Service Manual
Page 2
... LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. 2 STR-K790 Power consumption Area code Power consumption US 210 W Canadian 290 VA AEP, UK 220 W Power consumption (during standby mode) 0.3 W Dimensions ...scale. ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! SAFETY-RELATED COMPONENT WARNING!! A battery-operated AC milliammeter. UNLEADED SOLDER Boards requiring use these instruments. 2. A. Nearly all exposed metal parts to let solder bridges occur such as on chip component replacement • ...
... LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY. 2 STR-K790 Power consumption Area code Power consumption US 210 W Canadian 290 VA AEP, UK 220 W Power consumption (during standby mode) 0.3 W Dimensions ...scale. ATTENTION AU COMPOSANT AYANT RAPPORT À LA SÉCURITÉ! SAFETY-RELATED COMPONENT WARNING!! A battery-operated AC milliammeter. UNLEADED SOLDER Boards requiring use these instruments. 2. A. Nearly all exposed metal parts to let solder bridges occur such as on chip component replacement • ...
Service Manual
Page 3
... Diagram - Schematic Diagram - EXPLODED VIEWS 5-1. Rear Panel - Schematic Diagram - DISPLAY Board 31 4-19. DIGITAL Board (4/5 21 4-9. DIGITAL Board (5/5 22 4-10. MAIN Board (4/4 30 4-18. Schematic Diagram - Printed Wiring Boards - Schematic Diagram - Schematic Diagram - MAIN Board 25 4-13. DISPLAY/POWER Section 15 4-3. STR-K790 About area codes The area code of the receiver you purchased is shown on the...
... Diagram - Schematic Diagram - EXPLODED VIEWS 5-1. Rear Panel - Schematic Diagram - DISPLAY Board 31 4-19. DIGITAL Board (4/5 21 4-9. DIGITAL Board (5/5 22 4-10. MAIN Board (4/4 30 4-18. Schematic Diagram - Printed Wiring Boards - Schematic Diagram - Schematic Diagram - MAIN Board 25 4-13. DISPLAY/POWER Section 15 4-3. STR-K790 About area codes The area code of the receiver you purchased is shown on the...
Service Manual
Page 11
Turn MASTER VOLUME jog, there will be test tone sound output from front left speaker of test tone) STR-K790 11 "AD[]-[]xxx" xxx = 0 to start , below display will show: "DCAC[][][]x" x = 1, 2, 3 If there is error happen, below display will show: "ERR[]SD0x" x =...DCAC[]FTM" appears. Afterward, press the DIMMER to 255 (depends on loudness of the receiver and AUTO CAL microphone. DCAC DSP Data Line Checking 2. DCAC board Checking Connect front left speaker, and the display will start DCAC factory test mode. 1. When power off : Press the three buttons MUSIC + DISPLAY +...
Turn MASTER VOLUME jog, there will be test tone sound output from front left speaker of test tone) STR-K790 11 "AD[]-[]xxx" xxx = 0 to start , below display will show: "DCAC[][][]x" x = 1, 2, 3 If there is error happen, below display will show: "ERR[]SD0x" x =...DCAC[]FTM" appears. Afterward, press the DIMMER to 255 (depends on loudness of the receiver and AUTO CAL microphone. DCAC DSP Data Line Checking 2. DCAC board Checking Connect front left speaker, and the display will start DCAC factory test mode. 1. When power off : Press the three buttons MUSIC + DISPLAY +...
Service Manual
Page 13
... of transistor. Parts on the pattern face side seen from the pattern face are omitted. • Circuit Boards Location STANDBY board POWER board DCAC board HEADPHONE board DISPLAY board STR-K790 HDMI SW board (AEP,UK) HDMI BRIDGE board (AEP,UK) DIGITAL board MAIN board • Waveforms - C Q These are in µF unless otherwise noted. (p: pF) 50 WV or less are not indicated...
