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STR-DB840/DB940
SERVICE MANUAL
US Model Canadian Model AEP Model UK Model
STR-DB840/DB940
E Model Australian Model Chinese Model
STR-DB940
Photo: STR-DB940 (AEP and UK models) (Black type)
Manufactured under license from Dolby laboratories. "Dolby", "AC3", "Pro Logic" and the double-D symbol ; are trademarks of Dolby Laboratories. Manufactured under license from Digital Theater Systems, Inc. US Pat. No. 5,451,942 and other worldwide patents issued and pending. "DTS" an d "DTS Digital Surround" are trademarks of Digital Theater Systems, Inc.
SPECIFICATIONS
Continued on next page
FM STEREO/FM-AM RECEIVER
· Abbreviation AU : Australian model CA : Canadian model CED : AEP and UK models
CN : Chinese model SP : E model U : US model
2
SAFETY CHECK-OUT 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 manufacturers' 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 have 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 AC range are suitable. (See Fig. A)
To Exposed Metal Parts on Set
MODEL IDENTIFICATION
Rear View
Part No.
Model DB940: US model DB940: Canadian model E model Chinese model Australian model DB940: AEP and UK models DB840: US model DB840: AEP and UK models DB840: Canadian model
Part No. 4-227-151-0s 4-227-151-1s 4-227-151-2s 4-227-151-3s 4-227-151-4s 4-227-151-5s 4-227-151-7s 4-227-151-8s 4-227-151-9s
0.15 µF
1.5 k
AC voltmeter (0.75 V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
Notes on chip component replacement · Never reuse a disconnected chip component. · Notice that the minus side of a tantalum capacitor may be damaged by heat. Flexible Circuit Board Repairing · Keep the temperature of the soldering iron around 270 °C during repairing. · Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). · Be careful not to apply force on the conductor when soldering or unsoldering.
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.
ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
3
TABLE OF CONTENTS 1. 2. 3. 4. GENERAL ................................................................... 5 DISASSEMBLY ......................................................... 7 TEST MODE .............................................................. 10 DIAGRAMS
11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 48
4-1. Block Diagram MAIN Section (1/2) ........................ 4-2. Block Diagram MAIN Section (2/2) ........................ 4-3. Block Diagram DISPLAY/POWER SUPPLY Section ...................... 4-4. Note for Printed Wiring Boards and Schematic Diagrams ...................................................... 4-5. Schematic Diagram DIGITAL Board (1/3) .............. 4-6. Schematic Diagram DIGITAL Board (2/3) .............. 4-7. Schematic Diagram DIGITAL Board (3/3) .............. 4-8. Printed Wiring Board DIGITAL Board (Component Side) ......................... 4-9. Printed Wiring Board DIGITAL Board (Conductor Side) ........................... 4-10. Printed Wiring Boards VIDEO/JOINT (1) (Q) Boards (DB840) .................. 4-11. Schematic Diagram VIDEO/JOINT (1) (Q) Boards (DB840) .................. 4-12. Printed Wiring Boards OSD/JOINT (2) (Q) Boards (DB940) ...................... 4-13. Schematic Diagram OSD/JOINT (2) (Q) Boards (DB940) ...................... 4-14. Printed Wiring Board AU SW Board ....................... 4-15. Schematic Diagram AU SW Board .......................... 4-16. Printed Wiring Board S-VIDEO Board .................... 4-17. Schematic Diagram S-VIDEO Board ....................... 4-18. Printed Wiring Board DISPLAY Board .................... 4-19. Schematic Diagram DISPLAY Board ...................... 4-20. Printed Wiring Board MAIN Board ......................... 4-21. Schematic Diagram MAIN Board (1/3) ................... 4-22. Schematic Diagram MAIN Board (2/3) ................... 4-23. Schematic Diagram MAIN Board (3/3) ................... 4-24. Printed Wiring Boards H.P/MUTING/POWER/SW/ VOL/VIDEO 3 Boards ................................................. 4-25. Schematic Diagram H.P/MUTING/POWER/SW/ VOL/VIDEO 3 Boards ................................................. 4-26. Printed Wiring Boards 5.1 IN/BIAS (C)/BIAS (L)/ BIAS (LS)/BIAS (R)/BIAS (RS) Boards .................... 4-27. Schematic Diagram 5.1 IN/BIAS (C)/BIAS (L)/ BIAS (LS)/BIAS (R)/BIAS (RS) Boards .................... 4-28. Printed Wiring Boards DC (1)/DC (2) Boards .......... 4-29. Schematic Diagram DC (1)/DC (2) Boards .............. 4-30. Printed Wiring Boards AC/SP Boards ....................... 4-31. Schematic Diagram AC/SP Boards .......................... 4-32. IC Pin Function Description ...........................................
5. 6.
EXPLODED VIEWS ................................................ 59 ELECTRICAL PARTS LIST ............................... 63
4
SECTION 1 GENERAL
FRONT PANEL PARTS DESCRIPTION
1
2
MULTI CHANNEL DECODING
·
·
4
MASTER VOLUME · 5 · · · · ·
6
·
·
?/1
DIMMER
·
·
3
7
· · ·
· · ·
2
8
· · ·
· · ·
DISPLAY
BASS BOOST
1
9
·
·
·
MODE
·
SPEAKERS
OFF A+B · A
FM / AM
SHIFT
PRESET TUNING
+
A
CINEMA STUDIO EX. B
0
10
C
A.F.D.
2 CH
MODE
+
ANLG DIRECT
5.1CH INPUT
·
·
·
B
DOOR OPEN
FUNCTION
MEMORY
+
EQUALIZER
SET UP SUR
LEVEL
+
PHONES
VIDEO 3 INPUT
FM MODE
INPUT MODE
NAME
EQ
ENTER
S-VIDEO
VIDEO
L AUDIO R
5
1 I/1 switch 2 MASTER VOLUME control 3 MUTING button 4 FUNCTION control MODE button 5 INPUT MODE button
4
6 7
8
9 q;
qa
qs qd
MULTI CHANNEL DECODING
·
·
3
·
4
MASTER VOLUME · 5 · · · · ·
6
·
·
?/1
DIMMER
· · ·
2
· · ·
DISPLAY
BASS BOOST
1
·
SPEAKERS
OFF A+B · A
FM / AM
SHIFT
PRESET TUNING
+
A
CINEMA STUDIO EX. B
0
10
C
A.F.D.
2 CH
MODE
+
ANLG DIRECT
5.1CH INPUT
·
·
·
B
DOOR OPEN
FUNCTION
MUTING
MEMORY
+
EQUALIZER
SET UP SUR
LEVEL
+
PHONES
VIDEO 3 INPUT
FM MODE
INPUT MODE
NAME
EQ
ENTER
MODE
S-VIDEO
VIDEO
L AUDIO R
wj
6 DIMMER button 7 DISPLAY button 8 FM/AM button SHIFT button PRESET TUNING +/ buttons 9 CINEMA STUDIO EX. A~C buttons q; MULTI CHANNEL DECODING indicator qa A.F.D. button/indicator 2CH button/indicator MODE +/ buttons/indicator qs ANLG DIRECT button qd 5.1CH INPUT button
wh wg wfwd wa ql qj qh qg ws w; qk
qf DOOR OPEN button qg ENTER button qh Cursor buttons () qj Jog dial qk LEVEL button ql EQ button w; SUR button wa SET UP button ws NAME button wd EQUALIZER button wf TUNING/PTY SELECT +/ buttons (AEP and UK models) TUNING +/ buttons (Except AEP and UK models)
qf
wg RDS EON button (AEP and UK models) RDS PTY button (AEP and UK models) TEST TONE button (Except AEP and UK models) SLEEP button (Except AEP and UK models) wh MEMORY button FM MODE button wj SPEAKERS selector PHONES jack
·
·
·
·
·
MUTING
3
·
7 9
· · ·
8
· · ·
·
·
5
BACK PANEL PARTS DESCRIPTION
1
2
3
4
5
6
L
ANTENNA
AM CENTER
MD/DAT OPTICAL OUT
MD/DAT OPTICAL IN
TV/SAT OPTICAL IN
DVD/LD OPTICAL IN
DVD/LD COAXIAL IN
B
FRONT
A
REAR
CENTER
FRONT
REAR
SUB WOOFER CENTER
L
+
R L R L R L R
R
FRONT REAR
5.1CH INPUT
SUB WOOFER
DIGITAL
CTRL S STATUS IN CTRL S OUT CTRL S OUT
PRE OUT
U
FM 75 COAXIAL SIGNAL GND
CTRL S IN
SPEAKERS IMPEDANCE USE 4 16
4
8
IMPEDANCE SELECTOR
U
MONITOR
IN IN OUT IN
S-VIDEO OUT VIDEO
S-VIDEO IN VIDEO
S-VIDEO IN VIDEO
OUT VIDEO
IN VIDEO
S-VIDEO OUT VIDEO
S-VIDEO IN VIDEO
AC OUTLET
OUT
IN
AUDIO IN
AUDIO IN
AUDIO OUT
AUDIO IN
AUDIO OUT
AUDIO IN
CONTROL A1
L
L
R
R
PHONO
CD
MD/DAT
TAPE
TV/SAT DVD/LD
VIDEO 2
VIDEO 1
2ND AUDIO OUT
ql
qk qj qh
qg qf qd qs
qa
q;
9
qa VIDEO 1 jack qs VIDEO 2 jack qd DVD/LD jack qf TV/SAT jack qg TAPE jack (STR-DB940)
8
7
1 ANTENNA terminal 2 5.1CH INPUT jack 3 DIGITAL jack 4 SPEAKERS terminal 5 PRE OUT jack 6 IMPEDANCE SELECTOR switch 7 AC OUTLET connector 8 AC power cord 9 CONTROL A1II jack q; 2ND AUDIO OUT jack (STR-DB940)
qh MD/DAT jack (STR-DB940) MD/TAPE jack (STR-DB840) qj CD jack qk PHONO jack ql MONITOR jack
6
SECTION 2 DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
CASE
1 two screws (flat head) 1 two screws (flat head)
3 case ass'y
1 two screws (flat head)
2
2
1 two screws (flat head)
5.1 IN BOARD, AU SW BOARD, TUNER
5 5.1 IN board, AU SW board 2 connector (CNP10)
1 wire (flat type) (15 core) (CN1) 4 tuner (TM301)
3 four screws (BV3 × 8)
7
VIDEO/OSD/JOINT (1) (Q)/JOINT (2) (Q)/S-VIDEO/ DIGITAL BOARDS
1 wire (flat type) (21 core) (CN55) 4 DIGITAL board 8 VIDEO board (DB840)/OSD board (DB940), JOINT (1) (Q) board (DB840)/ JOINT (2) (Q) board (DB940) S-VIDEO board
3 two screws (BVTP3 × 8) 1 wire (flat type) (15 core) (CN51)
5 bracket (digital)
6 connector (CNS213)
2 three screws (BV3 × 8) 7 seven screws (BV3 × 8)
HEAT SINK
5 heat sink 4 two screws (BVTP3 × 8) 4 two screws (BVTP3 × 8)
3 two screws (BVTP3 × 6)
1 five connectors (CNP511, 611, 561, 711, 761)
2 ten screws
8
MAIN BOARD
2 connector (CNS305) 4 three screws (BVTP3 × 8)
5 MAIN board
3 six screws (BV3 × 8)
1 wire (flat type) (23 core) (CNS111)
9
SECTION 3 TEST MODE
Fluorescent Indicator Tube Test Mode
All fluorescent segments are tested. When this test is activated, all segments turn on at the same time, then each segment turns on one after another. Procedure: 1. While depressing, the [A.F.D.] and the [DIMMER] buttons simultaneously, press the power `/1 button to turn on the main power. 2. All segments turn on at the same time, then each segment turns on press the [A.F.D.] button.
