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Technics SA-DX950 Service Manual
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Technics SA-DX950 Service Manual

Av control stereo receiver
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SPECIFICATIONS
FM Tuner Section
Frequency range
Sensitivity
50 dB quieting sensitivity
MONO
STEREO
Total harmonic distortion
MONO
STEREO
S/N
MONO
STEREO
Frequency response
Alternate channel selectivity
Capture ratio
Image rejection at 98 MHz
Spurious response rejection at 98 MHz
AM suppression
Stereo separation
1 kHz
Order No. MD0102029C1
AV Control Stereo Receiver
87.9-107.9 MHz
11.2 dBf (2
18.3 dBf (4.5
38.3 dBf (45
20 Hz-15 kHz, +1 dB, -2 dB
1
SA-DX950
(K) ... Black Type
P ... U.S.A.
PC ... Canada
V, IHF'58)
V, IHF'58)
V, IHF'58)
0.2%
0.3%
73 dB
67 dB
65 dB
1.5 dB
40 dB
75 dB
50 dB
40 dB
A2
Color

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Summary of Contents for Technics SA-DX950

  • Page 1 Order No. MD0102029C1 AV Control Stereo Receiver SA-DX950 Color (K) ... Black Type P ... U.S.A. PC ... Canada SPECIFICATIONS FM Tuner Section Frequency range 87.9-107.9 MHz Sensitivity 11.2 dBf (2 V, IHF’58) 50 dB quieting sensitivity MONO 18.3 dBf (4.5 V, IHF’58)
  • Page 2 10 kHz 30 dB Antenna terminal (unbalanced) AM Tuner Section Frequency range 530-1710 kHz Sensitivity V, 330 Selectivity 55 dB IF rejection (at 1000 kHz) 50 dB Video Section Output voltage at 1 V input 1±0.1 Vp-p (unbalanced) Maximum input voltage 1.5 Vp-p Input/output impedance Amplifier Section...
  • Page 3 PHONO 47 k CD, TAPE, DVD, TV, VCR 22 k Tone controls BASS 50 Hz, +10 to -10 dB TREBLE 20 kHz, +10 to -10 dB Subwoofer frequency response (-6 dB) 7 - 200 Hz Digital input Optical Coaxicial General Power supply AC 120 V, 60 Hz Power consumption...
  • Page 4 barriers, insulation papers, shields, etc. 5. Before returning the serviced equipment to the customer, be sure to make the following insulation resistance test to prevent the customer from being exposed to a shock hazard. - Insulation Resistance Test 1. Unplug the power cord and short the two prongs of the plug with a jumper wire.
  • Page 6 2. Before Repair and Adjustment Disconnect AC power, discharge Power Supply Capacitors C1702 through a 10 , 5 W resistor to ground. DO NOT SHORT-CIRCUIT DIRECTLY (with a screw driver blade, for instance), as this may destroy solid state devices. After repairs are completed, restore power gradually using a variac, to avoid over current.
  • Page 7 off and then on again. 4. Accessories AC power supply cord... 1 pc. AM Loop Antenna Set / ... 1 set. FM Indoor Antenna... 1 pc. Remote Control / Transmitter... 1 pc. 5. Front Panel Controls 5.1. Front Panel...
  • Page 8 5.2. Remote Control...
  • Page 9 6. Operation Checks and Main Component Replacement Procedures “ATTENTION SERVICER” Some chassis components maybe have sharp edges. Be careful when diassembling and servicing. 1. This section describes procedures for checking the operation of...
  • Page 10 the major printed circuit boards and replacing the main components. 2. For reassembly after operation checks or replacement, reverse the respective procedures. / Special reassembly procedures are described only when required. 3. Select items from the following index when checks or replacement are required.
  • Page 11 Step 3 Remove all the screws. Step 4 Release the connector CN904B.
  • Page 12 Step 5 Remove all the screws. Step 6 & 7 Remove all the screws.
