Page 1
HCD-GRX10AV/RX110AV
MICROFILM
SERVICE MANUAL
HCD-GRX10AV/RX110AV is the
tuner, deck, CD and amplifier section
in MHC-GRX10AV/RX110AV.
Photo: HCD-GRX10AV
Model Name Using Similar Mechanism HCD-H991AV
CD Mechanism Type CDM38L-5BD29AL/
CD
SECTION
T APE
DECK
SECTION
Base Unit Type BU-5BD29AL
Optical Pick-up Type KSS-213D/Q-NP
Model Name Using Similar Mechanism NEW
T ape T r ansport Mechanism T ype TCM-230AWR1/230PWR1
Canadian Model
AEP Model
UK Model
HCD-RX110AV
E Model
Australian Model
HCD-GRX10AV
CDM38LH-5BD29AL
SPECIFICATIONS
— Continued on next page —
COMPACT DISC DECK RECEIVER
– 1 –
Page 2
7-4. SCHEMATIC DIAGRAM — CD SECTION —
• See page 35 for Waveforms.
• See page 86 for IC Block Diagrams.
• See page 90 for IC Pin Functions.
HCD-GRX10AV/RX110AV
(Page
56)
– 39 – – 40 –
Page 3
HCD-GRX10AV/RX110AV
7-5. SCHEMATIC DIAGRAM – TUNER SECTION – (AEP, UK, German model)
• See page 36 for Waveforms.
• See page 84 for IC Block Diagrams.
(Page 53)
– 41 – – 42 –
Page 4
7-8. SCHEMATIC DIAGRAM – TUNER SECTION – (East European, CIS model)
• See page 36 for Waveforms.
• See page 84 for IC Block Diagrams.
HCD-GRX10AV/RX110AV
(Page 53)
– 45 – – 46 –
Page 5
HCD-GRX10AV/RX110AV
7-9. SCHEMATIC DIAGRAM – DECK SECTION –
• See page 89 for IC Block Diagrams.
(Page 54)
– 47 – – 48 –
Page 6
7-12. SCHEMATIC DIAGRAM – MAIN (1/4) SECTION –
(Page 41, 45)
(Page 48)
(Page 70)
(Page
55)
(Page 55)
(Page 59)
(Page 59)
(Page 55)
(Page 59)
(Page 57)
(Page 57)
HCD-GRX10AV/RX110AV
– 53 –
– 54 –
Page 7
HCD-GRX10AV/RX110AV
7-13. SCHEMATIC DIAGRAM – MAIN (2/4) SECTION –
• See page 36 for Waveforms.
• See page 51 for Printed Wiring Board.
• See page 95 for IC Pin Functions.
(Page 54)
(Page 54)
(Page 40)
(Page 80)
(Page 80)
(Page 54)
(Page 59)
(Page 59)
(Page 60)
(Page 60)
– 55 – – 56 –
Page 8
7-14. SCHEMATIC DIAGRAM – MAIN (3/4) SECTION –
• See page 51 for Printed Wiring Board.
• See page 88 for IC Block Diagrams.
HCD-GRX10AV/RX110AV
(Page 53)
(Page 53)
(Page 59)
(Page 59)
(Page 59)
(Page 83)
– 57 –
DOLBY PRO LOGIC
PROCESSOR
– 58 –
Page 9
HCD-GRX10AV/RX110AV
7-15. SCHEMATIC DIAGRAM – MAIN (4/4) SECTION –
• See page 51 for Printed Wiring Board.
(Page 54)
(Page
54)
(Page 55) (Page 55) (Page 55) (Page 56)
(Page
54)
(Page
58)
(Page
58)
(Page
58)
(Page 73)
(Page 65)
(Page 65)
– 59 – – 60 –
Page 10
HCD-GRX10AV/RX110AV
7-16. SCHEMATIC DIAGRAM – MIC/HP SECTION –
7-17. PRINTED WIRING BOARD – MIC/HP SECTION –
• See page 20 for Circuit Boards Location.