... of transistor. Parts on the pattern face side seen from the pattern face are omitted. • Circuit Boards Location STANDBY board POWER board DCAC board HEADPHONE board DISPLAY board STR-K790 HDMI SW board (AEP,UK) HDMI BRIDGE board (AEP,UK) DIGITAL board MAIN board • Waveforms - C Q These are in µF unless otherwise noted. (p: pF) 50 WV or less are not indicated...
Service Manual
Page 16
PRINTED WIRING BOARD - No. STR-K790 4-3. DIGITAL BOARD (SIDE A) - • See page 13 for Circuit Boards Location. :Uses unleaded solder. 1 2 3 4 5 6 7 8 A DIGITAL BOARD (SIDE A) R1943 C1913 B C D E STR-K790 R1096 FB1350 R1318 C1315 R1321 R1253 FB1306 IC1301 R1313 R1312 R1311 R1555 C1031 FB1310 C1301 R1557... R1106 R1118 R1117 R1175 R1122 R1123 R1129 R1083 R1124 R1201 FB1308 R1077 R1179 R1180 R1088 R1073 R1072 R1181 R1182 15 DIGITAL BOARD (SIDE B) (Page 17) C1404 FB1403 C1604 R1948 R1156 R1157 C1142 R1460 R1403 R1492 R1411 R1410 C1408 C1362 IC1401 C1415...
PRINTED WIRING BOARD - No. STR-K790 4-3. DIGITAL BOARD (SIDE A) - • See page 13 for Circuit Boards Location. :Uses unleaded solder. 1 2 3 4 5 6 7 8 A DIGITAL BOARD (SIDE A) R1943 C1913 B C D E STR-K790 R1096 FB1350 R1318 C1315 R1321 R1253 FB1306 IC1301 R1313 R1312 R1311 R1555 C1031 FB1310 C1301 R1557... R1106 R1118 R1117 R1175 R1122 R1123 R1129 R1083 R1124 R1201 FB1308 R1077 R1179 R1180 R1088 R1073 R1072 R1181 R1182 15 DIGITAL BOARD (SIDE B) (Page 17) C1404 FB1403 C1604 R1948 R1156 R1157 C1142 R1460 R1403 R1492 R1411 R1410 C1408 C1362 IC1401 C1415...
Service Manual
Page 17
... Ref. Location D1003 D-3 D1004 D-3 D1107 C-6 D1108 C-6 D1110 C-6 D1111 C-7 D1501 C-3 D1502 C-3 D1503 D-3 IC1001 E-3 IC1031 B-7 IC1351 C-2 IC1901 B-7 IC1902 B-5 IC1904 B-6 STR-K790 DIGITAL BOARD (SIDE B) STANDBY BOARD C CNP801 (Page 26) AM TUNER FM 75 COAXIAL AEP,UK HDMI BRIDGE A BOARD CNS199 (Page 23) HS1903 HS1901 CL026 IC1031 CL027 C1032 CL029 CL031 TP1000 JL013 R1078 CNS513 C1172 CL025 C1905...
... Ref. Location D1003 D-3 D1004 D-3 D1107 C-6 D1108 C-6 D1110 C-6 D1111 C-7 D1501 C-3 D1502 C-3 D1503 D-3 IC1001 E-3 IC1031 B-7 IC1351 C-2 IC1901 B-7 IC1902 B-5 IC1904 B-6 STR-K790 DIGITAL BOARD (SIDE B) STANDBY BOARD C CNP801 (Page 26) AM TUNER FM 75 COAXIAL AEP,UK HDMI BRIDGE A BOARD CNS199 (Page 23) HS1903 HS1901 CL026 IC1031 CL027 C1032 CL029 CL031 TP1000 JL013 R1078 CNS513 C1172 CL025 C1905...
