Sherwood NewCastle R-772 User manual

R-772
AUDIO/VIDEO RECEIVER
SAFETY PRECAUTIONS ................................... 1
SPECIFICATIONS .............................................. 2
TUNER SECTION .............................................. 7
BLOCK DIAGRAMS ............................................ 9
WIRING DIAGRAM ........................................... 12
CIRCUIT DESCRIPTION .................................. 13
ALIGNMENT PROCEDURES .......................... 18
TROUBLESHOOTING....................................... 21
MECHANICAL PARTS LIST.............................. 25
EXPLODED VIEW............................................. 26
ELECTRICAL PARTS LIST............................... 27
IC’S FUNCTIONAL BLOCK DIAGRAMS........... 35
PRINTED CIRCUIT BOARDS........................... 37
SCHEMATIC DIAGRAMS ................................. 45
CONTENTS
R

1
SAFETY PRECAUTIONS
WARNING
Before servicing this unit, familiarize yourself with the following precautions:
1. Many electrical and mechanical parts in this
chassis have special safety characteristics that
often pass unnoticed and the protection
afforded by them cannot necessarily be
obtained by using replacement components
rated for higher voltage, wattage, etc.
Replacement parts that have these special
safety characteristics are identified in this
manual and its supplements: electrical
components having such features are identified
by in the schematic diagram and the parts
list.
Before replacing any of these components,
read the parts list in this manual carefully. The
use of substitute replacement parts that do not
have the same safety characteristics as
specified in the parts list may create shock, fire,
or other hazards.
2.Before returning the set to the customer,
always do an AC leakage current check on the
exposed metal parts of the cabinet, such as
terminals, screw heads, and metal overlays, to
be sure the set is safe to operate danger of
electrical shock. Plug the AC line cord directly
into a 120 V AC outlet(USA Version) or 230 V
AC outlet(EU Version). (Do not use a line
isolation transformer during this check.) Be sure
your AC voltmeter has a sensitivity of 5000 Ω
per volt or greater. Then connect a 1500 Ω10
watt resistor, paralleled by a 0.15 µF 150 V AC
capacitor, between a known good earth
ground(such as a water pipe, or conduit) and
the exposed metallic parts, one at a time.
Measure the AC voltage across the combination
of a 1500 Ωresistor and a 0.15 µF capacitor.
Reverse the AC plug at the AC outlet and
repeat AC voltage measurements for each
exposed metalic part. Voltage measured must
not exceed 0.75 V RMS. This corresponds to
0.2 mA AC. Any value exceeding this limit
constitutes a potential shock hazard and must
be corrected immediately.

2
Measuring methods are based on IHF and IEC standard 268-3
Measurements conditions,unless otherwise noted :
Output resistive load = (6) ohms / Both channel driven
Tone Direct ON , Other SW's : OFF
Nominal input level : 5mV for MM, 0.5mV for MC, 500mV for general purpose inputs
Power figures should be kept minimum 10min. between 15 and 35
Terminator : 100ohm for MC, 1kohm for MM and general purpose inputs
Filter : IHF-A filter R/O = Rated Output
Power supply : 120V/60Hz (A), 230V/50Hz (RDS)
FRONT AMP SECTION * SPKR LEVEL:ALL 0dB * SPK SIZE:YES
* EXT IN INPUT * TONE OFF * X-OVER:FULL RANGE
INPUT FREQ. REMARK UNIT LIMIT L/R NOMINAL
L/R
INPUT SENSITIVITY EXT IN INPUT 1kHz R/O mV 300±50 300±30
TOTAL HARMONIC DISTORTION EXT IN INPUT 40Hz R/O-3dB 0.12 0.08
(STEREO IN) 1kHz 0.12 0.08
20KHz 0.2 0.12
CONTINUOUS AVERAGE POWER EXT IN INPUT 40Hz (6)ohms W 85 90
at 1 % THD 1kHz W 95 100
(STEREO IN) 20KHz W85 90
S/N RATIO, INPUT SHORT EXT IN INPUT 1kHz R/O dB 85 90
IHF-A FILTER
FREQUENCY RESPONSE (-3dB) EXT IN INPUT 1W / 1kHz Ref. Hz~kHz 20~50 20~55
CENTER AMP SECTION(FRONT CENTER) * SPKR LEVEL:ALL 0dB * SPK SIZE:YES
* EXT IN INPUT * TONE OFF * X-OVER:FULL RANGE
INPUT FREQ. REMARK UNIT LIMIT L/R NOMINAL
L/R
INPUT SENSITIVITY EXT IN INPUT 1kHz R/O mV 300±50 300±30
TOTAL HARMONIC DISTORTION EXT IN INPUT 40Hz R/O-3dB 0.12 0.08
(STEREO IN) 1kHz 0.12 0.08
20KHz 0.2 0.12
CONTINUOUS AVERAGE POWER EXT IN INPUT 40Hz (6)ohms W 85 90
at 1 % THD 1kHz W 95 100
(STEREO IN) 20KHz W85 90
S/N RATIO, INPUT SHORT EXT IN INPUT 1kHz R/O dB 85 90
IHF-A FILTER
FREQUENCY RESPONSE (-3dB) EXT IN INPUT 1W / 1kHz Ref. Hz~kHz 20~50 20~55
SURROUND AMP SECTION * SPKR LEVEL:ALL 0dB * SPK SIZE:YES
* EXT IN INPUT *TONE OFF * X-OVER:FULL RANGE
INPUT FREQ. REMARK UNIT LIMIT L/R NOMINAL
L/R
INPUT SENSITIVITY EXT IN INPUT 1kHz R/O mV 300±50 300±30
TOTAL HARMONIC DISTORTION EXT IN INPUT 40Hz R/O-3dB 0.12 0.08
(STEREO IN) 1kHz 0.12 0.08
20KHz 0.3 0.2
CONTINUOUS AVERAGE POWER EXT IN INPUT 40Hz (6)ohms W 85 90
at 1 % THD 1kHz W 95 100
(STEREO IN) 20KHz W85 90
1
2
3
DESCRIPTION
DESCRIPTION
DESCRIPTION
NO.
1
2
3
NO.
1
5
2
3
4
SPECIFICATIONS
4
5
NO.

