Download  Print this page

Pioneer PDR-L77 Service Manual

Hide thumbs

Advertisement

QQ
3 7 63 1515 0
COMPACT DISC RECORDER
PDR-L77
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type
PDR-L77
KUXJ/CA
MYXJ
NVXJ
ΒΆ This product is a system(s) component.
Be sure to connect it to the prescribed system component(s), otherwise damage may result.
TE
L 13942296513
C
o
m
p
o
n
e
t n
S
T
E
R
E
O
C
D
R
E
C
S
P
E
A
K
E
R
S
Y
S
S
T
E
R
E
O
C
A
S
S
E
T
T
M
N I
D I
S I
C
R
E
C
O
C
O
M
P
A
C
T
D
S I
C
R
E
This service manual should be used to-
gether with the following manual (s).
Model No.
Order No.
PDR-509
RRV2055
CONTENTS
1. SAFETY INFORMATION ...................................... 2
4. PCB CONNECTION DIAGRAM ......................... 35
5. PCB PARTS LIST ............................................... 46
www
6. ADJUSTMENT .................................................... 51
7. GENERAL INFORMATION ................................ 57
7.1 DIAGNOSIS .................................................. 57
.
PIONEER CORPORATION
PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
c
PIONEER CORPORATION 1999
http://www.xiaoyu163.com
Model
Power Requirement
AC120V
AC220-230V
AC230V
M
E
V I
E
R
X
C
S
L -
9
L -
R
W
-
T
E
M
-
-
-
-
S
L -
9
-
-
-
-
-
E
D
E
C
K
C
R
D
E
R
M
C
O
R
D
E
R
P
D
Remarks
Service guide
x
ao
y
i
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
http://www.xiaoyu163.com
8
^
DISPLAY ON/OFF
STANDBY/ON
Q Q
3
6 7
1 3
o
d
l e
. U
. S
L -
7
7
R
-
-
-
-
-
-
-
R
A -
L -
R
W
-
-
-
-
-
-
-
S
L -
8
L -
R
W
-
T
L -
7
7
-
J
L -
7
7
-
R
L -
7
7
FOR U.S. MODELS
NECESSARY INFORMATION FOR DHHS RULES
MARKED ON THE REAR BASE AND ON THE TOP
OF CD MECHANISM AS BELOW.
DANGER - LASER RADIATION WHEN OPEN.
AVOID DIRECT EXPOSURE TO BEAM.
7.1.1 POWER ON SEQUENCE ...................... 57
7.1.2 ERROR CODE ....................................... 59
7.1.3 DISASSEMBLY ...................................... 61
7.2 PARTS .......................................................... 63
7.1.2 IC ............................................................ 63
u163
7.1.2 DISPLAY ................................................. 68
.
2 9
9 4
2 8
)
TRACK NO.
DIGITAL REC LEVEL
-
+
Remarks
1 5
0 5
8
2 9
9 4
S
e
v r
c i
e
m
a
n
u
l a
E
u
o r
p
e
a
n
m
o
d
l e
m
o
d
l e
R
V
2
2
3
7
R
R
V
2
1
8
7
R
V
2
2
3
9
R
R
V
2
1
7
6
-
-
-
-
R
R
V
2
1
7
8
-
-
-
-
R
R
V
2
1
9
9
-
-
-
-
R
R
V
2
2
0
1
R
R
V
2
2
4
3
m
co
T - ZZE NOV. 1999 Printed in Japan
9 9
ORDER NO.
RRV2243
2 8
9 9
R
e
m
a
k r
s
T
h
s i
m
a
n
u
a
. l

Advertisement

Table of Contents
loading

  Related Manuals for Pioneer PDR-L77

  Summary of Contents for Pioneer PDR-L77

  • Page 1: Table Of Contents

    PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 1999 T –...
  • Page 2: Safety Information