Service Manual
Page 21
SCHEMATIC DIAGRAM - DIGITAL BOARD (4/5) - STR-K790 1 2 3 4 5 6 7 8 9 10 11 MAIN BOARD STANDBY (3/4) BOARD A CNP504 D (Page 29) CNP801 C (Page 28) 1 +R2 2 STOP 3 STDBY GND 4 +9V (STDBY) 5 PW_RY 6 +R4 7 R4 GND H/P_RY H/P CTRL C/REAR/SB_RY FRONT_RY PROTECTOR B DIGITAL BOARD (4/5) C 6 2 DIGITAL BOARD (1/5) D (Page 18) DIGITAL BOARD 15 W1000 (1/5) (Page 18) E 56 59 11 58 DIGITAL BOARD 60 (2/5) (Page 19) F +R4 +2.65V/+1.85V D1109 D1108...
SCHEMATIC DIAGRAM - DIGITAL BOARD (4/5) - STR-K790 1 2 3 4 5 6 7 8 9 10 11 MAIN BOARD STANDBY (3/4) BOARD A CNP504 D (Page 29) CNP801 C (Page 28) 1 +R2 2 STOP 3 STDBY GND 4 +9V (STDBY) 5 PW_RY 6 +R4 7 R4 GND H/P_RY H/P CTRL C/REAR/SB_RY FRONT_RY PROTECTOR B DIGITAL BOARD (4/5) C 6 2 DIGITAL BOARD (1/5) D (Page 18) DIGITAL BOARD 15 W1000 (1/5) (Page 18) E 56 59 11 58 DIGITAL BOARD 60 (2/5) (Page 19) F +R4 +2.65V/+1.85V D1109 D1108...
Service Manual
Page 23
...1 2 3 4 5 6 7 8 AEP,UK C5002 C5003 C5004 R5001 R5003 R5011 R5010 R5009 R5008 R5007 R5006 R5005 R5004 A HDMI SW BOARD HDMI DVD IN VIDEO 2/BD IN OUT CN5003 CN5002 CN5001 R5073 1 19 1 19 1 19 R5068 R5020 R5018 B R5043 R5042 R5069 R5019 ...R5055 R5056 R5026 R5072 R5024 R5061 R5060 R5014 R5029 D HDMI BRIDGE BOARD 13 12 CNS199 E 6 CN199 1 A DIGITAL BOARD CNS509 (Page 17) 2 • Semiconductor Location Ref. No. PRINTED WIRING BOARDS - IC5001 IC5002 IC5003 IC5004 IC5005 IC5006 Location C-3 C-4 C-4 B-4 B-4 C-2 1 F STR-K790 B199 1-873-511- 23 23...
...1 2 3 4 5 6 7 8 AEP,UK C5002 C5003 C5004 R5001 R5003 R5011 R5010 R5009 R5008 R5007 R5006 R5005 R5004 A HDMI SW BOARD HDMI DVD IN VIDEO 2/BD IN OUT CN5003 CN5002 CN5001 R5073 1 19 1 19 1 19 R5068 R5020 R5018 B R5043 R5042 R5069 R5019 ...R5055 R5056 R5026 R5072 R5024 R5061 R5060 R5014 R5029 D HDMI BRIDGE BOARD 13 12 CNS199 E 6 CN199 1 A DIGITAL BOARD CNS509 (Page 17) 2 • Semiconductor Location Ref. No. PRINTED WIRING BOARDS - IC5001 IC5002 IC5003 IC5004 IC5005 IC5006 Location C-3 C-4 C-4 B-4 B-4 C-2 1 F STR-K790 B199 1-873-511- 23 23...