  • Page 13 Step 8 Remove all the Selector knob and Volume knob. Unscrew the nut and remove all the Selector ring and Volume ring. Step 9 Remove all the screws and the rear panel in the direction of the arrow. Step 10 Release the connectors CN702 and CN1000A. Pull up the Digital P.C.B. as shown.
  • Page 14 Step 11, 12 & 13 Remove all the screws. Reconnect all wires and connectors to test all P.C.B.. 6.2. Main Component Replacement Procedures 6.2.1. Replacement of the Power IC and Regulator Transistor Step 1 Remove the top cabinet.
  • Page 15 Step 2 Cut the joints as shown below. (6 joints)
  • Page 16 Step 3 Fold the joints. (6 joints) Step 4 Desolder the terminals of Power IC and Regulator Transistor.
  • Page 17 Step 5 Remove all the screws. 6.2.2. Installation of the bottom cover after replacement...
  • Page 18 Step 1 Upset the bottom cover. Step 2 Align the ribs of bottom cover into the bugs. Step 3 Prepare the screws to fix the bottom cover. 7. Type Illustrations of ICs, Transistors & Diodes 8. Terminal Functions of ICs - IC901 (C2BBGF000262) MICRO COMPUTER...
  • Page 19 Mark I/O Function KEY1~KEY2 I Key Input 1~2 RDS_CLK - RDS Data IC CLOCK RDS_DO - RDS Data IC - DATA OUT RDS_DI - RDS Data IC - DATA IN RDS_CE - Control of RDS IC(Not used, open) THERM/OVLD1 I Thermal/Over load input 1 THERM/OVLD2 I Thermal/Over load input 2 I SD signal detect input IF DATA...
  • Page 20 TAPE_LED O Tape Selector LED VCR_LED O VCR Selector LED TV_LED O TV Selector LED DVD_LED O DVD Selector LED CD_LED O CD Selector LED TUNER_LED O TUNER Selector LED PHONO_LED O PHONO Selector LED DIGITAL_LED O DIGITAL INPUT LED DVD_6CH_LED O DVD 6CH LED LIMITTER O Power limitter control...
  • Page 21 9. Block Diagram 10. Schematic Diagram (All schematic diagrams may be modified at any time with the development of new technology.) Notes: S950 Power Switch S951 Speaker A Switch S955 Memory Switch S956 FM Mode Switch S957 Band Switch S958 Preset Switch S959 Tuning Up Switch...
  • Page 22 parts shown in the parts list. Caution! IC, LSI and VLSI are sensitive to static electricity. Secondary trouble can be prevented by taking care during repair. - Cover the parts boxes made of plastics with aluminium foil. - Put a conductive mat on the work table. - Ground the soldering iron.
  • Page 24 13. Parts Location and Replacement Parts List Notes: - Important safety notice: Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardant...
  • Page 25 (resistors), high-quality sound (capacitors), low-noise (resistors), etc. are used. When replacing any of these components, be sure to use only manufacturers’s specified parts shown in the parts list. - The parenthesized indications in the Remarks column specify the areas or color. (Refer to the cover page for area or color.) Parts without these indications can be used for all areas.
  • Page 26 13.1.2. Cabinet Parts List...
  • Page 27 Ref. No. Part No. Part Name & Description Remarks CABINET AND CHASSIS RAN0001MM TUNER RGB0031-A TECHNICS BADGE RGK0995-2S SELECTOR RING RGK1337-S VOLUME RING RGL0533-Q DIGITAL LIGHT GUIDE RGL0534-Q MONITOR LIGHT GUIDE RGP0843-K FRONT PANEL RGR0306B-A REAR PANEL [M]P RGR0306B-B REAR PANEL...
  • Page 28 Ref. No. Part No. Part Name & Description Remarks P.C.B. REP3107B-T DIGITAL P.C.B. [M](RTL) REP3106C-M MAIN P.C.B. [M](RTL)P REP3106D-M MAIN P.C.B. [M](RTL)PC REP3104B-S PANEL, S-VIDEO P.C.B. [M](RTL) REP3106C-M PHONO EQ P.C.B. [M](RTL)P REP3106D-M PHONO EQ P.C.B. [M](RTL)PC RAN0001MM TUNER PACK P.C.B. [M](RTL) REP3104B-S SWITCH, HEADPHONE P.C.B.
  • Page 29 Ref. No. Part No. Part Name & Description Remarks Q551 2SD1915FTA TRANSISTOR Q552 2SD1915FTA TRANSISTOR Q553 2SD1915FTA TRANSISTOR Q554 2SD1915FTA TRANSISTOR Q555 2SD1915FTA TRANSISTOR Q556 2SD1915FTA TRANSISTOR Q557 2SD1915FTA TRANSISTOR Q560 RVTDTA114EST TRANSISTOR Q601 RVTDTA143XST TRANSISTOR Q602 RVTDTA143XST TRANSISTOR Q603 RVTDTA143XST TRANSISTOR Q604...
  • Page 30 Ref. No. Part No. Part Name & Description Remarks D602 RK306LFU1 DIODE D605 RVD1SS133TA DIODE D611 RVD1SS133TA DIODE D612 RVD1SS133TA DIODE D613 RVD1SS133TA DIODE D614 RVD1SS133TA DIODE D617 RVD1SS133TA DIODE D618 MTZJ15CTA DIODE D651 1N5402BM21 DIODE D652 1N5402BM21 DIODE D701 1N5402BM21 DIODE D702...
  • Page 31 Ref. No. Part No. Part Name & Description Remarks D939 SLR325MCT31 DIODE D940 SLR325YCT31 DIODE D944 SLR325MCT31 DIODE D1705 UDZSTE176R2B DIODE VARIABLE RESISTORS VR901 K9AA012A0002 VR ROTARY ENCODER VR902 RRV16B24104G VR VOLUME ENCODER VR903 K9AA012A0002 VR ROTARY ENCODER SWITCHES S950 EVQ21405R SW POWER S951...
  • Page 32 Ref. No. Part No. Part Name & Description Remarks COILS & TRANSFORMERS L602 RLQYR73MW-E CHOKE COIL L603 RLQYR73MW-E CHOKE COIL L604 RLQYR73MW-E CHOKE COIL L651 RLQYR73MW-E CHOKE COIL L652 RLQYR73MW-E CHOKE COIL L701 RLQT801M-W CHOKE COIL L751 RLQB101KTA-Y CHOKE COIL L901 RLQB101KTA-Y CHOKE COIL...
  • Page 33 Ref. No. Part No. Part Name & Description Remarks XBA1C80NBAL FUSE XBA1C80NBAL FUSE XBA1C80NBAL FUSE XBA1C16NBAU FUSE XBA1C40NBAL FUSE FUSE HOLDERS FC701 EYF52BC FUSE HOLDER FC702 EYF52BC FUSE HOLDER FC705 EYF52BC FUSE HOLDER FC706 EYF52BC FUSE HOLDER FC707 EYF52BC FUSE HOLDER FC708 EYF52BC FUSE HOLDER...
  • Page 34 W600 RWJ1805250SS WIRE...
  • Page 35 Ref. No. Part No. Part Name & Description Remarks W601 RWJ1804150SX WIRE W602 RWJ1803090SS WIRE W701 RWJ1812520SS WIRE W702 RWJ1803300SX WIRE W752 RWJ1803180SS WIRE W906 RWJ1805150SS WIRE W908 REZ1372 EARTH WIRE RESISTORS R351 ERJ3GEYJ750V 75 1/16W R352 ERJ3GEYJ750V 75 1/16W R353 ERJ3GEYJ750V 75 1/16W...
  • Page 36 Ref. No. Part No. Part Name & Description Remarks R450 ERDS1FVJ560T 56 1/2W R451 ERDS2TJ224T 220K 1/4W R452 ERDS2TJ224T 220K 1/4W R453 ERDS2TJ821T 820 1/4W R454 ERDS2TJ821T 820 1/4W R455 ERDS2TJ563T 56K 1/4W R456 ERDS2TJ563T 56K 1/4W R457 ERDS2TJ271T 270 1/4W R458 ERDS2TJ271T 270 1/4W...