    The use of a substitute replacement component which does Leakage 0.5mA current Device not have the same safety characteristics as the PIONEER tester under recommended replacement one, shown in the parts list in test this Service Manual, may create shock, fire, or other hazards.
  • Page 3 PDR-L77 3 7 63 1515 0 IMPORTANT LASER DIODE CHARACTERISTICS THIS PIONEER APPARATUS CONTAINS MAXIMUM OUTPUT POWER: 23 mW LASER OF CLASS ΙΙΙ b. WAVELENGTH: 778 – 787 nm SERVICING OPERATION OF THE APPARATUS S H O U L D B E D O N E B Y A S P E C I A L L Y INSTRUTED PERSON.
  • Page 4: Exploded Views And Parts List

    PDR-L77 3 7 63 1515 0 2. EXPLODED VIEWS AND PARTS LIST NOTES : Parts marked by “ NSP ” are generally unavailable because they are not in our Master Spare Parts List. mark found on some component parts indicates the importance of the safety factor of the part.
  • Page 5 Packing Sheet AHG7065 Spacer AHD7856 Fuse (T5A) See Contrast table (2) L 13942296513 (2) CONTRAST TABLE PDR-L77/KUXJ/CA, MYXJ and NVXJ are constructed the same except for the following: Part No. Symbol and Description Mark Remarks KUXJ/CA type MYXJ type NVXJ type...
  • Page 6 PDR-L77 KUXJ/CA type only 3 7 63 1515 0 37-1 2.2 EXTERIOR KUXJ/CA type only 37-2 Refer to "2.3 CD-R CORE ASSY (1/2)", "2.4 CD-R CORE ASSY (2/2)". MYXJ type only KUXJ/CA type: 39 NVXJ type: 57 KUXJ/CA type...
  • Page 7 R.C Lens AAX7772 Caution Label See Contrast table (2) FL Filter AEC7235 (2) CONTRAST TABLE PDR-L77/KUXJ/CA, MYXJ and NVXJ are constructed the same except for the following: Part No. Symbol and Description Mark Remarks KUXJ/CA type MYXJ type NVXJ type...
  • Page 8 PDR-L77 3 7 63 1515 0 2.3 CD-R CORE ASSY (1/2) • Bottom View Refer to "2.4 CD-R CORE ASSY (2/2)". L 13942296513 CD-R CORE ASSY (1/2) PARTS LIST Mark No. Description Part No. Mark No. Description Part No.
  • Page 9 PDR-L77 3 7 63 1515 0 2.4 CD-R CORE ASSY (2/2) CD-R CORE ASSY (2/2) PARTS LIST Mark No. Description Part No. SERVO MECHANISM Assy PWZ3759 DC Motor Assy (SPINDLE) PEA1235 DC Motor (CARRIAGE) PXM1042 Float Rubber A AEB7063...
  • Page 10: Block Diagram And Schematic Diagram