(Page 64)
(Page 65)
(Page 65)
MIX MIC
11
12
(Page 63)
– 61 – – 62 –
1 1
1 2
Page 11
7-19. SCHEMATIC DIAGRAM – POWER SECTION –
(Page 61)
(Page
60)
HCD-GRX10AV/RX110AV
(Page 67)
(Page 67)
(Page
61)
(Page
60)
(Page 67)
(Page 67)
(Page 67)
– 65 – – 66 –
Page 12
HCD-GRX10AV/RX110AV
7-20. SCHEMATIC DIAGRAM – TRANSFORMER SECTION –
• See page 63 for Printed Wiring Board. (POWER BOARD)
(Page 66)
(Page 66)
(Page 66)
(Page 66)
(Page
83)
(Page
66)
– 67 – – 68 –
Page 13
HCD-GRX10AV/RX110AV
7-21. PRINTED WIRING BOARD – TRANSFORMER SECTION –
• See page 20 for Circuit Boards Location.
7-22. PRINTED WIRING BOARD – LEAF SW SECTION –
• See page 20 for Circuit Boards Location.
• Indication of transistor
C
EB
These are omitted
(Page 51)
(Page 64)
7-23. SCHEMATIC DIAGRAM – LEAF SW SECTION –
(Page 54)
– 69 – – 70 –
Page 14
7-25. SCHEMATIC DIAGRAM – DISPLAY SECTION –
• See page 36 for Waveforms.
• See page 89 for IC Block Diagrams.
• See page 98 for IC Pin Functions.
HCD-GRX10AV/RX110AV
(Page
59)
(Page 75)
(Page 75)
(Page 76)
– 73 – – 74 –
Page 15
HCD-GRX10AV/RX110AV
7-26. SCHEMATIC DIAGRAM – PANEL SECTION –
(Page 74)
(Page 73)
(Page 74)
– 75 – – 76 –
Page 16
HCD-GRX10AV/RX110AV
7-28. SCHEMATIC DIAGRAM – CD MOTOR SECTION –
• See page 89 for IC Block Diagrams.
(Page 56)
(Page 56)
– 79 – – 80 –
Page 17
HCD-GRX10AV/RX110AV
7-30. SCHEMATIC DIAGRAM – SURROUND SECTION –
(Page 57)
(Page 67)
7-32. IC BLOCK DIAGRAMS
• Tuner section
IC21 LC72130
XOUT
VSS
AOUT2
AIN2
21222324
REFERENCE
DIVIDER
2
B
C
I/F
PD2
20 19 18 17 16 15 14
PHASE DETECTOR
CHARGE PUMP
DETECTOR
PD1
UNLOCK
SWALLOW COUNTER
1/16, 1/17 4BITS
12BITS PROGRAMMABLE
DATA SHIFT REGISTER LATCH
AIN1
DRIVER
AOUT1
POWER
ON
RESET
VDD
FMIN
AMIN
1/2
UNIVERSAL
COUNTER
IO2
13
7-31. PRINTED WIRING BOARD – SURROUND SECTION –
• See page 20 for Circuit Boards Location.
2 345 6 7 8 9 10
1
CL
CE
D0
BO5
D1
XIN
IC41 LA1838
OSC.BUFF
FM-SD.ADJ
AM-OSC
ALC
BUFF
FM
S METER
FM
IF
1
FM-IN
SD
COMP
REG
28
REG
AM
AM
OSC
MIX
AM/FM
S-CURVE
FM
DET
BUFF
2 3 4 5 6 7 98
AM-MIX
AM
RF. AMP
IF
FM-IF
FM-AFC
AM-RF-IN
AGC
AM
IF
S METER
TUNING
DRIVE
AM-IF
AGC
DET
AM
GND
GND
BO1
FM-DET OUT
AM-DET OUT
TUNED
BO2
STEREO
VCC
BO3
VCC
BO4
MPX-IN
FM DET
IO1
AM. SD
1211
IFIN
OUT L
OUT R
20 19 18 17 16
212223242527 262930
DECODER
ANTI BIRDIE
STEREO
PILOT
AM. SD ADJ
SW
DET
13
IF-BUFF
FF
VCO
FM. SD
STEREO
DRIVE
FF FF
PHASE
DET
12
AMP-IN L
MUTE
AM/FM
AMP-IN R
AMP OUT L
MUTE
AMP OUT R
15141110
VCO-STOP
(Page 51)
(Page 64)
– 83 – – 84 –
• Indication of transistor
C
EB
These are omitted
Page 18
IC1701 IR3R42
D
SUBIN
SUBOUT
AMP
1
VCC
MON
1/2
PHASE
AMP
2 3
IN
WAVEFORM
SEP.