  • Page 37 Ref. No. Part No. Part Name & Description Remarks R610 ERDS2TJ470T 47 1/4W R611 ERDS1FVJ100T 10 1/2W R612 ERDS1FVJ100T 10 1/2W R613 ERDS2TJ182T 1.8K 1/4W R614 ERDS2TJ182T 1.8K 1/4W R615 ERDS2TJ681T 680 1/4W R616 ERD25FVJ820T 82 1/4W R617 ERD25FVJ820T 82 1/4W R618 ERD25FVJ820T 82 1/4W...
  • Page 38 Ref. No. Part No. Part Name & Description Remarks R685 ERDS2TJ154T 150K 1/4W R687 ERDS2TJ154T 150K 1/4W R688 ERDS2TJ154T 150K 1/4W R698 ERDS2TJ182T 1.8K 1/4W R699 ERDS2TJ182T 1.8K 1/4W [M]P R705 ERDS2TJ472T 4.7K 1/4W [M]PC R706 ERDS2TJ102T 1K 1/4W [M]P R707 ERD25FVJ221T 220 1/4W...
  • Page 39 Ref. No. Part No. Part Name & Description Remarks R939 ERDS2TJ271T 270 1/4W R940 ERDS2TJ271T 270 1/4W R946 ERDS2TJ151T 150 1/4W R950 ERDS2TJ102T 1K 1/4W R951 ERDS2TJ222T 2.2K 1/4W R952 ERDS2TJ152T 1.5K 1/4W R953 ERDS2TJ182T 1.8K 1/4W R954 ERDS2TJ222T 2.2K 1/4W R955 ERDS2TJ332T 3.3K 1/4W...
  • Page 40 Ref. No. Part No. Part Name & Description Remarks R1039 ERJ3GEYJ104V 100K 1/16W R1040 ERJ3GEYJ102V 1K 1/16W R1041 ERJ3GEYJ330V 33 1/16W R1042 ERJ3GEYJ330V 33 1/16W R1043 ERJ3GEYJ470V 47 1/16W R1044 ERJ3GEYJ470V 47 1/16W R1045 ERJ3GEYJ470V 47 1/16W R1046 ERJ3GEYJ102V 1K 1/16W R1047 ERJ3GEYJ1R5V 1.5 1/16W...
  • Page 41 Ref. No. Part No. Part Name & Description Remarks R1234 ERJ3GEYJ682V 6.8K 1/16W R1235 ERJ3GEYJ102V 1K 1/16W R1236 ERJ3GEYJ472V 4.7K 1/16W R1237 ERJ3GEYJ101V 100 1/16W R1238 ERJ3GEYJ183V 18K 1/16W R1239 ERJ3GEYJ222V 2.2K 1/16W R1240 ERJ3GEYJ102V 1K 1/16W R1241 ERJ3GEYJ102V 1K 1/16W R1242 ERJ3GEYJ183V 18K 1/16W...
  • Page 42 Ref. No. Part No. Part Name & Description Remarks R1405 ERJ3GEYJ473V 47K 1/16W R1406 ERJ3GEYJ473V 47K 1/16W R1407 ERJ3GEYJ103V 10K 1/16W R1408 ERJ3GEYJ103V 10K 1/16W R1409 ERJ3GEYJ103V 10K 1/16W R1410 ERJ3GEYJ473V 47K 1/16W R1411 ERJ3GEYJ473V 47K 1/16W R1412 ERJ3GEYJ473V 47K 1/16W R1413 ERJ3GEYJ102V 1K 1/16W...
  • Page 43 Ref. No. Part No. Part Name & Description Remarks R1689 ERDS2TJ270T 27 1/4W R1690 ERDS2TJ270T 27 1/4W R1691 ERDS2TJ270T 27 1/4W R1692 ERDS2TJ270T 27 1/4W R1693 ERDS2TJ270T 27 1/4W R1694 ERDS2TJ270T 27 1/4W R1695 ERDS2TJ102T 1K 1/4W R1696 ERDS2TJ102T 1K 1/4W R1699 ERDS2TJ332T 3.3K 1/4W...