AM Channel Step 9 kHz/10 kHz Selection Mode (US and Canadian Models)
Either the 9 kHz step or 10 kHz step can be selected for the AM channel step. Procedure: 1. Set the FUNCTION to AM. Turn off the main power. 2. While depressing the [TUNING -] button or the [PRESET TUNING +] button, press the power `/1 button to turn on the main power. 3. Either the message AM 9kHz Step or AM 10kHz Step appears. Select the desired step.
Factory Set Mode
All preset contents are reset to the default setting. Procedure: 1. While depressing the [SET UP], and the [DIMMER] buttons simultaneously, press the power `/1 button to turn on the main power. The message Factry Set appears and the present contents are reset to the default values.
DSP Test Mode
It tests whether the DSP works correctly or not. When the DSP test is activated, the test data is output from the DSP (IC1401: CXD2712R) of the DIGITAL board and is written in the RAM (IC1402: IDT71V016S). When the test data is read from the RAM by the DSP, the data output must be equivalent to the original data. If they disagree, an error is triggered. Errors can be caused by the broken data line or defective soldering. Procedure: 1. While pressing the [MODE +] and [DIMMER] buttons, press the `/1 button to enter the DSP test mode. 2. The message DSP TEST MODE appears. When an error occurs, the message DSP2 ERROR is displayed. When there is no error, the message DSP2 NO ERROR appears and the 1 kHz signal is output to all channels. 3. Use the [MUTING] button, when selecting the SINE WAVE, THROUGH, or IMPLUSE mode.
All Clear Mode
All preset contents are cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair. Procedure: 1. While depressing the [SET UP] button simultaneously, press the power `/1 button to turn on the main power. The machine enters the DEMO mode. DEMO mode: Wait a while, then the demonstration starts. If the power `/1 button is pressed often the demonstration has started, the power is turned off, and the demonstration resumes if the power `/1 button is pressed again. ALL CLEAR mode; Press the [A.F.D.], [MODE +], and `/1 buttons.
Version Mode
When this mode is used, the microprocessor version number is displayed. Procedure: 1. Press the `/1 button while pressing the [MUTING], and [DIMMER] buttons to turn on the power. The microprocessor version number appears as follows.
Sound Field Clear Mode
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 [MODE +] button, press the power `/1 button to turn on the main power. The message S.F Initialize appears and initialization is performed.
10
STR-DB840/DB940 SECTION 4 DIAGRAMS
4-1. BLOCK DIAGRAM MAIN Section (1/2)
SELECTOR IC330 TM301 TUNER UNIT TM301 (ANTENNA) FM 75 AM FM AM 9 FM DET OUT 6 FM IF OUT
DO TUNED STEREO MUTING
(DB940)
IC309 COM 26 COM 27 COM 25
J306 L R CH Q301 RY301 RELAY DRIVE SELECTOR IC1502 SELECTOR IC303 27 26 25 (DB840) IC1504 IC1504 AUDIO CODEC IC1503 30 LIN+ 29 LIN9 SDTO 39 MCLK1 4 BCLK 5 LRCK 2 SDTI 1 3 SDTI 2 4 SDTI 3
S MUTE CDTI CCLK CS PD DFS
26 27 25 23
TUNER CD MD TAPE
S DATA
R
2ND AUDIO OUT
15 14 16
S CLK S LAT
E
(Page 12) (AEP, UK)
FM DET OUT RSD SIGNAL
AUDIO SELECT IC301 J305 L OUT 10 R OUT 12
DATA CLOCK CE
IC304
19 2CH L 18 CDL FRONT L REAR L 20 S.1-L 23 S.1-LS 26 S.1-C 3 S.1-C J307 21 L W OUT 4 27 C LS OUT 22 2 W 24 LS MUTE Q1503 C OUT 25 L OUT 17
IC1510 L MUTE Q1502 IC1508 C MUTE Q1505 IC1508 W MUTE Q1506 IC1509 SL
3 R CH 4 2 8 7 6 11 10 CONTROL
DI CLK CE
TV/SAT DVD/LD
INPUT INPUT OUTPUT
L L L J304
5.1CH INPUT CENTER SUB WOOFER L OUT1 27 L OUT3 23 R OUT3 24 L OUT2 25 3 IC1507 7 5 5 7 IC1505 1 IC1505 5 7 IC1506
4 14 15 13 2 3 1
DO TUNED STEREO MUTING S DATA S CLK S LAT
VIDEO2 INPUT 12 OUTPUT VIDEO1 INPUT L L L
27 26 25 CONTROL
DI CLK CE
J301 PHONO IN CD IN (DB840) MD/TAPE (DB940) DAT/MD RECOUT IN TAPE RECOUT (DB940) DVD/LD IN TV/SAT IN DAT/MD IN MD/DAT OUT COAX (DB940) J810-1 VIDEO 3 INPUT AUDIO (DB840) MONITOR J201 VIDEO OUT VIDEO IN VIDEO 1 VIDEO OUT VIDEO IN VIDEO 2 VIDEO OUT TV/SAT DVD/LD VIDEO IN VIDEO IN J203 J253-1 Y TV/SAT S-VIDEO IN C 5 LD 13 V1 I J202 SW2 10 11 V2 OUT 3 TV 5 LD SW5 2 Y SWITCH IC252 3 TV V1 0 SW1 SW2 SW3 SW4 SW5 M0 15 14 10 4 6 2 1 SW3 4 SW4 6 15 V1 OUT 9 V2 IN SW1 14 L VIDEO SELECT IC201 DVD/LD IN L IC001 IR LINK DET IC002 IR LINK DET IC003 IR LINK DET IC004 IR LINK DET J1001 L L J303 L L J302 IN L
EQ AMP IC302
17
14 12
15 14 16
S DATA S CLK S LAT
15 14 16
S DATA S CLK S LAT
DIGITAL AUDIO I/F RECEIVER IC1101 DATA 16 CK OUT 13 5 7 4 SELECT 6 SWITCH 10 IC1005 3 11 4 12 A 14 B 2 A B 3 D IN BCK 14 LRCK 15 36 DI 12.288M 22 38 CLK 37 CE ERROR 34 DO 35 AUTO 32
XMODE XSTATE
DOLBY DIGITAL AUDIO DECODER IC1301 IC1403 7 AU 24 6 DATA0 IC1403 AU 23 4 85 SDIA1 DATA1 5 3 2 AU 84 SDIA0 DATA2 22 IC1403 83 SDBCK0 82 SDWCK0
IC1403 13 IC1403 11
AUDIO DSP IC1401 113 114 115 116 BCK0 SOA 2 BCK1 SOB 3 LRCK0 SOC 4 LRCK1
B
(Page 13)
15 14 16 DATA CLK LAT
S DATA S CLK S LAT
117 SIA 118 SIB 119 SIC CLKI 99 53 i ED16 31 69 CLKO 100 76 i EA0 15 94 74 XWE 70 XOE D0 7 25 i 31 39 i 45 15 HA0
XHDWR XHDCS XRST
3 43 42 41 17 11
X1401 10MHz
SRAM IC1402
IC11404 3 5 7
IC1404 6 2 1 8 XI
· SIGNAL PATH : FM
SOD 5 HRDY 13
9 IC007
IC1404 SO 83
SCK SI CS
: PHONO : CD : DVD
Q1202
X3501 12.288MHz
D1101
48
17
Q1204
69 68 66
62 10
IC
9 14 26
IC1202 IC1202 Q1201
Q1507 MUTE DRIVE
8
DO TUNED STEREO
TMUTE
S DATA S CLK S LAT
S DATA S CLK S LAT
D1202
D0 7
1 M OUT 13 V1 IN
VCC 16 VEE 8
+5V
A B
Q1203
11 25
HA0
9 27 15
HRDY SOD
5V
58 59 60 84 56 57 55 108 107 47 48 46 112 110 111
DATA AUTO STOP STEREO TUNER MUTE DIG IN A DIG IN B DATA CLOCK LATCH
109 118
XMODE XSTATE
116 113 114 106
ANALOG/DIG AUTO DO ERROR
85
S MUTE
6
D SIG
1 2 4
SCCLK SI CS
5
IC
SO
XHDWR
XHDCS XRST
D201
VIDEO 77 (SW1) VIDEO 76 (SW2) VIDEO 75 (SW3) VIDEO 72 (SW4) D202
EV DATA EV CLK EV STB
S MUTE CDTI CCLK CS PD 96kHZ
3 24 17 HD0 HD7
13 16 26
31 30 29 28 32 35 AC MUTE PROTECT RY HP RY FRONT A RY FRONT B RY CENTER RY WOOFER RY REAR RY PRE 82 66 104 99 100 101 103 102 98
AC MUTE PROTECTOR HP RY SP/A RY SP/B RY RY CENTER RY WOOFER REAR SP RY PRE RY U DATA U CLOCK U MREQ D1201 D1212 U SREQ U REST RESET RY POWER STOP SOT0 SIN1 MD2 MD0
DI CL CE
C
(Page 13)
SYSTEM CONTROLLER IC1201 (1/2) Y
DISP DATA 50 DISP CLK 52 DISP MR 49 SREQ 51 RESET 90 RY POWER 105 STOP 69 SOTO SINO MD2 MD0 10 9 87 89
J253-2 Y DVD/LD S-VIDEO IN C
C J252-2 VIDEO 1 D204 S-VIDEO OUT XI 93 XO 92
D
(Page 13)
J252-1 VIDEO 1
Y
C SWITCH IC251 3 TV 5 LD 13 V1 I V1 0 SW5 SW1 SW2 SW3 SW4 M0 15 2 14 10 4 6 1
D205
S-VIDEO IN C
Y
J251 MONITOR S-VIDEO OUT
X1201 16MHz
C
05
11
11
STR-DB840/DB940
4-2.
