ROLAND TR 707

Page 2

TR-707/TR-727

LCD Driver

1
LCD DRIVE HD61602
COM- __
READY MON *$?4?MMON OUT
3 8810¢ROL : ¥0VIMI\YVGRITE DRIVER COMO~COM3
GEN. I :1_)
I
83931-1 EESIAAILLEL/ 1 SEG- SEGMENT OUT
' A DISPLAY MENT 7
FE BbuxZ CONVERTER RAM * DRIVERkj>15H
SEGO- SEG50
141- U .. ADDRESS :
SB DECODER
MODE
SET :0PERAYIDN
LATCH :MODE
V VE
LCD DRIVE V, DR'
VOLTAGE v, VOLTAGE
GEN' SELECTOR Block Diagram
@

Top Panel
.(2201064700)
012201066400)

Cartridge Board

Cartridge Lid (7313608000)

(2202569400)

4 Screw 20)::me
3x12mmBH,P,Ni BH P FeCm
Cartridge Socket
(2342516500) /
0=TR-707 LCD Board
0 =T R-727 (7313607000)
Escutcheon h'
(2202069300) 32520036000)

Rubber Con nectov
(2343025100)

Reflector
supplied with LCD

LCD
0 1.12491 A-G
(15029413)
0 LP-191B-G
(15029422)

Top Panel
012201064700)
012201066400)

Window Cover
(2202069200)

Escutcheon
(2202069300)

Pin configuration
(Top View)

TERMINAL ASSIGNMENTS

P111 nun

P111 1111.

Pin nan

P111 1111.

Plll III-e

JUL. 1985

PARTS LIST
EXCLUSIVE PARTS

CASING
2201064700 Top Panel

PCB
7313604000 Voicing Board (pcb 2291098102)
7313605000 Volume Board (pcb 2291098002)

LCD
15029418 LCD LP~191A-G
IC
Program ROM
15179720 HN4827128G-25 NMOS EPROM
(Ver.0 SN460100-504399)
(Ver.1 SN504400~519599)
or
15179660 HN613128PE95 CMOS MASK ROM
(Ver.l SN519600-533099)
or
15179692 HN613128P624 CMOS MASK ROM

(Ver.2 SN533100-up)
UPWARD COMPATIB ILITY
Ver.0
In Pattern PLAY mode -- Selecting a pattern from different
scale while repeating STOP and START or CONTINUE sometimes
leads to Power-ON initialization.
ROMs of Ver. 1 always run the new pattern at the beginning

m 2 a sum 5 5 511122
2 115m 29 sum 56 55021 Of a measure.
3 63 3 0 551111 5 7 sum Ver. 1
4 E 31 35945 53 55919 when the unit is used as a Master - Repetitions of STOP
5 fi 32 551145 59 sum and CONTINUE more than 30 times would cause generation of a
6 SB 33 sum 60 sum redundant MIDI clock $138.
7 111 3., sum 61 50015 when the unit is used as a Slave - will miss a MIDI IN
a 116 35 551142 62 m clock when STOP signal follows the Clock within 11113.
9 D5 36 SEMI 63 359 MASK ROM of Ver.2 cures this problem.
10 m 37 saw e4 .5601: For a replacement Ver.2 or up is recommendable.
11 m 35 sum 6 5 551112 11:: wwtmflifiifiifie LTliIV-V a Vfifi-OfikahPROMVWfflififii Lu)
1 2 In a 9 sum 6 6 sum Sound ROM
:2 1): :l :2; Z; :3: 15179661 HN61256PC-71 CMOS MASK ROM
1301/2, SDI/2, LT, MT
5 "° 42 SW35 69 59 15179662 HN61256PC-72 CMOS MASK ROM
15 I! 43 SEE 70 SW HT, Open/Closed 11.11, Rim, Cow
1 7 "m 4 4 sum .,7 1 secs HCP, Tambourine
18 11:2 45 $5092 72 51115 15179663 HN61256PC-73 CMOS MASK ROM
1 9 v01 4 s 551151 7 3 SEN CraSh Cymbal
20 v1 47 551130 74 3103 15179664 HN61256PC-711 CMOS MASK ROM
2 1 v2 4 a 51.029 7 5 sun Ride Cymbal
22 v7 49 5111120 715 Sin
2 a cum 5 0 551121 7 7 sm CASING
2 m 5 SW 73. "0 2201066400 Top Panel
2 5 com 5 2 seals 7 9 08122
26 00113 53 51-1121 so 031:! PCB
27 50150 54 5121123 - -~ 7313804000 Voicing Board (pcb 2292018900)
7313805000 Volume Board (pcb 2292019000)
LCD
15029422 LCD LP-lQlB-G
IC
Program ROM
15179719 HN4827128G-25 NMOS EPROM
Sound ROM
15179694 HN61256PC-79 CMOS mask ROM

HI/LOW BONGO, HI CONGA
LOW CONGA, HI TIMBALE