background image

HR-16/HR16B Service Manual 1.00 

25 

 

0FEH 27H 
0FFH 0B5H 
 
100H-187H 

DON'T ALTER(this can be DON'T CARE if manual voice/tune/mix is off) 

188H-191H DON'T 

CARE 

192H-1A1H 0 
1A2H-1FFH DON'T 

CARE 

 
200H 

MSB of absolute pointer to pattern 00 

201H 

LSB of absolute pointer to pattern 00 

202H 

MSB of absolute pointer to pattern 01 

203H 

LSB of absolute pointer to pattern 01 

204H 

MSB of absolute pointer to pattern 02 

205H 

LSB of absolute pointer to pattern 02 

  " 

   "                 "              "        " 

2C6H 

MSB of absolute pointer to pattern 99 

2C7H 

LSB of absolute pointer to pattern 99 

2C8H-2CCH DON'T 

ALTER 

2CDH 

LSB of absolute pointer to first byte past SONG 99 data 

2CEH 

MSB of absolute pointer to first byte past SONG 99 data 

2CFH-2D0H DON'T 

ALTER 

2D1H 

LSB of FF00H minus data in 0CDH & 0CEH 

2D2H 

MSB of FF00H minus data in 0CDH & 0CEH 

2D3H-2D4H DON'T 

ALTER 

2D5H 

Shuffle amount (0-24, 0=50%) 

2D6H-2D7H DON'T 

ALTER 

2D8H Tempo 

(20-255) 

2D9H 

Quant clock count (must correspond to Quant value 0-9: 96, 64, 48, 32, 24, 16, 12, 8, 6, 1) 

2DAH 

Quant value (0-9) 

2DBH-2FFH DON'T 

CARE 

 
300H-301H DON'T 

ALTER 

302H 

MSB of absolute pointer to song 00 

303H 

LSB of absolute pointer to song 00 

304H 

MSB of absolute pointer to song 01 

305H 

LSB of absolute pointer to song 01 

306H 

MSB of absolute pointer to song 02 

307H 

LSB of absolute pointer to song 02 

  " 

   "                 "              "        " 

3C8H 

MSB of absolute pointer to song 99 

3C9H 

LSB of absolute pointer to song 99 

3CAH-3CCH DON'T ALTER 
3CDH-3D2H DON'T CARE 
3D3H-3D6H DON'T 

ALTER 

3D7H-3FFH DON'T 

CARE 

400H-? 

PATTERN 00 DATA 

 
The pattern and song data must be dealt with in a specific manner: 
 

1)  All pattern and song data must be in consecutive order, i.e., pattern 05 data cannot be before pattern 

02's data.  The order for the data should be pattern 00 through 99, followed by song 00 through 99. 

Содержание HR-16

Страница 1: ...HR 16B Drum Machine Drum Machine SERVICE MANUAL 1987 Alesis...

Страница 2: ...HR 16 HR16B Service Manual 1 00 i 03 31 06 HR 16 HR 16B Drum Machines Service Manual V1 00 7 27 95...

Страница 3: ...repairs done by you or with reference to the Manual shall be solely your responsibility and Alesis shall have no liability for any such repairs or service work All such service or repairs are perform...

Страница 4: ...re which accompanies the product CAUTION Danger of explosion if battery is incorrectly replaced Replace only with the same type or equivalent type recommended by the equipment manufacturer Battery Man...

Страница 5: ...e not to allow liquids to spill or objects to fall into any openings of the product 6 Water or Moisture The product should not be used near any water or in moisture 7 Heat Do not place the product nea...

Страница 6: ...s capacitors that begin to leak excess current after a significant amount of time 5 Cable Checks Wiggling cables can reveal intermittent failures such as loose cables or poorly soldered headers Rememb...

Страница 7: ...es 7 6 1 General Testing 8 6 2 Internal Diagnostics and Hidden Keys 8 6 3 DAC Adjustments 8 7 0 Updates and Corrections 9 7 1 New SRAM Supply Circuit 9 7 2 Glass Zener D15 9 7 3 Dirty Cliff jacks 10 7...