BLOCK DIAGRAM MAIN Section (2/2)
(DB940) VIDEO SELECT IC2005 J810-2 VIDEO 3 INPUT VIDEO J2003 TV/SAT DVD/LD VIDEO IN VIDEO IN VIDEO OUT VIDEO 2 VIDEO IN VIDEO OUT VIDEO 1 VIDEO IN Y J809 VIDEO 3 INPUT S-VIDEO C Y J253-1 TV/SAT S-VIDEO IN C Y J253-2 DVD/LD S-VIDEO IN C 7 V3 3 TV J252-1 VIDEO 1 S-VIDEO IN C 13 V1 IN Y 5 LD V1 OUT 15 Y SW1 14 SW2 10 SW3 4 SW4 6 M OUT 1 DISPLAY CONTROLLER IC102 (2/2) VIDEO BUFFER IC2002 OSD DRIVER IC2004 (AEP, UK) VBLK SCLK SIN CS 6 22 23 24 56 26 28 100 OSD VBLK OSD CLK OSD DOUT OSD LAT J251 MONITOR S-VIDEO OUT C C SWITCH IC251 13 V1 IN 5 LD 7 V3 3 TV V1 OUT 15 Y SW1 14 SW2 10 SW3 4 SW4 6 M OUT 1 J252-2 VIDEO 1 S-VIDEO OUT C Y SWITCH IC252 13 V1 IN3 M OUT 1 J2002 9 V2 IN SW5 2 3 5 TV LD 7 V3 VCC 16 VEE 8 +5V 5V 77 VIDEO (SW1) 76 VIDEO (SW2) 75 VIDEO (SW3) 72 VIDEO (SW4) D2003 D2004 SYSTEM CONTROLLER IC1201 (2/2)
SW1 14 SW2 10 SW3 SW4 4 6
11 V2 OUT
15 V1 OUT
6 8 7
C OUT Y OUT V OUT
C IN Y IN V IN
4 2 3
26 C OUT 27 Y OUT 25 V OUT
J2001 MONITOR VIDEO OUT
Q2001, 2002
RDS SIGNAL INPUT 46 RDS DECODER IC1
RDS SIGNAL
YIN 1 VIN 3 (US,CND)
11 10 9 8
E
IC2006 SYNC D2002 IN 1 2 HSYNC VSYNC 4 55 OSD VSYNC P/N 57 IN 1 2 HSYNC VSYNC 4 X1 4.332MHz XI 13 XO 14 RDS CLOCK 53 16 RCLK MUX 4 RDS DATA 54 2 RDAT FM DET OUT (Page 11)
8 FI2003 LPF
EXS
CIN 2
HSYNC VSYNC TEST
X2002 14MHz (EXCEPT US, CND)
13
CLOCK IC2001 FI2001
12 1 2
EXHSYN 12
5 4 1 2
6
10 11 21
3 9 10 8
IC2008 SYNC D2005
LPF
CNP253 (FOR CHECK)
X2001 17.34MHz
CLOCK IC2001
COMPARATOR IC2003
05
12
12
STR-DB840/DB940
4-3. BLOCK DIAGRAM DISPLAY/POWER SUPPLY Section
POWER AMP (L) IC501 +B VOLUME RV401 L IC408 3 1 VOL CONT IC414 3 DATA 9 CLK 8 LAT 10 IN OUT 2 DATA CLK LAT B 13 VCC 14 VCC +VE 12 15 VEE 8 IN 1 MUT VE 11 POWER AMP (C/W) IC601 +B 13 VCC 14 VCC +VE 2 15 VEE 6 IN NF 5 Q604, Q605 BIAS BOOSTER Q607 CUR DET Q608 POWER PROTECTOR Q609,610 Q611 RELAY DRIVE Q645 RY601 R-CH JJ102 CENTER RY681 JJ101 SUB WOOFER L REAR R L Q704, Q705 BIAS BOOSTER Q707 CUR DET Q708, Q798 PROTECTOR Q547-549 POWER PROTECTOR Q709,710 RY701 RELAY DRIVE Q745 RY671 RELAY DRIVE Q671 +B F802 B SWITCH Q613 +24V IC1207 TUNER +5V 3 +15V 1 REG IC1208 RY POWER STOP RESET URESET USREQ UMREQ UCLOCK UDATA SOTO SIN1 MD2 MD0 IR LINK +5V D121, D136 140, 141 D147 157 D111 115 (DB940) +B IC106 SIRCS X11 7.82MHz 15 16 CA1 I 11 CA1 O 12 QQ11 CTL I/O D1209 DIGITAL +5V IC1203 CONT µCOM ETC IC1204 DISP µCOM+5.6V D1208 3 +5V 1 REG F2 F1 D806-809 F805 D802-805 F803 FRONT R-CH R +32V +32V REG D801 F801 15V Q801 IC404 +5V +15V IC405 PRE OUT 5V 3 5V 2 REG 3 15V 2 REG IC402 D811 D812 1 +5V 3 REG IC401 3 +15V 1 REG T901 BOOSTER Q606 NF 9 Q505 BIAS POWER PROTECTOR Q509,510 Q511 BOOSTER Q506 RELAY DRIVE Q601 RY602 TM501 L A R L RELAY DRIVE Q546 RELAY DRIVE Q596 RY501 B R CH R SPEAKERS FRONT
R CH
J701 PHONES
BOOSTER Q507
CUR DET Q508
C
IC409 (1/2) 3 IC409 (2/2) 5 7 1
VOL CONT IC415 3 IN OUT 2
· SIGNAL PATH : FM
RY502 TM701 C S (L) S (R) CENTER REAR
: CD
B
(Page 11)
W
B 14 IN OUT 15 DATA 9 DATA CLK 8 CLK LAT 10 LAT
1 MUT VE 3
S801 IMPEDANCE SELECTOR 4 8
SL
IC410 3 1
VOL CONT IC416 3 DATA 9 CLK 8 LAT 10 IN OUT 2 DATA CLK LAT +B
DATA CLK LAT
POWER AMP (SL) IC701 13 VCC 14 VCC +VE 12 15 VEE 8 IN 1 MUT VE 11 NF 9 BOOSTER Q706
RELAY DRIVE Q681
M
B
AC MUTE
MUTE DRIVE Q501, 503
PROTECTOR
C
(Page 11)
HP RY SP/A RY SP/B RY RY CENTER RY WOOFER REAR SP RY PRE RY
F804
SIRCS DET Q129,130 LED DRIVE IC11
3 +3.3V 1 REG 3 +5V 1 REG
XI
2 CARR OUT 33 SIRCS IN
(Page 11)
XO
D
RV101
RV102
1 7 9 15 20 29 LED DRIVER IC108 1 2 3 4 5 88 87 89 90
X101 16MHz 82 83
IC1205
RELAY DRIVE Q901
RY901
F901
LAT RESET 5 14
3 +6.2V 1 REG
EXCEPT US, Canadian F903
49 51 20 19
61 62 60 59 58
79 78
75 76
98
99
13
MBUS TV MBUS STA OUT MBUS VIDEO 1 MD0 MBUS DVD MD2 SIRCS IN FLASH DATA IN FLASH DATA OUT AD KEY1 UDATA UCLOCK UMREQ AD KEY2 USREQ
FUNCTION DOWN FUNCTION UP
JOG UP JOG DOWN
EQ SUR LEVEL NAME SETUP
XO
XI
POWER RY
LED DATA LED CLK LED CE LED CLR
LAT
URESET
RESET
D1211 +6.2 REG Q1205 T902 3 STOP 47 8 RESET 5 IC1206 6 D901-904
POWER KEY
AD KEY3
AD KEY4
AD KEY5
AD KEY6
8 (US, Canadian) J257 TV/SAT CTRL S STATUS IN J258 MONITOR CTRL S IN J255 VIDEO 1 CTRL S OUT J256 DVD/LD CTRL S OUT 05
MOTOR DRIVE
2
10 DOWN
95 96 93 94 18 BUFFER Q201, 202
38
39
40
41
43
44
MUTING
7
3
9 UP
7
64
65
66
21 24 25 22
12
67
63
ABUS A1 IN
SPEAKER A
SPEAKER B
IC105
ABUS OUT
5V CHECK
FL CLK FL LAT FL CLEAR FL DATA
DISPLAY CONTROLLER IC102 (1/2)
CNJ901 JW925 (US, Canadian)
RESET 77
RESET Q103
CNP901 AC IN FUNCTION FUNCTION FUNCTION FUNCTION FUNCTION FUNCTION KEY KEY KEY KEY KEY KEY S111 118 S121 128 S131 133, S151 153, S134, 135 141 145 161, 162 S163, 164 D123 MUTING SPEAKERS 30 31 32 28 I/1 (POWER) F2 IC101 REMOTE 1 CONTROL RECEIVER
1 6 13 IN1 IN3 4
Q104 I/O BUFFER Q102 F1 5V CHECK
D103 J204: DB840 J2004: DB940 CONTROL A1 II
11 1
2 7
CLK LAT CLR DIN
IC103 FL DRIVE
S102
S101
+5V
10 2 OUT1 2 CONTROL S I/O IC253
3
B+ (5V)
FL101 FLOURESCENT INDICATOR TUBE
13
13
4-4.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. f · : internal component. · 2 : nonflammable resistor. · C : panel designation. Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Note: Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce por tant le numéro spécifié.