    PDR-L77 3 7 63 1515 0 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM (1/2) PJB ASSY (PB) CN7201 CN7704 (PB) LOUT GNDA GNDA1 (AR) (AI) GNDA GNDA2 RECD CDRD FLAC1 VA+5A JA7602 VA+5 VA+5D OPT OUT VA+5...
  • Page 11 PDR-L77 3 7 63 1515 0 PB AMP VA+5A FRKB ASSY IC7241 (PB) VA+5D BA-4558F (PB) PASSIVE L.P.F. – (PB) Q7241 IC7401 (AR) PCM1716E VA-5 GNDA1 GNDD1 GNDA1 CN7501 IC7101 IC7102 VA+5A VA+5A VA+5D BA-4558F BA-4558F (AR) – J7501...
  • Page 12 PDR-L77 3 7 63 1515 0 3.2 BLOCK DIAGRAM (2/2) SIGNAL ROUTE (AR) : ANALOG REC SIGNAL (REC) : REC SIGNAL (after A/D) (PB) (PB) : PB OUT (before D/A) (PB) : PB OUT (DI) : DIGITAL INPUT SIGNAL...
  • Page 13 PDR-L77 3 7 63 1515 0 34.5744MHz IC503 IC561 LH64256CK-70 BA7082F D-RAM VCO IC Address Data 17.2872MHz DIN2 CDLRCK DIN1 (DI) CDBCK IC501 DITOUT (DO) CDDATA LC89585 DALRCK EFM ENCODER IC CDTX DABCK CDR ASSY DADATA L 13942296513 ADLRCK...
  • Page 14 PDR-L77 3 7 63 1515 0 3.3 OVERALL WIRING DIAGRAM PJB ASSY (AWU7524) CN7201 CN7704 PWSB ASSY CN7003 CN7202 (KUXJ/CA : AWU7521) (MYXJ, NVXJ : AWU7537) L 13942296513 CN7002 CN901 SERVO MECHANISM ASSY (PWZ3759) CN601 CN452 LOADING A ASSY...
  • Page 15 PDR-L77 3 7 63 1515 0 Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". FLDP ASSY (AWU7522) CN7502 CN7502 CDR ASSY (AWM7486) L 13942296513 J7501 CN7501 1/5-...
  • Page 16 PDR-L77 3 7 63 1515 0 3.4 CD-R CORE ASSY (1/5) CD-R CORE ASSY (PYY1273) L 13942296513 ATIP DECODER u163 http://www.xiaoyu163.com...
  • Page 17 PDR-L77 3 7 63 1515 0 8 bit LATCH 8 9 10 11 12 L 13942296513 MECHA µ-COM EEPROM IC303 PYY1196 (BR93LC46F) L302,L305-L309, L311-L315,L318,L319 :OTL1040 CN301 CN7702 u163 http://www.xiaoyu163.com...
  • Page 18 PDR-L77 3 7 63 1515 0 3.5 CD-R CORE ASSY (2/5) and CD-R PICKUP CD-R CORE ASSY (PYY1273) CD-R PICKUP CN101 (PEA1351) MULTI PLEXER L 13942296513 (REC) (REC) (REC) (REC) (REC) (REC) u163 MULTI PLEXER http://www.xiaoyu163.com...
  • Page 19 PDR-L77 3 7 63 1515 0 : RF SIGNAL ROUTE (REC) : AUDIO SIGNAL ROUTE (REC) CN102 L 13942296513 RF PROCESSOR (REC) (REC) (REC) (REC) (REC) (REC) u163 http://www.xiaoyu163.com...
  • Page 20 PDR-L77 3 7 63 1515 0 3.6 CD-R CORE ASSY (3/5) CD-R CORE ASSY (PYY1273) L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 21 PDR-L77 3 7 63 1515 0 MULTI PLEXER L 13942296513 CDR SERVO AMP u163 http://www.xiaoyu163.com...
  • Page 22 PDR-L77 3 7 63 1515 0 3.7 CD-R CORE ASSY (4/5) CD-R CORE ASSY (PYY1273) • DIGITAL BLOCK D-RA (REC) EFM ENCODER IC L 13942296513 (REC) (DI1) (DI2) (REC) (REC) (REC) STRATEGY CONTROL u163 http://www.xiaoyu163.com...
  • Page 23 PDR-L77 3 7 63 1515 0 : AUDIO SIGNAL ROUTE (REC) : REC SIGNAL (after A/D) (PB) : PB OUT (before D/A) (DI1) : DIGITAL INPUT1 (DI2) D-RAM : DIGITAL INPUT2 (DO) : DIGITAL OUT : The power supply is shown with the marked box.
  • Page 24 PDR-L77 3 7 63 1515 0 3.8 CD-R CORE (5/5), SERVO MECHANISM, LOADING A and LOADING B ASSYS CD-R CORE ASSY (PYY1273) • DECODER BLOCK 5ch ACTUATOR DRIVER CN453 CN451 CN452 L 13942296513 LOADING A CN501 S501 ASSY (PWZ3760)
  • Page 25 PDR-L77 3 7 63 1515 0 L 13942296513 CD DECODER CN901 u163 : RF SIGNAL ROUTE : AUDIO SIGNAL ROUTE : The power supply is shown with the marked box. http://www.xiaoyu163.com...
  • Page 26 PDR-L77 3 7 63 1515 0 3.9 CDR ASSY CDR ASSY (AWM7486) (PB) (PB) CN7704 (PB) (PB) (DO) (DI) (PB) (AR) L 13942296513 (AR) CN7502 (AR) (REC) u163 http://www.xiaoyu163.com...
  • Page 27 PDR-L77 3 7 63 1515 0 SIGNAL ROUTE (AR) : ANALOG REC SIGNAL (REC) : REC SIGNAL (after A/D) (PB) (PB) : PB OUT SIGNAL (before D/A) (PB) : PB OUT SIGNAL (DI) : DIGITAL INPUT SIGNAL (PB) (DO)
  • Page 28 PDR-L77 3 7 63 1515 0 3.10 PWSB and PJB ASSYS PWSB ASSY (KUXJ/CA : AWU7521) (MYXJ, NVXJ : AWU7537) (AI) (PB) 10.3 L 13942296513 -12.8 -26.9 u163 • NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.
  • Page 29 PDR-L77 3 7 63 1515 0 SIGNAL ROUTE (AI) : ANALOG INPUT SIGNAL (PB) : PB OUT SIGNAL (DI) : DIGITAL INPUT SIGNAL (DO) : DIGITAL OUT SIGNAL CN7002 CN7704 CN7003 CN7202 L 13942296513 -5.1 (AI) (AI) (PB) (PB)
  • Page 30 PDR-L77 3 7 63 1515 0 3.10 FLDP and FRKB ASSYS FRKB ASSY (AWU7523) L 13942296513 CN7502 u163 FLDP ASSY (AWU7522) http://www.xiaoyu163.com...
  • Page 31 PDR-L77 3 7 63 1515 0 L 13942296513 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 FL DRIVER 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 u163 http://www.xiaoyu163.com...
  • Page 32 PDR-L77 3 7 63 1515 0 VOLTAGES and WAVEFORMS Note : The encircled numbers denote measuring point in the schematic diagram. CD-R CORE ASSY CD-R CORE ASSY DGAI D8CM Media Pickup Position CN301 - pin 5 (MREQ) CN301 - pin 13 (MSI)
  • Page 33 PDR-L77 3 7 63 1515 0 CD-R CORE ASSY CD-R CORE ASSY CN102 - pin 1 (RF) TP113 (RFAC) TP210 (FG) V: 20mV/div.(10 : 1) H: 0.5µsec/div. V: 0.2V/div.(10 : 1) H: 0.2µsec/div. V: 0.2V/div.(10 : 1) H: 1msec/div.
  • Page 34 PDR-L77 3 7 63 1515 0 CD-R CORE ASSY CD-R CORE ASSY CN501 - pin 2 (ADBCK) CN501 - pin 14 (DABCK) IC501 - pin 88 (EFM) CN452 - pin 2 (SL +) V: 0.2V/div.(10 : 1) H: 0.2µsec/div.
  • Page 35: Pcb Connection Diagram