Service Manual
Page 24
..., UK only) - • See page 37 for IC Block Diagrams. AEP,UK VIDEO 2/BD IN STR-K790 HDMI SW BOARD R5047 0 R5068 100k TP5016 R5016 0 R5017 0 CN5001 19P CN5002 19P R5048 0 R5069 100k R5018 1k R5019 0 R5020 0 C5002 0.01 TP5001 C5011 0.01 C5003 0.01 C5004 0.... BRIDGE BOARD CN199 7P 1 2 CL199 3 4 5 6 CNS199 13P 13 12 11 10 9 8 7 6 5 4 3 2 1 HDMI 6.8V S1(HDMI) GND(NC) OED(HDMI) PRE(HDMI) CTL(HDMI) COMP MUTE HDMI 6.8V S2(HDMI) S1(HDMI) OED(HDMI) PRE(HDMI) CTL(HDMI) COMP_S2 COMP_S1 V_SW1 V_SW2 V_SW3 V_SW4 A DIGITAL BOARD (1/5) CNS509 (Page 18) 24 24 SCHEMATIC DIAGRAM - STR-K790...
..., UK only) - • See page 37 for IC Block Diagrams. AEP,UK VIDEO 2/BD IN STR-K790 HDMI SW BOARD R5047 0 R5068 100k TP5016 R5016 0 R5017 0 CN5001 19P CN5002 19P R5048 0 R5069 100k R5018 1k R5019 0 R5020 0 C5002 0.01 TP5001 C5011 0.01 C5003 0.01 C5004 0.... BRIDGE BOARD CN199 7P 1 2 CL199 3 4 5 6 CNS199 13P 13 12 11 10 9 8 7 6 5 4 3 2 1 HDMI 6.8V S1(HDMI) GND(NC) OED(HDMI) PRE(HDMI) CTL(HDMI) COMP MUTE HDMI 6.8V S2(HDMI) S1(HDMI) OED(HDMI) PRE(HDMI) CTL(HDMI) COMP_S2 COMP_S1 V_SW1 V_SW2 V_SW3 V_SW4 A DIGITAL BOARD (1/5) CNS509 (Page 18) 24 24 SCHEMATIC DIAGRAM - STR-K790...
Service Manual
Page 25
... Q604 Location H-8 G-8 G-8 G-7 E-13 G-11 H-11 H-11 H-11 G-12 G-12 G-11 G-9 H-9 H-9 H-10 Ref. 4-12. MAIN BOARD - • See page 13 for Circuit Boards Location. :Uses unleaded solder. STR-K790 Ver. 1.1 1 A B C DCAC E BOARD CN2001 (4pin-6pin) (Page 33) D DIGITAL F BOARD CNS501 (Page 17) E DIGITAL G F BOARD CNS502 (Page 17) G H 2 3 4 5 6 7 8 9 10 11 12 13 14 15 SA-CD/CD AUDIO IN...
... Q604 Location H-8 G-8 G-8 G-7 E-13 G-11 H-11 H-11 H-11 G-12 G-12 G-11 G-9 H-9 H-9 H-10 Ref. 4-12. MAIN BOARD - • See page 13 for Circuit Boards Location. :Uses unleaded solder. STR-K790 Ver. 1.1 1 A B C DCAC E BOARD CN2001 (4pin-6pin) (Page 33) D DIGITAL F BOARD CNS501 (Page 17) E DIGITAL G F BOARD CNS502 (Page 17) G H 2 3 4 5 6 7 8 9 10 11 12 13 14 15 SA-CD/CD AUDIO IN...
Service Manual
Page 26
... D921 D922 D923 Location D-3 E-2 E-2 E-2 E-2 E-2 E-2 B-4 C-4 B-4 B-4 Q901 D-3 Q911 D-3 STANDBY BOARD - • See page 13 for Circuit Boards Location. :Uses unleaded solder. 1 2 3 4 STANDBY BOARD A CNP904 C800 B901 FH952 F901 FH902 B AC IN C US,CND D E R900 G901 C911 CNP900 JW901 T902... JW912 R905 1 JW910 7 CNP801 1-872-417- PRINTED WIRING BOARD - CNP906 5 6 MAIN N BOARD CNP907 (Page 25) MAIN M BOARD CNP902 (Page 25) MAIN BOARD O CNP916 (Page 25) C DIGITAL BOARD CNP505 (Page 17) STR-K790 26 26 7 8 T901 POWER TRANSFORMER • Semiconductor Location Ref...