· Circuit Boards Location
Note on Printed Wiring Board: · X : parts extracted from the component side. · Y : parts extracted from the conductor side. a : Through hole. · · b : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.) Caution: Pattern face side: (Conductor Side) Parts face side: (Component Side) Parts on the pattern face side seen from the pattern face are indicated. Parts on the parts face side seen from the parts face are indicated.
SP board
DC (2) board AC board
DC (1) board DIGITAL board DISPLAY board 5.1 IN board
· Indication of transistor
C Q B E These are omitted.
Q B C E These are omitted.
Q B C E These are omitted.
· Abbreviation AUS : Australian model CH : Chinese model CND : Canadian model
· U : B+ Line. · V : B Line. · Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM : Impossible to measure · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. · Circled numbers refer to waveforms. · Signal path. F : FM J : CD I : PHONO · Abbreviation AUS : Australian model CH : Chinese model CND : Canadian model
POWER board VIDEO 3 board SW board
AU SW board
MUTING board
BIAS (C) board BIAS (L) board BIAS (R) board BIAS (RS) board
S-VIDEO board
BIAS (LS) board
VIDEO board (DB840)/ OSD board (DB940)
H.P board JOINT (1) (Q) board (DB840)/ JOINT (2) (Q) board (DB940) VOL board MAIN board
14
14
4-5.
SCHEMATIC DIAGRAM DIGITAL Board (1/3)
· See page 42 for Waveforms.
· See page 42 for IC Block Diagrams.
STR-DB840/DB940
(Page 16)
(Page 17)
(Page 27)
(Page 29)
(Page 29)
(Page 39)
(Page 32)
15
15
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.
STR-DB840/DB940
4-6. SCHEMATIC DIAGRAM DIGITAL Board (2/3) · See page 42 for Waveform. · See page 42 for IC Block Diagrams.
(Page 17)
(Page 15)
16
16
STR-DB840/DB940
4-7. SCHEMATIC DIAGRAM DIGITAL Board (3/3) · See page 42 for Waveform. · See page 42 for IC Block Diagrams.
(Page 16)
(Page 25)
(Page 15)
17
17
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.
STR-DB840/DB940
4-8. PRINTED WIRING BOARD DIGITAL Board (Component Side) · See page 14 for Circuit Boards Location.
(AEP, UK)
C7
C1
C5
C3
9 C6 8
12
5
L1 16 1
C2
R2
R1
FB1
R3
C4
11 12 15
5
1 44 40
22 23 30 33
34
· Semiconductor Location
Ref. No. D1001 D1101 D1201 D1202 D1203 D1204 D1205 D1208 D1209 D1210 D1211 Location I-2 F-3 B-3 D-2 D-5 G-12 G-12 F-15 F-2 D-4 G-16 Ref. No. D1212 IC1 IC1005 IC1007 IC1101 IC1201 IC1202 IC1301 IC1401 IC1402 Location B-1 B-7 I-2 I-1 H-3 D-4 F-5 H-5 G-8 I-8 Ref. No. IC1403 IC1404 IC1503 IC1504 IC1554 Q1201 Q1202 Q1203 Q1204 Location J-7 I-4 I-11 H-12 G-11 E-6 E-6 E-2 E-2
18
18
STR-DB840/DB940
4-9. PRINTED WIRING BOARD DIGITAL Board (Conductor Side) · See page 14 for Circuit Boards Location.
S-VIDEO BOARD CNS215
(Page 26)
DISPLAY BOARD CNP107
(Page 28)
(DB940)
(AEP, UK)
23
(DB840)
(US, CND)
DISPLAY BOARD CNS101
(Page 28)
MAIN BOARD CNS306
(Page 30)
SW BOARD CNP10
DC (2) BOARD CNP808
(Page 38)
(Page 24)
· Semiconductor Location
Ref. No. D1206 D1207 D1502 D1503 IC1001 IC1002 IC1003 IC1004 IC1203 Location F-14 F-13 I-11 I-11 F-1 E-1 D-1 C-1 J-14 Ref. No. IC1204 IC1205 IC1206 IC1207 IC1208 IC1501 IC1511 Q1205 Location J-17 F-14 H-16 H-14 G-13 J-15 B-6 G-17
19
19
STR-DB840/DB940
4-10. PRINTED WIRING BOARDS VIDEO/JOINT (1) (Q) Boards (DB840)
(DB840)
· See page 14 for Circuit Boards Location.
CNS211
(Page 26)
TO JOINT (1) (Q) BOARD
20
20
STR-DB840/DB940
4-11. SCHEMATIC DIAGRAM VIDEO/JOINT (1) (Q) Boards (DB840)
· See page 42 for IC Block Diagram.
(Page 27)
21
21
STR-DB840/DB940
4-12. PRINTED WIRING BOARDS OSD/JOINT (2) (Q) Boards (DB940)
(DB940)
· See page 14 for Circuit Boards Location.
(Page 26)
CNS211
C2062
JW2003
R2026
R2035
(EXCEPT US, CND)
TO JOINT (2) (Q) BOARD
R2004 R2021 X2001 (EXCEPT US, CND)
R2036
F12001
F12003
R2033
C2021
C2022
C2055
C2027
C2008
(US, CND) (US, CND)
R2038
DISPLAY BOARD (Page 28) CNS102
· Semiconductor Location
Ref. No. D2001 D2002 D2003 D2004 D2005 IC2001 IC2002 IC2003 Location C-5 B-5 B-1 B-1 B-5 C-1 C-3 C-3 Ref. No. IC2004 IC2005 IC2006 IC2007 IC2008 Q2001 Q2002 Location C-5 B-2 B-5 B-4 B-6 C-5
22
22
STR-DB840/DB940
4-13. SCHEMATIC DIAGRAM OSD/JOINT (2) (Q) Boards (DB940) · See page 42 for waveforms. · See page 42 IC Block Diagrams.
(Page 29)
(Page 27)
23
23
STR-DB840/DB940
4-14. PRINTED WIRING BOARD AU SW Board
· Semiconductor Location
Ref. No. D1501 D1504 D1505 IC1502 IC1505 IC1506 IC1507 IC1508 IC1509 IC1510 Q1501 Q1502 Q1503 Q1504 Q1505 Q1506 Q1507 Location H-2 H-3 H-4 E-2 B-4 C-4 D-4 G-4 G-3 G-1 H-2 H-1 H-3 H-2 H-4 H-3 I-5
(DB840)
· See page 14 for Circuit Boards Location.
5.1 IN BOARD CNS301
(Page 36)
(DB940) CNP13 4
(Page 19)
DIGITAL BOARD CNP7
(Page 30) 52
1 MAIN BOARD CNP302
(DB840)
MAIN BOARD CNP301
(Page 30)
24
24
STR-DB840/DB940
4-15. SCHEMATIC DIAGRAM AU SW Board · See page 42 for IC Block Diagram.
(Page 17)
(Page 37)
(Page 31)
(Page 32)
25
25
STR-DB840/DB940
4-16. PRINTED WIRING BOARD S-VIDEO Board
· See page 14 for Circuit Boards Location.
(DB840)
(DB940)
DIGITAL B0ARD CNS1
(Page 19)
(DB840)
(DB940)
(DB840) JOINT (1) (Q) BOARD CNP211
(Page 20)
(DB940) JOINT (2) (Q) BOARD CNP211
(Page 22)
VIDEO 3 BOARD CNP307
(Page 34)
26
26
STR-DB840/DB940
4-17. SCHEMATIC DIAGRAM S-VIDEO Board · See page 42 for IC Block Diagrams.
(Page 23)
(Page 21)
(Page 35)
(Page 15)
27
27
STR-DB840/DB940
4-18. PRINTED WIRING BOARD DISPLAY Board · See page 14 for Circuit Boards Location.
(Page 19) (Page 22) (Page 19)
(Page 34)
(Page 34)
(Page 34) (Page 34)
· Semiconductor Location
Ref. No. D101 D102 D103 D106 D107 D121 D130 D132 D134 D135 D136 D137 D138 D139 D140 D141 D147 D148 D149 D150 D151 D152 D153 D154 Location B-7 B-5 C-5 C-5 C-8 A-7 E-6 E-7 E-6 E-6 B-3 B-3 B-2 B-3 B-3 C-3 B-11 C-2 B-3 B-2 B-3 C-3 C-3 C-5 Ref. No. D155 D156 D157 DD11 DD12 DD13 DD14 DD15 DD16 IC11 IC102 IC103 IC105 IC106 IC108 Q102 Q103 Q104 Q129 Q130 QQ11 Location C-4 C-6 B-11 C-11 A-9 A-9 B-10 B-10 B-10 A-10 D-7 B-8 A-2 C-10 D-2 B-11 A-4 C-11 A-9 A-10 C-11
28
28
STR-DB840/DB940
4-19. SCHEMATIC DIAGRAM DISPLAY Board · See page 42 for Waveforms. · See page 42 for IC Block Diagrams.
(Page 23)
(Page 35) (Page 35)
(Page 35)
(Page 35)
(Page 15)
(Page 15)
29
29
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.
