Marantz SR4000 Service Manual - Page 28

7B-4 7B-4 TUNER BOARD ECO5 / Systems 1 2 3 4 5 6 7 8 A 1101 y 2 T001 FM 300 OHM 1 A B C FM 50 OHM 1102 x T002 1 2 T003 6103 1N4148 6104 1N4148 3106 10k 9128 y Service Solution for Local/DX - switching remove 9100 2105 6101 100p BA484 9119 4156 4155 9114 D AM FRAME AERIAL MW/LW-RF 1103 T005 2 T006 1 E B F G LW=high 3108 w 2k2 LW P0 7105 w BC338-40 MW=high 3109w 4k7 2108 w 100p 2109 w 10p 7104 w BC338-40 P0 5102 2 1 MW 6 5 3 4 5103w 4 3 2 6 1 4102 u 2106 3-11p w_4-20p 2104 100p 100p (if 1102 is used) 47p (if 1101 is used) C 9101 3105 220R T009 FM-RF REF Q-MULTIPLIER 7102 2SA838B 5131 6105 2 1 7 MW HN1V02H 3101 33k s_5k6 3110 FM-OSCILLATOR 47R 1 5 4101u 2107 1u 2102 10n H I J K L Vdd Vdd 3123 w 4k7 3125w P0 10k 7109w M BC858B LW=high 3128 w 2k2 3180w 22k N 1 2 3 4 5 6 7 8 2152 33n s_560p 6130 t_2p2 15p s_12p 5130 2159 33p 3102 100k 6131 1SV228 2154 x 4p7 2155 3-11p printed 2103 1n printed 2101 3120 6106 0R 1N4148 3103 18k t_18k 9 10 11 12 13 14 15 16 17 18 19 20 21 AM-IF1 5111 T046 4 3 450 kHz 6 1 4105x 3119t 330R 2150 100n 5113 z T013 SFU450B 2 4104x FM-IF1 5109 3104 7119t 180R 2SC1047 AM-IF2 5112 3 4 E 450 kHz 1 6 2 T014 FM-IF2 5110 3175z 2k7 AM-IF to 1130,1131 AM Stereo module VERSION PROGRAMMING COMPONENTS /00 FM/MW/LW /00 FM/MW/LW/SW-Eu /01 FM/MW-Stereo /01 FM/MW /01 FM/MW/SW-Ov /06 FM-Japan/MW-stereo /13 FM/MW-Stereo 6120 3156 3157 3170 remark A x - - - 7111 - - - - not mounted - - x - SW - x - x - x - - B - - - x - - x - SW 2111t 100p 3113t 1k T044 2128 10u to 3103 REF 2129 100u 2165 100n 0.7V 0.15V 0.7V 44 43 42 AM Det. RF-GND AGC FM-In T043 2.1V1 Ripple AGC 0V 2 AM-RF AM IF AM Frontend 1.4V 1.4V 1V 41 40 39 AM MIXER CONTROL 0V 3 FM-RF AGC AM OSC FM F 4 RF-GND Frontend FM 0V 5 FM-OSC. FM MIXER OSC Prescaler Multiplexer 0V 6 AM-OSC. VSTABA VSTABB AGC Vcc1 T040 8V 7 Vcc1 Ripple Vcc2 STABILIZER Vdd 1.4V 38 VSTABA AM IF AM DET FM DET 0.7V 37 FM IF1 FM IF2 AM-IF1-in AM Mixout FM Mixout FM-IF1 in AM-IF2 FM-IF2 T047 1.4V 0.7V 1.4V 36 35 34 2149 22n VSTABB FM-IF2 33 0.7V 5114 3 AM-AFC 32 1.4V T015 1 AGC P1 31 P0 30 CONTROL Write 29 Enable DATA 28 T037 2161 x T032 100n 2163 x 100n CLOCK 27 2145 VCO 3142 3141 100k 56k 8 I-TUNE 1.3V 9 VCO 1V Charge Pump 7101 TEA5757 z_TEA5759 T012 0.7V 10 AF-Out 2127 1.2V 11 MPX-IN 220n STEREO DECODER Mono/ Stereo AFC 26 Dig.GND 5121 2167 XTAL OSC. 25 75KHz 12p 1.3V 3169 2166 150k Mono/ 24 stereo 0.3V 1n Stereo mono 4.9V Vdd Vcc2 23 8V Vdd Fieldstrength Indic. FM-Demod. AFCAFC+ 2126 330p 4103 LPF MUTE left FILTER PILOT right IF GND 12 0.8V 13 0.7V 14 0.7V 15 0.7V 16 1V 17 0.1V 18 1V 19 1.2V 20 1.2V 21 2V 22 11V 2141 T016 100n 2142 T017 100n T042 T041 CDA10.7MG61KA 2u2 2138 3179z 3143r 22k 2131 470n 2132 3145 2k2 470n 2133 1u Vcc1 3176r 1k 7103 r BC858C 3144r 1k buffer amplifier MPX to 1121 5119 4 3 2 6 1 DISCRIMINATOR 2168 2139 82p 15p 5120 3171 (2140) 2164 330R 470n 3140 150R 2 3140 and 5120 provisional as alternative 3147 z 3M3 2140 exchanged by 2164 (SMD type 0805) from layout stage 3317.9 onwards respectively 3103 303 3380.1 and 3103 308 3396.1 3178z 3M3 7125 z BC848C 1M AM-OSCILLATOR T011 220p 2146 220p 2147 220p 2148 22n 3170 100k 3157 100k 3158 470R AM-AFC 450 kHz P1 Programmable Output Ports P0 /14 FM-OIRT/MW/LW /14 FM-OIRT/MW /17 FM/AM-Stereo /17 FM/AM /.. FM/MW/2xSW /15 FM/MW/SW-Eu x - x x x - x - - - x - SW C x - - x - - x x - x x x x = component mounted SW = Software initialisation D 5V 150kHz, 50mVpp 1121 r 1 GND 0V stereo mono stereo 3161 T020 MPX 2 MPX 470R from 3144 1126 E 0.3V 3 1 enable to/from CONTROL BOARD 3160 T021 470R 3159 T022 470R 0.2V 4 2 data 5 3 clock 3 T023 stereo 0.5V 6 4 mono 4.9V stereo F to/from COMBI BOARD / Source Selector part P1 3156 100k 7111 BC848C version detection 6120 1N4148 Vcc1 8V 3167 220R T024 1124 1 left T025 2 GND 4 G T026 3 right T027 (11 - 14V) 4 Vcc typ. 12V 22n 2130 Vdd T018 3155 8V 470R z_100R H 3152 470R 3153 470R 1u 2144 2143 3177z 3146 6107 220n T045 3154 150R BZX79-C11 10k 1130 1131 z z T030 1 V+ 22R T031 2 stereo I 3 STSIG Low=AM mono 4 P0 VCO-kill 2137 x T033 5 R-out 220n 2135 x T034 6 L-out J 220n T035 7 L-FM to/from AM-stereo module 2136 15n_y22n 2134 15n_y22n HN1V02H 3 6 T036 8 R-FM 6105 5 9 P1 +FM T038 10 GND K T039 11 AM-IF AM-IF 4106 3132 4108 47R 9117 u 5123 4 6 MW 3 2 1 7122 w BC848C 5122w 4 6 LW 3 2 1 9 10 11 2122 w 3n3 2123 w 390p 2158 10p_w 2125 560p 3134 22k 2120 22p w_27p 7124w BC848C 3137 w 22k P0 MW=high 2160u 22n 12 13 14 6105 1 2 3 4 Chip jumper 8 7 6 41.. 5 HN1V02H 15 16 L Signal path r....for RDS version only s...for East European version (/14/34) only t....for Japanese version (/06/26) only u...for 2-band (FM/AM) version only v...for SW-version 3.9-12.1MHz only w...for LW only x....not for all versions y....for USA version (/17/37) only z....for AM-STEREO (/06/13/26/33) versions only 17 18 19 FM AM MPX (Audio Frequency) M AF - left/right Vdc FM mode stereo V Vdc MW mode V EVM V Vdc LW mode N Voltages measured while set is tuned to a strong transmitter ECO5 systems, discr.coil, 030998 20 21 1101 A 1 1102 B 2 1103 D 2 1121 E20 1124 G20 1126 E20 1130 I20 1131 I20 2101 C 6 2102 G 7 2103 D 9 2104 B 6 2106 F 5 2107 G 6 2108 G 3 2109 G 3 2111 C13 2120 L11 2122 N11 2123 M11 2125 M11 2126 G 9 2127 G10 2128 C11 2129 C 9 2130 H17 2131 I10 2132 I10 2133 H11 2134 J17 2135 J18 2136 J17 2137 J18 2138 H12 2139 H13 2140 H14 2141 H14 2142 H14 2143 I17 2144 H17 2145 G16 2146 F15 2147 F16 2148 F16 2149 C15 2150 B13 2152 F 7 2153 E 8 2154 E 7 2155 D 8 2158 M11 2159 F 9 2160 M12 2161 D16 2163 E16 2164 H14 2165 C 9 2166 G16 2167 F16 2168 I 13 3101 E 7 3102 E 7 3103 C 8 3104 B11 3105 C 7 3108 E 3 3109 F 2 3110 F 6 3113 C13 3119 B13 3120 C 6 3123 M 7 3125 M 6 3128 M 8 3132 L 9 3134 M12 3137 M13 3140 I13 3141 G10 3142 G 9 3143 I10 3144 I10 3145 H10 3146 I17 3147 I15 3152 H18 3153 H19 3154 H18 3155 H17 3156 G17 3157 F17 3158 F18 3159 F18 3160 E18 3161 E18 3167 G18 3169 G15 3170 F17 3171 H15 3175 B16 3176 J 9 3177 I18 3178 I15 3179 I16 3180 M7 4101 G 5 4102 F 5 4103 G 9 4104 B13 4105 B11 4106 K12 4108 L 9 5102 E 4 5103 F 4 5109 B13 5110 B14 5111 A13 5112 A15 5113 B12 5114 C16 5119 I 12 5120 H13 5121 F15 5122 M11 5123 L11 5130 E 8 5131 D 8 6103 C 2 6104 C 3 6105 K12 6105 E 6 6106 C 6 6107 H17 6120 G16 6130 E 7 6131 D 7 7101 G11 7102 D 8 7103 I 9 7104 E 3 7105 F 2 7109 M 7 7111 F18 7119 B13 7122 M 9 7124 M13 7125 I16 9100 B 4 9101 C 6 9117 L10 9128 A 4