Nov.
1998 HP-555G A B C D E F G H I J K L M N O P Q R S T U V CIRCUIT DIAGRAM (FRONT JACK, ANALOG ,INLET) To EQ BOARD HP-535/555G ASSY 71011978 BOARD BOARD (CN1) (CN1) (CN201) PANEL L To MIC To EQUALIZER BOARD PAB3 + R76 15K C64 3.3/50 R208 6.8K R204 6.8K C206 0.068 R212 6.8K C208 0.082 C215 0.33 C212 0.082 R217 6.8K R203 6.8K C204 0.068 2 3 + - IC201A NE5532 1 R210 6.8K 2 3 + - IC202A NE5532 1 R220 680K R207 6.8K R214 6.8K R219 680K BOARD MAIN To TERMINAL SPEAKER To IC202B NE5532 7 C214 0.33 (CN11) CN16 WIRING 01349912 To FDD UNIT 8 4 8 4 2 1 C201 33/16 NE5532 + - NE5532 + - 2 1 C202 33/16 1 1 CN201 10JQ-ST 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 To CN15 PAB3 ANALOG BOARD JK3 F1 INLET BOARD IC201C IC202C Input L(MONO) L(MONO) JK401 FH402 CNT47-0003A CN402 1 1 2 2 3 3 100/117V SB 4A/125V FUSE (ASSY 71011878) 230/240V S506 1.6A/250V FUSE (ASSY 71015456) To R JK4 Output Inlet INL-8 1 2 FH401 CNT47-0003A F1 B2P3-VH 1 1 2 2 3 3 SWITCH To TRANS PRIMARY POWER R C401 4700 CN401 B2P5-VH 4 4 5 5 FRONT JACK BOARD ASSY 71011867 + R301 680 D301 Indicator Power PAB3 To CN301 B8B-PH-K-S 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 ELDR25V ELDR25V ELDR25V R304 33 R310 68 JK302 YKB21-5006 1 2 4 5 L-1384AD/1ID BOARD To CN1 (CN301) PHONES ANALOG BOARD PAB3 + L304 R308 33 R309 68 1 2 3 7 8 + 2 1 C301 33/16 C302 0.01 L302 L303 R305 33 R306 68 2 3 4 5 7 8 Phones To PAB3 + R303 33 R307 68 JK301 YKB21-5006 R319 100 1 JK303 TRANS BOARD (CN501) 8 5 2 3 1 2 D302 1SS133 5 2 4 2 5 4 (FRONT) MIDI In 10 20 SW301C R315 120 M1756 CN302 B9B-PH-K-S L305 ELDR25V SSSF124 22 23 24 25 SW301B To MAIN BOARD (CN9) R320 1K R322 33 SW301A SSSF124 21 26 Computer Switch 2 1 + C306 33/16 12 13 14 15 SSSF124 11 16 JK304 TCS7927-28-401 7 8 5 2 4 1 3 6 12 13 10 11 Computer 9 8 M5M34051P L311 L308 L309 L310 R326 5.6K R318 4.7K R317 10K R329 5.6K ELDR25V ELDR25V ELDR25V ELDR25V ELDR25V ELDR25V L307 L306 WIRING 01349978 D304 MTZJ27C D303 MTZJ27C 1 2 1 2 1 2 1 2 D306 MTZJ27C D307 MTZJ27C 1 2 1 2 D305 MTZJ27C D308 MTZJ27C TO MAIN BOARD (CN10) PIANO ANALOG BOARD 32 C53 N2 15 33-0810 C53 N2 15 13-0610 1 2 34 CB1 N0 1B 5-XH-A 1 2 34 T ME 1R 64 98 2 12 1 A 3 4N J9 749 1111 -P1 0012 12 3 4123456789 2 1 2 3 4123456789111 0012 MM D D S C D D+ + A5 5 0CD 3+ 245 EDSRQ 3 3 QN23 22 22 32 37 P33/1R 3 6.
C1 32 8K A31 7DDR 6 R 6. .1 18 8 DQX ++2 1K K T2 55 RR0 9 33 1 C 3S 3. 31 13 3T 1 2/2 2K KR3 12 83 31.4 613 6E 1K CSC 3 M73 C 39 2/ 31 12 1 9 1/ 16 1 9R 6 1 SS5. 6 S1 8 21 K K6 32 2 0R 6 . 141 8 U S1 K P A5 C 134 D5 670H ADA A+ - + +-+-1 1 1 12 2 2 AA RR 3 KK3 908 8K 99 A AAE 3C+ - 4Q 631 1 13V 132 2 6//C C 41 1C 3 CC 3 1H 67 7 63 E3 69 81 08 / 0C/ 3 319 41 .3Q66 3 2V1H R 6 R6 60A 5. . R5 58 8 .. 5.R53 62 5K K .533 U 3P AC 47P34 +-+-570H CA P6M B95 4CC2 I 5C1 78 54 0A 7C H0+-L + P1 42 +-+ - 1 12 2 AC 0- C 0 .
.2 0 2 01 9 6 8 62 8 8+ A12 F T ME C 31R 36 83 /9 5 11 18 6C 3 R 6.38 1 8 6/6 0 K .1 896 K82 2F AAA LLR 6R 86 91 08 81 0F 10 2R 6 6.2 21 8 80 KC3 KC 35.83 1.8 38/F 5 1 /50 1 10 C 3 3R 5 3 2276 88 6/ /9 8K 1 13 K46 11 6C 6 8R7 6 68 R5 98 80 P76 90 7P 51 2 5 K2ISI SCC T T11 K R 5 K22 694 BA 4K0 1 01 01- .4-0 007 6A A0 82Q 0S1 D6 36 A .26 37 /5C 062 6S 1B 1 66 14 47 7K12 R 5Q K81 Q0 37 21 S5 0 0 6C. 6C 0 AA AR 6 . ..0 15 86 8.
5 06 8 6 55 K8 K7 .3 8 S568D 81 G9 - 12R RL L1 1A B R 3G G L C25 5 1 03Z Z3 4 C 3P0- - 312 2 0A A 6- -1 12 2V V - 12 A2 5 0L R AA 11 2 3 4 5 6 7 8 011 2 34 5 6 7 8 1-C B -018N 1-P9 -- 3V 1 2 2 1 1 2 87654321 87654321 654321 654321 1 2 1 2 4 8 10987654321 1987654321 0 63 913 3 11 428 1 2 1 6 J B 7 1 0 H 1 - --K 0 1 1-S - -3 30 01 10 012 4 12 4 DT C .121 R C 30R 3 C 3 32 3P3 32 1 07 10 02 7 D A R A AD C 3 R 1 1 33 C 1 K/V 6 3 0C 5 2 1 R 1 DS3 1R 1 2B 1 8D 32 932L 37K 6IC1 D C 13 L /7 5Y 7 S A 3 A IC 56C +- A - 7 63 4 2 R I31 UCC 3 52 P63 K3 82 CBP60 0 4C . C . 50 0 C 3 73 3 36 6 3 03 7 P8 8 I U 8 HRC 1P A26 3C KA 64A 570HA 6R 6 ..1 88 R 3 0 3 K 8 A 3 /3 C31 1 1 1/ C 5 8 2 2 2 R 6 .
R 8 8 4K K 64 K4 5 K3 RRC 4435 A 8 7 63 5 U5 I. .6I UIC 9K C K CP 82 9 A 4 C 3 AH 3 5A - 12 0 0CC . .0 065 6 609 8 8 R 1 0 6 52 3 +-+- MM 5I 5 IC 22 14 1 871 A 8 AA 1 C 3 C 33 31 2/ /5 11 16 62 R .1 0 C R 5 3 0 6 C 0 06 R 4 69 C A7 3RR 6 R .R 3 38 8 .4 13 K30 0 3 1 1 6 C2878AA R 5 R 6 C 0 C . .
6 5 58 0 04 8 66 68 8 A AC 3R 3 6 7R C 3 A 33 30 3P A 12 412 40C J H.16 K J HL K1 LJ 27 J71 0 0 F 3 0 1 2 32 GNC RST 5 2 1 2 1 2 1 2 1 1 5 9 1 5 9 117 10 2 1 1 C 3 C 4 B R C 8 1 2 1 P 2 A F 1SS133 Q8 A A 330P 2SC2878A Q15 2SA1015GR 5N P2 -V1 2 3 4 5 H 1 2 3 4 5 CP F F F NU 3A 5 T4/ 7S FB - 0 0E 4 S3 03 ABSA B N 4 F FA H5 HA 7A 6/L 1/ CF F21O N4 352 TG 45 V 4 77 -V 0 0B F C 0 0FC pH 0N H 348O T 4 A447A -00 DR 0 33 SAD BA20DF 4 61 85 - 00/~~ 35M1 2 T CEE + 5PR D D 112 18 516 S6634 B-A A20 + 0.C 065 82 R 6.4 80 K 3 M.3M C/1 52T CSD 0Z 7S2J 2129 3.1 33B2 1S R6K 8 5 D DK3 1 16 +73G 5R AQ 1 2 RQ1 D 11 N2S 02 2S3 21 213A3 1 7S3 SD 16 2 3C 0 R3 .R 48 33.6 60 K9K1 8 66 5A .8 8R K1032 A 33SC1815GR 3AQ 3 2Q1R 1 / S95 1 17 R 1 C C0 6 88 5 17 60 89 3 15GRMT AR 1 2Z5 D6 MK J6 2 9 T0 .1 ZB J91 .1BD2 212 R 1S 52 6C 0S 7 KK 1183 16 -5 3 GG 1R 2R Q 313 - 126 R 6R Q.
88 265 1KK 16 2 32SA1 R 6-0 . 4 81 2 K15 2G QR 10 ECQVE 1C HQ C V 0.C1 1 39 6H 32R 8 0 EE 10 09 CC . K3 QQ 3 VV 11 HH 00 .. 33 33 A AA A R 6R 6 CC 8. 2R 6 2 8 11 00. 5 K 432 K84 K R 1 6 52 31 515 R 6 R 6R RR K +-+- 2K 8 81 11 21 0 00 3M8 11 K KM6 6 58 8 I5 2C0 0I 2 1C 1K K1 8B71 1 8 AA A LL 2S2 Q 1 1S K6K Q363 736 G3 R RG R8 96 3 36R 8 8 2S3 3 33 A101+ + -- 5 G 111 1 R2 2 22 2Q QS3 A 422Q Q1 SS2 50 CC 1 11 5 88 G 11 R 55 3 GG 3 R RAR 0 1(1 A/2 R 3W 32 0) (1/2W) A DR 3.3 3 +4 K 5 1R 06 K5D 1 1S1 S2 133 I HC2 D1 71 4B- LS1 3 02R 6 4. P3 80 K I HC D 41 71 4C LS 504P D+6 5XRST DR 3.7 3 +R 24 K 527 05 3 D D+5A R 1RQ3 R 26N1 027 4 2M1 2K 2S 7 R2A 2701 C 0.
A6 05 1 2 2 25 2 4JYKK6FD 51-+ D 55 0412345678 8 12345678C B8N B1 M-PH- 3 2 1 2 2 1 2 1 1 2 2 1 2 1 2 1 2 1 2 1 2 3 1 2 1 2 2 2 11 2 2 11 2 2 1 1 2 524 T U O CNT47-0003A 6800/35C39 C48 A 0.068 F S51 6D 81 80 G2 C 0C 01 ..
23 00II 64N 66CD 88511 2 AS N56 7 08 81 0 .08 M .0 6G CO1 6 8C2 U 82 2FR 6 7T 5.8 8 35 KA C 334 00 /16A + 12 D9D S51 63 88G UPC4+ 57 01 R I2 RH C1 17 6A5 8 52 9C0 0 - R 151 5 02 7 +-R334K1 C 3C 3 33 54 // 0 19 1 66 D +- IU CP 7C C4570HAM5 I2 C1 18 CAL +-+ - 1 12 2 1 1 D19 1 3 1 128 0 2 II I ICC C C11 1 111 1 1AD E FHH H HDD D D77 7 744 4 4LL L LSS S S00 0 044 4 4PP P P C6 02 .1 D+5 DIHCDR 1717 4G0 L1 SK 04P IC PC10 -9107 6 D2 3 YKF51-D1 5S 01S 38 1133 R 1 JK05 0 50 1 6 1 115 24 3 7 ( PRE eA 1 2 2COM 2 1 2 2 1 2 1 5 9 1 2 1 2 5 91 4 8 7 14 5 8 1 2 4 10 2 9 8 5 1 524 N I 2IN OUT 3 S5688G - 12 1R 55 08 D CNT47-0003AFH1F5 4F C 7H N C 02 T 054 p7-0003A ~ +D D 11 3SBA20 D 13I IC ND I3 C4 U 2P1 2 C24S AA S5 5 C0N 06 6 58 .17 82 1 0H8 29 8 6G FM G 8O1 U2 TF 3C 3 393 03 0 /5 6/1 .36 D- D12 +5 TRAT P AB (CAo ON NB AA N23 LR )ODG BCW NIR 5 O0IN 1G 0 A1349 R990 R 3 R33 33 30 07 C 0 0.
.4 40 01 31 47 6 6+-+- UU PP CC 4I4 CC 585 7B7 47 28 0B 50 H7H AA 680R K31 6R 83 02 K 68R 03 K3 3C 3/4 17 6 3 COM 1 1 1 1 2 4- 3 R 3 98 3 ~ 2C 682 02 0/1 346 C 0.1 08 68 FD S51 64 88G S D 3 3 0 C 0 .
4 0 2 1 7 +- U ICPI C 7 8A 0 HA F3 4+- UIC P8 CA2 4570HA 2 1 2 2COM 1 2 1 2 54321 54321 1 T ME ER P1 1866-A C C 1 7654321 7654321 CN7 K5 I HC 41 71 4C 6XRST R 3.7 3 R4 K 3 D+5 RQ N14 2227 R22701 25JYKK6F51-5048 1 3 D LS 504P 75 IC11B 220 2 22 4 HD74LS04P D R 126 02 2 524 T U O D+5 D+5 M R70 1K 7 2 D1S1S8133 1 115 24 (REA 8 2 524 N I 6 3 1 IC10 PC-910 R50 D+5 D 100 5 1 6 02 .1 IHCD1714GLS04P JK5 14 4 2 5 YKF51-5031 7 1 3 Pe D 6 7 10 9 8 D C47 2 33/16 1 680R K31 6R 83 02 68R 03 K3 K 3- 2 4+ IC8A UPC4570HA F A 7654321 7654321 CN7 R206 R202 6.8K 6.8K R201 C203 R213 65+ NIC E2 50 51 73B 2 R 6.2 80 K6 9.8K 65+ - - 6.8K 0.068 R 6.2 80 K5 R 6.2 81 K1 0C .02 80 27 R 6.2 81 C205 0.068 C211 0.082 R 13 50 02 RQ N30 21 2 327+ + 1 R316 IC302 IC301B 1K 7 2 TC74HC00AF 5 6 6 3 12 4 10 R311 PC-910 T R 1C 537I 02C 4 1H30 C1 0A 0AF 8 TC7IC 4H30 C1 0C 0AF9 3.3K 02 1 2 1 2 3 4 5 6 7 8 9 3 4 5 6 7 8 9 + E R3.332K4 IC1 132 301D TC74HC 100 1AF C3 00 .04 1 L301 R153012 R313 LDR25V 6.8K R 33314 C 0.3 103 TI CC 73 40 H1E C00AF 10C 003 P05 14 + R327 + + R 123 K23 7 10K R325 + IC303 12K 163 21 5 6 4 7 15 14 R328 10K + IN 2 C18 IC2 00/16 0.068 OUT 2COM 2 C12 0.068 1