  • Page 44 Ref. No. Part No. Part Name & Description Remarks C415 ECBT1H103KB5 0.01 50V C416 ECBT1H103KB5 0.01 50V C417 ECA1CAK100XB 10 16V C418 ECA1CAK100XB 10 16V C435 ECBT1H104KB5 0.1 50V C451 ECA1HAK4R7XB 4.7 50V C452 ECA1HAK4R7XB 4.7 50V C453 ECBT1H101KB5 100P 50V C454 ECBT1H101KB5 100P 50V...
  • Page 45 Ref. No. Part No. Part Name & Description Remarks C652 ECA1JAM330XB 33 63V C653 ECBT1H821KB5 820P 50V C654 ECBT1H821KB5 820P 50V C657 ECCR1H100KC5 10P 50V C658 ECCR1H100KC5 10P 50V C661 ECQV1H473JZ3 0.047 50V C662 ECQV1H473JZ3 0.047 50V C666 ECA1EAM101XB 100 25V C667 ECEA2AN2R2SB 2.2 100V...
  • Page 46 C914 ECA1HAK100XB 10 50V...
  • Page 47 Ref. No. Part No. Part Name & Description Remarks C915 ECA0JAK101XB 100 6.3V C916 ECBT1H103KB5 0.01 50V C917 ECA1CAK100XB 10 16V C918 ECBT1H471KB5 470P 50V C919 ECBT1H471KB5 470P 50V C921 ECBT1H331KB5 330P 50V C922 ECBT1H331KB5 330P 50V C923 ECBT1H331KB5 330P 50V C924 ECBT1H331KB5 330P 50V...
  • Page 48 Ref. No. Part No. Part Name & Description Remarks C1048 ECUVNC104ZFV 0.1 16V C1049 ECUV1H102KBV 1000P 50V C1050 ECUV1H102KBV 1000P 50V C1051 ECUV1H152KBV 1500P 50V C1052 ECUV1E103KBV 0.01 25V C1053 ECUVNC104ZFV 0.1 16V C1070 ECA1EPXS470B 47 25V C1201 ECUV1H103KBV 0.01 50V C1202 ECUV1A224KBV 0.22 10V...
  • Page 49 Ref. No. Part No. Part Name & Description Remarks C1280 ECUV1H221KBV 220P 50V C1281 ECUV1H331KBV 330P 50V C1302 ECUV1H103KBV 0.01 50V C1303 ECUVNC104ZFV 0.1 16V C1305 ECUV1H103KBV 0.01 50V C1306 ECUVNC104ZFV 0.1 16V C1307 ECUV1H103KBV 0.01 50V C1308 ECUVNC104ZFV 0.1 16V C1309 ECUVNC104ZFV 0.1 16V...
  • Page 50 Ref. No. Part No. Part Name & Description Remarks C1526 ECA1CAK100XB 10 16V C1527 ECA1CAK100XB 10 16V C1528 ECUV1H103KBV 0.01 50V C1529 ECEA1CKN100B 10 16V C1530 ECEA1CKN100B 10 16V C1531 ECUV1H391JCV 390P 50V C1532 ECA1CAK100XB 10 16V C1533 ECUV1H151JCV 150P 50V C1681 ECBT1H103KB5 0.01 50V...
  • Page 51 A5 : AM LOOP ANTENNA / Printed in Singapore / M010200001FLE/H/K/J/D/N...
  • Page 52 J804 J149 CN402 JK402 5 6 7 1 2 3 4 5 6 R426 J138 R402 J325 R425 J137 J615 R423 J136 R418 J320 C403 R401 R420 R416 5 6 7 8 C418 R422 R406 IC402 IC401 C412 J303 C417 4 3 2 1 C411 R417...