STR-DB840/DB940
4-20. PRINTED WIRING BOARD MAIN Board
· Semiconductor Location
(Page 40)(Page 36) Ref. No. D301 D501 D502 D503 D504 D505 D506 D545 D546 D547 D548 D549 D551 D552 D553 D554 D555 D556 D598 D599 D601 D602 D603 D604 D605 D606 D607 D608 D649 D671 D681 D698 D701 D702 D703 D704 D705 D706 D749 D751 D752 D753 D754 D798 D799 IC301 IC302 IC303 IC304 IC309 IC330 IC401 IC402 IC404 IC405 Location A-1 B-11 B-11 B-11 B-11 G-10 G-11 D-7 D-7 H-8 H-9 H-9 B-8 B-8 B-7 B-7 G-9 G-9 B-10 B-6 B-9 B-9 B-9 B-9 G-8 G-9 G-9 E-5 C-4 D-5 E-5 B-8 B-6 B-6 B-5 B-5 G-10 G-10 C-4 B-4 B-4 B-3 B-3 B-4 B-2 H-3 I-2 E-3 F-2 C-2 G-3 I-6 I-8 I-5 I-7 Ref. No. IC408 IC409 IC410 IC414 IC415 IC416 IC501 IC601 IC651 IC701 Q301 Q501 Q503 Q506 Q507 Q508 Q509 Q510 Q511 Q546 Q547 Q548 Q549 Q556 Q557 Q558 Q559 Q560 Q561 Q596 Q598 Q599 Q601 Q606 Q607 Q608 Q609 Q610 Q611 Q613 Q645 Q671 Q681 Q698 Q706 Q707 Q708 Q709 Q710 Q745 Q756 Q757 Q758 Q798 Q799 Location H-10 H-11 H-9 D-10 D-11 C-7 C-9 C-11 E-11 C-6 A-1 F-10 F-10 A-11 A-10 B-10 G-11 G-11 G-10 D-7 G-9 H-8 H-8 A-7 A-7 B-6 G-9 G-10 G-9 D-7 B-10 B-6 E-5 A-9 A-8 B-8 G-9 G-9 G-9 H-7 C-3 D-5 F-5 B-8 A-6 A-5 B-5 G-10 G-10 C-3 A-4 A-3 B-2 B-4 B-3 (Page 40)
SP BOARD CN601 SP BOARD CN701 BIAS (RS) BOARD BIAS (LS) BOARD CN751 CN701
· See page 14 for Circuit Boards Location.
(Page 36)
(Page 36)
BIAS (R) BOARD CN551
(Page 36)
BIAS (L) BOARD CN501
BIAS (C) BOARD CN601
(DB940)
(Page 36)
D671 R671 Q671 R670 R669 RY671 4
(DB940)
(DB940)
CNP803
SP BOARD CN501 (DB940)
(Page 40)
(DB840)
R349
CNP302 (DB940)
R399
(EXCEPT US, CND)
(DB940)
AU SW BOARD CNP13
AU SW BOARD CNP11
VIDEO 3 BOARD CNP307
H. P BOARD CNP751
DC (2) BOARD CNP806
DC (2) BOARD CNP807
DIGITAL BOARD CNS5
DC (1) BOARD CNP802
VOL BOARD CNS111
(Page 34)
(Page 24)
(Page 24)
(Page 34) (Page 34) (Page 38)
(Page 38)
(Page 19)
(Page 38)
30
30
4-21. SCHEMATIC DIAGRAM MAIN Board (1/3)
· See page 42 for IC Block Diagrams.
STR-DB840/DB940
(Page 35)
(Page 25)
(Page 32)
(Page 33)
31
31
STR-DB840/DB940
4-22. SCHEMATIC DIAGRAM MAIN Board (2/3) · See page 42 for IC Block Diagrams.
(Page 35)
(Page 33)
(Page 33)
(Page 25)
(Page 33)
(Page 15)
(Page 33)
(Page 31) (Page 33)
32
32
4-23. SCHEMATIC DIAGRAM MAIN Board (3/3)
STR-DB840/DB940
(Page 35)
(Page 37) (Page 41) (Page 32)
(Page 37) (Page 41)
(Page 32)
(Page 41) (Page 37)
(Page 39) (Page 32)
(Page 37)
(Page 39) (Page 32)
(Page 39) (Page 37)
(Page 32)
(Page 31)
33
33
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.
STR-DB840/DB940
4-24. PRINTED WIRING BOARDS H.P/MUTING/POWER/SW/VOL/VIDEO 3 Boards · See page 14 for Circuit Boards Location.
(Page 30)
(Page 28)
(Page 28)
(Page 28)
· Semiconductor Location
Ref. No. D111 D112 D113 D114 D115 Location B-4 B-4 B-4 B-5 B-5
(Page 28)
(Page 26) (Page 30)
(Page 30)
34
34
4-25. SCHEMATIC DIAGRAM H.P/MUTING/POWER/SW/VOL/VIDEO 3 Boards
STR-DB840/DB940
(Page 32)
(Page 29) (Page 29)
(Page 29)
(Page 29)
(Page 27)
(Page 31) (Page 33)
35
35
STR-DB840/DB940
4-26. PRINTED WIRING BOARDS 5.1 IN/BIAS (C)/BIAS (L)/BIAS (LS)/BIAS (R)/BIAS (RS) Boards
· See page 14 for Circuit Boards Location.
MAIN BOARD CNP611
(Page 30)
MAIN BOARD CNP511
(Page 30)
MAIN BOARD CNP711
(Page 30)
MAIN BOARD CNP561
(Page 30)
AU SW BOARD CNP12
(Page 24)
MAIN BOARD CNP761
(Page 30)
36
36
STR-DB840/DB940
4-27. SCHEMATIC DIAGRAM 5.1 IN/BIAS (C)/BIAS (L)/BIAS (LS)/BIAS (R)/BIAS (RS) Boards
(Page 33)
(Page 33)
(Page 25)
(Page 33)
(Page 33)
(Page 33)
37
37
STR-DB840/DB940
4-28. PRINTED WIRING BOARDS DC (1)/DC (2) Boards · See page 14 for Circuit Boards Location.
TO DC (2) BOARD
(Page 30)
MAIN BOARD CNP811
AC BOARD CNV902
(Page 40)
TO DC (1) BOARD
(Page 40)
AC BOARD CN809
JW1
(Page 19)
DIGITAL BOARD CNP4
JW2 CNP810
· Semiconductor Location
Ref. No. D802 D803 D804 D805 D806 D807 D808 D809 D810 D811 D812 D813 Q801 Location C-3 C-3 C-3 C-3 C-3 C-3 C-3 C-3 B-1 B-3 B-3 C-1 B-2
CNP807
(Page 30)
MAIN BOARD CNP803
MAIN BOARD CNP812
(Page 30)
38
38
STR-DB840/DB940
4-29. SCHEMATIC DIAGRAM DC (1)/DC (2) Boards
(Page 33)
(Page 33)
(Page 33)
(Page 15)
(Page 41)
(Page 41)
39
39
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.
STR-DB840/DB940
4-30. PRINTED WIRING BOARDS AC/SP Boards
· Semiconductor Location
Ref. No. D901 D902 D903 D904 D905 D906 D907 Q901 Location B-1 B-1 B-1 B-1 B-1 B-1 C-1 C-1
· See page 14 for Circuit Boards Location.
POWER TRANSFORMER (T901)
(Page 38)
DC (2) BOARD CNP809
(Page 38)
PRE OUT JJ101 JJ102 CENTER REAR SUB WOOFER L R L FRONT R
RR202 RR203
RR302 RR301 RR303
RR352 RR351
RR103
RR153
RR152 RR353
CC152
RR101
RR102
RR151
RR201
MAIN BOARD CNP603
(Page 30)
MAIN BOARD CNP602
(Page 30)
MAIN BOARD CNP601
(Page 30)
40
40
STR-DB840/DB940
4-31. SCHEMATIC DIAGRAM AC/SP Boards
(Page 39)
(Page 39)
(Page 33) (Page 33) (Page 33)
41
41
The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié.
· Waveforms DIGITAL Board
1 IC1401
OSD Board (DB940)
1 IC2004 qg (EXD)
DISPLAY Board
1 IC102 id (XI)
· IC Block Diagrams IC1 BU1924F-E2 (DIGITAL Board (AEP, UK))
RCLK VDD2 NC XO VSS2 T1 T2
16
15
14
13
XI
12 11 10
9
4 Vp-p
5.4 Vp-p
4.8 Vp-p
PLL 57kHz RDS/ARI PLL 1187.5Hz
CLOCK
DIGITAL
TEST
10 MHz
6.2 MHz
16 MHz
BIPHASE DECODER
COMPARATOR
2 IC1201 od (X1)
2 IC2001 9
2 IC106 qh (X OUT)
DEFFERENTIAL DECODER ANTI-ALIASING FILTER
1
QUAL
2
RDAT
3
VREF
4
MUX
ANALOG
8th SWITCHED CAPACITOR FILTER
5
VDD1
6
VSS1
7
VSS3
8
CMP
5.6 Vp-p
4.8 Vp-p
4.7 Vp-p
16 MHz
14 MHz
7.28 MHz
IC103 ML9261MBZ060 (DISPLAY Board)
3 IC1 qd (XI) (AEP, UK)
3 IC2001 qd (Except US, Canadian)
6.5 Vp-p
3.3 Vp-p
4.332 MHz
17.34 MHz
4 IC1301 8 (XI), IC1404 1
6.8 Vp-p
12.288 MHz
HVO25 HVO24 HVO23 HVO22 HVO21 HVO20 HVO19 HVO18 HVO17 HVO16 HVO15 HVO14 HVO13 HVO12 HVO11 HVO10 HVO9 HVO8 HVO7 HVO6 HVO5 HVO4 HVO3 HVO2 HVO1 VDISP VDD DIN DOUT CLK LS CL CHG L-GND D-GND
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35
OUTPUT CIRCUIT
C 60BIT R REGISTER
RESET SI C R 60BIT SHIFT SO REGISTER
70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36
HVO26 HVO27 HVO28 HVO29 HVO30 HVO31 HVO32 HVO33 HVO34 HVO35 HVO36 HVO37 HVO38 HVO39 HVO40 HVO41 HVO42 HVO43 HVO44 HVO45 HVO46 HVO47 HVO48 HVO49 HVO50 HVO51 HVO52 HVO53 HVO54 HVO55 HVO56 HVO57 HVO58 HVO59 HVO60
42
42
IC105
BA6208 (DISPLAY Board)
SWITCH
MOTOR DRIVE
SWITCH
MOTOR DRIVE REG
1
NC
2
INPUT 1
3
INPUT 2
4
NC
5
GND
6
Vcc
7
OUTPUT 2
8
OUTPUT1
9
NC
IC108
NJU3719L (DISPLAY Board)
P11 P12 P13 P14 P15 P16 P17 VSS P18 P19 P20 P21 P22 P23 P24
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
PARALLEL DATA OUTPUT BUFFER
LATCH CIRCUIT
SHIFT REGISTER
CONTROL CIRCUIT
30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
VDD P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 CLR STB CLK DATA
IC201 IC251, 252 IC2005
V+ 16
NJM2296D (VIDEO Board (DB840)) NJM2296D (S-VIDEO Board) NJM2296D (OSD Board (DB940))
Vin1 13 GND 12 Vout3 11 SW2 10 Vin2 9
Vout2 SW1 15 14
S6 S1 S4 S5
S7 S2
S3
1 2 Vout1 SW5
3 Vin5
4 SW3
5 Vin4
6 SW4
7 Vin3
8 V-
43
IC253 NJM2145D (S-VIDEO Board (US, Canadian))
VCC 1 OUT1 2 INH IN4 3 IN3 4 IN2 5 INPUT CIRCUIT INH OUTPUT CIRCUIT OUT3-1 6 OUTPUT CIRCUIT OUT3-2 7 OUTPUT CIRCUIT OUT3-3 8 9 OUT2-3 10 OUT2-2 14 INH2 13 IN1 12 NC 11 OUT2-1 16 GND 15 INH1
IC414-416
TC9299P (MAIN Board)
VSS OUT IN NC A-GND
1 2 3 4 5
16 VDD 15 14 13 12 OUT IN NC A-GND
L-ch
L-CH DATA LATCH CIRCUIT
R-CH DATA LATCH CIRCUIT
R-ch
CS1 GND CK
6 7 8
LEVEL SHIFT CIRCUIT
SHIFT REGISTER (13bit) STROBE GENERATOR CIRCUIT
LEVEL SHIFT CIRCUIT
11 CS2 10 STB 9 DATA
IC301 IC303 IC330 IC1502
TC9273N-004 (MAIN Board) TC9273N-014 (MAIN Board) TC9273N-013 (MAIN Board (DB940)) TC9273F-012 (EL) (AU SW Board)
VSS 1 S1 2 S2 3 S3 4 S4 5 S5 6 S6 7 S7 8 S8 9 S9 10 S10 11 S11 12 GND 13 10BIT LATCH CIRCUIT (L-CH) 10BIT LATCH CIRCUIT (R-CH)
28 VDD 27 S1 26 S2 25 S3 24 S4 23 S5 22 S6 21 S7 20 S8 19 S9 18 S10 17 S11
16 STB CK 14 LEVEL SHIFT & SHIFT REGISTER 15 DATA
44
IC501, 601, 701
uPC2581V (MAIN Board)
BIAS CIRCUIT
PROTECTOR REG DRIVE PRE DRIVE 4
COMP1
PRE DRIVE 7
GND
DRIVE
1
MUTE
2
+ VOUT1
3
VOUT1
5
MF1
6
IN1
8
IN2
9
NF2
10
COMP2
11
VOUT2
12
+ VOUT2
13 14 15
VCC1 VCC2 VEE
IC1005
TC74ACT153AF (EL) (DIGITAL Board)
DATA INPUTS
STROBE A VCC 2G SELECT 2C3 13 16 15 14
2C2 2C1 2C0 12 11 10
OUTPUT 2Y 9 2Y
2C3 2C2 2C1 2C0 2G B B A A
B 1G
B
A
A
1C3 1C2 1C1 1C0 4 5 2 1 3 6 STROBE B 1C3 1C2 1C1 1C0 1G SELECT DATA INPUTS
1Y 7 8 OUTPUT GND 1Y
45
IC1101
LC89055W-RA8 (DIGITAL Board)
VF/P3/C3 F2/P2/C2 F1/P1/C1 F0/P0/C0 CSFLAG DI DO ERROR BPSYNC AUTO DGND
36 35 34 33 32 31
30
XSEL
29 28 27 26 25
CE 37 CL 38 XSEL 39 MODE0 40 MODE1 41 DGND 42 DVDD 43 MICROCOMPUTER INTERFACE SAMPLING FREQUENCY
C BIT DETECT
PA/PB DETECT
24 AUDIO 23 EMPHA
LOCK DETECT
CLOCK
DOSEL0 44 DOSEL1 45 CKSEL0 46 CKSEL1 47 XMODE 48
DATA DEMODULATOR
TIMING
22 21 20 19 18 17 16 15 14 13
XIN XOUT XMCK DVDD DGND XSTATE DATAO LRCK BCK CKOUT
INPUT CIRCUIT
PLL
1
DISEL
2 3
DOUT DINO
4
DINI
5
DIN2
6 7
DGND DVDD
8 9 10
R VIN LPF
11 12
AVDD AGND
IC1206
NJM2103M-TE2 (DIGITAL Board)
CR
1
8
RESET
+ VSC 2 + VREF 7 VSA
OUTC
3
6
VSB/SESIN
GND
4 Q R S + +
5
V+
46
IC1402
IDT71V016S15PH-AUTL (DIGITAL Board)
A4 A3 A2 A1 A0
1 2 3 4 5 CHIP ENABLE BUFFER
ROW/COLUMN DECODER OUTPUT ENABLE BUFFER 64K x 16 MEMORY ARRAY BYTE ENABLE BUFFER
44 A5 43 A6 42 A7 41 OE 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 BHE BLE I/O 15 I/O 14 I/O 13 I/O 12 VSS VDD I/O 11 I/O 10 I/O 9 I/O 8 NC A8 A9 A10 A11 NC
CS 6 I/O 0 I/O 1 I/O 2 I/O 3 VDD VSS I/O 4 I/O 5 I/O 6 I/O 7 7 8 9 10 11 12 13 14 15 16
WE 17 A15 A14 A13 A12 NC 18 19 20 21 22
WRITE ENABLE BUFFER
LOW BYTE I/O BUFFER
SENSE AMP & WRITE PRIVER
HIGH BYTE I/O BUFFER
IC1403
G1 1 1A 2
TC74VHC367FT (EL) (DIGITAL Board)
IC1503
AK4527 (DIGITAL Board)
LOOP1 LOOP0/SDA/CDTI DIF1/SCL/CCLK DIF0/CSN P/SN MCLK DZF1 AVSS AVDD VREFH VCOM
44 43 42 41 40 39 38 37 36 35 34
16 VCC 15 G2 14 6A
1Y 3 2A 4
13 6Y 12 5A
2Y 5 3A 6
11 5Y 10 4A
3Y 7 GND 8
9 4Y
SDOS I2C SMUTE BICK LRCK SDTI1 SDTI2 SDTI3
1 2 3 4 5 6 7 8
INPUT CIRCUIT
AUDIO INTERFACE
OUTPUT CIRCUIT
33 32 31 30 29 28 27 26 25 24 23
DZF2 RIN+ RIN LIN+ LIN ROUT1 LOUT1 ROUT2 LOUT2 ROUT3 LOUT3
SDTO 9 DAUX 10 DFS 11 FORMAT CONVERTER 12 13 14 15 16 17 18 19 20 21 22
IC2002
BA7622 (OSD Board (DB940))
75OHM DRIVER 75OHM DRIVER 75OHM DRIVER
IC2006, 2008
SYNC SEP 1
V IN
GND 1 IN1 2 IN2 3 IN3 4
8 OUT1 7 OUT2 6 OUT3 5 VCC
V-SYNC SEP 4 5
2 3
HD VSS
VD VDD
DEM1 DEM0 TVDD DVDD DVSS PDN ICKS2 ICKS1 ICKS0 CAD1 CAD0
LA7213 (OSD Board (DB940))
47
4-32.
IC PIN FUNCTION DESCRIPTION
Pin Name DISEL DOUT DIN0 DIN1 DIN2 DGND DVDD R VIN LPF AVDD AGND CK OUT BCK LRCK DATAO XSTATE DGND DVDD XMCK XOUT XIN EMPHA AUDIO CSFLAG F0/P0/C0 F1/P1/C1 F2/P2/C2 F3/P3/C3 DVDD DGND AUTO BPSYNC ERROR DO DI CE CLK XSEL MODE0 MODE1 DGND DVDD I/O I O I O I -- -- I I O -- -- O O O O O -- -- O O I O O O O O O O -- -- O O O O I I I I I I -- -- Description Input data select terminal (fixed at "L" in this set) EIAJ data and parity output terminal Not used Amp integrate data input from the select switch (IC1005) Amp integrate data input terminal Not used (fixed at "L") Amp integrate data input terminal Not used (fixed at "L") Ground terminal (digital system) Power supply terminal (+5V) (digital system) Input terminal for VCO generator band adjustment Input terminal for VCO self running frequency set External LPF for PLL is connected to this terminal Power supply terminal (+5V) (analog system) Ground terminal (analog system) Clock signal output to the A/D, D/A converter (IC1503) Bit clock signal output to the A/D, D/A converter (IC1503), dolby digital audio decoder (IC1301), and audio DSP (IC1401) Clock signal output to the A/D, D/A converter (IC1503), dolby digital audio decoder (IC1301), and audio DSP (IC1401) Audio data output to the dolby digital audio decoder (IC1301) Clock status flag output to the system controller (IC1201) Ground terminal (digital system) Power supply terminal (+5V) (digital system) Not used (open) Clock output terminal Not used (open) Clock input from the clock oscillator (IC1404) (12.288MHz) Emphasis monitor output terminal "H": on Not used Terminal for check Not used (open) Terminal for check Terminal for check Terminal for check Terminal for check Power supply terminal (+5V) (digital system) Ground terminal (digital system) Not used (open) Not used (open) Error mute output to the system controller (IC1201) C-bit output to the system controller (IC1201) Data input from the system controller (IC1201) Chip enable signal input from the system controller (IC1201) Clock signal input from the system controller (IC1201) Clock select terminal (fixed at "H" in this set) Mode 0 input terminal (fixed at "L" in this set) Mode 1 input terminal (fixed at "L" in this set) Ground terminal (digital system) Power supply terminal (+5V) (digital system)
· DIGITAL BOARD IC1101 LC89055W-RA8 (AUDIO INTERFACE RECEIVER)
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
48
Pin No. 44 45 46 47 48
Pin Name DOSEL0 DOSEL1 CKSEL0 CKSEL1 XMODE
I/O O O I I I
Description Data select 0 output terminal (fixed at "L" in this set) Data select 1 output terminal (fixed at "L" in this set) System clock select 0 input terminal (fixed at "L" in this set) System clock select 1 input terminal (fixed at "L" in this set) Reset signal input from the system controller (IC1201)
49
· DIGITAL BOARD IC1201 MB90573PFV-G-296-BND (SYSTEM CONTROLLER)
Pin No. 1 2 3 4 5 6 7 8 9 10 11, 12 13 14 15 16 17 to 24 25 26 27 28 29 30 31 32 33 34 35 36, 37 38 39 40, 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55
Pin Name SCLK SI SO CS IC DSIG NC VCC SIN0 SOT0 NC XHDWR XHDRD SOD XHDCS HD7 to HD0 HA0 XRST HRDY CS CCLK CDTI SMUTE PD VSS C 96kHz NC DVCC DVSS NC AVCC AVR+ AVR AVSS EVSTB EVDATA EVCLK DISPMR DISPDATA SLVDTA/REQ DISPCLK NC VCC SLAT
I/O O I O O O I O -- I O O O O I O O O O O O O I O O -- -- O I -- -- O -- -- -- -- O O O I I O I I -- O
Description Serial clock signal output to the dolby digital audio decoder (IC1301) Serial data input from the dolby digital audio decoder (IC1301) Serial data output to the dolby digital audio decoder (IC1301) Chip select signal output to the dolby digital audio decoder (IC1301) Reset signal output to the dolby digital audio decoder (IC1301) Data detect signal input from the digital audio interface receiver (IC1101) Not used (fixed at "L") Power supply terminal (+5V) UART signal input from the display controller (IC102) UART signal output to the display controller (IC102) Not used (fixed at "L") Data write output to the audio DSP (IC1401) Data read output terminal Not used (fixed at "L") Serial data input from the audio DSP (IC1401) Chip select signal output to the audio DSP (IC1401) Two-way data bus with the audio DSP (IC1401) Address data output to the audio DSP (IC1401) Reset signal output to the audio DSP (IC1401) Ready signal output to the audio DSP (IC1401) Chip select signal output to the A/D, D/A converter (IC1503) Clock signal output to the A/D, D/A converter (IC1503) Data input from the A/D, D/A converter (IC1503) Soft mute signal output to the A/D, D/A converter (IC1503) Reset signal output to the A/D, D/A converter (IC1503) Ground terminal External power regulator capacitor is connected terminal Dfs signal output to the A/D, D/A converter (IC1503) Not used (fixed at "L") Power supply terminal (+5V) (digital system) Ground terminal (digital system) Not used (fixed at "L") Power supply terminal (+5V) (analog system) Power supply terminal (+5V) Ground terminal Ground terminal (analog system) Serial strobe output to the select switch circuit Serial data output to the select switch circuit Serial clock output to the select switch circuit Display master request signal input from the display controller (IC102) Display master data input from the display controller (IC102) Slave data/request output to the display controller (IC102) Display master clock input from the display controller (IC102) Not used (fixed at "L") Power supply terminal (+5V) Tuner latch signal output to the FM/AM tuner unit (TM301)
50
Pin No. 56 57 58 59 60 61, 62 63 64 65 66 67 68 to 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95, 96 97 98 99 100 101 102 103 104 105 106
Pin Name SDATA SCLK DATA IN AUSTOP STEREO NC VSS NC TH PROTEC STOP NC VIDEO (SW4) X1A X0A VIDEO (SW3) VIDEO (SW2) VIDEO (SW1) HI-FI/QS TAPE NO/YES VIDEO 3 NO/YES DTS NO/YES ACMUTE 96K NO/YES TMUTE SMUTE HSTX MD2 MD1 MD0 REST VSS XO XI VCC PO0, PO1 RY-4/8 RY-PRE RY-FRONT/A RY-FRONT/B RY-CENTER RY-REAR RY-WOOFER RY-HP RY-POWER ANG/DIG
I/O O O I I I I -- I I I I I O -- -- O O O I I I I O I O O -- O O O I -- O I -- I O O O O O O O O O O
