Kenwood KRF-V5200D User manual

This product uses Lead Free solder.
This product complies with the RoHS directive for the European market.
AUDIO-VIDEO SURROUND RECEIVER
KRF-V5200D
KRF-V5200D-S
SERVICE MANUAL © 2007-5 PRINTED IN JAPAN
B53-4008-00 (N/J)127
* Refer to parts list on page 30.
VOLUME CONTROL
AV AUX
VIDEO L-AUDIO-R
SPEAKERS ON/OFF
PHONES
LISTEN MODE SETUP BAND AUTO/MONO ACTIVE EQ INPUT MODE
MULTI CONTROL INPUT SELECTOR PURE AUDIO MODE
DOLBY DIGITAL DTS ACTIVE EQ PURE AUDIO MODE
SURROUND CENTER
++
-
+
--
R
GRAY
L
BLUE GREEN
SUB WOOFER
++
--
R
RED
L
WHITE
COAXIAL
DVD/6CH OPTICAL
CD/DVD OPTICAL
VIDEO2
AUX CD/DVD REC OUT PLAY IN
VIDEO 1 PLAY IN VIDEO 2
REC OUT PLAY IN
MD/TAPE
L
R
CENTER
SUB
WOOFER
SURROUND FRONT
VIDEO1
OUT
DVD
IN
VIDEO1
IN
VIDEO2
IN
MONITOR
OUT
CR
CB
Y
DVD
IN
VIDEO1
IN VIDEO2
IN
MONITOR
OUT
GND
AM FM 75Ω
VIDEO
COMPONENT VIDEO
DIGITAL IN
PRE OUT
DVD / 6CH IN
AUDIO
ANTENNA
SURROUND SPEAKERS (6-16Ω)
FRONT SPEAKERS (6-16Ω)
Escutchon *
(B07-)
Escutchon *
(B07-)
Knob *
(K29-)
Knob *
(K29-)
Knob *
(K29-)
Knob *
(K29-)
Knob *
(K29-) Phone jack (E11-0271-05) Knob *
(K29-)
Knob *
(K29-)
Panel *
(A60-) Front glass
(B10-5621-02)
Foot
(J02-1464-03)x4 Pin jack (E63-1388-05)
Front glass
(B10-5623-03)
Knob *
(K29-) Knob * (K29-)
Power cord bushing
(J42-0349-05)
AC power cord *
(E30-)
Pin jack
(E63-1371-05)
Pin jack
(E63-1368-05)
Pin jack
(E63-1338-05)x3 Pin jack (E63-1417-05)
Pin jack
(E63-1146-15)
Pin jack
(E63-1416-05)
Optical receiving module
(W02-4652-05)x2
Lock terminal board
(E70-1032-05) Lock terminal board
(E70-1032-05) Lock terminal board
(E70-1031-05)
Tuner assy
(W02-4609-05)
Pin jack *
(E63-1414-05)x2

2
KRF-V5200D
ACCESSORIES / CAUTIONS
Accessories
FM indoor antenna (1)
(T90-0877-05) AM loop antenna (1) (T90-0893-05) Remote control unit (1) RC-R0517
(A70-1719-05)
Batteries (R03) (2)
(–)
Cautions
Information on Disposal of Old Electrical
and Electronic Equipment (applicable for EU
countries that have adopted separate waste
collection systems)
Products with the symbol (crossed-out wheeled
bin) cannot be disposed as household waste.
Old electrical and electronic equipment should
be recycled at a facility capable of handling
these items and their waste by products.
Contact your local authority for details in locating a
recycle facility nearest to you.
Proper recycling and waste disposal will help conserve
resources whilst preventing detrimental effects on our
health and the environment.
Resetting the Microcomputer
The microcomputer may malfunction (unit cannot be
operated, or shows an erroneous display) if the power
cord is unplugged while the power is ON, or due to
some other external factor. If this happens, execute
the following procedure to reset the microcomputer and
return the unit to its normal operating condition.
While holding down [ ] key on the unit, unplug the
power cord and plug it back in.
• Please note that resetting the microcomputer will clear
the contents of the memory and return the unit to the
state it was in when it left the factory.
Memory back up function
Please note that the following items will be deleted from
the unit's memory if the power cord is disconnected from
the AC outlet for approximately 1 day.
• Input selector settings
• Volume level
• BASS,TREBLE, INPUT level
• TONE ON/OFF
• ACTIVE EQ mode
• Dimmer level
• Speaker settings
• Sound mode settings
• Listen mode setting
• Tuner setting
Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the double-D symbol are
trademarks of Dolby Laboratories.
“DTS” and “DTS Digital Surround”
are registered trademarks of DTS,
Inc.

3
KRF-V5200D
BLOCK DIAGRAM
DSP
IC501 (X08)
COAX.
DVD/6ch
CD/DVD
OPT.
VIDEO2
OPT.
CODEC
(X08)
IC401
DIGITAL
INPUT
-20dBFs
(X08)
J595
A592
(X08)
A591
(X08)
IC51 (X08)
IC31 (X08)
IC51 (X08)
IC11 (X08) FL,FR
SW
SL,SR
CENTER
MD/TAPE J301 (X08)
VIDEO1 J311 (X08)
TUNER
UNIT
(W02-4609)
CD/DVD J301 (X08)
MD/TAPE J311 (X08)
VIDEO1 J311 (X08)
VIDEO2 J331 (X08)
AUX J301 (X08)
FRONT J302 (X14)
J331 (X08)
SW
SL,SR
CENTER
FL,FR
J341 (X08)
J331 (X08)
J341 (X08)
ANTENNA
AUX
550mV
DVD/6ch
ANALOG
INPUT
OUTPUT
ANALOG
DIGITAL REC
IC151 (X08) E VOLUME
BUFFER
BUFFER BUFFER
ATT
TONE
CENTER
SL,SR
SW
FL,FR
MUTE
Q2 (X09) 0dB
POEWR AMP
IC1/2 (X09)
Q1 (X09)
MUTE
0dB L
R
24.5V/6
24.5V/6
J2 (X09)
SPEAKERSK2 (X09)
MUTE
Q10 (X09)
C
0dB K4 (X09) J4 (X09)
Q5 (X09)
MUTE
Q6 (X09)
MUTE
K5 (X09)
0dB
0dB
SR
J3 (X09)
SL
PHONES
HP RLY
J901 (X14)
IC111 (X08)
SW
J361 (X08)
Q361 (X08)
20dB MUTE
PROTECTION CCT
TACT SWITCH
RDS
TUNER + MUTING
STANDBY LED + SW
RESET. CE CCT
IR MODULE
ROTARY ENCODERS
LED DRIVER
LED
TYPE + DEST
MAIN u-COM
IC601 (X08)
DSP UNIT
CODEC & DIR
DSP & MEMORY
AUTO DIG. SW.
SYSTEM CONTROL
DE EMPHASIS SW. REMOTE CONTROL CCT
FAN CONTROL
VIDEO IC + MUTING
SYSTEM IC
PACK CONTROL
SURR RELAY CONTROL
SP RELAY CONTROL
DETECTOR
DOT MATRIX
DISPLAY DRIVER
ANALOG MUTE + LIM.
IC602 (X14)
SELECTOR
COMPOSITE
VIDEO1
VIDEO2
DVD/6ch
CD/DVD
AV-AUX
VIDEO1
MONITOR
COMPOSITE
VIDEO IN COMPOSITE
VIDEO OUT
J601 (X14)
J602 (X14)
RELAY
K201 (X14) FUSE F201 (X14)
D501 (X09)
D502-504 (X09) +12V AVR IC3 (X09)
-12V AVR
IC4 (X09)
+5V AVR
IC881 (X08)
D205-208 (X14) u-COM. SERIAL CTRL
IC815 (X08)
+2.5V AVR
D510 (X09) DSP
DSP. MEMORY. CODEC
+3.5V AVR
IC811 (X08)
DIR. LEVEL SHIFTERS
+5V AVR
IC801 (X08)
LED DRIVER. RDS+5V AVR
IC805 (X08)
u-COM
+3.3V AVR
IC871 (X08)
DISPLAY DRIVER
POWER AMP
A-CLASS,CONFIG,LPF,
PRE-AMP, TUNER PACK
+7V AVR
Q831 (X08)
-7V AVR
Q832 (X08) E.VOLUME
IC411 (X14)
(S. COMPONENT)
VIDEO IC
-30V AVR
Q501 (X09) -20V AVR
Q504 (X09) FAN
FL
(X14)
T201
AC IN
+5V
DVIDER
K1 (X09)
D-IN
D-IN
D-IN A-IN
++++ ++
POWER SUPPLY
MPU
VIDEO SIGNAL
AUDIO SIGNAL

4
KRF-V5200D
CIRCUIT DESCRIPTION
●Fan Motor Control
Fan control signal from the microprocessor IC601 (X08)
is supplied to the base of the transistor Q502 if changes
thermal level. Normally the base voltage of Q502 is low and
Q502 is not turn-on. The base of Q503 is minus voltage
so Q503 is turn-on. Zener diodes D512 and 513 are short
circuitry if Q503 is on.The collector’s voltage of Q503 will be
the same as zener diode D524, -10volts. This voltage leads
fan motor to turn with low speed.
●AK4586VQP (IC401: X08) Port Description
Pin No. Pin Name I/O Description
1 XTO OUT Crystal output port
2 XTI IN Crystal input port
3 DVDD - Power supply for digital circuit (4.5 to 5.5V)
4 DVSS - Ground for digital circuit
5 TVDD - Buffer of power supply (2.7 to 5.5V)
6 TX OUT Transmit channel (though data) output port.
7 MCKO OUT Master clock output port
8 LRCK IN/OUT Input/output channel clock port
9 BICK IN/OUT Audio serial data clock port
10 SDTO OUT Audio serial data output port
11 SDTI1 IN DAC1 audio serial data input port
12 SDTI2 IN DAC2 audio serial data input port
13 SDTI3 IN DAC3 audio serial data input port
14 INT0 OUT Interrupt 0 port
15 INT1 OUT Interrupt 1 port
16 CDTO OUT Control data output port for 4-serial control mode
17 CDTI IN Control data input port for 4-serial control mode
18 CCLK IN Control data clock port for 4-serial control mode
19 CSN IN Chip selector port for 4-serial control mode
20 DZF2 OUT Zero detector input port-2.
21 AVSS - Ground for analog circuit
22 AVDD - Power supply for analog circuit (4.5 to 5.5V)
23 VREFH IN Reference voltage port, AVDD
24 VCOM OUT Common voltage port, AVDD/2
25 DZF1 OUT Zero detector input port-1.
26 LOUT3 OUT L-ch analog output port from internal DAC3
27 ROUT3 OUT R-ch analog output port from internal DAC3
28 LOUT2 OUT L-ch analog output port from internal DAC2
29 ROUT2 OUT R-ch analog output port from internal DAC2
30 LOUT1 OUT L-ch analog output port from internal DAC1
When thermal sensor works, the microprocessor will send
the signal to Q502 and Q502 is turn-on. The base of Q503
becomes high level and it is not turn-on. Zener diodes D512
and 513 work. The base of Q504 is high level, -26volts. Fan
motor will turn with high speed.

5
KRF-V5200D
Pin No. Pin Name I/O Description
31 ROUT1 OUT R-ch analog output port from internal DAC1
32 LIN IN L-ch analog input port
33 RIN IN R-ch analog input port
34 PVDD - Power supply for PLL (4.5 to 5.5V)
35 R - External resistor port
36 PVSS - PLL ground
37 RX4 IN No use (receiver channel 4)
38 SLAVE IN Slave mode port. L; master or slave, H;slave
39 RX3 IN Input channel 3. CD/DVD in this model.
40 TST IN Test port
41 RX2 IN Input channel 3.VIDEO 2 in this model.
42 I2C IN Mode selector port. L; 4-serial, H; IIC bus.
43 RX1 IN Input channel 1. DVD/6ch in this model.
44 PDN IN Power down and reset port
*book referred to maker's semiconductor handbook
●CS493263-CLZ (IC501: X08) Port Description
Pin No. Pin Name I/O Description
1 VD1 - Power supply for digital circuit (+2.5V)
2 DGND1 - Ground for digital circuit
3 AUDATA3 OUT Digital audio output port-3
4 /WR IN This port serves as the active-low data-write-input strobe..
5 /RD - This port serves as the active-low data bus enable.
6 A1 IN Host parallel address bit one
7 A0 IN Host parallel address bit zero
8~11 DATA7~DATA4 - Pulled up
12 VD12 - Power supply for digital circuit (+2.5V)
13 DGND2 - Ground for digital circuit
14~17 DATA3~DATA0 - Pulled up
18 /CS Host parallel chip selector
19 SCDIO IN/OUT Serial control port data input and output
20 /ABOOT OUT Control port automatic boot enable
21 /EXTMEM OUT External memory chip selector port
22 SDATAN1 IN PCM audio data input port-1
23 VD3 - Power supply for digital circuit (+2.5V)
24 DGND3 - Ground for digital circuit
25 SCLKN1 IN PCM audio input bit clock
26 LRCLKN1 IN PCM audio input sampling rate clock
27 CMPDAT IN The compressed data input port when the CDI is configured for bursty delivery
28 CMPCLK IN PCM audio input bit clock
CIRCUIT DESCRIPTION

6
KRF-V5200D
Pin No. Pin Name I/O Description
29 CMPREQ IN PCM audio input sampling rate clock
30 CLKIN IN Master clock input port
31 CLKSEL IN DSP clock selector
32 FILT2 - External filter for PLL
33 FILT1 - External filter for PLL
34 VA - Power supply for clock generator (+2.5V)
35 AGND - Ground for PLL of clock generator
36 /RESET IN Master reset input port
37 DD - Pulled up
38 DC - Pulled up
39 AUDATA2 OUT Digital audio output port-2
40 AUDATA1 OUT Digital audio output port-1
41 AUDATA0 OUT Digital audio output port-0
42 LRCLK IN/OUT Audio output sampling rate clock
43 SCLK IN Audio output bit clock
44 MCLK IN/OUT Audio master clock
*book referred to maker's semiconductor handbook
●LC72725KV (IC761: X08) Port Description
Pin No. Pin Name I/O Description
1 RDS-ID/READY OUT RDS-ID/READY output
2 RDDA OUT RDS data output
3 Vref OUT Standard voltage output (Vdda/2)
4 MPXIN IN Base band (MPX) input
5 Vdda - Analog power supply (+3V)
6 Vssa - Analog gnd.
7 FLOUT OUT Sub carrier output (Filter output)
8 CIN IN Sub carrier input (Comparator input)
9 TEST IN Test signal input
10 MODE IN Read mode setting (0: master, 1:slave)
11 Vssd - Digital gnd.
12 Vddd - Digital power supply (+3V)
13 XIN IN Crystal oscillator input (External standard signal input)
14 XOUT OUT Crystal oscillator output (4.332MHz)
15 RST IN RDS-ID/RAM reset
16 RDCL IN/OUT RDS clock output (master), RDS clock input (slave)
*book referred to maker's semiconductor handbook
CIRCUIT DESCRIPTION

7
KRF-V5200D
●Microprocessor: MN101C49KDF (IC601: X08) Port Description
Pin No. Pin Name I/O Description Logic
01 VREF- - A/D converter -ve power supply.
02 TH_DET D1 IN Thermal sensor protection detection 1 A/D
03 DET_F IN Signal level protection detection, front. A/D
04 DET_S IN Signal level protection detection, surround. A/D
05 TH_DET PACK IN Signal level protection detection, pack. A/D
06 TH_DET D2 IN Thermal sensor protection detection 2. A/D
07 FAN_LEVEL IN FAN level A/D
08 TH_DET LR IN Thermal sensor detection L/R A/D
09 S-LEVEL IN RDS signal level detection A/D
10 VREF+ - A/D converter + ve power supply
11 VDD - Microprocessor power supply port
12 OSC2 OUT Microprocessor master clock (8.38MHz)
13 OSC1 IN Microprocessor master clock (8.38MHz)
14 VSS - Microprocessor power supply port
15 XI IN No use
16 XO OUT No use
17 /MMOD IN Memory mode switch input port Always “L”
18 FL_DIN OUT FL driver data input
19 FL_D0 IN FL driver data output
20 FL_CLK OUT FL driver clock
21~23 NC OUT No use
24 /-6dB_ATT OUT -6dB ATT Active “L”
25 /NC OUT No use Active “L”
26 REMOCON IN Remote control input (interrupt)
27 RDS_CLK IN RDS clock input (interrupt)
28 RDS_DATA IN RDS data input
29 CODEC_INT IN DIR error detection input (interrupt)
30 DIGITAL_DET IN DIGITAL detection input Active “H”
31 DSP_INTREQ IN DSP interrupt request input
32 NC (For FLASH µ-com) IN No use
33 /RESET IN Microprocessor reset Active “L”
34 A_MUTE OUT Audio mute
35 LIMITER OUT Limiter
36 FAN_CONT OUT FAN control
37 AMP PROT IN AMP protection
38 AVR PROT IN AVR protection
39 HP RLY OUT Headphone relay
40 FA RLY OUT Front relay
41 NC (For FLASH µ-com) OUT No use
42~44 NC OUT No use
CIRCUIT DESCRIPTION

8
KRF-V5200D
Pin No. Pin Name I/O Description Logic
45 DSP/CODEC_SCDIN OUT DSP IC data input
46 DSP/CODEC_SCDOUT IN DSP IC data output
47 DSP/CODEC_SCCLK OUT DSP IC clock
48 NC OUT No use
49 C/SW_RLY OUT CENTER/SUBWOOFER relay
50 SL/SR_RLY OUT SURROUND relay
51 SBL/SBR RLY OUT BACK SURROUND relay
52 F.AUX_KEY IN AV AUX key input
53 VOL_ENC_A IN Volume encoder A
54 VOL_ENC_B IN Volume encoder B
55 NC OUT No use
56 /STEREO IN TUNER stereo detection
57 /SD IN TUNER signal detection
58 T_MUTE OUT TUNER mute
59 PLL_DO IN TUNER PLL IC data output
60 PLL_CLK OUT TUNER PLL IC clock output
61 PLL_DIN OUT TUNER PLL IC data input
62 PLL_CE OUT TUNER PLL IC chip enable
63 VOL_SEL_DATA OUT VOLUME IC data
64 VOL_SEL_CLK OUT VOLUME IC clock
65 SEL_DATA OUT SELECTOR IC data
66 SEL_CLK OUT SELECTOR IC clock
67 SEL_ST OUT SELECTOR IC STROBE
68 SWF_POWER OUT SUBWOOFER POWER
69 LED_DIMMER OUT LED dimmer bright: H, dark: L
70 CODEC_CS OUT CODEC CS
71 CODEC_DVF OUT CODEC DVF
72 CODEC_PDN OUT CODEC power down
73 DSP_PD OUT DSP power down
74 DSP_CS OUT DSP CS
75 EEPROM DATA IN/OUT EEPROM data
76 EEPROM CLK OUT EEPROM cock
77 S.DATA IN/OUT SL16 data
78 S.BUSY OUT SL16 busy
79 V_CTRL1 OUT VIDEO control 1
80 V_CTRL2 OUT VIDEO control 2
81 V_CTRL3 OUT VIDEO control 3
82 V_MUTE OUT VIDEO mute
83 PURE OUT PURE AUDIO MODE led
84 POWER_RLY OUT POWER relay
85 /CE1 IN Chip enable Active “L”
CIRCUIT DESCRIPTION

9
KRF-V5200D
Pin No. Pin Name I/O Description Logic
86 STANDBY_LED OUT STANDBY led
87 ENC_A1 IN SELECTOR ENC input A
88 ENC_A2 IN SELECTOR ENC input B
89 ENC_B1 IN MULTI CONTROL ENC input A
90 ENC_B2 IN MULTI CONTROL ENC input B
91 LED 2 (EQ) OUT ACTIVE EQ led
92 LED 3 (DOLBY) OUT DOLBY DIGITAL led
93 LED 4 (DTS) OUT DTS led
94 LED 5 (PURE) OUT PURE AUDIO MODE led
95 DAVSS - D/A converter power supply.
96 NC OUT No use
97 BAND_KEY IN BAND key
98 POWER_KEY IN POWER key
99 FL_STB OUT FL driver STROBE
100 DAVDD - D/A converter positive power supply.
*book referred to maker's semiconductor handbook
CIRCUIT DESCRIPTION

10
KRF-V5200D
ABCDE
1
2
3
4
5
6
7
PC BOARD
1
28 2
29 1
1
1
1
14
30
8.388MHz
1
111
121
115
4
8
4.332MHz 1
5
C833
C835
C834
C836
C714
C837
C712
C772
BE BE
X601
C111
C114
C201
C202
C203
C204
C205
C206
C207C208
C209
C210
C211
C212
C213
C214
C215
C216
C217
C218
C221
C222
C224
C
C226
C231
C232
C241
C242
X761
C95
C96
C716
R624
C117
C861
C116
C773 C774
R771
R205
R206
C153
C165
C166
R203
R204
R161
R162
C602
C741
C742
C743
R618
R626 R628
C91
C92
C118
C113
C115
R172
R171
R181
R182
C161
C162
C163
C164
C761
C762
R91
R92
R93
R94 R95
R96
R114
R151
R201
R202
R601
R603 R605
R607
R609
R611
R613
R617
R619 R620
R686
R622
R623
R625
R627
R637
R638
R639
R641
R643
R644
R649
R650
R688
R652
R690
R654
R677
R656
R636
R658
R660
R705
R662
R663
R672
R665
R666
R667
R668
R669
R670
R671
R621
R673
R676 R680
R681
R682
R683
R684
R685
R698
R687
R692
R694
R696
R697
R699
R702
R704
R741
R742
R743
R744
R761 R659
R661
R664
C171
C173
R175
R173
C175
R674
R706
R191
R184
C177
C172
C174
R174
R176
C176
C193
R193
R195 C191 C184
C195
R183 C181 C183
R185
C185
C182
R186 C186
85
14
85
14
85
14
85
14
41
58
8
916
7
8
148
17
25
100
7650
26
51 75
24
41 64
40
25
65
80
E1
Q831
Q832
J301 J311 J331
CN602
CN151
CN601
CN761
D601
IC91
IC151
IC601
IC111
IC761
IC731
IC741
IC991
IC191
IC181
IC171
X08-3482-70 (J75-0113-02) (SIDE A)
AUX CD/DVD REC OUT PLAY IN
MD/TAPE VIDEO 1 DVD/6
REC OUT PLAY IN PLAY IN
VIDEO 2 FRONT SURRO
U
AUDIO