Kenwood DP 1100 SG Service Manual

Page 2

DP-llOOSG

CONTENTS

TRANSPOHYATlON SCREW 2
DlSASSEMBLY FOR REPAIR . 3
SYSTEM CONNECTIONS . 4
CONTROLS AND INDICATORS 5
BLOCK DIAGRAM 7
CIRCUlT DESCRIPTCN 9
I Descrlpllon of ::mponems 9
- Sel Mode Flowrar: ll
- Testmcde 12
U Microprocessz
#PD7626AC3. 7351 32117000 lCWOl 17
o RFamplflel
CXAWOBTMKX: 1870700 lCl) 20
o Servos-gnalp ssor
CXA1244S (X 70-00 lC) 26
- JlgllalSlgnalcZceSSmg LSI
CXDHZSQZxEZ-lWO-OO lC6} 30
o Slanc RAM
CXK581 SSPvl 2L (X3271 170700 K17) 51
- Reserlc
M51957ASLIX3271170-00' lC1H 52

Transportation screw

Before cperanon, remove lhe [W0 red screws anached to
the bolmm ol me .nll used durlng lransport from the
lacmry. Remove born screws uslng a com. elc, and. alter
removmg. relam mam mgemer With me Warranty card and
other documents When the unll lS so be lransporxed agaln,
be sure replace the MO screws m meir orlglnal posmorv

- DA Convener

FCM56P~K (XZSvSOEO-OO lClJCZ). 53
O Dlgilalfiller
SMSBMD (X26~3050v00' IC14D ,. V .. 54
0 WA dlslomon correct
TC17GOOSAF-0048 0057305000 K315) 58
I Hean Fllprllop
TC74HC174F ZS-3040700 lCZ) 58
o Translslorarray
TD62003APlX25-3040-UO K33} 59
o Zechannelanalog swltcrl lc
MPD40538C1X324 170700 lCZl 59
ADJUSTMENT/REGLAGE/ABGLECH 60
PC BOARD lCompanenl Slde Vlewl 67
3C BOARDlFollSlde Vlew) 7
SCHEMATC DIAGRAM 75
EXPLODED VlEWlMECHANlSM} 83
EXPLODED VlEW (UNT) 84
PARTS HST. V . 55
SPECIFYCATONS Back cover

I adore "av-won: lighun the transporutian
screws
Eelole transponmg [ms unu. be sure to nghlen me two
lransporrauon screws or the burrow ol me uml

Turn ON (he power swuch when no else .s loaded,
Wen a lew seconds mm me dISC our Indlcalor comes
"ON, Then mm "OFF" the power.

_

N

3 Flrmly llgmen lhe lwo lranspormlon screws,

DISASSEMBLY FOR REPAIR

Mechanism assembly removal procedure

1 Remove me screw (0} retalnlng the ground lug lrom
me mechanlsm assembly

2 Remove the three canneclors 1°)

3 Remove me lour screws (9) relalnlng me mechanism
assembly

4 Remove the mechamsrn assembly by pullmg oul m me
dlrecllon ol the arrow ( o)

DP-11008G

Page 19

DP-11OOSG

CIRCUIT DESCRIPTION

CIRCUIT DESCRIPTION

5) Subcodnompul (as fmm the mleOOYOCESSDr). Two 80m shm re~
Sub codes P~W loaded in the 6 mt Shift register are glsters, for reading and wrltlng, are incorporated, and . .
umpm om of $590 (evmlnzl .n aocnrdance Men the while the macroprucesor reads, me new sub eode o HumSCOR'CRCF'SQCK'SUBO
clock mpm mvough EXCK lenninal, when scan teunlnal is wnnen to another register. The microprocessor Ts SOEX' """M'"
is "H. so - 51 sugnal :souxput. interrupted Irom the outside at The rising edge of the
Sub code 0 is as follows] depending on the 502x pin soon pin, and aher cheekmg the CRCF Ilag (output
status. m the CRCF pm, or me SUBO pin when the cnco
h) when (he sogx pm .s "L",sub codeO is output Iwm flag .5 "1), the CRCF I; checked. If CFICF = H a 500" ,--l
(he sueo pm in synchvonlsm with the WFCKSIgnaI in shm max .5 mum and the new sub code 0 rs read,
the same way as 50! me cx23035. The WFCK 15 am AIxer Ihe LSB sude l5 replaced wuh the M88 me by CHEF X X
oquut from the SQCK pm. a umt of 4 bus, The dam IS stored m reg>ster As (he 2
1m when (he suEx 0m Ts "Ham meals cum from mcropvocesmr senallv moms irom (he LSB hm, socx WW-
lhe SUEO pm In syncmomsm wnh [ha extema dock eplacmg The 4 bits of daze xs unnecessary,

SUN mammal

(3) Timing 0' $380, SUEO, SCOR, CRCF

so: L" mu '5 cncp whln caca an; .s "'3 unaeimd whzn a".
vcm W
WFCK soon
so CRCF L X
so 51
1 2 3 4 5 96 S0 5'
5m socx W
suau
scan -n@mmmmm-
-5 : cac: mun cncu m; 15 '3' 098,01 m.» "o".
cncs

(2) Timing chart 0' sub coda outputs

[b] Timing of $850, EXCK

suao mum

wscx -_1 E;
I am

-4 H 500m mm H 500m mm -aom shun we.
EXC" #m """"""
Suhcud: I
I ->-
saso 'I i G K R X s X T X u w -2 IO- Sobltshlhregmer

7
'| 15w em- I» is nulpul when scan I: 0. WC"
50-51 isnutpmwhen scan n 1,
'2 5350 is a when a a: men pqu! m inpul m EXCK new, 9
'2 - n - 67 :1 m pound a! vco .. prrulnd as T
u - M-Iu EXCK low Inv To. no." The rlslng mm M wrcx. cum
0". mm uovind 0| 1 =B.6435MHX. scan 5 0
i . so
(1) T mmg chan 0' sub code outputs CK turmmal T socx i
WFCK

soex Terminal \

36

37