Philips ST-D777ES User manual

ST-D777ES
AEP Model
UK Model
SERVICE MANUAL
DAB/FM/AM TUNER
SPECIFICATIONS
DAB tuner section
Frequency range 174.928 (5A) - 239.200 (13F) MHz
1452.960 (L1) - 1490.624 (L23) MHz
Sensitivity 6.9 µV/28 dBf
Signal-to-noise ratio 100 dB
THD+N 0.005 % (1 kHz)
Channel separation 90 dB (1 kHz)
Selectivity 35 dB (at adjacent channel)
Frequency response +0.2/-0.3 dB (5 Hz - 20 kHz)
DA converter Pulse D/A S-TACT128
Digital filter VC24 (only for DAB analog output)
Digital output Terminals: Coaxial and Optical
Sampling frequncy: 48 kHz
RDI output Optical
Aerial terminal 75 Ω, F female
FM tuner section
Frequency range 87.5 - 108.0 MHz
Sensitivity at 40 kHz derivation
at 26 dB quieting (mono) 0.9 µV/10.3 dBf
at 46 dB quieting (stereo) 23 µV/38.5 dBf
Signal-to-noise ratio at 40 kHz derivation
80 dB (mono), 76 dB (stereo)
THD+N 1 kHz, 40 kHz derivation
WIDE
0.035 % (mono), 0.045 % (stereo)
Channel separation 50 dB (1 kHz) WIDE
Selectivity at 400 kHz
WIDE 85 dB
NARROW 90 dB
Frequency respose +0.2/-0.3 dB (30 Hz - 15 kHz)
Aerial terminal 75Ω, IEC male
AM tuner section
Frequency range MW: 522 - 1,611 kHz (9 kHz step)
LW: 144 - 288 kHz
(1 kHz step: Manual tuning)
(3 kHz step:Automatic tuning)
Sensitivity (with AM loop aerial)
MW: 200 µV/m
LW: 700 µV/m
Signal-to-noise ratio MW: 54 dB (50 mV/m, 999 kHz)
LW: 50 dB (50 mV/m, 216 kHz)
Harmonic distortion 0.3 %
Sensitivity 50 dB
Aerial terminal Push lever
General
Power requirements 230 V, AC 50/60 Hz
Power consumption 20 W
Dimensions 430 ×97.5 ×374 mm (w/h/d)
Weight 6.2 kg
Remote control capability
IR
Station preset capacitymax. 99 (DAB, FM andAM total)
Supplied accessories • Audio cord (1)
• AM loop aerial (1)
• FM wire aerial (1)
• DAB wire aerial (1)
• Remote commander (1)
• R6 (size AA) baatteries (2)
Design and specifications are subject to change without notice.

2
TABLE OF CONTENTS
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINEWITH
MARK 0ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
1. GENERAL ······································································· 3
2. TEST MODE ································································· 12
3. ELECTRICAL ADJUSTMENTS····························· 14
4. DIAGRAMS ··································································· 17
4-1. BLOCK DIAGRAM·························································· 17
4-2. CIRCUIT BOARDS LOCATION ····································· 18
4-3. PRINTED WIRING BOARD MAIN SECTION ············ 19
4-4. SCHEMATIC DIAGRAM MAIN SECTION (1/4) ········ 20
4-5. SCHEMATIC DIAGRAM MAIN SECTION (2/4) ········ 21
4-6. SCHEMATIC DIAGRAM MAIN SECTION (3/4) ········ 22
4-7. SCHEMATIC DIAGRAM MAIN SECTION (4/4) ········ 23
4-8. SCHEMATIC DIAGRAM DISPLAY SECTION ··········· 24
4-9. PRINTED WIRING BOARD DISPLAY SECTION ······ 25
4-10. SCHEMATIC DIAGRAM POWER SECTION ············· 26
4-11. PRINTED WIRING BOARD POWER SECTION ········ 27
4-12. IC PIN FUNCTION DESCRIPTION ······························· 28
4-13. IC BLOCK DIAGRAMS ·················································· 31
5. EXPLODED VIEWS···················································· 34
5-1. FRONT PANEL SECTION ··············································· 34
5-2. MAIN SECTION······························································· 35
6. ELECTRICAL PARTS LIST ···································· 36
SERVICE POSITION
• The service position of the MAIN board is the state in which the back-panel is removed
and the MAIN board is swing-raised by 90 °.
(An insulating material is necessary to prevent the machine from shorting.)
Insulating material
MAIN board

3
SECTION 1
GENERAL
FRONT PANEL
REAR PANEL
1234
8
765
9
qd qa
0qsqf
qg
1 2 3 4 5 6 7 8
1?/1switch
2DAB button
3FM button
4AM button
5TUNING MODE button
6PTY button
7TUNING/SELECT button
8MENU button
9ENTER button
0MEMORY button
qa CHARACTER button
qs MONO/SC button
qd DISPLAY MODE button
qf EON button
qg DISPLAY button
1DAB RDI OUT OPTICAL jack
2DAB DIGITAL OUT COAXIAL jack
3DAB DIGITAL OUT OPTICAL jack
4ANTENNA DAB jack
5ANTENNA FM jack
6ANTENNA AM terminal
7ANALOG OUT jack
8POWER cord

4
This section is extracted
from instruction manual.

5

6

7

8

9

10

11

12
2. Entering the Factory Preset (In case perform just to write memory of the Factory Preset.)
1. Turn OFF the power.
2. While pressing [ENTER] and [DAB] together, turn ON [POWER] .
3. Microprocessor Version Display Mode
1. Turn off the power.
2. While pressing [MENU] and [AM] together, turn ON [POWER] .
3. The version and the date of the microprocessor are displayed.
4. Press the [ENTER] button to end this mode.
SECTION 2
TEST MODE
DAB
FM
AM
1. DisplayTube Check and KEY Check mode
1. Turn OFF the power.
2. While pressing [DISPLAY] and [MENU] together, turn ON [POWER] .
3. Display tube all lit.
4. Each time the button is pressed, the key number is counted down. After all the 14 buttons are pressed, “OK”appears.
When the [DAB], [FM] or [AM] button is pressed only, the following display appears.
5. The two eighth notes are moved from the left to the right by turning the [TUNING/SELECT] dial clockwise. The notes are moved from
the right to the left by turning the dial counterclockwise.

13
• DAB error rate display
Press [DAB] and [CHARACTER] at the same time under the DAB
tuned condition. (When the software version is 1.04, press [DAB]
ten times while [CHARACTER] is kept pressed.)
The bit error rate is displayed.
1: PIC error rate
2: MSC error rate
3: Bit rate
4: In case of audio service
F : 48 kHz sampling
H : 24 kHz sampling
In case of data service
S : stream data
F : FIDC
P : pocket data
5: DAB decoder status information
Check the contents in binary notation.
Bit 7 : not used
Bit 6 : 1 when AFC is converged.
Bits 5 to 3 : The number of CRC errors during MPEG
decode
Bit 2 : 1 when initial pulling-in is complete.
Bits 1, 0 : Contents of DAB frame length judgment
• Audio information display (DAB only)
Press [DISPLAY] and[ENTER] at the sametimeunder theDABtuned
condition.
Audio information for service that is selected at present is displayed.
1: Bit rate
2: Audio contents
stereo = stereo broadcast
joint = joint stereo broadcast
dual = dual channel broadcast
single = single channel broadcast
stream = stream data broadcast
FIDC = FIDC data broadcast
Packet = packet data broadcast
3: Sampling frequency
4: Protection level
5: Transmission mode
2 5 6 k b p s
4 8 k H z
s t e r e o
P L v 2 m o d e 1
1
34
5
2F : 0 . 0 0 E + 0 0
M : 0 . 0 0 E + 0 0
2 5 6 F
S T : C 5
1
5
4
2
3
Bit 1
0
0
1
1
Frame length
96 ms
48 ms
24 ms
Judgment impossible
Bit 0
1
0
0
1

14
FM Discriminator ADJUSTMENT
(NULL and MONO Distortion Adjustment)
Setting:
Procedure:
1. Tune the set to 98 MHz.
2. Adjust IFT202 for 0V reading on the digital voltmeter.
................... NULL
3. Adjust IFT203 for a minimum reading on the distortion meter.
................... MONO Distortion (THD)
4. Repeat the adjustments of 2 and 3 several times.
Note : When replacing the ceramic filter, perform this alignment.
SECTION 3
ELECTRICAL ADJUSTMENTS
Precautions in Repairing
If the front end unit fails, it is difficult to repair the inner circuits, so
replace the entire front end unit.
•Standard Setting of FM Stereo RF Signal Generator.
FM SECTION 0dB = 1µV
set
FM RF SSG 1kHz
highpass
filter distortion mete
r
FM ANTENNA (75Ω)LINE OUT
STEREO STANDARD SIGNAL MONAURAL
STANDARD SIGNAL
Carrier frequency : 98MHz
Modulation : Audio 1kHz
Main channel (L+R) : 33.75kHz
deviation
Sub channel (L–R) : 33.75kHz
deviation
Pilot : 7.5kHz
Deviation
Carrier frequency : 98MHz
Modulation : Audio 1kHz
75kHz deviation
set
FM RF SSG 1kHz
highpass
filter distortion mete
r
FM ANTENNA (75Ω)
Modulation : Monaural Standard signal
Output level : 6mV (76dB) (at 75 Ωopen)
LINE OUT
Digital Voltmete
r
(DC range)
TP201
NULL terminal
All the settings are performed in the Factory Preset state.(Refer to page 13.)

15
Stereo andTuned Level Adjustment
Setting:
Procedure:
1. Tune the set to 98 MHz.
2. Adjust RV203 to the point (moment) when the “STEREO”and
“TUNED”indicators will change from going off to going on.
FM Signal Level Adjustment
Setting:
Procedure:
1. Tune the set to 98 MHz.
2. Press [DISPLAY] button to display the digital signal, then adjust
RV202 to be display as “Signal 70dB”.
set
FM RF SSG
FM ANTENNA (75Ω)
Modulation : Stereo Standard signal
Output level : 18µV (25dB) (at 75 Ωopen)
set
FM RF SSG
FM ANTENNA (75Ω)
Modulation : Stereo Standard signal
Output level : 3mV (76dB) (at 75 Ωopen)
Stereo Separation Adjustment
Setting:
Procedure:
L-CH Stereo separation : A–B
R-CH Stereo separation : C–D
The separations of both channels should be equal.
set
FM RF SSG
FM ANTENNA (75Ω) LINE OUT
level meter
Modulation : Stereo Standard signal
Output level : 6mV (76dB) (at 75 Ωopen)
FM stereo
Signal generator
Output channel
L-CH
R-CH
R-CH
L-CH
Level meter
connection
L-CH
L-CH
R-CH
R-CH
Level meter
reading (dB)
A
B
Adjust RV301 for minimum
reading on Level meter
C
D
Adjust RV301 for minimum
reading on Level meter

16
AM SECTION
AMTuned Level Adjustment
Setting:
Procedure:
1. SetAM RF signal generator so that theAM antenna input level
becomes 74dBµ/m.
2. Adjust the position of RV201 so that “TUNED”lights.
Adjustment Location
[MAIN BOARD] — Component Side —
AM RF SSG
loop antenna
set
loop antenna
(Supplied accessories)
60 cm AM antenna
terminal (TM1)
30% amplitude
modulation by
400 Hz signal
Carrier frequency : 216kHz
Modulation : AUDIO 400Hz, 30% modulation
Field strength dB (µV/m) =SSG output level dB (µV/m) –26 dB.
CN702
111
CN701
114
CN704
1
15
RV301
Stereo
Separation
RV202
FM Signal Level
RV201
AM Tuned Level
TP201
RV203
FM Stereo/Tuned Level
IFT202
(NULL)
IFT203
(THD)
IFT202, 203
FM Discriminator FE202
FE101

ST-D777ES
1717
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAM
3G
+5V
REG
31
IC110
+B4(9V)
+B3(9V)
FE101
DAB FRONTEND
IC101
IF OUT
NUL
+B2(5V)
+B1(5V)
+B5(5V)
75
IC102
CH1
16
DATA
4
BCLK
5
LRCK
AFC CONTROL
IC103
AFC
SDA
SCL
SDA
SCL
DAB+9V
DRAM
IC105
24
25
2
.
.
.
1
9
12
14
18
5
.
9
.
.
47
44
41
43
50
.
51
.
.
54
.
59
60
57
.
.
.
58
4
RAS
23
CAS
3
WE
22
OE
NRRAS
55
NRCAS
53
NRAWME
56
NRAMOE
52
CTL DATA
73
CTL CLK
72
CTL LR
71
RDT0
RDT3
RAD0
RAD9
A0
A9
DQ1
DQ4
VREF
83
AD IN
80
NUL DET
77
DAB DECODER
IC104
16DA OUT
29
RDI OUT
21
SDAT
20SCLK
19
SLRCK
14
MCLK2
13
VDD0
31
VDD1
49VDD2
75VDD3
DATAI
48
BCKI
49
LRCKI
50
LVCKO1
45
CKVDD
37
DATAVDD
54
DINIT
40
Q501
AVDDL1
4
AVDDL2
5
AVDDR1
21
AVDDR2
20
CTLVDD
36
XVDD
11
VDD
55
VDD
78
+3.3V
REG
31
IC106
DAB+5V
82
AVDD
6
MPU MOD
5
MPU TX
4MPU RX
3MPU CLK
2MPADRDY
1MPU SYNC
11NRST
MPU MOD
MPU TX
MPU RX
MPU CLK
MPADRDY
MPU SYNC
NRST
DIGITAL FILTER
IC501
8
NSDOL1
6
NSDOL2
3
NSDOL3
1
NSDOL4
17
NSDOR1
19
NSDOR2
22
NSDOR3
24
NSDOR4
13XIN
1064FSI
29
SYSM
30
INIT
31
LATCH
32
SHIFT
33
SC DATA DF DA
DF CLK
DF CE
DA RST
DA MUTE
D/A CONV
IC502
NSDTIL1
56
NSDTIL2
57
NSDTIL3
58
NSDTIL4
59
NSDTIR1
49
NSDTIR2
48
NSDTIR3
47
NSDTIR4
46
CS12FSO
51
NSBCK0
54
MUTE
39
79
L1(+)
76
L1(-)
2
L2(+)
5
L2(-)
26
R1(+)
29
R1(-)
23
R2(+)
20
R2(-)
IC505
IC507 IC507
IC505
LINE AMP
IC506
IC508 IC508
IC506
10XVDD
74
AVDDPL1
75
AVDDML1
7
AVDDPL2
6
AVDDML2
31
AVDDPR1
30
AVDDMR1
18
AVDDPR2
19
AVDDMR2
13XIN
+5V
REG
31
IC503
DAB+12V
X501
49.152M
+5V
REG
13
IC504
FM
TM201
AM
RELAY
DRIVE
Q201
RY201
+B SWITCH
Q210,212
AM+12V FMAM+12V
Q208
AM
FRONTEND
Q203
Q204
MW/LW
SWITCH
Q205
RF AMP
Q202
5 9
3
19
18
20
10 IF AMP
Q206
13
16
15
CF201
450kHz
IFT201
AM RF/IF AMP
IC202
AM METER
LEVEL
RV201
FE201
IFIN
12
IFREQ
11
AMIN
14
MW/LW
9
AOUT1
17
AIN1
18
PD1
19
FM/AM
8
ATT
7
AOUT2
22
AIN2
21
PD2
22
FMIN
15
PLL
IC201
FMAM+12V IF OUT
OSC OUT
VT
+B
ANT
FM FRONTEND
FE202
EEPROM
IC602
IF AMP
Q207,209
CF202
10.7MHz IF AMP
Q211,213
CF203
10.7MHz IF AMP
Q214
CF204
10.7MHz IF AMP
Q215,216
CF205
10.7MHz
10NA/WD
6DO
4
DI
5
CL
3
CE
AP DO
AP DI
AP CL
AP CE
13
MONO
FM/IF AMP
IC203
1
15
STEREO
LEVEL
RV203
FM METER
LEVEL
RV207
13
12
8IF AMP
Q302
6
Q401
T201
AM+12V
Q301 FM
2
AM
1
5
L1
6
L2
8
R1
7R2
4
13ST
STEREO
SPARATION
RV301
FM MPX
IC301
VDD
21
CF301
456kHz
SDA
SCL
LPF302
LPF
IC302
MUTE
Q304,306
LPF302
LPF
IC302
MUTE
Q303,305
IC108
IC109
MUTE
Q502
RY501
MUTE
Q504
FMAM+12V
L
R
PJ501
ANALOG
OUT
DAB
DIGITAL OUT
(OPTICAL)
DAB
DIGITAL OUT
(COAXIAL)
DAB
RDI OUT
(OPTICAL)
79
FL DA
DA MUTE
77
IC601
SYSTEM CONTROL
DA RST
76
DF CF
75
DF CL
74
DF DA
73
NRST
90
DA MUTE
DA RST
DF CF
DF CL
DF DA
MPU SYNC
94
MPADRDY
95
MPU CLK
88
MPU RX
86
MPU TX
87
MPU MOD
89
DP SDA
31
NRST
MPU SYNC
MPADRDY
MPU CLK
MPU RX
MPU TX
MPU MOD
1110
IC603
DP SCL
32
1312
IC603
12
IC603
STEREO
47
4
13 14
2
16
X401
4.332MHz
RDS
IC401
A STP
46
RD DO
85
RD CL
84
SDA
29
XTAL
66
VCO
17
AP CE
37
AP DI
34
AP CL
36
AP DO
35
34
56
AP CE
AP DI
AP CL
AP DO
SIGNAL
52
EXTAL
68
SCL
30
X601
10MHz
5
6
16
50
SIRCS
81
FL CLK
82
FL ENB1
83
FL ENB2
78
FL RST
IC802
FL DRIVER
DA
63
CP
62
CS
61
RESET
60
4
AD1
3
AD2
BUFFER
Q803,804
5
39
40
55
SEG1
SEG35
COM1
COM16
BUFFER
Q805,806
16G
FL801
IC803
FL DRIVER
DA
63
CP
62
CS
61
RESET
60
4
AD1
3
AD2
BUFFER
Q801,802
5
39
SEG1
SEG35
FF1 FF2
SIRCS
IC801 23
53
KEY1
+3.3V
54
KEY2
55
KEY3
FUNCTION
KEY
ROTARY
ENCORDER
RV801
S801-813
T901
D906
FF1
FF2
AC
IN
S901
POWER
-30V REG
Q912,913
IC906
+5V
REG 2
3
-30V
5V SW
Q908
SWITCH
Q909
5
8
3
6
POWER
CONT
IC906
3.3V SW
Q910
FMAM +5V
DAB +5V
+3.3V
D901-904
IC901
+12V
REG 2
3
-12V SW
Q907
-12V
DAB -12V
IC903
-12V
REG 2
3
Q906
+12V SW
Q903
SWITCH
Q904
+12V SW
Q902
FMAM +12VV
DAB +12V
SWITCH
Q901
D905
IC902
+9V
REG 5
3
4
2
DAB +9V
POWER
CONTROL
Q905
96
DAB/FMAM
63
POWER
RESET
Q911
62
RESET
98 IC603
MUTE
CONTROL
Q503 AF MUTE
72
: DIGITAL OUT
• Signal Path
: FM
: ANALOG OUT
12
IC107
J101

1818
4-2. CIRCUIT BOARDS LOCATION
•Waveforms
MAIN board
•U: B+ Line.
•V: B–Line.
•Voltages and waveforms are dc with respect to ground under
no-signal (detuned) conditions.
no mark : FM
( ) : MW
< > : LW
∗: Impossible to measure
•Voltages are taken with aVOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal production tol-
erances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production tol-
erances.
•Circled numbers refer to waveforms.
•Signal path.
F: FM
f: AM
For printed wiring boards.
Note:
•X: parts extracted from the component side.
•b: Pattern from the side which enables seeing.
Note:
The components identified by mark 0or dotted line with
mark 0are critical for safety.
Replace only with part number specified.
•Indication of transistor
CThese are omitted EB
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in
each block.)
For schematic diagrams.
Note:
•All capacitors are in µF unless otherwise noted. pF: µµF 50WV
or less are not indicated except for electrolytics and tantalums.
•All resistors are in Ωand 1/4W or less unless otherwise speci-
fied.
•f: internal component.
•C: panel designation
AC SW board
KEY SW board
POWER board
DISPLAY board
ENCODER board
MAIN board
1IC201 wf
4.6Vp-p
222.2ns
2IC401 qf
2.2Vp-p
230.8ns
3IC501 rg
3.3Vp-p
40.7ns
4IC502 qd
6.0Vp-p
20.3ns
5IC502 ta
5.6Vp-p
40.7ns
6IC502 tf
6.0Vp-p
162.7ns
7IC601 yk
3.5Vp-p
100.0ns

ST-D777ES
1919
4-3. PRINTEDWIRING BOARD MAIN SECTION
Ref. No. Location
D201 E-2
D202 C-9
D203 D-9
D204 E-7
D301 E-9
D302 C-5
D501 B-4
D502 B-4
D503 B-3
D601 D-12
D602 B-11
IC101 H-4
IC102 H-2
IC103 H-3
IC104 I-3
IC105 J-5
IC106 I-5
IC107 I-2
IC108 I-2
IC109 J-2
IC110 H-6
IC201 E-3
IC202 C-8
IC203 E-7
IC301 C-5
IC302 C-3
IC401 E-8
IC501 I-6
IC502 I-9
IC503 G-9
IC504 G-9
IC505 J-11
IC506 H-11
IC507 J-12
IC508 H-12
IC601 C-12
IC602 D-12
IC603 E-11
Q201 E-2
Q202 D-6
Q203 C-6
Q204 C-7
Q205 D-7
Q206 C-9
Q207 G-5
Q208 E-4
Q209 F-5
Q210 F-5
Q211 G-6
Q212 F-5
Q213 F-6
Q214 F-6
Q215 E-5
Q216 E-6
Q301 D-9
Q302 F-9
Q303 C-2
Q304 D-2
Q305 C-2
Q306 D-2
Q401 E-7
Q501 I-7
Q502 B-3
Q503 B-4
Q504 B-3
•Semiconductor
Location
(Page 27) (Page 27)
(Page 25)
12
A
B
C
D
E
F
G
H
I
J
K
345678910111213
•Refer to page 18 for Circuit Boards Location.

ST-D777ES
2020
4-4. SCHEMATIC DIAGRAM MAIN SECTION (1/4) •Refer to page 19 for Printed Wiring Board.
•Refer to page 18 for Waveform. •Refer to page 28 for IC Pin Function Description. •Refer to page 31 for IC Block Diagrams.