3
INPUT FREQ. REMARK UNIT LIMIT L/R NOMINAL
L/R
S/N RATIO, INPUT SHORT EXT IN INPUT 1kHz R/O dB 85 90
IHF-A FILTER
FREQUENCY RESPONSE EXT IN INPUT 1W / 1kHz Ref. Hz~kHz 20~50 20~55
SURROUND BACK AMP SECTION * SPKR LEVEL:ALL 0dB * SPK SIZE:YES
* EXT IN INPUT * TONE OFF * X-OVER:FULL RANGE
INPUT FREQ. REMARK UNIT LIMIT L/R NOMINAL
L/R
INPUT SENSITIVITY EXT IN INPUT 1kHz R/O mV 300±50 300±30
TOTAL HARMONIC DISTORTION EXT IN INPUT 40Hz R/O-3dB 0.12 0.08
(STEREO IN) 1kHz 0.12 0.08
20KHz 0.3 0.2
CONTINUOUS AVERAGE POWER EXT IN INPUT 40Hz (6)ohms W 85 90
at 1 % THD 1kHz W 95 100
(STEREO IN) 20KHz W85 90
S/N RATIO, INPUT SHORT EXT IN INPUT 1kHz R/O dB 85 90
IHF-A FILTER
FREQUENCY RESPONSE EXT IN INPUT 1W / 1kHz Ref. Hz~kHz 20~50 20~55
SUBWOOFER SECTION * SPKR LEVEL:ALL 0dB * SPK SIZE:YES
* EXT IN INPUT * TONE OFF * X-OVER:FULL RANGE
INPUT FREQ. REMARK UNIT LIMIT L/R NOMINAL
L/R
PRE OUTPUT LEVEL SUB-CH(300mV) 30Hz VOL. MAX V 3.5±1.0 3.5±0.5
STEREO SECTION * SPKR LEVEL:ALL 0dB * SPK SIZE:YES
* TONE OFF(TONE DIRECT) * X-OVER:FULL RANGE
INPUT FREQ. REMARK UNIT LIMIT L/R NOMINAL
L/R
INPUT SENSITIVITY CD 1kHz mV 300±50 300±30
CHANNEL BALANCE CD 1kHz R/O TO -40dB dB ±3±2
RESIDUAL NOISE(INPUT SHORT) CD 1kHz VOL min. mV 2.0 1.5
TOTAL HARMONIC DISTORTION (40)Hz R/O-3dB 0.12 0.08
CD (300mV) 1kHz 0.12 0.08
(20)KHz 0.2 0.12
CONTINUOUS AVERAGE POWER (40)Hz (6)ohms W 85 90
at 1 % THD CD 1kHz W 95 100
(20)KHz W85 90
S/N RATIO, IHF-A FILTER CD (300mV) 1kHz R/O dB 85 90
CHANNEL SEPARATION 100Hz R/O-3dB dB 50 65
CD (300mV) 1kHz dB 55 65
10kHz dB 40 50
FUNCTION CROSSTALK CD TAPE IN 1 kHz dB 60 65
(INPUT SHORT) 10 kHz dB 40 45
FREQUENCY RESPONSE (-3dB) CD (300mV) 1W Hz~kHz 20~50 20~55
TONE CONTROL , ±(10)dB 100Hz 1W dB ±10(±3) ±10(±2)
(TONE ON) 10kHz dB ±10(±3) ±10(±2)
HEADPHONE OUTPUT(STEREO)
H/P = 64ohms
CINEMA EQ(SPK ; LLLY) CD (300mV) 10kHz 1W dB -4.5±1.5 -4.5±1
10
6
NO.
5
1
NO.
1
NO. DESCRIPTION
2
3
4
5
3.0±0.51kHz R/O V 3.0±1.0
12
11 CD (300)mV
NO. DESCRIPTION
2
DESCRIPTION
DESCRIPTION
5
4
1
CD
7
8
9
3
4

4
DOLBY DIGITAL INPUT SECTION
* INPUT : COAXIAL (CD DIGITAL)
* SURROUND MODE : DOLBY DIGITAL
* VOLUME POSISTION : 55dB
* CONFIG1:SPK YES BACK-NO/X-OVER:ALL 80Hz
* CONFIG2:SPK YES /SUBWOOFER,BACK-NO/X-OVER:FRONT FULL RANGE,OTHERS 80Hz
* AT SPEAKER OUT Disc:LD VER 1.0
SPEC
NOMI. LIMIT
1 OUT PUT LEVEL FRONT 1KHz 8 ,12 V 9.5±1 9.5±2
Disc All CH 0dB CENTER 1KHz 10 V 9.5±1 9.5±2
SPK MODE:YES,BACK-NO SURR 1KHz 14,16 V 9.5±1 9.5±2
X-OVER:ALL FULL RANGE S/W 30Hz 18 V 1.0±0.5 1.0±0.8
2 T.H.D FRONT 1KHz 38 %0.3 0.5
Disc 0dB LPF(20KHZ) CENTER 1KHz 38 %0.3 0.5
SPK MODE:YES,BACK-NO SURR 1KHz 38 %0.3 0.5
X-OVER:ALL FULL RANGE S/W 30Hz 18 %0.25 0.3
3 S/N FRONT 1KHz 6dB 65 60
LPF(20KHz) CENTER 1KHz 6dB 65 60
JIS-A FILTER,Disc -20dB SURR 1KHz 6dB 65 60
SPK MODE:YES,BACK-NO S/W 30Hz 18 dB 65 60
4 DYNAMIC RANGE FRONT 1KHz 38 dB -11±1 -11±2
CENTER 1KHz 38 dB -11±1 -11±2
SURR 1KHz 38 dB -11±1 -11±2
S/W 30Hz 18 dB 0±10±2
5 DIALOG FRONT 43 dB -10±0.5 -10±1
NORMALIZATION CENTER 43 dB -10±0.5 -10±1
SURR 43 dB -10±0.5 -10±1
S/W 43 dB -10±0.5 -10±1
6 CONFIG 1 FRONT 1KHz 38(ref)
Ref : 1KHz 0dB 20
CENTER 1KHz 38(ref)
20
SURR 1KHz 38(ref)
20
Ref : 30Hz 0dB S/W 30Hz 18(ref)
22
7 CONFIG 2 FRONT 1KHz 38(ref)
18
8 DOWNMIXING TEST CENTER 1KHz 10(ref)
SPK:YES C->NO
X-OVER:FULL RANGE SURR.L 1KHz 14
LS->NO
SURR.R 1KHz 16
RS->NO
FRONT 1KHz 6(ref)
ST:ON
-17±1
dB
-17±3
-17±3
-17±3
6.0±2
dB -3±0.5
6.0±1
No. DESCRIPTION INPUT FREQ.
dB
CHAP
-17±1dB
UNIT
dB
5.5±2
7.5±2
-3±1
5.5±1
-17±1
-3±0.5
-3±0.5
dB 7.5±1
dB
dB
-3±1
dB -3±1