  • Page 53 PANEL P.C.B. (REP3104B-S) VOLU CN904A R928 J116 J117 VR902 INPUT SELECTOR D944 D938 J363 J364 VR901 J345 J365 S965 J346 J347 J118 Q901 J333 J366 DIGITAL J115 J114 J332 R921 C991 Z901 1 3 2 D904 Q902 R968 C907 D940 S966 S971 S970...
  • Page 54 VOLUME J117 J314 J315 J316 VR902 J317 VR903 J102 J318 J319 J320 J333 C994 J114 C993 J311 R994 J332 CF901 R993 J312 J113 J313 J106 C902 J321 R923 C903 R953 J322 S963 S955 S962 J323 J324 IC901 J112 MEMORY HELP/RESET R922 DSP SOUND MODE C908...
  • Page 55 SWITCH P.C.B. (REP3104B-S) J124 R950 W906 1 2 3 4 5 HEADPHONE P.C.B. FRONT SPEAKER A P.C.B. (REP3104B-S) (REP3106C-M...P) (REP3106D-M...PC) FRONT HEADPHONE SPEAKERS HP601 1 2 3 4 CN907...
  • Page 56 TRANSFORMER P.C.B. (REP3106C-M...P) (REP3106D-M...PC) F3 125V 8.0A FC706 FC705 J971 R751 T751 (SUB TRANSFORMER) C753 Z751 C751 Q753 D756 C755 J863 J861 C757 J862 J166 J165 Q754 C754 R755 POWER P.C.B. (REP3106C-M...P) (REP3106D-M...PC)
  • Page 57 SCHEMATIC DIAGRAM - 1 : -B SIGNAL LINE : MAIN SIGNAL LINE : +B SIGNAL LINE DIGITAL CIRCUIT R1203 C1204 2.2K 0.01 R1212 C1215 R1219 C1205 R1205 R1209 LS CH 3.3K 50V10 R1204 3.3K R1341 16V33 2.2K R1210 R1213 RS CH 1.5K R1206 C1202...
  • Page 58 SCHEMATIC DIAGRAM - 2 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE DIGITAL CIRCUIT R1452 R1451 R1358 1.8K 4.7K R1353 C1348 R1351 R1354 1.5K R1345 50V4.7 6.8K C1451 100K 50V4.7 R1347 C1345 R1454 100K 50V4.7 6.8K IC1302 C1410 R1349...
  • Page 59 SCHEMATIC DIAGRAM - 3 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE DIGITAL CIRCUIT R1413 R1414 <14.18V> 28 27 26 25 24 23 22 21 20 19 18 17 16 IC1402 IC1402 IC1452 TC9482F NJM2060MTE1 VOLUME CONTROL OP AMP C1481 50V4.7...
  • Page 60 SCHEMATIC DIAGRAM - 4 : +B SIGNAL LINE DIGITAL CIRCUIT R1023 /EMOE C1042 1000P C1006 C1040 R1042 25V330 IC1003 CDINV SN74LV244APW CONVERTER <2.44V> <0V> <0V> <2.46V> CDINV SCDIN AUDATA1 SDIN2 <1.28V> <0V> CCLKV SCCLK SDIN1 AUDATA2 <2.3V> <5.01V> <0V> <0V> <1.48V>...
  • Page 61 SCHEMATIC DIAGRAM - 5 : MAIN SIGNAL LINE : +B SIGNAL LINE DIGITAL CIRCUIT LS_DSP C1232 4700P OVL/ERR R1055 1K R1056 1K R1057 1K R1058 1K R1059 1K C1233 4700P L1004 RLQM2R2KT2-W C1011 RS_DSP 6.3V100 C1234 16V33 AOUT3 R1060 1K AOUT2 <2.38V>...
  • Page 62 SCHEMATIC DIAGRAM - 6 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE DIGITAL CIRCUIT R1234 C1237 6.8K 330P R1247 C1261 R1242 R1236 C1240 50V4.7 4.7K 2700P R1235 C1231 16V33 R1231 IC1230 R1232 IC1231 R1238 C1239 R1249 2700P 6.8K R1233...
  • Page 63 SCHEMATIC DIAGRAM - 7 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE PANEL CIRCUIT MAIN CIRCUIT MAIN CIRCUIT MAIN CIRCUIT (CN903)ON (CN902)ON (CN901)ON SCHEMATIC SCHEMATIC SCHEMATIC DIAGRAM-10 DIAGRAM-10 DIAGRAM-9 CP903 CP902 CP901 9 10 FL901 RSL0312-F 10 11 12 13 14 15 16 17 18 19 20 21 22 23 C930 330P...
  • Page 64 SCHEMATIC DIAGRAM - 8 : +B SIGNAL LINE PANEL CIRCUIT DIGITAL CIRCUIT (CN904B)ON SCHEMATIC DIAGRAM-6 CN904A 9 10 11 12 13 14 15 16 17 18 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 VR901 INPUT D938-D939,D944...
  • Page 65 SCHEMATIC DIAGRAM - 9 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE : FM/AM SIGNAL LINE PHONO EQ CIRCUIT (W402) ON SCHEMATIC DIAGRAM-12 MAIN CIRCUIT CN401 CN402 TU_R DT_9162 +14V CK_9162 R425 R426 R423 28 27 26 25 24 23 22 21 20 19 18 C403...
  • Page 66 SCHEMATIC DIAGRAM - 10 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE MAIN CIRCUIT IC651 C583 16V10 MAIN_SLIN R593 2.7K R550 <0V> 20 19 12 11 <-16.37V> 8.2K R671 R583 Q553 220(P) R553 C535 270(PC) <0V> R545 680K <0V>...
  • Page 67 SCHEMATIC DIAGRAM - 11 : +B SIGNAL LINE : -B SIGNAL LINE : MAIN SIGNAL LINE MAIN CIRCUIT CENTER SPEAKER R662 R CH SURROUND RL601-RL604 SPEAKERS R661 C662 RSY0013M-0 0.047 L CH RL603 JK603 R664 C661 0.047 L652 W600 RLQYR73MW-E R618 L651 D613...
  • Page 68 SCHEMATIC DIAGRAM - 12 : +B SIGNAL LINE : -B SIGNAL LINE : FM/AM SIGNAL LINE TUNER UNIT ON SCHEMATIC DIAGRAM-13 PHONO EQ CIRCUIT CP101 R461 R463 +14V 180K C459 R459 C461 C463 PH_L_ 0.022 6800P 50V4.7 -14V C451 R453 C455 50V4.7 1000P...
  • Page 69 SCHEMATIC DIAGRAM-13 :FM SIGNAL LINE :AM SIGNAL LINE Z101TUNER UNIT(RAN0001MM) :+ B SIGNAL LINE :FM OSC SIGNAL LINE :AM OSC SIGNAL LINE 2SC2059 FM MIXER IFT1 2SK360 0 - 220 JK101 RF AMP FM ANT 2SC2413 BUFFER AMP AM ANT AM ANT AM OSC 0.47...
  • Page 70 :POSITIVE VOLTAGE LINE :FM SIGNAL LINE :AM SIGNAL LINE :AM OSC SIGNAL LINE :FM/ AM SIGNAL LINE 470K 100P 470K 1000P DTA114 2SC2413 2SC2413 POWER SUPPLY (FM:ON) FM IF AMP FM IF AMP 3.3K 2SC2712 BUFFER AMP LA1844 FM/AM IF AMP, DET/AM OSC,MIX/FM MPX 50V1 470K...
  • Page 71 IC401 TC9163AN BUFFER AMP 3(26) TUNER FROM IC901 MODULE IC451 AN6558F 2(27) PHONO JK401 EQ AMP PHONO 4(25) JK402 Q401 (Q402) 5(24) JK404 BUFFER VCR RO 6(23) JK405 DVD LCH 7(22) JK403 TV LCH S301 8(21) JK404 VCR PB 9(20) IC402 NJM4580DD JK402...