GATE
POUT
20 19 18 17 16 15 14 13 12
REGULATOR
VCO
OSC
1/2
SAMPLE
& HOLD
BUFFER
4
RHC
LPF1A
LPF1B
DETIN
AMP
PHASE
COMPARATOR
COMPARATOR 2
5 6 7 8 9
ROUT
LOUT
ST
LHC
LPF2A
PHASE
MUTE
IC1702 MC14053BCP
VDD
16
B.COM
15
14
A.COM
13
A1
A0
12
11
A
10
B
C
9
C.COM
INH
VEE
VSS
1
B1
B0
2
C1
3
4
5
CO
6
7
8
OPEN
OPEN
OPEN
LPF2B
TRIGGER
VCO STOP
11
10
GND
LAMP
IC1751 NJM4558D
A OUT
1
A
A IN–
A IN+
VEE
+–
2
3
4
B
+–
8
VCC
7
B OUT
6
B IN–
5
B IN+
IC1752 BU1922
RDCL
QUAL
TS7
QUALITY BIT
GENERATOR
DEFFERENTIAL
DECODER
RDDA
FILTER
DDD
V
BANDPASS
(8th ORDER)
CONTAS LOOP
VARIABLE AND
FIXED DIVIDER
CLOCK REGENERATION
AND SYNC
REFERENCE
VOLTAGE
DDA
V
57kHz
VSSA
VSSD
TEST
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
ANTI-
ALIASING
FILTER
CLOCKED
COMPARATOR
VP1
CIN
OSCO
141516 13 12 11 10 9
OSCILLATOR
DIVIDER
BIPHASE
SYMBOL
DECODER
321 4 5 6 7 8
Vref
AND
OSCI
RECONSTRUCTION
MUX
TSTL
SCOUT
– 85 –
Page 19
• CD section
IC101 CXA1992AR
FE_BIAS
LPFI
ATSC
TDFCT
PD2
PD1
CC1
CP
PD
LD
RFTC
RF_M
RF_O
RF_I
CB
CC2
FOK
27282930313233343536373839
VEE
+
–
+
–
–
+
RF SUMMING
AMP
FOH
FOL
TGH
TGL
BALH
BALL
ATSC
TZC
FZC
+
–
–
+
–
+
–
–
+
VEE
MIRR
VCC
–
+
–
+
+
–
–
+
VEE
LEVEL S
VCC
–
+
FOK
LDON
LPCL
LPC
TGFL
IIL DATA REGISTER
INPUT SHIFT REGISTER
ADDRESS DECODER
SENS SELECTOR
OUTPUT DECODER
DFCTO
IFB1-6
BAL1-4
TOG1-4
+
+
–
VCC
–
+
–
VEE
+
+
DFCT
–
+
MIRR
IIL
↓
TTL
DFCT1
CC1
FS1-4 TG1-2 TM1-7 PS1-4
SENS2
26
IIL
↓
TTL
–
TTL
↓
IIL
VCC
ISET
VCC VCC
SENS1
25
C. OUT
24
XRST
23
DATA
22
XLT
21
CLK
20
LOCK
19
VCC
18
ISET
17
SL_O
16
TM4 TM6
SL_M
VCC
FS1
FS2
Charge
up
TM7
TM3
TM5
VEEVEE
FSET
TG2
–
+
15
–
SL_P
14
+
TM2
–
+
PD2 IV
AMP
40
F
41
E
42
43
EI
44
VEE
TEO
45
46
47
TEI
48
49
TZC
50
51
VC
FZC
52
–
+
F IV AMP
–
+
E IV AMP
BAL1
BAL2
BAL3
BAL4
VEE
TOG4
TOG3
TOG2
TOG1
+
–
–
+
–
+
ATSC
WINDOW
COMP.