5
DOLBY-EX INPUT SECTION
* INPUT : COAXIAL, CD DIGITAL
* SURROUND MODE : DOLBY-EX
* VOLUME POSISTION : 55dB
* AT SPEAKER OUT SPK MODE YES,BACK-YES DOLBY-EX TEST Disc(TRACK 7)
SPEC
NOMI. LIMIT
1 OUT PUT LEVEL
Disc : DOLBY-EX -23dB
YES,BACK - L
2 T.H.D
Disc : DOLBY-EX -23dB
LPF(20KHz)
SPK:YES,BACK - 2CH
3 S/N
Disc 0dB,JIS "A"
LPF(20KHz)
DTS INPUT SECTION
* INPUT : COAXIAL, CD DIGITAL
* SURROUND MODE : DTS
* VOLUME POSISTION : 55dB
* AT SPEAKER OUT SPK MODE YES BACK-N DTS TEST Disc(TRACK 9,10,11,12,13,14,15)
SPEC
NOMI. LIMIT
1 OUT PUT LEVEL FRONT 1 KHz 10,11 V10±110±2
Disc : DTS 0dB CENTER 1 KHz 14 V10±110±2
SPK MODE:YES,BACK-NO SURR 1 KHz 12,13 V10±110±2
X-OVER:ALL FULL RANGE S/W 30 Hz 15 V 1.0±0.6 1.0±0.8
2 THD LPF(20KHZ) FRONT 1 KHz 10,11 %0.3 0.5
Disc : DTS 0dB CENTER 1 KHz 14 %0.3 0.5
SPK MODE:YES,BACK-NO SURR 1 KHz 12,13 %0.3 0.5
X-OVER:ALL FULL RANGE S/W 30 Hz 15 %0.3 0.5
3 S/N FRONT 1 KHz 10,11 dB 65 60
Disc 0dB,JIS "A" CENTER 1 KHz 14 dB 65 60
LPF(20KHz) SURR 1 KHz 12,13 dB 65 60
YES,BACK-N S/W 30 Hz 15 dB 65 60
4 DTS+NEO6 FRONT 1 KHz 9V 1.0±0.2 1.0±0.4
OUTPUT LEVEL CENTER 1 KHz 9V 1.0±0.2 1.0±0.4
Disc:ALL CH(1KHz,-20dB) SURR 1 KHz 9mV 75±20 75±30
YES,BACK-Y (L 2CH) S-BACK 1 KHz V 1.0±0.2 1.0±0.4
CHAPDESCRIPTION UNIT
BC 1 KHz
No. INPUT FREQ.
UNITNo. INPUT FREQ. CHAPDESCRIPTION
700±70 700±100
7%
7mV
0.3 0.5
BC 1 KHz STOP dB 65 60
BC 1KHz

6
VIDEO SECTION
* Load : Video output 75 ohm * MEASUREMENT POSITION : AT MONITOR OUT
* DISC : TDV - 540 TEST DISC (ABEX) * TEST INSTRUMENT : SCOPE,VN30A1
No. INPUT REMARK UNIT LIMIT NOMINAL
1 WHITE 100% C-VIDEO Vp-p 1±0.4 1±0.2
2HPF 100KHz
LPF 4.2MHz
SC Trap ON
Color S/N (VN30A1) HPF 10Khz
*ALC:OFF LPF 500KHz
*RANGE:AUTO
*BOTH
No. INPUT REMARK UNIT LIMIT NOMINAL
1 WHITE 100% Vp-p 1±0.4 1±0.2
2HPF 100KHz
LPF 4.2MHz
SC Trap ON
Color S/N (VN30A1) HPF 10Khz
*ALC:OFF LPF 500KHz
*RANGE:AUTO
*BOTH
No. INPUT REMARK UNIT LIMIT NOMINAL
1 WHITE 100% Vp-p 1±0.4 1±0.2
2
No. INPUT REMARK UNIT LIMIT NOMINAL
1 WHITE 100% Vp-p 1±0.4 1±0.2
2
No. INPUT REMARK UNIT LIMIT NOMINAL
WHITE 100% Y Vp-p 1±0.4 1±0.2
R-Y Vp-p 0.5±0.2 0.5±0.1
B-Y Vp-p 0.5±0.2 0.5±0.1
No. INPUT REMARK UNIT LIMIT NOMINAL
WHITE 100% Y Vp-p 1±0.4 1±0.2
R-Y Vp-p 0.5±0.2 0.5±0.1
B-Y Vp-p 0.5±0.2 0.5±0.1
No. INPUT REMARK UNIT LIMIT NOMINAL
WHITE 100% Y Vp-p 1±0.4 1±0.2
R-Y Vp-p 0.5±0.2 0.5±0.1
B-Y Vp-p 0.5±0.2 0.5±0.1
(7) INPUT:COMPONENT OUTPUT : COMPONENT
DESCRIPTION
1 OUTPUT LEVEL Color Bar Play (Title 2,Chap 1)
(6) INPUT : S-VIDEO OUTPUT : COMPONENT(A ONLY)
DESCRIPTION
1 OUTPUT LEVEL Color Bar Play (Title 2,Chap 1)
DESCRIPTION
1 OUTPUT LEVEL Color Bar Play (Title 2,Chap 1)
(5) INPUT : C-VIDEO OUTPUT : COMPONENT(A ONLY)
C-VIDEO mVp-p 282±100 282±80
(4) INPUT : S-VIDEO OUTPUT : S-VIDEO
DESCRIPTION
OUTPUT LEVEL
BURST LEVEL Color Bar Play (Title 2,Chap 1)
C-VIDEO mVp-p 282±80 282±50
DESCRIPTION
OUTPUT LEVEL
BURST LEVEL Color Bar Play (Title 2,Chap 1)
(3) INPUT : C-VIDEO OUTPUT : S-VIDEO
PM dB 40 45
Brightness S/N
(VN30A1)
MAGENTA TITLE2 CHAP.17 AM dB 40 45
40 45
S/N RATIO
WHITE 50% TITLE2 CHAP.4 dB
(2) INPUT : S-VIDEO OUTPUT : C-VIDEO
DESCRIPTION
OUTPUT LEVEL
45
45
MAGENTA TITLE2 CHAP.17 AM dB 40
PM dB 40
45
(1) INPUT : C-VIDEO OUTPUT : C-VIDEO
DESCRIPTION
OUTPUT LEVEL
S/N RATIO
WHITE 50% TITLE2 CHAP.4
Brightness S/N
(VN30A1) dB 40