Страница 8: ...Diagram 2 is provided in order to assist with board revision identification 2 0 Power Supply The power supply begins with the 9 Volt A C adapter Alesis P2 mini plug or P3 barrel types Input from J1 is...

Страница 9: ...ear They should be replaced with low power versions 58256 LP when found in order to eliminate excess battery drain We are currently using Hitachi 62256ALPs as replacements CAUTION Danger of explosion...

Страница 10: ...estroy any hope that the battery backup will work R28 R29 and the 5 1V zener diode D15 work together as a voltage divider to the base of Q4 and is designed so that transistor Q4 will turn on when the...

Страница 11: ...is strobed At this point data on the 8031 data buss is written into the latch 3 3 Keypad I O Keypad I O is handled through a simple polling process Each row of the keypad matrix is pulled low one at a...

Страница 12: ...6MHz in HR 16 DAC0 DAC16 42 51 53 60 Output to DAC A0 A19 3 17 19 23 Mask Address Buss D0 D7 61 68 Mask Rom Data Buss SNH0 39 Output Sample and Hold Control SNH1 40 SNHIN 41 Output Sample and Hold In...

Страница 13: ...ts The analog equivalent of these values is compared to the actual input signals via comparators U1 pins 2 4 and 5 for the data slider and U1 pins 8 9 and 14 for the piezos The 8031 reads the result o...

Страница 14: ...level output The output during tape save or type sync out applications will appear as a 5V pulse train but only if the tape out is NOT connected to a deck the decks A C coupling will distort the outpu...

Страница 15: ...ivalent to reinitializing To perform the internal diagnostics connect a MIDI cable between MIDI in and out Connect a 1 8 inch cable between Tape in and out Activate the self test keys above the order...

Страница 16: ...ation to install the circuit in Revision A CA PC boards while diagram 6 shows the location for revision AQ PC boards The installation of this circuit is highly recommended and is absolutely necessary...

Страница 17: ...ffect was to leave the EPROM permanently enabled and use OE pin 22 which operates much faster to control it s access to the data buss On revision A PC boards this requires cutting a trace scraping the...

Страница 18: ...sion CA main PC boards were manufactured with the solder mask covering the ground plane that will need to be scraped off in order to achieve a proper connection If this is not done correctly this may...

Страница 19: ...f this happens then battery backup will not function The simplest solution is to lift one or both leads of the resistor slightly with a soldering iron pushing them up through from the bottom of the bo...

Страница 20: ...t threshold Revision AQ During the development of the AQ main PC board one of the prime considerations was to reduce R F emissions to virtually 0 Towards this end a 100 ohm resistor R133 was introduce...

Страница 21: ...vision CA When the PUP circuit first appeared it was found that the circuit would occasionally oscillate on power up causing noise This was eliminated by adding a bypass capacitor later incorporated a...

Страница 22: ...ithic filter capacitor Any of the small blue RAM capacitors used as bypass capacitors can become shorted and pull the rail low We are currently using ceramic disk capacitors as replacements exclusivel...

Страница 23: ...eshoot and repair as necessary No tape in Broken 1 8 jack J5 Replace and retest User error See section 5 3 Faulty 8031 Troubleshoot and repair as necessary Faulty integrator capacitor C11 or C23 Repla...

Страница 24: ...ed only in the HR 16 and does not have the correct MASK ROM addressing tables to play HR 16B sounds Check and replace if necessary Faulty DM3AG ASIC Replace and retest Faulty power supply rail Trouble...

Страница 25: ...N IC 74HC04 2 14 7404 1 U6 MAIN IC TL084 LF347 2 21 0084 2 U20 21 MAIN IC LM339 2 22 0339 1 U1 MAIN IC CD4052 2 23 4052 1 U19 MAIN RCA ONLY IC 6N138 2 24 0138 1 U13 MAIN IC 32Kx8 SRAM 2 17 0257 1 U12...