    PDR-L77 3 7 63 1515 0 4. PCB CONNECTION DIAGRAM 4.1 SERVO MECHANISM, LOADING A and LOADING B ASSYS NOTE FOR PCB DIAGRAMS : 1. Part numbers in PCB diagrams match those in the schematic 3. The parts mounted on this PCB include all necessary parts for diagrams.
  • Page 36 PDR-L77 3 7 63 1515 0 4.2 CD-R CORE ASSY • This PCB is a four-layered board. CD-R CORE ASSY CN551 CN501 CN601 CN21 L 13942296513 CN804 CD-R PICKUP CN801 (PNP1465-B) VR164 VR161 VR141 VR162 VR163 VR101 IC361-IC364 IC303...
  • Page 37 PDR-L77 3 7 63 1515 0 • This PCB is a four-layered board. CD-R CORE ASSY L 13942296513 (PNP1465-B) Q551 Q202 IC255 IC505 IC508 IC181 Q102 IC561 IC141 IC161 u163 Q103 Q141 SIDE B http://www.xiaoyu163.com...
  • Page 38 PDR-L77 3 7 63 1515 0 4.3 CDR ASSY CN7201 SIDE A CDR ASSY CN501 L 13942296513 CN301 CN7502 u163 (ANP7336-B) Q7423 IC7451 Q7451 Q7101 Q7104 Q7513 Q7454 Q7103 Q7509–Q7511 Q7512 Q7453 IC7501 http://www.xiaoyu163.com...
  • Page 39 PDR-L77 3 7 63 1515 0 SIDE B CDR ASSY L 13942296513 u163 (ANP7336-B) Q7107 IC7101 Q7301 IC7301 Q7241 Q7508 Q7105 Q7246 IC7241 Q7507 IC7102 Q7245 IC7401 Q7505 Q7506 Q7502 Q7501 http://www.xiaoyu163.com...
  • Page 40 PDR-L77 3 7 63 1515 0 4.4 PJB ASSY PJB ASSY SIDE A L 13942296513 CN7003 (ANP7337-B) CN7704 PJB ASSY SIDE B u163 http://www.xiaoyu163.com...
  • Page 41 PDR-L77 3 7 63 1515 0 4.5 FRKB ASSY FRKB ASSY (1/3) FRKB ASSY (2/3) J7501 SIDE A FRKB ASSY (3/3) L 13942296513 (ANP7337-B) FRKB ASSY (3/3) SIDE B FRKB ASSY (1/3) FRKB ASSY (2/3) u163 http://www.xiaoyu163.com...
  • Page 42 PDR-L77 3 7 63 1515 0 4.6 PWSB ASSY SIDE A PWSB ASSY CN7202 Q7007 IC7006 IC7005 CN901 Q7008 Q7010 DC FAN MOTOR L 13942296513 (ANP7337-B) IC7052 u163 POWER CORD http://www.xiaoyu163.com...
  • Page 43 PDR-L77 3 7 63 1515 0 SIDE B PWSB ASSY Q7006 Q7009 L 13942296513 (ANP7337-B) Q7051 u163 http://www.xiaoyu163.com...
  • Page 44 PDR-L77 3 7 63 1515 0 4.7 FLDP ASSY FLDP ASSY (1/2) CN7501 SIDE A L 13942296513 CN7502 (ANP7337-B) u163 FLDP ASSY (2/2) http://www.xiaoyu163.com...
  • Page 45 PDR-L77 3 7 63 1515 0 FLDP ASSY (1/2) SIDE B L 13942296513 (ANP7337-B) u163 FLDP ASSY (2/2) http://www.xiaoyu163.com...
  • Page 46: Pcb Parts List

    PDR-L77 3 7 63 1515 0 5. PCB PARTS LIST NOTES : Parts marked by “ NSP ” are generally unavailable because they are not in our Master Spare Parts List. mark found on some component parts indicates the importance of the safety factor of the part.
  • Page 47 PDR-L77 3 7 63 1515 0 Mark No. Description Part No. Mark No. Description Part No. C208, C414 CKSQYB152K50 COILS AND FILTERS C451 CKSQYB182K50 L434, L505 CHIP COIL DTL1058 C156, C203 CKSQYB223K50 L101, L302, L305–L309 OTL1040 C113–C115, C117, C118...
  • Page 48 PDR-L77 3 7 63 1515 0 Mark No. Description Part No. Mark No. Description Part No. CAPACITORS SERVO MECHANISM ASSY C7101, C7102, C7117, C7118 CCSRCH101J50 C7413, C7414, C7507, C7516 CCSRCH101J50 C7103, C7104 CCSRCH220J50 SEMICONDUCTORS C7107, C7108 CCSRCH470J50 PC651 NJL5803K-F1...
  • Page 49 PDR-L77 3 7 63 1515 0 Mark No. Description Part No. Mark No. Description Part No. T7001 STANDBY TRANSFORMER ATT7049 CN7001 CONNECTOR POST B2B-PH-K-S PWSB ASSY CN7002 CONNECTOR B6B-PH-K-S SCREW BBZ30P080FCC (1) CONTRAST TABLE JA7201, JA7202 JACK BKB1017 AWU7537 and AWU7521 are constructed the same except...
  • Page 50 PDR-L77 3 7 63 1515 0 Mark No. Description Part No. FRKB ASSY SEMICONDUCTORS D7552 EB3804X(BCDE) D7555 SLR-343MC(NPQ) D7553 UDZS8.2B SWITCHES AND RELAYS S7505, S7507 ASG7013 RESISTORS All Resistors RS1/10S&&&J OTHERS 3P CABLE HOLDER 51048-0300 CN7501 4PJUMPER CONNECTOR 52151-0410...
  • Page 51: Adjustment

    6. ADJUSTMENT 6.1 DISCS TO BE USED 6.3.2 Operations in Test Mode Please use the remote control provited with the PDR-L77(AXD7242) 1. When adjusting the servo system adjustment or the LD service remote control(GGF1067). CD : Test disc for adjustment (STD-903 or equivalent) In Test mode, the following adjustment functions are assigned to 6.2 JIGS AND MEASURING...
  • Page 52 PDR-L77 3 7 63 1515 0 6.4 ADJUSTMENT 1 (LASER DIODE POWER ADJUSTMENT) CD-RW record power CD-R CORE ASSY CD-R overdrive CD-R record power Playback power CD-RW bias power Playback CD-R recording CD-RW recording CN102 CD-RW erase power Fig.5 Output power of the laser diode...
  • Page 53 PDR-L77 3 7 63 1515 0 DANGER – LASER RADIATION WHEN OPEN. AVOID DIRECT EXPOSURE TO BEAM. 6.4.2 CD-R Record Power Adjustment Test Point Pickup objective lens Adjustment Point VR163 (R REC), VR162 (R O.D.) VR163 : 4.60 mW ± 0.1 mW Adjustment Value VR162 : Addition of 0.1 mW ±...
  • Page 54 PDR-L77 3 7 63 1515 0 6.5 ADJUSTMENT 2 (SERVO SYSTEM ADJUSTMENT) CD-R CORE ASSY For servo adjustment, set the INPUT SELECTOR to DIGITAL. “DIGITAL” segment lights this time. INPUT SELECTOR CN102 Use the RECORD button and the REC MUTE button to make the adjustments.
  • Page 55 PDR-L77 3 7 63 1515 0 6.5.2 M-S Mix Ratio Adjustment Test Point CN102 - pin 4 (TE) and pin 3 (MPP) Test Disc STD-903 Adjustment Point RECORD button and REC MUTE button Adjust until the value of the output signals from pin 4 (TE) and pin 3 (MPP) of CN102 are the same, Adjustment Value or the differential output of these signals is minimal.
  • Page 56 PDR-L77 3 7 63 1515 0 6.5.4 Focus Bias Adjustment Test Point CN102 - pin 1 (RF) Test Disc STD-903 Adjustment Point RECORD button and REC MUTE button Adjustment Value Adjust until RF jitter is minimal or that the eye pattern of the RF waveform is most open.
  • Page 57: General Information

    PDR-L77 7. GENERAL INFORMATION 3 7 63 1515 0 7.1 DIAGNOSIS 7.1.1 POWER ON sequence P** is made to occupy No. of SYSTEM µ-com. H = Hi L = Low • depends on LED State of standby P27 RLED(STBY) : " H " Lighting P28 BLED(PWON) : "...
  • Page 58 PDR-L77 3 7 63 1515 0 7 System operation supported by cable connection only for CD-CDR Synchronization of power supply It is on/also turns off the power supply of CD-R synchronizing with on/off the power supply of the CD receiver.
  • Page 59: Error Code

    7.1.2 ERROR CODE Laser Hour Meter Indication and Error Code Display for Service The PDR-L77 can display the total turn-on time of the laser diode and error codes for service. When the TIME button is held down for about 5 seconds in stop state in Normal mode, an FL display as shown below is obtained.
  • Page 60 PDR-L77 3 7 63 1515 0 Code Symptom Contents of Error Possible Cause Checkpoints • Defective laser diode Defects related to the recording laser • Trouble in RF detection power IC201 (PA9007A) • Defective RFT RFB circuit The unit stops before it •...
  • Page 61: Disassembly

    PDR-L77 3 7 63 1515 0 7.1.3 DISASSEMBLY CD-R CORE Assy ×2 Bonnet ×2 ×4 Top Panel Assy CD-R CORE Assy ×2 Unhook Remove three connectors. ×2 ×2 CN7002 L 13942296513 CN7701 CN7702 Top Panel Assy Top Plate CD-R CORE Assy...
  • Page 62 PDR-L77 3 7 63 1515 0 Servo Mechanism Block 7.1.4 DIAGNOSIS OF CD-R CORE ASSY When diagnosing the CD-R CORE Assy, use the following Bridge Flexible Cable and Connector Assys for service. • Flexible Cable and Connector Assys for service CN101 ↔...
  • Page 63: Parts

    PDR-L77 3 7 63 1515 0 7.2 PARTS 7.2.1 IC • The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. • List of IC PE5109B, M56788FP, PE5138A PE5109B (CD-R CORE ASSY : IC301) •...
  • Page 64 PDR-L77 3 7 63 1515 0 n i l − − " : ( " x i f " ) " l a i l a i " " L " " L " " L − L 13942296513...
  • Page 65 PDR-L77 3 7 63 1515 0 M56788FP (CD-R CORE ASSY : IC451) • 5 Channel Actuator Driver • Block Diagram VBS2 IN3- VBS1 8 IN3+ IN1+ 2 OUT3 IN1- OUT1 CH3IN VBS1 VBS2 Vrefm1 Vrefm2 VM1(+) VM3(+) ×5 ×8...
  • Page 66 PDR-L77 3 7 63 1515 0 PE5138A (CDR ASSY : IC7501) • SYSTEM µ-com • Pin Function – " . " L − l a i – – − – – – l a i l a i –...
  • Page 67 PDR-L77 3 7 63 1515 0 ) I ( – – – – L " : " – – – – – – " f " L c t i t i r L 13942296513 t i r –...
  • Page 68: Display

    PDR-L77 3 7 63 1515 0 7.2.2 DISPLAY AAV7074 (FLDP ASSY : V7001) • FL TUBE • Grid Assignment L 13942296513 • Pin Connection u163 http://www.xiaoyu163.com...
  • Page 69 PDR-L77 3 7 63 1515 0 • Anode Connection L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 70: Panel Facilities And Specifications

    PDR-L77 3 7 63 1515 0 8. PANEL FACILITIES AND SPECIFICATIONS Front Panel DISPLAY ON/OFF TRACK NO. DIGITAL REC LEVEL – STANDBY/ON CD tray L 13942296513 Power light – Lights when the unit is switched ^ button – Press to play a disc, or pause a disc that’s already playing (press again to...
  • Page 71 PDR-L77 3 7 63 1515 0 Remote Control STANDBY/ON – Switch the unit between standby and on modes. Note: This unit consumes a small amount of electricity in standby mode (0.8W). FADER – Fade in or out during playback, or recording.
  • Page 72 PDR-L77 3 7 63 1515 0 Display RDM PGM RPT-1 SYNC DIGITAL FINALIZE ‡ ‡ CD-RW D.VOL SKIP ON A.TRACK FADER RDM – Lights in random-play mode. PGM – Lights in program-play mode. RPT / RPT–1 – Lights when disc repeat / track repeat mode is on.
  • Page 73: Specifications

    PDR-L77 3 7 63 1515 0 Specifications 1. General Accessories Model ........Compact disc audio system Analog Recording Adapter Remote Control Unit Applicable discs ......CDs, CD-Rs and CD-RWs (AXY7000) CU-PD113 (AXD7242) Power supply ..... AC 120 V, 60 Hz (KUXJ/CA type) AC 220 –230 V, 50/60 Hz (MYXJ type)