Description Tuner data output to the FM/AM tuner unit (TM301) Tuner clock signal output to the FM/AM tuner unit (TM301) PLL data input from the FM/AM tuner unit (TM301) Tuned display detection signal input from the FM/AM tuner unit (TM301) Stereo detection signal input from the FM/AM tuner unit (TM301) Not used (fixed at "L") Ground terminal Not used (fixed at "L") Protect signal input terminal (fixed at "L" in this set) Over load detect signal input from the protect circuit "L": protect detect AC power check signal input from the power control (IC1206) Not used (fixed at "L") Video select (SW4) signal output to the video select switch (IC251, 252) Not used (open) Not used (open) Video select (SW3) signal output to the video select switch (IC251, 252) Video select (SW2) signal output to the video select switch (IC251, 252) Video select (SW1) signal output to the video select switch (IC251, 252) Model check detection input terminal "L": HI-FI "H": QS "L": tape yes "H": tape no "L": VIDEO 3 yes "H": VIDEO 3 no "L": DTS yes "H": DTS no Not used Tape no/yes signal detection input terminal DTS no/yes signal detection input terminal 96K no/yes signal detection input terminal
VIDEO 3 no/yes signal detection input terminal
Muting control signal output to the power amp (IC501, 601, 701) Tuner muting control signal output to the FM/AM tuner unit (TM301) "H": muting Surround muting control signal output to the AF amp (IC1508, 1509, 1510) Hardware standby terminal (fixed at "H" in this set) MD2 signal output to the display controller (IC102) MD1 signal output terminal (fixed at "H" in this set) MD0 signal output to the display controller (IC102) Reset signal input from the display controller (IC102) Ground terminal Main system clock output terminal (16MHz) Main system clock input terminal (16MHz) Power supply terminal (+5V) Rewrite terminal for the flash memory 4/8 relay drive signal out put terminal Not used (fixed at "L") Not used (open)
Pre amp relay drive signal output terminal "H": relay on Front speaker A relay drive signal output terminal "H": relay on Front speaker B relay drive signal output terminal "H": relay on Center speaker relay drive signal output terminal "H": relay on Rear speaker relay drive signal output terminal "H": relay on Rear woofer relay drive signal output terminal "H": relay on Headphone relay drive signal output terminal "H": relay on Power relay drive signal output terminal "H": relay on Analog/digital select signal output terminal "L": analog "H": digital
51
Pin No. 107 108 109 110 111 112 113 114 115 to 111 118 119 120
Pin Name DIG-INB DIG-INA XMODE CL CE DI DO ERROR NC XSTATE VSS NC
I/O O O O O O O I I I I -- I
Description Digital input select B control signal output to the select switch (IC1005) Dgital input select A control signal output to the select switch (IC1005) Reset signal output to the digital audio interface receiver (IC1101) Clock signal output to the digital audio interface receiver (IC1101) Chip enable signal output to the digital audio interface receiver (IC1101) Data output to the digital audio interface receiver (IC1101) Data input from the digital audio interface receiver (IC1101) Error signal input from the digital audio interface receiver (IC1101) Not used (fixed at "L") Clock status flag signal input from the digital audio interface receiver (IC1101) Ground terminal Not used (fixed at "L")
52
· DIGITAL BOARD IC1401 CXD2712R (AUDIO DSP)
Pin No. 1 2 to 5 6, 7 8 9 10 11 12 13 14 15 16 to 20 21 22 23 to 25 26 27 to 30 31 32 to 40 41 42 43 to 49 50 51 52 53 to 60 61 62 to 69 70 71 72 73 74 75 76 to 80 81 82 83 to 89 90 91 92 to 94 95 96 97 98
Pin Name VSS3 SOA to SOD ECJ0, ECJ1 NC XHDWR XHDRD VSS4 VDD2 HRDY XHDCS HA0 HD0 to HD4 VSS5 VDD3 HD5 to HD7 XRST FGP0 toFGP3 VSS6 ED0 to ED8 VSS7 VDD4 ED9 to ED15 TEST VSS8 VDD5 ED16 to ED23 VSS9 ED24 to ED31 XOE VSS10 VDD6 CAS XWE RAS EA0 to EA4 VSS11 VDD7 E5 to EA11 EA12 VSS0 EA13 to EA15 EA16 TSTA PLDIVF PLDIVB
I/O -- O I O I I -- -- O I I I/O -- -- I/O I I/O -- I/O -- -- I/O I -- -- I/O -- I/O O -- -- O O O O -- -- O O -- O O I I O Ground terminal
Description Serial data output to the A/D, D/A converter Conditional jump input terminal (fixed at "L" in this set) Not used (fixed at "L") Write data input from the system controller (IC1201) Read data input terminal Not used (fixed at "H") Ground terminal Power supply terminal (+3.3V) Ready signal output to the system controller (IC1201) Chip select signal input from the system controller (IC1201) Address signal input from the system controller (IC1201) Two-way data bus with the system controller (IC1201) Ground terminal Power supply terminal (+3.3V) Two-way data bus with the system controller (IC1201) Reset signal input from the system controller (IC1201) "L": reset Data output terminal for the test Ground terminal Two-way data bus with external RAM Not used (fixed at "L") Ground terminal Power supply terminal (+3.3V) Two-way data bus with external RAM Not used (fixed at "L") Test terminal (Normally: fixed at "L") Ground terminal Power supply terminal (+3.3V) Two-way data bus with the S-RAM (IC1402) Ground terminal Two-way data bus with the S-RAM (IC1402) Output enable signal output to the S-RAM (IC1402) Ground terminal Power supply terminal (+3.3V) External RAM column address strobe signal output terminal Not used Write enable signal output to the S-RAM (IC1402) External RAM raw address strobe signal output terminal Not used Address signal output to the S-RAM (IC1402) or test data input from the S-RAM (IC1402) Ground terminal Power supply terminal (+3.3V) Address signal output to the S-RAM (IC1402) or test data input from the S-RAM (IC1402) Address signal output to the S-RAM (IC1402) Ground terminal Address signal output to the S-RAM (IC1402) Address signal output terminal (for check) Test data input terminal (Normally: fixed at "L") PLL input frequency select terminal PLL input frequency select terminal "L": 256fs "H": 128fs (fixed at "L" in this set) "L": 768fs "H": 1024fs (fixed at "H" in this set)
53
Pin No. 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 to 120
Pin Name CLKI CLKO VSS1 VDD0 AVSS AVDD PLLCK XPLLEN TST LRCT LROUT BKOUT VSS2 VDD1 BCK0 BCK1 LRCK0 LRCK1 SIA to SID
I/O I O -- -- -- -- I/O I I I O O -- -- I I I I --
Description Master clock signal input terminal (10MHz) Master clock signal output terminal (10MHz) Ground terminal Power supply terminal (+3.3V) Ground terminal (for PLL cell) Power supply terminal (+3.3V) (for PLL cell) PLL output/test clock signal input terminal (for check) PLL cell oscillation enable signal input terminal (fixed at "L" in this set) Test data input terminal (Normally: fixed at "L") Frequency counter input terminal (fixed at "L" in this set) Clock driver signal output terminal (for check) Clock driver signal output terminal (for check) Ground terminal Power supply terminal (+3.3V) Clock 0 signal input from the digital audio interface receiver (IC1101) Clock 1 signal input from the digital audio interface receiver (IC1101) Clock 0 signal input from the digital audio interface receiver (IC1101) Clock 1 signal input from the digital audio interface receiver (IC1101) Serial data input from the dolby digital audio decoder (IC1301) "L": oscillation enable
54
· DIGITAL BOARD IC1503 AK4527 (A/D, D/A CONVERTER)
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12, 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
Pin Name SDOS I2C SMUTE BCLK LRCK SDT1 SDT2 SDT3 SDTO DAUX DFS DEM1, DEM0 TVDD D5V DGND PD ICKS2 ICKS1 ICKS0 CAD1 CAD0 LOUT3 ROUT3 LOUT2 ROUT2 LOUT1 ROUT1 LIN LIN+ RIN RIN+ DZF2 VCOM VREFH A5V AGND DZF1 MCLKI S/P CS CCLK CDTI LOOP1
I/O I I I I I I I I O I I I -- -- -- I I I I I I O O O O O O I I I I O O I -- -- O I I I I I O