7
Measuring methods in confirmity with IEC standard 315
Measurements condition FM : Radio frequency = 98.1MHz, Audio frequency = 1kHz
Reference level = 1mV on ( 75ohms , 300ohms )
Deviation : MONO = ±75kHz, Stereo = ±67.5kHz±7.5kHz (A) Filter = B.P.F at STEREO MONO
MONO = ±40kHz, Stereo = ±40kHz±7.5kHz (RDS)
Test Point : TP 1 = 90.1MHz, TP 2 = 98.1MHz, TP 3 = 106.1MHz (100KHz STEP(A), 50KHz STEP(RDS))
Power supply : 120V/60Hz (A), 230V/50Hz (RDS)
FM SECTION
UNIT LIMIT L/R NOMINAL L/R
TUNING RANGE LOW ~ HIGH MHz
STEP (A) AUTO/Man. kHz
STEP (RDS) AUTO/Man. kHz
USABLE SENSITIVITY TP 1 dBu 12 15
S/N = 30dB (A) TP 2 dBu 12 15
S/N = 26dB (RDS) TP 3 dBu 12 15
AUTO STOP LEVEL dBu 25±625±8
S/N RATIO MONO dBu 55 50
IHF-A STEREO dBu 50 45
T. H. D MONO 1kHz 0.7 1.2
STEREO 1kHz 1.0 1.5
OVER LOAD DISTORTION(120dBu, 75kHz) MONO dB 2 3
STEREO SEPARTION 250Hz dBu 30 25
(MAIN 90%(A), 53.5%(RDS), PILOT 10%) 1kHz dBu 30 25
EXT 19kHz FILTER 6.3kHz dBu 20 15
FREQUENCY RESPONSE(75us(A), 50us(RDS) -3dB) TP 2 Hz 60~8K 70~7K
IF REJECTION (A) 65 60
IF REJECTION (RDS) 75 70
IMAGE REJECTION (A) dB 20 18
IMAGE REJECTION (RDS) dB 75 70
AM SUPRESSION(AT AM 30% 1kHz) dB 40 35
OUTPUT LEVEL MONO (A) 500±100 500±150
OUTPUT LEVEL MONO (RDS) 280±100 280±150
RDS SENSITIVITY (RDS ONLY) TP 2 dBf 30 35
TUNER SECTION
13
12
11
5
7
6
9
8
NO.
1
100/100
DESCRIPTION
2
3
87.5~108
50/50
TP 1 dB
10
4
TP 3
TP 2 mV rms

8
AM SECTION
Measurements condition AM - MW : Radio frequency = 1000/999kHz, Audio frequency = 400Hz
Reference level = 74dBu/m), (50) ohms Modulation = 30%
Test Point : MW TP1 = (600)kHz TP2 = (1000)kHz TP3 = (1400)kHz (A)
Test Point : MW TP1 = (594)kHz TP2 = (999)kHz TP3 = (1404)kHz (RDS)
UNIT LIMIT L/R NOMINAL L/R
TUNING COVER RANGE (A) LOW ~ HIGH MW kHz
TUNING COVER RANGE (RDS) LOW ~ HIGH MW kHz
STEP (A) AUTO/Man. kHz
STEP (RDS) AUTO/Man. kHz
USABLE SENSITIVITY TP 1 dBu/m 63 65
S/N = 20dB TP 2 uV/m 63 63
TP 3 uV/m 63 63
S/N RATIO (100)dBu/m, 30% MOD TP 2 dB 35 30
T. H. D 74dBu/m, 30% MOD TP 2 % 2 3
OVER LOAD DISTORTION 100dBu/m, 80% MOD TP 2 % 3 5
FREQUENCY RESPONSE
(at 74dBu/m, 400Hz)-NO FILTER
SELECTIVITY AT SN : 20dB, ±10kHz(A)
SELECTIVITY AT SN : 20dB, ±9kHz(RDS)
AGC FIGURE OF MERIT (at 100dBu/m) TP 2 dB 50 40
IMAGE REJECTION TP 3 dB 28 25
WHISTLE MODULATION (74dBu/m, 900Hz) 2IF % 10 15
TUNED LEVEL 1000kHz(A), 999kHz(RDS) dBu/m 55±10 55±15
AUTO STOP LEVEL 1000kHz(A), 999kHz(RDS) dBu/m 55±10 55±15
OUTPUT LEVEL 74dBu/m, (30)% MOD mV rms 200±100 200±150
520~1710
522~1611
10/10
13
10
12
11
5
6
7
9
2
3
4
9
1
8
NO.
AT-6dB Hz
DESCRIPTION
80~2K 100~1.8K
TP 2 dB 23 20

Model No.:R-772
9
BLOCK DIAGRAMS - AUDIO (I)

Model No.:R-772
10
BLOCK DIAGRAMS - VIDEO (II)

11
BLOCK DIAGRAMS - POWER (III) Model No.:R-772

12
WIRING DIAGRAM Model No.:R-772
PCB4(ST-BY)
PCB-RS232
PCB1(MAIN)
PCB3(AMP)
PCB2(FRONT)
PCB4-2(D.INPUT)
TUNER ASS'Y
PCB2-4
(SETUP MIC/AUX)
PCB2-3
(H/P)
PCB2-2
(POWER SW)
PCB5(VIDEO)
PCB6-HDMI(DSP/XM)

13
M3062LFGPFP : IC402
1. Pin Description
RED COLOR : These pins must be fixed.
(8, 9, 12, 13, 14, 15, 16, 17
41, 46, 62, 64, 96, 98, 99)
Vcc1=Vcc2=Avcc=VREF:+3V3
CIRCUIT DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
12M 14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29 O.DRAIN
30 O.DRAIN
RF_RMC_RX
RF_RMC_TX
DCOUT
F_MUTE
SB_MUTE
C_MUTE
H/P_RLY
S_MUTE
SB_RLY
S_RLY
C_RLY
NMI
F_RLY
VSS
XIN
VCC1
RESET
XOUT
RMC/IR
BYTE
CNVSS(UPGRADE)
ST/BY_RLY
FL_CLK
FL_DATA
FL_CE
SUB_DATAOUT
SUB_CLK
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
4053_CONTROL
UPGRADE(CE)
NJW1197_LATCH
NJW1197_CLK
NJW1197_DATA
R2_MUTE
UPGRADE(EPM)
SPK_B_RLY
SW_MUTE
RS232 TX
RS232 RX
80
79
78
77
76
75
74 SUB_IRQ
73 MAIN_IRQ
72 PLL_CLK
71
70
69 TUNED
68
67
66 SUB_RST
65 SUB_PDN
64
63
62
61
60
59
58
57 BU2090_DATA
56 BU2090_CLK
55
54
53
52
51
OSD_CLK
OSD_DATA
OSD_CE
TA1270_SDA
TA1270_SCL
C_DET
COMP_DET
SV_DET
VCC2
COMP_MUTE
VSS
TUNER_DO
RDS_DATA
RDS_CLK
PLL_CE
PLL_DATA
24C16_SDA
24C16_SCL
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81
FL_SW KEY2 POWERDOWN PROTECTION VOL_UP SET_OPTION FUNC_UP STEP_OPTION KEY3 SUB_DATAIN VREF KEY1 AVCC FUNC_DOWN ST/BY_LED VOL_DOWN AVSS

14
R0H
R1H
Timer (16-bit)
Output (timer A): 5
Input (timer B): 6
Three-phase motor
control circuit
Watchdog timer
(15 bits)
A/D converter
(10 bits X 8 channels
Expandable up to 26 channels)
<VCC2 ports> (4)
<VCC2 ports> (4)<VCC1 ports> (4)
NOTES :
1. ROM size depends on microcomputer type.
2. RAM size depends on microcomputer type.
3. Ports P11 to P14 exist only in 128-pin version.
4. Use M16C/62PT on VCC1=VCC2.
<VCC1 ports> (4)
<VCC1 ports> (4)
UART or
clock synchronous serial I/O
(8 bits X 3 channels)
CRC arithmetic circuit (CCITT)
(Polynomial X16+X12+X5+1)
System clock
generation circuit
XIN-XOUT
XCIN-XCOUT
PLL frequency synthersizer
On-chip oscillator
Clock synchronous serial I/O
(8 bits X 2 channels)
DMAC
(2 channels)
D/A converter
(8 bits X 2 channels)
M16C/60 Series 16-bit CPU core
Internal peripheral functions
Port P0
8
Memory
R0L
R1L SB ROM (1)
Multiplier
RAM (2)
USP
ISP
INTB
PC
FLG
R2
R3
A0
A1
FB
Port P11
8
(3)
Port P14
2
(3)
Port P12
8
(3)
Port P13
8
(3)
Port P1
8
Port P2
8
Port P3
8
Port P4
8
Port P5
8
Port P6
8
Port P7
8
Port P8
7
Port P8_5 Port P9
8
Port P10
8
2. Block Diagram

15
3. Pin Function
Pin No. Symbol Description
1 SUB_DATAOUT Serial data signal Output to submicom
2 SUB_CLK Output Clock Signal for submicom.
3 NC Not used!
4 FL_CE Output for chip enable of SC16315
5 FL_CLK Clock signal output for SC16315
6 FL_DATA Data signal output for SC16315
7 RMC Input for remocon data.
8 BYTE The data bus is 16 bits long when the this pin is held "L"
9 CNVSS Switches the data bus in external memory space.
10 STBY_RLY Output to "STBY Relay ON/OFF" (At "H", it is active)
11 NC Not used!
12 RESET Input for resetting the CPU(At "L", it is active)
13 XOUT Output for 12MHz crystal oscillator
14 VSS Ground
15 XIN Input for 12MHz crystal oscillator
16 VCC1 +3.3V power supply
17 NMI Input pin for the "NMI" interrupt.
18 CENTER_RLY Output to "Center Relay ON/OFF" (At "H", it is active)
19 SUR_RLY Output to "Surround Relay ON/OFF" (At "H", it is active)
20 FRONT_RLY Output to "Front Relay ON/OFF" (At "H", it is active)
21 SB_RLY Output to "Surroundback Relay ON/OFF" (At "H", it is active)
22 NC Not used!
23 HP_RLY Output to "Headphone Relay ON/OFF" (At "H", it is active)
24 S_MUTE Output for surround channel mute(At "L", it is active)
25 SB_MUTE Output for surround back channel mute(At "L", it is active)
26 C_MUTE Output for center channel mute(At "L", it is active)
27 F_MUTE Output for front channel mute(At "L", it is active)
28 DC_OUT Control for "+12V(DC) ON/OFF" (At "H", it is active)
29 RF_RMC_RX Serial data signal Input from RF REMOCON
30 RF_RMC_TX Serial data signal Output to RF REMOCON
31 RS232_TX Serial data signal Output from "ST3232E"
32 RS232_RX Serial data signal Input from "ST3232E"
33 NC Not used!
34 NC Not used!
35 NC Not used!
36 NC Not used!
37 SPK_B_RLY Output to "Speaker B Relay ON/OFF" (At "H", it is active)
38 SW_MUTE Output for subwoofer channel mute(At "L", it is active)
39 NC Not used!
40 R2_MUTE Output for R2 mute(At "L", it is active)
41 UPGRADE(EPM) UPGRADE
42 NC Not used!
43 4053_CONT Output for control signal of 4053.
44 NC Not used!
45 NC Not used!
46 UPGRADE(CE) UPGRADE
47 NJW1197_LATCH Latch signal output for NJW1197.
48 NJW1197_CLK Clock signal output for NJW1197.
49 NJW1197_DATA Data signal output for NJW1197.

16
Pin No. Symbol Description
50 NJW1197_MUTE MUTE signal output for NJW1197.
51 OSD_DATA Data signal output for LC74781
52 OSD_CLK Clock signal output for LC74781
53 OSD_CE Output for chip enable of LC74781
54 TA1270_SCL Serial data clock signal output for "TA1270BF"
55 TA1270_SDA Serial data signal output for "TA1270BF"
56 BU2090_CLK Clock signal output for BU2090
57 BU2090_DATA Data signal output for BU2090
58 C_DET Input for detecting "Composite-Video input" condition(At "L", it is active)
59 SV_DET Input for detecting "S-Video input" condition(At "L", it is active)
60 COMP_DET Input for detecting "Component Video input" condition(At "L", it is active)
61 COMP_MUTE Output for COMP-VIDEO output mute(At "H", it is active)
62 VCC2 +3.3V power supply
63 NC Not used!
64 VSS Ground
65 SUBMICOM_PDN Output PDN DATA for submicom.
66 SUBMICOM_RST Output RST DATA for submicom.
67 NC Not used!
68 NC Not used!
69 TUNED Input for detecting "TUNED" condition(At "L", it is active)
70 NC Not used!
71 TUNER_DO Data Input from PLL IC
72 PLL_CLK Clock signal output to PLL IC
73 MAIN_IRQ
74 SUB_IRQ
75 RDS_CLK Clock signal input from RDS IC.
76 RDS_DATA Input for RDS data from RDS IC.
77 PLL_DATA Data output to PLL IC
78 PLL_CE Output for chip enable of PLL IC
79 M24C16_SCLK Clock signal output for M24C16.
80 M24C16_SDA Input/output for M24C16.
81 FUNC_DOWN Input for main function down.
82 FUNC_UP Input for main function up.
83 VOL. UP Input for main volume up.
84 VOL. DOWN Input for main volume down.
85 ST/BY_LED Output to drive STAND-BY LED(At "H", it is active)
86 FL_SW Output to "FL_B+ ON/OFF" (At "H", it is active)
87 NC Not used!
88 NC Not used!
89 POWER DOWN Input for power down.
90 KEY1 Data input for key1 scan.
91 KEY2 Data input for key2 scan.
92 KEY3 Data input for key3 scan.
93 STEP_OPTION Input for selecting the frequency ranges steps of FM and AM
94 SET_OPTION Input for selecting the model option.
95 PROTECTION Input for detecting "PROTECTION" condition
96 AVSS Ground
97 NC Not used!
98 VREF Reference voltage(Connected to +3.3V, Not VDD)
99 AVCC +3.3V power supply.
100 SUB_DATAIN Serial data signal Input from submicom

17
4. Key Table
IN
OUT
PRESET UP CONTROL UP TUNER
SW717 SW718 SW719
PRESET DOWN CONTROL DOWN EXT_IN
SW714 SW715 SW716
TUNE UP CH_LEVEL AUDIO
SW711 SW712 SW713
TUNE DOWN OSD SETUP VIDEO
SW708 SW709 SW710
MEMO/ENTER SPK_ON/OFF STEREO
SW705 SW706 SW707
ROOM2 SURROUND
SW703 SW704
AUDIO ST/BY
SW701 SW702
KEY IN 1(pin90) KEY IN 2(pin91) KEY IN 3(pin92)
0V~0.14V
1.61V~2.02V
2.03V~2.4V
0.15V~0.47V
0.48V~0.85V
0.86V~1.2V
1.21V~1.6V

18
TUNER
1. Equipment Requried
• AM Standard Signal Generator (AM SSG) • Audio Generator
• Oscilloscope • Distortion Meter
• AC Voltmeter • DC Voltmeter
• FM Standard Signal Generator (FM SSG) • Frequency Counter
• Stereo Modulator
Note : Disconnect external FM antenna prior to alignment.
2. Non RDS Version Alignment
2-1. Alignment and Test Point
2-2. AM Alignment
• Output of signal generator should not be greater than necessary to obtain an optimum output reading.
• Signal generator modulation : 30%
• Signal frequency : 400Hz
• Modulation frequency : 600, 1000, 1400kHz
• Switch : press the BAND Button to AM
Subject Signal generator
setting Set frequency setting Equipment connection Adjustment point Adjust for
Tuning voltage 520kHz 520kHz DC voltmeter RF BLOCK 520kHZ : 1.1~1.3V
OSC coil 1710kHZ: 7.2V~8.5V
(DC 1.2±0.1V)
RF Tracking 600kHz 600kHz AC voltmeter RF BLOCK Maximize audio output
oscilloscope ANT coil Repeat LOW, HIGH
tape monitor L/R frequency
IF Tracking 600kHz 600kHz AC voltmeter IF BLOCK Maximize audio output
oscilloscope Coil KSNT-104I
tape monitor L/R
Seek level 600kHz 600kHz AC voltmeter SVR 03 Tuned on point
oscilloscope
tape monitor L/R
3
4
ALIGNMENT PROCEDURES
Step
1
2
KSE
FM STEREO SEPARATION Adj.
FM AUTO STOP LEVEL Adj.
SVR02
SVR01

19
2-3. FM Alignment
•Output of signal generator should not be greater than necessary to obtain an optimum output reading.
•Signal generator modulation : MAIN : 90%, PILOT : 10%
•Signal frequency : 1kHz / Deviation : 75kHz
•Modulation frequency : 90.1MHz, 98.1MHz, 106.1MHz
•Switch : press the BAND Button to FM
Subject Signal generator
setting Set frequency setting Equipment connection Adjustment point Adjust for
Tuning voltage 87.5MHz 87.5MHz DC voltmeter 87.5MHz : 1.35~1.65V
108MHz 108MHz 108MHz : 6.5V~8.5V
(DC 1.2±0.1V)
FM DET.0V 98.1MHz 98.1MHz AC voltmeter FD1 , FD2 Minimize 0V and distortion
and oscilloscope R17
Distortion Adj DC voltmeter
tape monitor L/R
Seek stop level 98.1MHz 98.1MHz AC voltmeter SVR 01 Scan stop point to 18dBu
oscilloscope
tape monitor L/R
STEREO 98.1MHz 98.1MHz AC voltmeter MIX coil CO4 Minimize STEREO distortion
Separation oscilloscope and Maximize separation
DC voltmeter SVR02 Separation L to R
tape monitor L/R Separation R to L
3. RDS Version Alignment
3-1. Alignment and Test Point
1
2
3
4
Step
KSE
FM STEREO SEPARATION Adj.
FM AUTO STOP LEVEL Adj.
SVR02
SVR01