... D921 D922 D923 Location D-3 E-2 E-2 E-2 E-2 E-2 E-2 B-4 C-4 B-4 B-4 Q901 D-3 Q911 D-3 STANDBY BOARD - • See page 13 for Circuit Boards Location. :Uses unleaded solder. 1 2 3 4 STANDBY BOARD A CNP904 C800 B901 FH952 F901 FH902 B AC IN C US,CND D E R900 G901 C911 CNP900 JW901 T902... JW912 R905 1 JW910 7 CNP801 1-872-417- PRINTED WIRING BOARD - CNP906 5 6 MAIN N BOARD CNP907 (Page 25) MAIN M BOARD CNP902 (Page 25) MAIN BOARD O CNP916 (Page 25) C DIGITAL BOARD CNP505 (Page 17) STR-K790 26 26 7 8 T901 POWER TRANSFORMER • Semiconductor Location Ref...
Service Manual
Page 27
...; See page 36 for IC Block Diagram. STR-K790 DCAC B BOARD CN2001 (7pin to 9pin) (Page 34) J400 SAT AUDIO IN CNP733 3P ... 100P CC54 100P R451 1k R402 1k R452 1k R403 1k R453 1k R404 1k R454 1k CNP501 15P STR-K790 F DIGITAL BOARD (3/5) CNS501 (Page 20) CNP502 11P G DIGITAL BOARD (5/5) CNS502 (Page 22) 20 MAIN BOARD (3/4) TP1 (Page 29) 0 0 0 0 0 0 0 0 0 0 C484 0.1 -7 0.9 0.9 C402 10 50V C452 10 50V 0 0 0 0...C592 0.68 R596 6.8k WOOFER AMP C593 0.033 R597 220k (Page 30) (Page 29) 27 27 (Page 28) CNP732 3P E DCAC BOARD CN2001 (4pin to 6pin) (Page 34) No mark:FM
...; See page 36 for IC Block Diagram. STR-K790 DCAC B BOARD CN2001 (7pin to 9pin) (Page 34) J400 SAT AUDIO IN CNP733 3P ... 100P CC54 100P R451 1k R402 1k R452 1k R403 1k R453 1k R404 1k R454 1k CNP501 15P STR-K790 F DIGITAL BOARD (3/5) CNS501 (Page 20) CNP502 11P G DIGITAL BOARD (5/5) CNS502 (Page 22) 20 MAIN BOARD (3/4) TP1 (Page 29) 0 0 0 0 0 0 0 0 0 0 C484 0.1 -7 0.9 0.9 C402 10 50V C452 10 50V 0 0 0 0...C592 0.68 R596 6.8k WOOFER AMP C593 0.033 R597 220k (Page 30) (Page 29) 27 27 (Page 28) CNP732 3P E DCAC BOARD CN2001 (4pin to 6pin) (Page 34) No mark:FM
Service Manual
Page 29
STR-K790 (Page 27) TP2 20 MAIN BOARD (1/4) (Page 27) (Page 30) POWER AMP IC701 STK350-530T-E 37 -37 37 1 -1 37 -0.2 -0.2 37 1.1 -1 37 -0.2 -0.2 R700 47k C701 4.7 50V R701 1k C702 R702 100p 68k ... RR14 10 CC14 0.01 RR15 10 CC15 0.01 RR16 10 CC16 0.01 TM604 R479 2.2k CNP504 5P L SURROUND R SPEAKERS IMPEDANCE USE 6-16 SUB WOOFER D DIGITAL BOARD (4/5) CNP506 (Page 21) No mark:FM STR-K790 29 29 MAIN BOARD (3/4) - SCHEMATIC DIAGRAM - 4-16.