–
+
TZC COMP.
VCC
+
–
VCC
VEE
+
–
–
+
PD1 IV
AMP
TGFL
–
+
+
–
E-F BALANCE
WINDOW COMP.
+
–
DFCT
VCC
TM1
VCC
VEE
IFB1
+
–
IFB2
+
APC
–
IFB3
+
–
+
–
VEE
LASER POWER CONTROL
FE AMP
IFB4
IFB5
IFB6
+
–
TRK. GAIN
WINDOW COMP.
+
–
TG1
FOCUS
PHASE COMPENSATION
–
+
+
–
FO. BIAS
WINDOW
COMP.
TRACKING
PHASE COMPENSATION
DFCT
FZC COMP.
FS4
VEE
1
2 3
FEI
FEO
4
FDFCT
5 6 7 8 9 10
FGD
FLB
FE_O
FE_M
SRCH
TGU
131211
TG2
FSET
TA_M
TA_O
– 86 –
Page 20
IC102 BA5941FP
IN4B
IN4A
27
28
IN3B
IN3A
OP OUT
OP IN (–)
OP IN (+)
26
24
25
22
23
GND
21 20
NC
VCC
OUT3A
18
19
OUT3B
1617
OUT4A
OUT4B
15
NC
+
–
Vcc
–
+
–
+
–
+
–
+
1 2
VCC
BIAS IN
3
IN1B
IC103 CXD2519Q
80
–
+
+
–
SYSM
79 78
VDD
–
+
LEVEL SHIFT
LEVEL SHIFT
LEVEL SHIFT
+
–
MUTE
4
IN1A
VSS
EXCK
SBSO
76 75 74
77
6
IN2A
EMPHI
EMPH
71
DOUT
7
GND
C4M
70
5
IN2B
SCOR
WFCK
73 72
FSTT
69 68
XTSL
8
GND
MNT0
67
MNT1
66 65 64
9
MNT3
MUTE
XROF
C2PO
63 62
VccVcc
10
VCC
RFCK
LEVEL SHIFT
+
LRCKI
+
–
14
OUT1B
+
GTOP
VDD
57
+
–
12 13
OUT2B
VSS
BCKI
56 55 54
–
11
OUT2A
GFS
XPCK
XUGF
59 58
60
61
BCK
PCMDI
53 52 51
–
OUT1A
PCMD
AVSS
AVDD
AOUT1
AIN1
LOUT1
AVSS
XVDD
XTAI
XTAO
XVSS
AVSS
LOUT2
AIN2
AOUT2
AVDD
AVSS
XRST
OSC
50
LRCK
WDCK
49
48
ASYE
47
ASYO
46
ASYI
45
BIAS
44
RF
43
AVDD
42
CLTV
AVSS
41
40
FILI
FILO
39
38
PCO
37
VCTL
36
V16M
35
VCKI
34
VPCO1
33
VPCO2
32
TES1
31
TES0
81
NC
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
NC
99
NC
100
–
+
–
+
SERIAL-IN
INTERFACE
1 234
VDD
VSS
LMUT
–
+
–
+
OVER SAMPLING
DIGITAL FILTER
TIMING
LOGIC
RMUT
PWMPWM
3RD-ORDER NOISE SHAPER
CPU
INTERFACE
56789 10
TES2
CKOUT
SQCK
SQSO
SENS
DATA
12 13
11
XLAT
EFM
DEMODURATOR
SUB CODE
PROCESSOR
14
SEIN
CLOK
15 16 17
CNIN
DATO
SERVO
AUTO
SEQUENCER
18 19
XLTO
CLKO
SPOA
ERROR
CORRECTOR
16K RAM
21
20
SPOB
SPOC
22 23
SPOD
XLON
24
FOK
D / A
INTERFACE
DIGITAL OUT
25 26 27
VSS
VDD
DIGITAL CLV
28 29 30
MDP
MON
MDS
LOCK
PWMI
ASYMMETRY
CORRECTOR
DIGITAL
PLL
CLOCK
GENERATOR
– 87 –
Page 21
• Main section
IC201 LV1041M
R DET3
L-R RECT
DC CUT1
DC CUT2
L+R RECT
VCS TH
VCS 1
VCS 2
VLR 2
VLR 1
VLR TH
L RECT
DC CUT4
R RECT
DC CUT3
L BPF3
R BPF2
R BPF1
S DC OUT
C DC OUT
R DC OUT
L DC OUT
V REF
VCC
C OUT
S OUT
R OUT
L OUT
GND
L IN
R IN
S IN
DELAY OUT
C VOL IN
DET
IREF
R OUT
R NF
L NF
L OUT
78
80
79
1
BPF
2
3
4
5
6
7
V REF
8
9
C
10
S
R
11
L
12
12
13
15
18
21
P
B
P
B
S
NF
SW
14
16
17
19
20
20
22
23
24
77
RECT
RECT
STRIM
P
B
P
B
L
R
R
L
MASTER
26
25
VCC
76
LOGIC
P
R
B
P
L
B
P
P
S
B
B
P
S
B
VOL
27
C VOL OUT
FF
VCA VCA
VCA VCA VCA VCA
S
2928
C OP IN
7475
MODE
P
B
C
30
GND
C OP NF
73
LOGIC LOGIC
VCA VCA
S
P
BB
31
32
C OP OUT
72
C MODE
STRIM
VOL/
MUTE
P
33
VOL REF
S OP OUT
71
LR
S
34
S OP NF
35
LOGIC
DC
CUT
S OP IN
FF
P
B
P
B
CH
CONTROL
P
B
C
D
MASTER VOL
S VOL OUT
6970
IN
FILTER
SRAM
PCM
CONTROL
PCM
3736
OP VREF
68
RECT
RECT
B NR
OUT
FILTER
38
VOL
CONTROL
FILTER
S VOL IN
67
66
VOL
BPF
NOISE
NOISE
GEN
DECODER
P
B
39
DATA
VDD
S OUT
65
IEV
BPF
64
L BPF2
63
L BPF1
62
DC CUT
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
RT IN
LT IN
DC CUT
C MODE
GND
NS BPF1
NS BPF2
OSC
CLK
DATA
ENABLE
DATA
CLK
ENABLE2
VSS
OSC
OSC
VDD
A/D
NS
D/A
DC CUT
R
L
OSC
40
– 88 –
Page 22
• Deck section
• Display section
IC602 uPC1330HA
2
1
SW R1 GND SW P1
3
• CD motor section
IC701 M54641L
VCC VCC
1
REG
IN1
IN2
INPUT
3
AMP.
CONTROL
INPUT
6
AMP.
4
CONT
INVERTER
COMPARATER
6
5
VCC
GND
POWER
AMP.
POWER
AMP.
7 8 9
SW P2 GND
8
5
2
7
SW R2
REFERENCE
OUT2
OUT1
IC603 BA3833FP
RESET
1
C
2
3
4
5
6
7
8
9
REFFERENCE
Bias
PREF
LINE
NF
LINE
IN
GND
BIAS
C
NC
NC
NC
CURRENT
RESET
BPF
BPF DET
BPF DET
BPF DET
DET
DET
18
RESET
17
f01
16
f02
15
f03
14
f04
13
f
12
VCC
11
NC
10
NC
IC801 BA6286N
GND
1
RIN
2
VREF
3
OUT2
4
RNF
5
GND
6
7
OUT1
VM
8
VCC
9
FIN
10
GND
4
POWER
SAVE
CONTROL
TSD
LOGIC
IC851 MSM6653A-517GS-K
1
VDD
XT
2
OSC
3
XT
NC
4
5
CMD
6
NC
NC
7
ST
8
9
I0
I1
10
I2
11
12
I3
ROM
SOUND
MIX
µ CON
INTER FACE
24
GND
23
A-OUT
NAR
22
NC
21
BUSY
20
NC
19
VPP
18
17
RST
16
CH
15
SD
14
SI
13
I4
– 89 –
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