Страница 26: ...0 00 0302 2 R28 37 MAIN RES 300K 1 8W 5 0 00 0304 1 R63 MAIN RES 3 3M 1 8W 5 0 00 0335 1 R24 MAIN RES 390K 1 8W 5 0 00 0394 1 R17 MAIN RES 470 1 8W 5 0 00 0471 13 R7 68 117 119 125 132 MAIN RES 4 7K...

Страница 27: ...that would cause pattern 99 to be erased if a single pattern or song was loaded in or a cassette was verified 6 15 88 1 07 1 Fixes bug that when adding beats to the beginning of a pattern any drums m...

Страница 28: ...1 64 0 50 0 1 50 58 3 OFF 0 50 0 50 Despite the displayed percentage being smaller in the new values there are actually more shuffle steps than before The old displayed percentages represented the rat...

Страница 29: ...wnbeat For example if no events existed on beats 1 and 2 and the length from top was changed to be shorter by one beat the amount of silence before the first event would be wrong 2 Fixed bug which cau...

Страница 30: ...transmitted or received the SYSEX ENABLE function MIDI UTIL page 15 must be turned on All 11 possible commands will be transmitted in the following format HEX COMMENTS F0H SYSTEM EXCLUSIVE STATUS BYT...

Страница 31: ...of CLS HAT 0 127 0CFH MIDI note assignment of MID HAT 0 127 0D0H MIDI note assignment of OPEN HAT 0 127 0D1H MIDI note assignment of CLAPS 0 127 0D2H MIDI note assignment of PERC 3 0 127 0D3H MIDI not...

Страница 32: ...minus data in 0CDH 0CEH 2D3H 2D4H DON T ALTER 2D5H Shuffle amount 0 24 0 50 2D6H 2D7H DON T ALTER 2D8H Tempo 20 255 2D9H Quant clock count must correspond to Quant value 0 9 96 64 48 32 24 16 12 8 6 1...

Страница 33: ...63H 06H KICK panning bits 5 7 0 L 6 R pitch bits 0 4 0 16 1FH 15 07H SNARE sound number 0 30H 08H SNARE output assign bit 7 and volume bits 0 6 0 63H 09H SNARE panning bits 5 7 0 L 6 R pitch bits 0 4...

Страница 34: ...nt or a count of clocks to wait or 0FFH which indicates the end of the pattern If the event is a drum event bit 7 will be 0 bits 4 6 will contain the dynamics of the note 0 7 and bits 0 3 will contain...

Страница 35: ...H EOX 02H RECORD BUTTON This command is used to press or release the RECORD button It will affect whether the HR 16 will go into play or record when it receives a MIDI START command It does not affect...

Страница 36: ...dition it is recommended that a delay be added before sending additional MIDI commands since it may take a few seconds for the copy operation to be complete during which time MIDI data will be ignored...

Страница 37: ...ned off If MIDI ECHO is on the transmitting device will see the inquiry message returned to it if bi directional communication is functioning This function is useful in determining that the HR 16 is r...

Страница 38: ...HR 16 HR16B Service Manual 1 00 31 12 0 Service Manual History 7 27 95 V1 00 1st release...

Страница 39: ...4 15 18 D19 6 D2 1 18 D21 11 D3 1 D4 1 D5 1 15 D6 4 18 D7 2 5 D8 9 DAC 5 6 8 11 16 17 18 21 DAC0 DAC16 5 data buss 2 3 4 5 10 15 16 17 data corruption 2 3 9 data slider 6 16 17 DataDisk 7 distortion...

Страница 40: ...est 8 shield 11 shorts 1 11 SHUFFLE 21 25 SIP 6 19 SNH0 5 SNH1 5 SNHIN 5 software history 15 solder mask 10 11 SONG DATA 25 26 27 28 Song Pointer 20 SRAM 1 2 3 8 9 15 16 18 SRAMs 2 9 standby current 2...

Страница 41: ...HR 16 HR16B Service Manual 1 00 34 NOTES...

Отзывы: