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D-E771/E776CK
SERVICE MANUAL
Ver 1.0 1999. 04
US Model
Model Name Using Similar Mechanism CD Mechanism Type Optical Pick-Up Name
D-E700/E705 CDM-2911EBA DAX-11E
SPECIFICATIONS
CD player section System Compact disc digital audio system Laser diode properties Material: GaAlAs Wavelength: =780 nm Emission duration: Continuous Laser output: Less than 44.6 µW (This output is the value measured at a distance of 200 mm from the objective lens surface on the optical pick-up block with 7 mm aperture.) Error correction Sony Super Strategy Cross Interleave Reed Solomon Code D-A conversion 1-bit quartz time-axis control Frequency response 20 20,000 Hz +1 dB (measured by EIAJ CP2 307) Output (at 4.5 V input level) Headphones (stereo minijack) Approx. 15 mW + approx. 15 mW at 16 ohms Line output (stereo minijack) Output level 0.7 V rms at 47 kilohms Recommended load impedance over 10 kilohms Optical digital output (optical output connector) Output level: 21 to 15 dBm Wavelength: 630 690 nm at peak level General Power requirements For the area code of the model you purchased, check the upper left side of the bar code on the package. · Two Sony NH-DM2AA rechargeable batteries: 2.4 V DC Two Sony NC-DMAA rechargeable batteries: 2.4 V DC · Two LR6 (size AA) batteries: 3 V DC · AC power adaptor (DC IN 4.5 V jack): 120 V, 60 Hz · Sony DCC-E245 car battery cord for use on car battery: 4.5 V DC Dimensions (w/h/d) (without projecting parts and controls) Approx. 131.8 × 23.9 × 142.0 mm (5 1/4 × 31/32 × 5 5/8 in.) Mass (without rechargeable batteries) Approx. 200 g (7.0 oz) Operating temperature 5 °C 35 °C (41 °F 95 °F) Supplied accessories For the area code of the model you purchased, check the upper left side of the bar code on the package. D-E771 AC power adaptor (1) Headphones (1) D-E776CK AC power adaptor (1) Headphones (1) Car battery cord (1) Car connecting pack (1) Velcro tape (2) Spare fuse (1) Spiral tube (1) Design and specifications are subject to change without notice.
COMPACT DISC COMPACT PLAYER
MICROFILM
6-5. SCHEMATIC DIAGRAM
· See page 21 for Waveforms. · See page 29 for IC Block Diagrams.
D-E771/E776CK
Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. ¢ · : internal component. Note: The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified. · U : B+ Line. · H : adjustment for repair. · Power voltage is dc 4.5 V and fed with regulated dc power supply from external power voltage jack. · Voltages and waveforms are dc with respect to ground under conditions in service mode. no mark : CD PLAY : Impossible to measure · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances. · Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances. · Circled numbers refer to waveforms. · Signal path. J : CD PLAY (ANALOG OUT) c : CD PLAY (OPTICAL OUT)
25
26
27
28
D-E771/E776CK
· IC Block Diagrams IC301 TC9438FNEL
IC401
MPC18A26VMEL
IC501
BA6386K
RF24 RFO 23 RFI 22 VCC 21 PLH 20 BLT 19 RAGC 18 ASY 17
IC502
BU9326KS
COMPC SYSCKI DOUTA XPLCK DVDD DOCK SENS C2CLK RESET DGND LRCK C1F1 C1F2 C2F1 C2F2 CLK GFS C2F
N.C
(DBB1) (EMP) (SM) LRCK BCK DATA DBB2 ATT SHIFT LATCH VDX XO XI GNDX MCK 14 13 24 23 22 21 20 19 18 17 16 15 DATA INTERFACE CIRCUIT DINAMIC BASS BOOST CIRCUIT MICRO COMPUTER INTERFACE CIRCUIT
RS 1 ERROR AMP DCDTB 2 DCIN DETECT
36 INM3
+ + DET BLOCK PS PL BL BS 16 EFM + +
80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61
DVDD
DE
35 RF3
AVDD ASY EYE FCO
15 MIRR
1 2 3 4 5
AVDD
OSC
RF2 3 34 DCIN ERROR AMP INM2 4 PWM2 INP2 5 CHARGE AMP 32 BATM CHARGESW 33 CHGSW
B 26 + + C 25
CLOCK GEN
60 C1FX 59 C2FX 58 C2F3 ECC 57 C2F4 56 N.C 55 N.C 54 N.C
TIMING GENERATOR DIGITAL FILTER CIRCUIT DEEMPHASIS FILTER CIRCUIT ATTENUATOR OPERATIONAL CIRCUIT - MODULATION CIRCUIT OUTPUT CIRCUIT OUTPUT CIRCUIT ANALOG FILTER
PCO
WINDOW
+
TESTI 6 VC 7 VC PLL SUB 16k SRAM
+
53 N.C 52 N.C 51 N.C 50 N.C 49 N.C 48 TEST5 47 GAINUP 46 CK176 45 BUSY
ADPFI 8
DTC3 6 SAWTOOTH RF1 7
31 CHGOUT
D 27 14 DEFECT
ADPFO
9
30 VIN
A 28 HOLD BLOCK + +
AGND 10 RVCO 11 FOK 12 FEIN 13 FCAPA 14 FON 15
TEST CIRCUIT
ANALOG FILTER
INM1 8
+
VG
29 VOUT2
1 VDD
2 T1
3 P/S
4 VDA
6 7 8 9 5 RO GNDA VR GNDA LO
10 11 12 VDA ZD GNDD
INP1 9 PWM1 CMP1 10 PWM4 DTC1 11 SUB REFERENCE VG VG
VG
28 NC
FBIAS 29
27 VOUTB1
13 FEO 12 FOK
TEIN 16 ATS 17 TZC 18 SERVO FILTER CLV SERVO CONTROL uCOM INTERFACE
44 RW 43 DOUT 42 DIN 41 MCK
VG
26 VOUT1
VC 30
+
LOOP ON FOCUS SWITCH RAMP OSC 11 FON
TCAPA 19 TEST2 20
VREF 12
25 UPCKB1
+ +
SWEN 13
FDOUT
MUTE1
TEST3
VCPU LOW VCPU DETECT
24 UPCK1 BANDGAP REFERENCE
FE 31
10 TEO
21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
SCRATCH MIRROR CLVOPN SDOUT CLVOUT CLVOPP TDOUT TEST4 SUBSYQ SUBDATA CLVOPO DGND MUTE2 RFCK SDIN SUBCK WFCK
IC302
TA2120FN (EL)
BST OUT 24 BST SW 23 BIAS IN BIAS 22 21 PW SW 20 PW SW MT SW 19 MT SW MT TC 18 BEEP IN 17 BEEP OUT B OUT A GND 16 IN B 15
ALC
RSTB 14 ATT SW 13 SYNC 16 ATT SW
23 VG
FOCUS BIAS + SCRATCH CONTROL 9 DFR
IN A 14
ALC
CKOUT 15
OSC2
21 SW
BIAS
PCB 17
SYSTEM CONTROL
REGULATOR
20 VCPU
1 E
2 F
3 GND
4
5
6 LD
CAGC CAPC
YMDATA YMLD
NWE D1 D0
+
BST
ADDA
PW B
PW C
PW A
33 32 31 30 29 28 27
26 25 24
23 22 VDD1 21 ZSENSE
PWC SW
ALC DET
YDMUTE
YMCLK
ADDB
D3 D2
NCAS A10/NCAS2
CHGON 18
19 GND
1 BST NF
2 ADD OUT
4 RF IN PWC SW
3
5 VCC
6
7
8
9
10
11 ALC IN
12 ALC DET
OUT B OUT C OUT A
PWR MIX GND OUT
29
30
31
32
VSS YSRDATA
UC1 UC2 UC3 UC4
DIT
NTEST CLK
VDD2
UC5
+ 7 PD 8 SROCH
STEP-UP DC-DC CONVERTER
22 VDO
EI 32
IC601
SM5902AF
+
+
NRAS 34 A9 35 A8 36 A7 37 A6 38 A5 39 A4 40 A0 41 A1 42 A2 43 A3 44
20 NRESET GENERAL PORT MICRO COMPUTER 1/F
INPUT CONTROL 1
19 YBLKCK 18 YFCLK 17 YFLAG 16 ZSRDATA 15 ZLRCK 14 ZSCK
DRAM 1/F DECODER
COMPRESSION MODE THROUGH MODE ATTENUATOR OUTPUT 1/F
ENCODER
INPUT BUFFER
INPUT 1/F
13 YSCK 12 YLRCK
INPUT CONTROL 2
1
2 3 4 5 6
7
8 9
10 11
IC504
MPC17A51VMEL
VG C2H C1H CHAGE VG PUMP C1L C2L CLK VCG VLG VG VIN12 VIN34 VLG CF2 MOTOR ERR2 DRIVER OUT2A PGND2 CH2 OUT2B VR OE SAWTOOTH PSB 31 VIN34 36 35 34 33 34 C2H C1H C1L C2L
VG 1 DGNG 2 VCG
CLK 3 OE 4 VLG 5 VLG AGND PSB LOW VOLTAGE DETECTOR VLG VG VIN12
VIN12 VIN12 6 OUT1A 7 PGND1 8
30 OUT3A 29 PGND3 28 OUT3B
CF1 MOTOR ERR1 DRIVER OUT1B PGND1 CH1 OUT1A VR OE SAWTOOTH PSB 27 OUT4B 26 PGND4 25 OUT4A
OUT1B 9 OUT2B 10 VLG PGND2 11 SAW CLK GEN SAWTOOTH CF3 VG VIN12
OUT2A 12 VIN12 13 CF2 14
MOTOR DRIVER ERR3 CH3 VR OE SAWTOOTH VLG CF4 VG
OUT3B OUT3A PGND3 PSB
24 VIN34
VIN34 OUT4B
ERR2 15 ERR1 16 CF1 17 VR 18
OUT4A ERR4 PGND4 VR OE SAWTOOTH PSB
MOTOR DRIVER CH4
23 22 21 20 19
CF4 ERR4 ERR3 CF3 AGND
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