Description Data source select terminal "L": internal ADC output "H": DAUX input Control mode select terminal "L": 3-wire serial "H": I2C bus Soft mute signal input from the system controller (IC1201) Audio serial data clock signal input from the digital audio interface receiver (IC1101) Input channel clock signal input from the digital audio interface receiver (IC1101) DAC1 audio serial data input from the audio DSP (IC1401) DAC2 audio serial data input from the audio DSP (IC1401) DAC3 audio serial data input from the audio DSP (IC1401) audio serial data output to the dolby digital audio decoder (IC1301) Audio serial data input terminal Not used (fixed at "L") Double speed sampling mode signal input from the system controller (IC1201) "L": normal speed "H": double speed De-emphasis signal input terminal Not used (fixed at "L") Power supply terminal (+5V) (for output buffer ) Power supply terminal (+5V) (digital system) Ground terminal (digital system) Power down and reset signal input terminal "L": power down and reset Clock select 2 input terminal (fixed at "L" in this set) Clock select 1 input terminal (fixed at "H" in this set) Clock select 0 input terminal (fixed at "H" in this set) Chip address 1 input terminal Used during the serial control mode (fixed at "L" in this set) Chip address 0 input terminal Used during the serial control mode (fixed at "L" in this set) L-ch 3 analog output to the select switch (IC1502) R-ch 3 analog output to the select switch (IC1502) L-ch 2 analog output to the select switch (IC1502) R-ch 2 analog output to the select switch (IC1502) L-ch 1 analog output to the select switch (IC1502) R-ch 1 analog output to the select switch (IC1502) L-ch analog negative input from the line amp (IC1504) L-ch analog positive input from the line amp (IC1504) R-ch analog negative input from the line amp (IC1504) R-ch analog positive input from the line amp (IC1504) Zero input detect 2 terminal Not used (open) Common voltage output terminal Large external capacitor is used to reduce power supply noise Positive voltage reference input terminal (+5V) Power supply terminal (+5V) (analog system) Ground terminal (analog system) Zero input detect 1 terminal Not used (open) Master clock input from the digital audio interface receiver (IC1101) Parallel or serial select terminal "L": serial control mode (fixed at "L" in this set) Chip select signal input from the system controller (IC1201) Clock signal input from the system controller (IC1201) Control signal output to the system controller (IC1201) Loop back mode 1 signal output terminal (fixed at "L" in this set)
55
· DISPLAY BOARD IC102 MB90553ABPF-G-169-BND (DISPLAY CONTROLLER)
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 to 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 to 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
Pin Name EQ SUR LEVEL NAME SETUP VOLUME MUTING NC VOLUP VOLDOWN VSS 5V CHECK POWER RY NC SIRCS IN FLASH DATA OUT FLASH DATA IN FL CLK FL DATA VCC FL LAT FL CLEAR OSD CLK C OSD DOUT NC NC NC AVCC AVRH AVRL AVSS AD KEY IN 1 AD KEY IN 2 AD KEY IN 3 AD KEY IN 4 VSS AD KEY IN 5 AD KEY IN 6 AD KEY IN 7 RDS SIGNAL STOP NC MD0 MD1
I/O O O O O O O O -- O O -- O O -- I O I O O -- O O O -- O -- -- -- -- -- -- -- I I I I -- I I I I I -- I I
Description EQUALIZER indicator (D123) drive signal output terminal "L": on SURROUND indicator (D122) drive signal output terminal "L": on LEVEL indicator (D119) drive signal output terminal "L": on NAME indicator (D151) drive signal output terminal "L": on SET UP indicator (D152) drive signal output terminal "L": on VOLUME indicator drive signal output terminal "L": on Not used (open) MUTING indicator (D101) drive signal output terminal "L": on Not used (open) Motor drive signal (volume up direction) output to the volume motor drive (IC105) Motor drive signal (volume down direction) output to the volume motor drive (IC105) Ground terminal Power check terminal Power relay drive signal output terminal Not used (fixed at "L") SIRCS input from the remote control receiver (IC101) Serial data output to the system controller (IC1201) (rewrite flash memory) Serial data input from the system controller (IC1201) (rewrite flash memory) Clock signal output to the fluorescent display tube Serial data output to the fluorescent display tube Power supply terminal (+5V) Latch signal output to the FL display driver (IC103) Clear signal output to the FL display driver (IC103) OSD clock signal output to the select switch (IC2004) (used for STR-DB940 only) External power regulator capacitor is connected to this terminal OSD serial data output to the select switch (IC2004) (used for STR-DB940 only) Not used (fixed at "L") Not used (open) Not used (fixed at "L") Power supply terminal (+5V) (analog system) Connected to power supply Connected to ground Ground terminal (analog system) Key input terminal (A/D input) (S111 to 118) Key input terminal (A/D input) (S121 to 125) Key input terminal (A/D input) (S131 to 137) Key input terminal (A/D input) (S141 to 149) Ground terminal Key input terminal (A/D input) (S151 to 157) Key input terminal (A/D input) (S161 to 165) Key input terminal Not used (fixed at "L") FM IF signal input from the FM/AM tuner unit (TM301) Stop signal input from the power control (IC1206) Not used (fixed at "L") MD 0 signal input from the system controller (IC1201) MD 1 signal input terminal (fixed at "H" in this set) "H": on
56
Pin No. 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85, 86 87 88 89 90 91, 92 93 94 95 96 97
Pin Name MD2 HW STANDBY RDS CLOCK RDS DATA OSD VSYNC OSD VBLK P/N U-RESET U-SREQ U-MREQ U-DATA U-CLOCK AUBUS-IN SPEAKER-A SPEAKER-B POW-KEY IN AUBUS-OUT VERSION IN 1 VERSION IN 2 VERSION IN 3 VERSION IN 4 VERSION IN 5 VERSION OUT 1 VERSION OUT 2 JOG-UP JOG-DOWN RESET FUNCTION UP FUNCTION DOWN NC VSS XO XI VCC NC LED CLOCK LED DATA LED CE LED CLEAR NC MBUS-V1 MBUS-DVD MBUS-TV MBUS-STATUS 2WAY
I/O I I I I O O I O I O O O I I I I O I I I I I O O I I I I I -- -- O I -- -- I I I I -- I I I I O
Description MD 2 signal input from the system controller (IC1201) Hardware standby signal input to the power control (IC1206) Clock signal input from the RDS decoder (IC1) Data input from the RDS decoder (IC1) Video sync signal output to the video switch (IC2005) (used for STR-DB940 only) Video clock signal output to the video switch (IC2005) (used for STR-DB940 only) NTSC/PAL select signal input terminal "L": NTSC (except AEP and UK models) "H": PAL (AEP and UK models)
Reset signal output to the system controller (IC1201) Slave request signal and data input from the system controller (IC1201) Master request signal output to the system controller (IC1201) Master data output to the system controller (IC1201) Master clock signal output to the system controller (IC1201) Audio bus input terminal Speaker A select signal input terminal Speaker B select signal input terminal Power switch (S150) input terminal "L" is input when this key pressing Audio bus output terminal Setting terminal for version 1 input Setting terminal for version 2 input Setting terminal for version 3 input Setting terminal for version 4 input Setting terminal for version 5 input Setting terminal for version 1 output Setting terminal for version 2 output Jog dial up input terminal (RV102) Jog dial down input terminal (RV102) Reset signal input from the power control (IC1206) Function encoder up input terminal (RV101) Function encoder down input terminal (RV101) Not used (fixed at "L") Ground terminal System clock output terminal (16MHz) System clock input terminal (16MHz) Power supply terminal (+5V) Not used (fixed at "L") LED clock signal input from the LED drive (IC106) LED data input from the LED drive (IC106) LED chip enable signal input from the LED drive (IC106) LED clear signal input from the LED drive (IC106) Not used (fixed at "L") V1 (M BUS) control signal input from the video select switch (IC253) DVD (M BUS) control signal input from the video select switch (IC253) TV (M BUS) control signal input from the video select switch (IC253) STATUS (M BUS) control signal input from the video select switch (IC253) Control A1 on/off control for signal output to the SIRCS driver (IC106) (used for STR-DB940 only)
57
Pin No. 98 99 100
Pin Name LAT RESET OSD LAY
I/O O O O
Description Learning microprocessor latch signal output to the SIRCS driver (IC106) (used for STR-DB940 only) Reset signal output to the SIRCS driver (IC106) (used for STR-DB940 only) Video latch signal output to the video switch (IC2004) (used for STR-DB940 only)
58
SECTION 5 EXPLODED VIEWS
NOTE: · -XX and -X mean standardized parts, so they may have some difference from the original one. · Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE)