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M&T CASSETTE RECEIVER
KRC-V879R /RY
SERVICE MANUAL
C 2001-2 PRINTED IN KOREA
B51-7748-00 (K) 1940
The CASSETTE MECHANISM OPERATION DESCRIPTION is the same model D40-1122-05.
Please refer to the service manual for model D40-1122-05(B51-7452-00).
Escutcheon assy Front glass Panel assy
(B07-3007-03) (B10-3241-01) (A64-2135-02)
KRC-V879R
PROG PWR OFF MENU
/PTY CLK
K3i
AUD
47Wx4
DOLBY B NR ANG
EX
LOUD B NR SCAN B.S/RDM REP MTL/M.RDM TI DISP
VOL ADJ NAME.S DAB
DC cord Remote com. assy Remote com. assy
(E30-4942-05) (A70-2015-15) (A70-0886-15)
CA-R66 MASK-key
Plastic cabinet assy Lever Mounting hardware assy
(A02-1497-03) (D10-4562-04)x2 (J21-9716-03)
Torsion coil spring Screw set Antenna adaptor
(G01-2924-04) (N99-1704-05) (T90-0523-05)
40%
KRC-V879R/RY
2
F/E A 8V IC5 ONLY FL MODEL
SW5V
FM: E TYPE
AM:
FM+B 470mV(KTYPE)
230mV TAPE 2250mV
251mV(ETYPE)
FM 1715mV
AM+B IC2 B.U.5V +B
AM 1069mV
CH 4500mV
SYSTEM
, Q1-6 ONLY FL MODEL
ES
FM MUTE 4.5V
AUDIO AM 4.5V PRE OUT
BUFFER SW5V RDS IC11 DRIVER PRE AMP
DECODER IC7-9
E-VOL
440mV N.C. -B
TAPE MPX 1.8V PRE OUT
1200mV
CHANGER
SDA
SCK
E TYPE K TYPE
S METER
Q73 IC10 TAPE 1800mV 1800mV
BACK UP
SDA
SCK
FM 1372mV 1800mV
NOISE QUAL S MUTE
MUTE LOGIC B.U.5V IC4 AM 855mV 600mV
BUFFER
CH 3600mV 3600mV
2 POWER IC
3
SP OUT
IC1
AUX IN
MUTE
AM+B
FM+B
SDA
SCK
RCLK PRE MUTE
SW5V
THEMO
QUAL MUTE PROTECT
RDATA
NOISE
P MUTE
S-METER S METER
AFC AFC BEEP
IFC OUT 3 IFC OUT Q39
PLL DATA PLL DATA EXT AMP CONT EXT AMP CONT EXT.AMP CONT
PLL CLK PLL CLK
Q32
DIMMER DIMMER ILL
BLOCK DIAGRAM
CASSETTE MECH
MS OUT PHONE TEL MUTE TEL MUTE
MS OUT SYSTEM U-COM
BOLBY B/C DOLBY B/C
DOLBY ON/OFF
Q25
DOLBY ON/OFF ACC DET ACC DET ACC
MUTE MUTE
MTL ON/OFF MTL ON/OFF Q26
F/R 13 F/R ANT CONT ANT CON ANT CON
MS MODE MS MODE
R REEL R REEL
Q28
F REEL F REEL P CON P CON P CON
MODE 1 MODE 1
Q45
MODE 2
Q24 PAN5V PAN5V SW5V B.U.5V
MODE 2 B.U DET B.U DET
MODE 3 MODE 3
PACK IN PACK IN PAN5V Q23 Q21,22
SUB+ SW5V SW5V B.U.5V
SUB- CH CLK
REQ H
MOT+B
8 REQ C BACK UP
CASS/SRM
SUB MOT1
SUB MOT2
SUB MOT3
SW5V DATA C
SRM SW1
SRM SW2
SRM SW3
SRM DET
Q20 Q36
A 8V DATA H SW14V
MOTOR
A8V A 8V
RESET
ILL ON
CH CON
CH RST
CD-CHANGER CH MUTE P ON
MD-CHANGER ONLY FL MODEL
+B
CH CLK DC/DC
-B
REQ H
REQ C IC6
DATA C FOR 4.5V PRE Q33,34
DATA H 4 4 ILL AVR
CH CON A1 ONLY FL MODEL
CH RST SUB+
CH MUTE SUB- IC13
DC/DC
SRM
SUB+ SUB MOT
SUB-
MECH 2 SUB MOT Q37,38 FOR VFD
BACK UP DRIVER
Q42 +B
2 MOT+B MAIN MOT
+B
IC15
B.U.5V RESET
X13-996/999 X13-995/998 X13-994/997
SYSTEM u-COM LCD TYPE V-ILL TYPE PANEL5V FL(GRADATED) TYPE
PANEL5V
ROM
REMO SPEANA
REMO BPF
REMO PANEL5V KEY PANEL KEY PANEL
MATRIX U-COM MATRIX G/R SW
U-COM
KEY LCD G/R SW
MATRIX DRIVER G/R SW
IC1 IC1 IC1
RESET IC2
RESET RESET
SW LCD SW
SW
DRIVER
FL+B
VFD(GRADATED) FAC KRC-V879R/RY
LCD LCD
KRC-V879R/RY
COMPONENT DESCRIPTION
(X13-9950-11)
(X13-9982-72)
Component Purpose