  • Page 72 IC1203 NJM4580MTE1 IC1201 NJM2060MTE1 JK1301 BUFFER 21(22) A OUT1(2) (OPTICAL) JK1303 DIGITAL (OPTICAL) JK1302 IC1002 IC1521(IC1522) CS4226-KQG (OPTICAL) NJM2115MTE1 DIGITAL ANALOG CONVERTER A OUT6 A OUT5 23(24) A OUT6 Q1001 SWITCH X1001 (12.288MHz) IC1005 SN74HCU04APW INVERTER IC1006 SNAHC1U04DBV OSCILLATOR IC1003 SN74LV244APW INTREQ CONVERTER...
  • Page 73 SW CONT. DATA C_CH IC1301,IC1302 NJM2060MTE1 SW_CH OP AMP 5(24) 7(22) LS_CH 6(23) IC1451 NJM4580MTE1 3(26) 4(25) 2(27) IC1230 IC1401 NJM2060MTE1 TC9162AF ANALOG FUNCTION SWITCH Q556 Q560 OP AMP MUTING REGULATOR SWITCH JK406 SUBWOOFER Q557 MUTING SWITCH RESET IC901 CS4226_RESET C2BBGF000262 OVL/ERR CS4226_OVLERR...
  • Page 74 SW_OUT 1 dB SW_IN LATCH 8 dB LATCH C_OUT Q551 1 dB (Q552) C_IN MUTING LATCH SWITCH 8 dB LATCH IC1452 9(20) SL_OUT NJM2060MTE1 1 dB 10(19) SL_IN LATCH OP AMP 8 dB 11(18) LATCH Q555 4(25) MUTING 1 dB SWITCH LATCH 8 dB...
  • Page 75 IC601 RSN310R37-P POWER AMP HIC SENS+ AMUTE PASS+ D601 +HOUT SP A IN1- SP B H.P.F IN2- S/C SP L.P.F H.P.F IN3- PASS- D602 -HOUT VDLIM SENS- Q652 RELAY CONTROL DISP IHDET L.P.F D617 Q604 SWITCH S301 KEY SWITCH AMUTE AF MUTE SP A SP A...
  • Page 76 HP601 HEADPHONES Q1681 (Q1682) HP MUTING JK602 Q601 RL601 FRONT D611 SPEAKER(A) RELAY DRIVE Q602 JK601 RL602 D612 FRONT RELAY SPEAKER(B) DRIVE JK603 SURROUND SPEAKER Q603 RL603 D613 RELAY DRIVE Q605 SWITCH RL604 D614 JK603 CENTER SPEAKER Q751 D755 RELAY DRIVE Q754 RL751...
  • Page 77 C2BBGF000262 (80p) RSN313H25-P NJM2279MTE1 SNAHC1U04DBV BA25BC0FP AN6558F CS49326-CLR (40p) NJM2115MTE1 CS4226-KQG (44p) NJM4580DD NJM4580MTE1 NJM2060MTE1 TC9163AN RSN310R37-P TC9162AF (28p) SN74LV244APW (20p) 2SD2137PQTA TC9482F (28p) SN7AHCT244PW (20p) 2SK2880CTA 2SB621AQSTA 2SA1534AQRTA 2SD1915FTA 2SB1548PQAU DTA114YETL 2SD592AQSTA 2SC3940AQSTA 2SD2374PQAU SLR325MCT31 MA167ATA 2SA933SQRSTA 1SS355TE17 1N5402BM21 SLR325YCT31 2SC1740SSTA UDZSTE176R2B...
  • Page 78 DIGITAL P.C.B. (REP3107B-T) (SIDE A) DIGITAL P.C.B. (REP3107B-T) (SIDE B)
  • Page 79 MAIN P.C.B. (REP3106C-M...P) (REP3106D-M...PC) J149 J122 CN401 CN402 J347 C701 J808 J819 J333 1 2 3 4 5 6 7 1 2 3 4 5 6 J104 J123 J147 J907 J124 J833 R623 J136 J340 R622 J345 R420 J348 J105 R621 R546 J633...