIDEO

VIDEO_GND

IC1354

OPTICAL IN

2

GND

0.1

1

OUT

VCC

TORX147L

GND

OUT

TORX147L

VCC

OPTICAL IN

W1001

CL043

CL042

CL044

CL045

CL046

2

3

2

1

3

R1355

C1921

FB1505

3.3

0.1

3.3

75

C1920

0.1

R1096

10k

1kR1352

1kR1353

2

0uH

IC1354

IC1351

J1301

9

4

J1311

18P

1

2

3

NC

4

+5V

5

6

7

8

9

10

11

12

13

14

15

16

17

18

1

5

R1357

47k

1.2

4321

R1359

100

INVERTER

FB1350

0uH

1

5

C2281

10V 470

3.3

0

0.1

3

C1358

0.1

C1359

1000

6.3V

D1302

MA111-TX

0uH

FB1310

C1316

0.1

IC1302

TC74ACT153F(EL)

1

STROBE

B

1C3

1C2

5432

1C1

6

1C0

1Y

87

GND2 Y

C1987

0.1

1

VCC

STROBE

A

2C3

2C2

2C1

2C0

C1302

0.01 JR1005

R1303

33k

C1303

0.1

C1304

0.01

FB1302

0uH

0

R1304

16 15 14 13 12 11

10 9

R1327

100

R1301

5.6k

R1302

4.7k

3.3

100

C1301

5

0.1

2.5

0.1

3.3

2.9

3.3

C1305

C1306

0

CNS509

7P

FB1309

0uH

C1800 1000p

C1801 1000p

C1802 1000p

R1318

R1323

47

1.6

10k

46

CKSEL1

Q

BCK

1.6

22

R1306

D1301

MA111-TX

45

CKSEL0

DOSEL1

IC1301

LC89056W-E

LRCK

DATAO

1.6

100

R1308

C1314

0.1

3.3

43

44

DOSEL0

Q

DIGITAL AUDIO

I/F RECEIVER

IC B/D

IC1301

XSTATE

1.6

100R1309

10k

C1315

0.1

3.200

48

XMODE

DISEL

DOUT

DINO

DIN1

DIN2

DGND

DVDD

R_SDIN

987654321

VIN_AGND

10 11 12

LPF

AVDD

AGND

0.1

47 16V

CKOUT

1314151617181920212223

1.6

R1360

100

JR1020

0

V-SW4

DVDD

DGND

3.3

C1308

0.1

V-SW3

42

DGND

3

DVDD

0uHFB1305

41

1.6

0

R1319

A

V-SW2

40

MODEL1

XMCK

1.6

V-SW1

C1309

VIDEO BOARD

CNS206

(Page 37)

V MUTE

COMP-S2

COMP-S1

1234567

C1805 1000p

C1804 1000p

C1803 1000p

C1986

0.1

3.300

37

38

39

CE

CLK

XSEL

MODE0

3

BPSYNC

AUTO_VREF

F3/P3/C3_VF/DATA02

F2/P2/C2_F2/DLMP

F1/P1/C1_F1/FSB1

F0/P0/C0_F0/FSB0

CSFLAG

XOUT

XIN

EMPHA

AUDIO

24

0

1.6

R1325

R1311

0

1M

X1301

12.288MHz

C1310

18p

C1331

0.1

C1952

0.01

R1952

10k

C1806 1000p

DI

DOUT

ERROR

7

DGND

DVDD

100R1311

JR1511

3.3

8

VCC

TC7WH157FK

A

IC1017

1

3.3

R1331

100

0R1321

252627282930313233343536

R1307

0uH

0

3.3

6

3.3

100

R1305

680

3.3

/G

B

R1951 10k

C1951 0.01

/A B

/Y

HDMI RE

8

BOARD

(1/2)

CN3512

D

(Page 39)

HDMI_CEC_IN

HDMI_RESET

HDMI_UART_RX

HDMI_UART_TX

HDMI_REG_CTL

1234567

R1314

10k

R1312

3

100

C1312

0.1

3.3

567

GND Y

432

HDMI_ERROR(MUTE)

100pC1313

1

R1953

10k

9

HDMI_SPDIF

CNS506

7P

R1332

100

5

C1953

0.01

1

IC1017

SELECTOR

2

CL013

CL011

CL010

CL008

CL007

CL006

CL005

CL004

CL003

CL002

CL001

5

No mark:FM

0

100R1313

4

18

5

6

7

9

10

11

12

13

14

15

16

17

19

20

21

22

23

24

25

26

27

28

29

30

31

32

34

55

33

39

40

3

2

35

8

2

8

4

9

DIGITAL

3

BOARD

(4/5)

(Page 23)

DIGITAL

4

BOARD

(5/5)

(Page 24)

9

DIGITAL

1

BOARD

(2/5)

(Page 21)

9

2

8

2

9

TEL 13942296513 QQ 376315150 892498299

9

STR-K995

w

L

w

.

x

i

a

o

2

DIGITAL BOARD

(3/5)

(Page 22)

y

u

8983 84 85 86 87 88 90 91

1

6

2020

3

.

c

o

m

STR-K995

4-7. SCHEMATIC DIAGRAM – DIGITAL BOARD (2/5) –

• See page 41 for Waveform. • See page 47 for IC Pin Function Description.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Q

3

7

6

3

1

A

B

CNS507

DIGITAL BOARD (2/5)

2

1

DIGITAL BOARD

(1/5)

(Page 20)

3

33

35

39

40

R1949

47k

FB1501

C1949

0.1

R1253

0uH

C

TEL 13942296513 QQ 376315150 892498299

D

E

1k

R1260

1k

R1261

C1517

C1518

0.1

470 10V

F

C1510

C1503

0.1

27p

C1521

1M

R1512

6

0.1

C1511

0.1

0.1C1501

220R1523

10kR1513

T

E

L

G

1

H

37

38

41

3

9

4

2

X1502

13.9MHz

FB1503

0uH

R1511

C1522

100R1504

100R1505

100R1506

100R1507

9

10k

27p

100R1502

220R1503

42

I

J

5

DIGITAL BOARD

(3/5)

(Page 22)

43

44

45

46

47

48

49

50

K

L

51

M

52

w

N

.

x

i

9P

CL020

C1950

220p

10k

5

1101112131415161718192021222324252627282930

3.3

2.6

1.8

98765432

2.6

1.6 0

1.7

3.3

1.6

1.8

1.6

1.7

1.6

a

TN1

5

ANTENNA

AM

75

FM COAXIAL

SDCEDI

CLK

DO

CL019

JL001

100

R1501

C1516

0.1

C1515

470 10V

0.1C1509

2.6

118

119

120

TST3

VDDI

1

3

VSS

XRST

EXTIN

LRCKI3

VDDI

BCKI3

PLOCK

VSS

1

MCLK1

VDDI

VSS

MCLK2

MS

SCKOUT

LRCKI1

VDDE

BCKI1

SDI1

LRCK0

BCK0

VSS

KFSI0

SD01

SD02

SD03

SD04

SPDIF

LRCKI2

BCKI2

SDI2

VSS

HACN

3132333435363738394041424344454647484950515253545556575859

1.4

3.2

100R1508

o

GND

R1516

GP11

HDIN

1

L_CH

VCC

R_CH

123456789

C1019

0.1

CL018

CL017

FB1502

0uH

RB1506

C1514

0.1

10k

2.7

3.2

0.2

112

113

114

115

116

117

A0PMSDI3

SDI4

SYNC

TST2

HCLK

HDOUT

HCS

GP12

GP13

GP14

3.2

3.3

C1504

0.1

100R1531

y

5

0.2

110

0.200

109

VSS

RB1501

107

108

IC1501

AUDIO DSP

IC1501

CXD9718BQ

GP15

CE0

3.3

3.2

100

3.300

106

D1D0A2A1VSS

CS0

3.2

WEO

100

111

VDDI

2.6

u

3.302.600

104

105

VDDE

VMDI

3.3

103

102

VSS

3.3

0

100

RB1502

C1513

0.1

100

101

VSS

D5D4D3D2VDDE

VMDO

PAGE2

CL016

Q

VSS

PAGE1

C1505

0.1

1

PAGE0

63

64 65 66

67 68 69

70 71 72 73

9

74

75

76

77

78

79

80

81

82

6

DIGITAL

BOARD

(4/5)

(Page 23)

7

DIGITAL BOARD

(5/5)

(Page 24)

2

8

2

9

TEL 13942296513 QQ 376315150 892498299

9

32 31 30 29 28 27

VSS

VDD

VSS

D11

D10

13 14 15 16 17 18 19

3.3

0.1

0

432

1.5 0

1

m

4

D0D1D2D3VDD

D9

D8

0.1

3.3

C1519

C1520

0.1

2

SRAM

No mark:FM

8

4

9

0.2

23

26 25 24

A6A0A1

A2

GNDGND

A11

A10

WE

A8

A7

22

20 21

0.2

0.1

9

8

IC1502

2

+9V REG

00003.30000

37 36

35 34 33

D4D5D6

D7

BLL

BHL

IC1502

IS61WV6416BLL-12TLI

D15

D14

D13

CS

8101112

3.2

0.1

5

567

GNDY

S

ST

8

VCC

IC1503

TC7WH157FU(TE12R)

IC1503

SELECTOR

D12

0.1

Y

B

A

A13

0.3

1

3

o

1

C1913

0.47

0.2

44 43 42 41 40 39 38

A5

A9

0.2

1

RB1503

100

RB1508

100

RB1507

100

RB1500

100

c

9

IC1902

0.2

3.2

OEA7A6

A12

A15

A14

34567 9

1

2

0.2

0.3

5

100R1514

R1510

1.6

100

C1502

0.1

3.3

8

IC1902

TA7809S

16.3 9

O

I

3

G

6

0.1C1508

R1555

220

.

3

2

R1557

220

C1914

47

16V

100

RB1504

0

0.2

919293949596979899

VSS

BOOT

Q

TST1

1.3

BST

MOD1

3.2

6

MOD0

3.3

A8A7A6A5A4A3D7D6VDDI

EXLOCK

2.6

D8/GP0

D9/GP1

D10/GP2

D11/GP3

D12/GP4

D13/GP5

D14/GP6

D15/GP7

VDDI

60

C1506

XTRST

VDDE

GP10

0.1

3.3

90

3

TDI

TCK

TMS

TD0

A10

A11

A12

A9

VSS

VDDI

GP8

GP9

A13

A14

A15

A16

A17

6162636465666768697071727374757677787980818283848586878889

VSS

220R1541

10kR1574

7

10kR1573

3.3

10kR1572

3.3

10kR1571

10kR1570

3.3

0.2

3.3

0.1

2.6

C1507

0.1

0 0

0.2

C1525

470

10V

3

STR-K995

2121

STR-K995

4-8. SCHEMATIC DIAGRAM – DIGITAL BOARD (3/5) –

• See page 42, 43 for IC Block Diagrams.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

7

2

DIGITAL BOARD

(1/5)

(Page 20)

6

3

87 8884 908983 86 9185

A

Q

3

DIGITAL BOARD (3/5)

B

TEL 13942296513 QQ 376315150 892498299

C

R1401

D

100

E

IC1401

T

E

L

1

AD CONVERTER

IC B/D

3

9

4

SYSCLK

2

C1403

10

50V

2

DOUT

9

BCK

6

F

C1404

1.6

3.3

1.4

DGND

BYPASS

R1409

IO

3.2

C1002

0

0.47

DOUT

FSYNC

7

1.7

10987654321

LRCK BCK

C1483

680p

C1481

330p

G

H

0.1

47

16V

FB1405

C1001

470

10V

0uH

SCK

VDD

AGND

PDWN

C1409

3.2

IC1001

TA7805S

5

3 1

0.1

0.01

+5V REG

IC1001

G

2

20 19 18 17 16 15 14 13 12 11

OSR

FMT0

FMT1

MODE0

MODE1

IC1401

PCM1803DBR

LIN

RIN

V REF 1

V REF 2

VCC

C1401

2.6

0.1

C1408

50V10C1407

4.9

0.1

C1405

5

C1402

50V10C1406

2.6

CNS501

B TO B

15P

15

C LINK L

14

GND

13

C LINK R

12

T.L OUT

11

GND

10

T.R OUT

9

F

MAIN

BOARD

I

(1/4)

CNP501

(Page 26)

L IN

GND

R IN

R OUT

L OUT

SW OUT

MAIN AGND

C OUT

8

7

6

CL040

5

+7V

4

3

CL041

2

1

0.01C1415

0.01

C1414

470R1411

470R1410

J

K

w

.

x

i

1

LRCK

5

R1483

6.8k

C1448

10

50V

R1486

1k

C1487 2200p

C1547 2200p

a

5

C1450

0.1

C1455

10

50V

FB1452

FB1453

1

3

1SS367-T3SONY

D1004

1SS367-T3SONY

0.1

5

0.1

6

0.1

7

0R1484

8

IC1403

NJM4565M(TE2)

R1446

1k

o

0uH

C1457

C1454

0.1

C1004

0.1

D1003

FR_OUT

IC1403

AMP

C1438

10

50V

1

R1474

10k

C1494

0.1

10

50V

C1005

4

3

2

1

0.1

-7 0 0 0

y

R1469

100

3.3

2.3

1.6

3.3

1.3

37

38

39

40

41

42

43

44

45

46

47

48

R1444

6.8k

R1445

C1442

330p

FL_OUT

0

5

3.3

RST(A_LOW)

SCKI

SCKO

BCK

LRCK

TEST

VDD

DGND

DATA1

DATA2

DATA3

ZEROA

0

3.300

3233343536

ML

MC

MDI

MDO

ZERO7(1602_NC)

ZERO8(1602_NC)

DATA4(1602_NC)

IC1452

AUDIO CODEC

IC B/D

IC1452

PCM1602APT

Q

ZERO1

ZERO3

ZERO4

ZERO5

ZERO2

R1642

R1641 10k R1645 10k

R1407

ZERO6NCNC

54321

C1460

10k

100

0.1

SW_OUT

IC1404

C1474

0.1 R1473

8.2k

C1468

50V

R1476

1k

10

0.1

2.6

2.6 7

R1436

1k

1

5

6

7

8

NJM4565M(TE2)

C1441

680p

u

C1473

C1566 2200p

C1569 2200p

0.1

5

28293031

ND

Q

9876

2.6

6.8k

R1492

AMP

IC1404

C1428

27 26 25

VCC1

AGND1

VOUT8(1602_NC)

VOUT7(1602_NC)

VOUT6

VOUT5

10 11 12

2.6

C1461

6.8kR1491

10

50V

6

5

0.1

8.2kR1470

VCC2

VOUT4

2.6

6.8kR1495

4

3

2

1

AGND2

AGND3

AGND4

AGND6

AGND5

VOUT1

VOUT2

VOUT3

C1471

C_OUT

VCC3

VCC4

VCC5

VCOM

0.1

-7 0 0 0

3

24

23

22

21

20

19

18

17

16

15

14

13

C1472

0.1

R1434

C1567 2200p

C1568 2200p

3

6.8kR1494

6.8k

R1435

C1433

330p

5

2.6

7

0

6.8kR1493

C1491

50V

C1475

0.1

R1643

10k

R1644

10k

C1432

680p

5

DIGITAL

BOARD

(2/5)

9

8

2

8

G

MAIN

BOARD

(1/4)

CN500

(Page 26)

2

9

TEL 13942296513 QQ 376315150 892498299

9

0

R1424

6.8k

R1425

0

C1423

330p

m

4

C1422

680p

No mark:FM

8

9

CNS502

B TO B

CL037

CL036

CL039

11P

2

1

NC

2

3

NC

VOL_IC_CLK

4

vOL_IC_DATA_LAT

5

vAVS_CTRL

6

7

SBR_OUT

SBL_OUT

8

SR_OUT

9

-7V

10

SL_OUT

11

37

38

41

42

43

44

45

46

47

48

49

50

51

52

4

53

54

56

57

58

59

60

61

62

8

(Page 21)

DIGITAL

BOARD

(5/5)

(Page 24)

100R1556

0JR1008

1SS367-T3SONY

R1530

100k

1

2

5

D1501

1

SR_OUT

9

D1502

D1503

D1504

1SS367-T3SONY

5

8

10

3

6

SL_OUT

IC1405

5

6

7

8

NJM4565M(TE2)

c

AMP

IC1405

4

3

2

1

C1458

10

50V

R1466

1k

o

-7

0.1

C1462

680p

C1463

330p

.

R1463

6.8k

C1418

10

50V

R1426

1k

0.1

0.1 7

0R1464

STR-K995

2222

4-9. SCHEMATIC DIAGRAM – DIGITAL BOARD (4/5) –

STR-K995

Q

1 2 3 4 5 6 7 8 9 10 11 12

Q

3

7

6

3

1

A

B

CNP506

9P

TEL 13942296513 QQ 376315150 892498299

63

64

C

D

T

DIGITAL

BOARD

(2/5)

(Page 21)

DIGITAL

BOARD

E

(1/5)

(Page 20)

6

65

66

4

3

18

L

DIGITAL BOARD (4/5)

1

3

9

4

2

9

6

5

SUB_T

9

CL022

5

FRONT_B_RY

B'ABLE_RY

7

8

D1109

D1108

MA111-TX

1

MAIN BOARD

(4/4)

CNP913

U E C B

(Page 29)

FRONT-RY

C/REAR/SB-RY

HP_CTRL

HP_RY

WOOFER_RY

2

3

4

5

6

D1111

3

MA111-TX

D1107

MA111-TX

PROTECTOR

1

CL021

D1110

MA111-TX

5

GND

1

CL024

0

DCDC BOARD

(Page 33)

+6.5V

2

CL023

CN4103

GND

3

CNP512

Q

3P

8

IC1906 IC1901

+5V REG

IC1906

IC SI-3050KM-TL

VC

VIN

GND

VOUT

SENSE

1

2345

3.3

6.3

Q

C1919

22

35V

5

3

C1911

0.1

5

C1910

100

10V

R1637

7

0

6

12345

3

C1985

0.1

+3.3V REG

IC1901

SI-3004KWF

3.3

1

C1906

470 10V

9

7.6

5

C1905

0.1

2.6

1

CNP505

7P

2

STANDBY

BOARD

CNP903

(Page 33)

+R2 (+15V)

1

CL025

5

0

STOP

2

C1071 0.1

4

STBY GND

+9V(STBY)

3

4

PW RY

5

CL012

8

9

MAIN BOARD

CNP912

(Page 29)

+R4

R4 GND

6

7

BA50BC0FP-E2

7.6

1

C1031

0.47

9

(4/4)

W1000

IC1031

+5V REG

IC1031

3

VCC

OUT

GND

2

C1032

470 10V

2

8

D1001

1SR154-400TE-25

5

9

4

2

9

IC1904

+3.3V REG

IC1904

BA33BC0FP-E2

6.8 3.3

VCC

1

C1021

0.47

2

8

GND

3

OUT

2

C1022

470 10V

9

TEL 13942296513 QQ 376315150 892498299

9

E

F

G

C1908

470

10V

FB1308

0uH

No mark:FM

92 93 94 95 96 97 98 99 100 101 102 103 104 105 106

9

DIGITAL

BOARD

(5/5)

(Page 24)

STR-K995

w

.

x

i

a

o

y

u

1

6

3

2323

.

c

o

m

Sony STR-K995 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

TABLE OF CONTENTS

4-1. BLOCK DIAGRAM – MAIN SECTION –

4-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION –

4-3. BLOCK DIAGRAM – HDMI SECTION –

4-4. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE A) –

4-5. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE B) –

4-6. SCHEMATIC DIAGRAM – DIGITAL BOARD (1/5) –

4-7. SCHEMATIC DIAGRAM – DIGITAL BOARD (2/5) –

4-8. SCHEMATIC DIAGRAM – DIGITAL BOARD (3/5) –

4-9. SCHEMATIC DIAGRAM – DIGITAL BOARD (4/5) –