STR-K790 (Page 27) TP2 20 MAIN BOARD (1/4) (Page 27) (Page 30) POWER AMP IC701 STK350-530T-E 37 -37 37 1 -1 37 -0.2 -0.2 37 1.1 -1 37 -0.2 -0.2 R700 47k C701 4.7 50V R701 1k C702 R702 100p 68k ... RR14 10 CC14 0.01 RR15 10 CC15 0.01 RR16 10 CC16 0.01 TM604 R479 2.2k CNP504 5P L SURROUND R SPEAKERS IMPEDANCE USE 6-16 SUB WOOFER D DIGITAL BOARD (4/5) CNP506 (Page 21) No mark:FM STR-K790 29 29 MAIN BOARD (3/4) - SCHEMATIC DIAGRAM - 4-16.
Service Manual
Page 30
STR-K790 Ver. 1.1 4-17. MAIN BOARD (4/4) - (Page 27) IC501 STK350-530T-E 37 POWER AMP 37 1 -1 37 -0.2 -0.2 -0.2 -0.2 37 -1 1 37 R500 47k C501 4.7 50V R501 1k C500 2.2 100V C502 100p R502 68k C551 4.7 ... 680 1W R793 82 RY502 RELAY 12V D791 1SS133T-72 0.7 R791 2.2k 0.1 Q509 2SC1740S-QRT RELAY DRIVE CN701 4P J HEADPHONE BOARD CNP790 (Page 34) TM602 RR11 10 RR12 10 RR13 10 CC11 0.01 CC12 0.01 CC13 0.01 TM602 FRONT SPEAKERS IMPEDANCE USE 6-16 CENTER No mark:FM STR-K790 30 30 SCHEMATIC DIAGRAM -
STR-K790 Ver. 1.1 4-17. MAIN BOARD (4/4) - (Page 27) IC501 STK350-530T-E 37 POWER AMP 37 1 -1 37 -0.2 -0.2 -0.2 -0.2 37 -1 1 37 R500 47k C501 4.7 50V R501 1k C500 2.2 100V C502 100p R502 68k C551 4.7 ... 680 1W R793 82 RY502 RELAY 12V D791 1SS133T-72 0.7 R791 2.2k 0.1 Q509 2SC1740S-QRT RELAY DRIVE CN701 4P J HEADPHONE BOARD CNP790 (Page 34) TM602 RR11 10 RR12 10 RR13 10 CC11 0.01 CC12 0.01 CC13 0.01 TM602 FRONT SPEAKERS IMPEDANCE USE 6-16 CENTER No mark:FM STR-K790 30 30 SCHEMATIC DIAGRAM -
Service Manual
Page 31
STR-K790 1 2 3 4 5 6 7 8 A DISPLAY BOARD CL125 B K CN101 R198 POWER CL128 BOARD CL127 CNP102 (Page 33) JW111 CL121 CL120 FL101 FLUORESCENT INDICATOR TUBE R199 JW150 JW118 JW127 JW113 JW142 JW117 JW108 C I JW104 JW105 MAIN BOARD CN104 CL119 CNP908 (Page 25) JW107 D JW112 CNP102 JW110 JW106 JW128...CL106 CL107CL108 CL109 CL110 CL111 CL112 CL113 CL114 CL115 CL116 CL117 CL118 CL105 H DIGITAL BOARD CNS513 (Page 17) JW135 JW134 JW147 JW146 TP100 11 1-872-420- (11) STR-K790 31 31 4-18. PRINTED WIRING BOARD - DISPLAY BOARD - • See page 13 for Circuit...
STR-K790 1 2 3 4 5 6 7 8 A DISPLAY BOARD CL125 B K CN101 R198 POWER CL128 BOARD CL127 CNP102 (Page 33) JW111 CL121 CL120 FL101 FLUORESCENT INDICATOR TUBE R199 JW150 JW118 JW127 JW113 JW142 JW117 JW108 C I JW104 JW105 MAIN BOARD CN104 CL119 CNP908 (Page 25) JW107 D JW112 CNP102 JW110 JW106 JW128...CL106 CL107CL108 CL109 CL110 CL111 CL112 CL113 CL114 CL115 CL116 CL117 CL118 CL105 H DIGITAL BOARD CNS513 (Page 17) JW135 JW134 JW147 JW146 TP100 11 1-872-420- (11) STR-K790 31 31 4-18. PRINTED WIRING BOARD - DISPLAY BOARD - • See page 13 for Circuit...
Service Manual
Page 32
... I (Page 34) 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DISPLAY BOARD FL101 FLUORESCENT INDICATOR TUBE 2 R199 2.2 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 ... 4 +3.3V(STDBY ) 5 +5V 6 VOL_JOG_2A 7 VOL_JOG_2B 8 PW_SW 9 SIRCS 10 AD2 11 AD1 12 FL_LAT 13 FL_DI N 14 FL_CLK 15 INPUT_JOG_4A 16 INPUT_JOG_4B 17 DCAC_IN I MAIN BOARD (2/4) CNP908 (Page 28) H DIGITAL BOARD (4/5) CNS513 (Page 21) CNP102 2P 1 DCAC_IN (CN2001) 2 DC-CONTROL (CN2001) L DCAC BOARD CN2001 (Page 34) No mark : FM STR-K790 32 32 SCHEMATIC DIAGRAM - STR-K790 4-19.
... I (Page 34) 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DISPLAY BOARD FL101 FLUORESCENT INDICATOR TUBE 2 R199 2.2 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 ... 4 +3.3V(STDBY ) 5 +5V 6 VOL_JOG_2A 7 VOL_JOG_2B 8 PW_SW 9 SIRCS 10 AD2 11 AD1 12 FL_LAT 13 FL_DI N 14 FL_CLK 15 INPUT_JOG_4A 16 INPUT_JOG_4B 17 DCAC_IN I MAIN BOARD (2/4) CNP908 (Page 28) H DIGITAL BOARD (4/5) CNS513 (Page 21) CNP102 2P 1 DCAC_IN (CN2001) 2 DC-CONTROL (CN2001) L DCAC BOARD CN2001 (Page 34) No mark : FM STR-K790 32 32 SCHEMATIC DIAGRAM - STR-K790 4-19.
Service Manual
Page 33
... MUSIC S119 11 1-872-421- (11) TP790 4 J MAIN BOARD CN701 (Page 25) CNP790 1 11 1-872-423- (11) J790 PHONES STR-K790 33 33 PRINTED WIRING BOARDS - STR-K790 1 2 3 A POWER BOARD B C S152 D JW123 JW122 JW121 E F G JW124 JW126 JW125 4 5 6 7 8 9 CNP152 1 3 JW157 S114 DIMMER R135 S115 R136 S116 SLEEP 2CH K DISPLAY BOARD CN101 (Page 31) 10 11 12 13 14 15...
... MUSIC S119 11 1-872-421- (11) TP790 4 J MAIN BOARD CN701 (Page 25) CNP790 1 11 1-872-423- (11) J790 PHONES STR-K790 33 33 PRINTED WIRING BOARDS - STR-K790 1 2 3 A POWER BOARD B C S152 D JW123 JW122 JW121 E F G JW124 JW126 JW125 4 5 6 7 8 9 CNP152 1 3 JW157 S114 DIMMER R135 S115 R136 S116 SLEEP 2CH K DISPLAY BOARD CN101 (Page 31) 10 11 12 13 14 15...
Service Manual
Page 36
DIGITAL Board - IC1452 PCM1602APT ML MC MDI MDO ZERO8 DATA4 ZERO7 NC VCC1 AGND1 VCC2 AGND2 RST 37 SCKI 38 SCKO 39 BCK 40 LRCK 41 TEST ... 2 2Y 3 GND 4 8 Vcc 7 1Y 6 2B 5 2A ZERO1/GPO1 ZERO2/GPO2 ZERO3/GPO3 ZERO4/GPO4 ZERO5/GPO5 ZERO6/GPO6 NC NC VOUT6 VOUT5 VOUT4 VOUT3 - MAIN Board - DAC LEVEL DELTA- IC400 M61542FP 56 55 54 53 RECR2 RECL2 RECR1 RECL1 52 LIGO 51 LVIN 50 LVC 49 LOUT 48 ROUT 47 RVC... SLOUT 40 SLOUT 39 SLC 38 SLVIN 37 SLIGO 36 CIGO 35 CVIN 34 CVC 33 COUT 32 SWOUT 31 SWC 30 SWVIN 29 SWIGO STR-K790 -
DIGITAL Board - IC1452 PCM1602APT ML MC MDI MDO ZERO8 DATA4 ZERO7 NC VCC1 AGND1 VCC2 AGND2 RST 37 SCKI 38 SCKO 39 BCK 40 LRCK 41 TEST ... 2 2Y 3 GND 4 8 Vcc 7 1Y 6 2B 5 2A ZERO1/GPO1 ZERO2/GPO2 ZERO3/GPO3 ZERO4/GPO4 ZERO5/GPO5 ZERO6/GPO6 NC NC VOUT6 VOUT5 VOUT4 VOUT3 - MAIN Board - DAC LEVEL DELTA- IC400 M61542FP 56 55 54 53 RECR2 RECL2 RECR1 RECL1 52 LIGO 51 LVIN 50 LVC 49 LOUT 48 ROUT 47 RVC... SLOUT 40 SLOUT 39 SLC 38 SLVIN 37 SLIGO 36 CIGO 35 CVIN 34 CVC 33 COUT 32 SWOUT 31 SWC 30 SWVIN 29 SWIGO STR-K790 -
Service Manual
Page 38
DISPLAY Board - STR-K790 - IC100 PT6315 VSS VDD GRID1 GRID2 GRID3 GRID4 SEG24/GRID5 SEG23/GRID6 SEG22/GRID7 SEG21/GRID8 SEG20/GRID9 LED1 1 LED2 2 LED3 3 LED4 4 4-bit latch 44 ...
DISPLAY Board - STR-K790 - IC100 PT6315 VSS VDD GRID1 GRID2 GRID3 GRID4 SEG24/GRID5 SEG23/GRID6 SEG22/GRID7 SEG21/GRID8 SEG20/GRID9 LED1 1 LED2 2 LED3 3 LED4 4 4-bit latch 44 ...
Service Manual
Page 39
...programming O for FLASH programming I EEPROM data signal input terminal O EEPROM clock signal output terminal I Input selector Encoder (A) signal input I Vacs control input STR-K790 39 Ground terminal I RDS signal detect input (AEP, UK only) I MODEL select input I Input selector Encoder (B) signal input - Not used (... Function key push signal input I Tuning encoder input (not used ) I Version setting input terminal (DESTINATION) - • IC Pin Function Description DIGITAL BOARD IC1101 MB90F045PF-G-9033-SPE1 (SYSTEM CONTROLLER) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ...
...programming O for FLASH programming I EEPROM data signal input terminal O EEPROM clock signal output terminal I Input selector Encoder (A) signal input I Vacs control input STR-K790 39 Ground terminal I RDS signal detect input (AEP, UK only) I MODEL select input I Input selector Encoder (B) signal input - Not used (... Function key push signal input I Tuning encoder input (not used ) I Version setting input terminal (DESTINATION) - • IC Pin Function Description DIGITAL BOARD IC1101 MB90F045PF-G-9033-SPE1 (SYSTEM CONTROLLER) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 ...
