Service manual

MD-MT831H/W
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Figure 28 SCHEMATIC DIAGRAM (1/3)
P28
P29 P30
• NOTES ON SCHEMATIC DIAGRAM can be found on page 36.
SPDRR
DISC
LDCNT2 LDCNT1 SLDRF SLDRR
SPDRF
FODRR FODRF TRDRR TRDRF
SP
X176KO
DCNT1
IN3F
H3PG2
H3ROUT
H3VM
H3FOUT
H3PG1
H4PG2
H4ROUT
H4VM
H4FOUT
H4PG1
IN3R
IN4F IN4R
FG
CSL1
CSL2
CST
SPVM1
SPPG1
SPVM2
SPWOUT
SPVOUT
SPUOUT
SPPG2
ASGND
SGND
SPCOM
SPWIN
SPVIN
SPUIN
BRK+
BRK- H2FPG1 H2FOUT H2VM H2ROUT H1PG2 H1PG1 H1FOUT H1VM IN1R H1ROUT H1PG2 IN2R IN2F
IN1F
PWIN2
PWIN1
PW1VM
PW1OUT
PWPG
PW2OUT
PW2VM
VCC2
VCC1
STALL
STHB
EXTCLK
C1P
C1M
C2P
C2M
VG
T+
T-
F+ F-
PDCNT
INNSW
S
G2 G1
D2 D1
S1
S2
G1
D1
S2
G2
S1
D2
T-
F+
T+
F-
VCC
GND
L171
10µH
TEMP
SGAIN
DISC
ESW
BOUT
MODE
SW
EFMAGC
ASW
BSW
FSW TCGO
OPICPW
VCC2
WBO
GND2
ADIPNF
ADAGI
2-1
DCNF
VCC1
BIAS
GND1
NIN
PITG
3+4
PIN 1+2
1234
AOUT BOUT EOUT
DTEMP
SGAIN
DISC
BPF
R
and
SW
DIFF
ADIP
AGC
BIAS
RF1
RF2
RF3
RF4
REFI
REFO
RFADD TCGI
AIN
BIN
EIN FIN FOUT EOUT
AOUT
ADIPO
ADAGC
EFMO
LDVAR
LDON
OPICGA
INNS
PDC
EFMO
SYRS
SYRD
SYWR
SYD7
SYD6
SYD5
SYD4
SYD3
SYD2
SYD1
SYD0
DINT
CIN
SENSE
FOK
XRT
2.0V