HP-335 Nov.
1998 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) HP-335/KR-375 EQ BOARD ASSY 71011978 BOARD BOARD PANEL L To MIC To To EQUALIZER BOARD PAB3 R76 C64 C206 0.068 C212 0.082 R208 6.8K R204 6.8K C204 0.068 2 3 + - IC201A NE5532 1 R212 6.8K R210 6.8K C208 0.082 C215 0.33 2 3 R217 6.8K + - IC202A NE5532 1 R203 6.8K R207 6.8K R214 6.8K R220 68K To SPEAKER To IC202B NE5532 7 R219 68K BOARD MAIN (CN11) TERMINAL C214 0.33 CN16 NON CONNECT 2 1 C201 33/16 + - 8 4 + - 8 4 2 1 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 To PAB3 ANALOG BOARD NE5532 IC201C IC202C NE5532 C202 33/16 CN201 10JQ-ST CN15 L(MONO) F1 INLET BOARD CN402 Input Output L(MONO) Inlet JK401 1 2 FH402 CNT47-0003A B2P3-VH 1 1 2 2 3 3 100/117V SB 4A/125V FUSE (ASSY 71011878) 230/240V S506 1.6A/250V FUSE (ASSY 71015456) To SWITCH POWER R R INL-8 FH401 CNT47-0003A F1 1 1 2 2 3 3 4 4 To TRANS PRIMARY C401 4700 CN401 B2P5-VH 5 5 FRONT JACK BOARD ASSY 71011867 + R301 680 1 2 D301 Indicator Power To CN1 (CN301) PAB3 To PHONES 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 4 5 L-1384AD/1ID BOARD ANALOG BOARD PAB3 + L304 L303 R308 33 R309 68 1 2 3 7 8 + 2 1 C301 33/16 C302 0.01 L302 R303 33 R305 33 R306 68 R307 68 2 3 4 5 7 8 Phones To PAB3 R302 150 Q301 RN2227 3 2 1 + R316 1K + + IC302 JK301 YKB21-5006 R319 100 1 JK303 TRANS BOARD (CN501) 2 3 5 6 IC301B TC74HC00AF 4 7 6 8 5 2 3 1 2 D302 1SS133 5 2 4 2 5 4 MIDI In (FRONT) IC301A TC74HC00AF R321 150 1 10 8 IC301C TC74HC00AF 9 R311 3.3K 10 PC-910 20 SW301C R315 120 M1756 CN302 B9B-PH-K-S 1 1 2 2 SSSF124 SW301B To MAIN BOARD (CN9) 3 3 4 4 5 5 6 6 7 7 8 8 R324 3.3K IC301D TC74HC00AF 12 13 11 C304 0.01 L305 ELDR25V R320 1K R322 33 22 23 24 25 SSSF124 21 26 9 9 + ELDR25V L301 R312 150 14 7 IC301E TC74HC00AF R313 6.8K R314 33 2 1 + C306 33/16 12 13 14 15 SW301A 11 16 Computer Switch R328 10K + + C303 0.1 + + C305 1000P R323 12K JK304 TCS7927-28-401 SSSF124 + R327 10K 16 3 5 4 15 12 IC303 R325 12K 2 1 6 7 14 13 10 11 7 8 5 2 4 1 3 6 Computer 9 8 L311 L309 L310 M5M34051P R326 5.6K ELDR25V ELDR25V ELDR25V ELDR25V ELDR25V ELDR25V L308 L307 L306 D304 MTZJ27C R318 4.7K 1 2 R317 10K 1 2 D306 MTZJ27C R329 5.6K 1 2 D305 MTZJ27C TO MAIN BOARD WIRING 01349978 (CN10) D303 MTZJ27C 1 2 1 2 D307 MTZJ27C 1 2 D308 MTZJ27C PIANO ANALOG BOARD 23 C53( NC 2 1N 5 331 -) 0810 C5( 3 NC 2N 15 11 3) -0610 1 2 34 (C CBN 1 N2 0 10 B 51 -) XH-A 1 2 34 T ME 1R 64 98 + 15K 2 3 1.
23/50 1 A 3 H1 KC B3 L4 44N J9 749 1111 -P1 0012 1 2 3 4123456789 2 1 2 3 4123456789111 0012 MM D D S C D D+ + A5 5 0CD 3+ 245 SRQ 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 3 31 C 3S 3. 31 113 3T 1 2/2 2K KR 3 12 83 31.4 61 3 6E 1 K 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 1345 370H ADA A+ - + 1 1 1 +-+-2 2 2 AA RR 3 KK3 908 8K 99 A AAE 3C+ - 4Q 61 1 13V 132 2 6//C C 41 1C 3 CC 3 5H 67 7 63 E3 69 81 08 / 0C/ 3 319 41 .3Q66 3 2V1H R 6 R 6 60A 5. . R5 58 8 ... 5.R53 62 5K K .533 U 3P AC 47P34 +-+-570H CA 6M B95 CC2 I AC1 48 54A 7C 0+-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 KC 3 KC 35.8 3 1.8 38 /F 5 1 /50 1 10 C 3 3R 5 3 2276 88 6/ /9 8K 1 13 K46 11C 66 8R7 66 8 R5 98 80 P76 90 7P 51 2 5 K2S II SCC T T11 K R 5 K22 694 BA 4K0 1 01 01- .4-0 007 A A0 8Q 2 0S1 D6 36 A .26 37 /5C 062 6S 1B 1 66 14 47 7K12 R 5Q K81 Q0 37 21 S5 0 0. RC 6C 0 AA AR 6 . .0 156 8.
5 06 8 6 558 K7 .3 8 S568D 81 G9 - 12R RL L1 1A B R 3G G L C25 5 1 03Z Z 3 4 C 3P0- - 312 2 0A A 6- -1 12 2V V - 12 A2 5 8L R AA 2711 2 3 4 5 6 7 8 011 2 3 4 5 6 7 8 -C B 018N -P9 3-V 1 2 2 1 1 2 87654321 87654321 654321 654321 1 2 1 2 4 8 10987654321 1987654321 0 3 13 6 9 3 11 428 1 2 1 6 H K L 3 J B 7 1 0 H 1 - --K 0 1 1-S - -3 30 01 10 012 DT C .121 ED 30R 3 3P3 32 10 02 D AD C 3 1 33 1 K/V 6 0C 5 2 1 DS3 1R 1 2B 32 932L 37K 6IC1 D C 13 L /7 5Y 7 S IC 56C +- - 1 2 I31 UCC 3 52 P63 K3 CBP60 0 4C . C . 30 0 73 3 36 6 03 7 P8 8 64A 6R 6 ..1 88 R 3 0 3 K 8 A /3 3 C31 1 1/ C 1 8 2 2 6R 88 4KK K4 RRC 4435 .6I UIC - 12 0 0CC .
.0 065 6 609 8 8 R 1 0 R .1 0 C R 5 3 0 6 C 0 06 R 4 69 A 67 1 6 R 6 C 0 C . . 6 5 58 0 04 8 66 68 8 A 40C . H16 F 1 2 32 GNC RST 5 1 2 1 5 9 1 5 9 11 107 4 12 4 R C C 3 32 1 07 7 A R A R C 3 R 1 1 8D A 7 63 4 R 82 5C 3 I U 8 HRC 1P A26 3C KA 570HA 3 1 2 R 64 5 K3 8 7 63 5 5 I.
9K C KP 82 9 C 3H 3 5A 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 C RR 6 R R 38 8 .4 13 30 0 3 1 C2878AA R 5 AC 3R 3 6 7R C 3 33 C0P 12 412 J K JL K1 J 0 2 1 2 1 2 1 2 1 1 C 3 C 4 B 1 2 1 A D6 A A UPC4570HA 3.3K 6.8K A A330P HLJ7101-01-3 2 A F 1SS133 Q8 A A 330P 2SC2878A Q15 2SA1015GR C B5N 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 H5A H7A 6/L 1/ F F21O 4 352G 5 V 47V 0 B 0F C FC pH N H48O T 4447A -00 DR 0 33 SAD BA20DF 415 - ~~M1 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 R 3 .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 2SQ2 1 1S K6K Q363 736 G3 R RG R8 96 63 3R 8 8 2S3 3 33 A101+ + -- 5 G 111 1 R2 2 22 2Q QS3 A 42Q Q2 1 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 6XRST R 3.7 3 R 24 K 27 05 3 D D+5A RRQ3 R 6N1 27 4 2M1 2K 2S 7 R 2A 27 01 C 0.
A6 05 1 2 2 25 2 4JY KK 6FD 51-+ D 55 0412345678 8 12345678C B8N B1 -PH- 3 2 2 2 1 2 1 1 2 2 1 2 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 6800/35 D+5 D+5 120 M 1 1 CNT47-0003A 6800/35C39 A F R 6.8 85 KA A R 334 K1 R70 1K 7 6 2 3 D 1S1 S8 133 1 1 15 2 4 (REA C48 0.068 S51 6D 81 80 G2 1II NCD 511 2 AS N56 78 818 MG O12 UF T 3 C 334 00 /16 + 12 D13 UPC4+ 57 01 R2 H17 A52 0 - R 151 5 02 7 - C 334 /9 16 - UPC4570HAM5 I2 C1 18 CAL +-+ 12 1 1 D1 319 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 I HC D1 71 4G LS04P IC PC10 -910 D YKF51-5031 R 1 JK05 0 50 C 0C 0 ..
23 00 64 66 88 00 .0.0 6C 6 C 882 27 5 D9S5688G I RC 168 59C 0 + C 335 /0 16 D + IC7C - 12 D 1 6 3 7 Pe 1 2 2COM 2 1 2 2 1 2 1 5 9 1 2 1 2 1 5 9 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 F C 47H N C 02 T 054 p7-0003A ~ D D1 3SBA20 D3IC D3 4 UP1 2 C24S ASA 5 5 0N 6 6 587 82 1 H89 8G FM G12F C 333 05 /16- D12 +5 T P A B (CAo ON NB AA 23 L R )O DG CW NIR 50IN 1G 01349990 R 333 07 C 0.4 01 1 7 6+- UPCI 4C 57 78 B 0HA 680R K31 6R 83 02 K 68R 03 K3 3C 3/4 17 6 3 COM 1 1 1 1 2 4- ~ +1 2C 682 02 0/1 346 C 0.1 08 68 1IN IC2 C 0.1 02 68OUT 3 FD S51 64 88G TRANS BOARD 3 R 3R 3 330 03 98 C 0 0.
.4 40 02 31 3 4 7 6+- +- UPU CICPI 4C C 587 7B42 8A 05 H70 AHA F3 4+- UIC P8 CA2 4570HA 2 1 2 2COM 1 2 1 2 54321 54321 0/6.3D 1 T ME ER P1 1866-A C 339 C 1 7654321 7654321 CN7 K5 I HC 41 71 4C 6XRST R 3.7 3 R4 K 3 D+5 RQ N14 2227 R 227 01 25JY KK 6F51-5048 1 3 D LS 504P 75 IC11B 220 2 22 4 HD74LS04P D R62 2 524 T U O D+5 D+5 120 M R70 1K 7 2 D18 1 15 2 (REA 1SS133 14 8 2 524 N I 6 3 1 IC10 PC-910 R50 D+5 D 100 5 1 6 02 .1 I HC D1 71 4G LS04P JK5 14 4 2 5 YKF51-5031 7 1 3 Pe D 6 7 10 9 8 D C47 2 33/16 1 R31 R32 R33 680K 680K 680K 3- 2 4+ IC8A UPC4570HA F A 7654321 7654321 CN7 R206 R202 6.8K 6.8K R201 C203 R213 6.8K 65+ NIC E2 50 51 73B 2 R 6.2 80 K9 65+ - - 6.8K 0.068 R 6.2 80 K5 R 6.2 81 K1 0.C 02 80 27 R 6.2 8 C205 0.068 C211 0.082 + IN C22 C18 IC2 2 6800/16 0.068 1 OUT 2COM 2 C12 0.068 1