Sony NHF800 service manual N1####, N2####, $$$$$$ ##, 888

Page 15

Flow of Self-diagnosis Result Display mode operation:

MZ-NH700/NHF800

Ver 1.1

8.KEY CHECK MODE

This mode is used for key check.

***

1 ####

[VOL +] key

 

[VOL --] key

 

 

 

***

N ####

[VOL +] key

 

[VOL --] key

 

 

 

***

N1####

[VOL +] key

 

[VOL --] key

 

 

 

***

N2####

[VOL +] key

 

[VOL --] key

 

 

 

***

R_####

The first error

The last error

One error before the last

Two error before the last

Total recording time

Operation of The Key Check Mode

1.Enter the test mode (Display Check mode).

2.Press the [GROUP] key to activate the Key Check mode where the LCD displays as shown below.

Display

11*

$$$$$$ ##

*” : Remote commander (0: with, 4: without)

$$$$$$” : Pressed key name.

When remote commander key is pressed, display becomes as “r$$$$$”.

When the jog dial is turned, it displays “JOG+ X” or “JOG- X” (“X” is number of 1 to 3). If the jog dial is turned four click, it displays “JOG+OK” or JOG-OK”.

##” : Key voltage of remote commander. (Hexadecimal number)

3.When all keys (*1) check is OK on the main unit, it displays as follows.

Display

888

SET OK ##

 

[VOL +] key

 

[VOL --] key

 

 

 

 

 

 

7-2. Error Code of The Self-Diagnosis Result Display Mode

Error code

Description

 

 

00

No error

 

 

01

Attempt to access an abnormal address

 

 

02

High temperature detected

 

 

03

Focus error (no change)

 

 

04

Abnormal rotation of disc

 

 

05

Fault of disc discriminate

 

 

06

Error of access loop (no change)

 

 

07

Error of access loop (with change)

 

 

08

Could not read address

 

 

09

Focus error (with change)

 

 

12

Could not read data with SYNC

 

 

13

TOC address data error

 

 

32

Focus error, ABCD offset error

 

 

33

Tracking error, offset error

 

 

34

Tracking error, X1 tracking error, offset error

 

 

7-3. Clear The Total Recording Time

After replacing the optical pick-up, clear the total recording time.

1.Enter the test mode (Display Check mode).

2.Press the > key to activate the Self-Diagnosis Result Display mode.

3.Press the [VOL--]key once to display the total recording time indication.

4.Press the X key and display “ClrOK?”.

5.Press the X key again to display “RecT 0” and clear the total recording time.

When all keys (*1, 2) check is OK on the remote commander, it displays as follows.

Display

888

RMC OK ##

*1) Turn the jog dial four click clockwise and counterclockwise to jog test is OK.

*2) [RADIOON/OFF] key (MZ-NHF800) is not included in this check.

4.When all keys check are OK both the main unit and the remote commander, it display backs to the Display Check mode automatically.

5.To quit the Key Check mode, open the lid and return to the Display check mode.

15

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Contents On next SpecificationsModel Name Using Similar Mechanism MD Mechanism Type MT-MZNH900-181 Optical Pick-up NameMZ-NH700/NHF800 Flexible Circuit Board RepairingGeneral Table of ContentsDisassembly DiagramsUnleaded Solder Section Servicing NotesDisplay window MARK/REC +N button Jog dial Way control key Section GeneralDisassembly Disassembly FlowSection Main Board Case Lower SectionMechanism Deck Section MT-MZNH900-181, MD Standard PIN Case Upper SectionGear BSA, Gear SB SET Chassis AssyOP Service Assy Position of Ferrite Core Holder AssyTest Mode 00# VerOutline 0000 00#Manual AdjFOPChk CD RunOfsRun 000$$$$$$ ## ####N1#### N2####PwrAdj Electrical AdjustmentsTemp 131 ###SPwrAdj adjustments ItemNo Display Specification value Measuring point211 AD Charge Function Check VBsAdj adjustmentsVBsAdj 261 AD111 ###S DiscPr113 ###S Servo Overall Adjustment Releasing The Test ModeResume Clear Block Diagram MD Servo Section Section DiagramsMIC Block Diagram Audio SectionCLK a Block Diagram Power Supply SectionConductor Side Pattern face are indicated Parts face side Lead layout of conventional ICAbbreviation EE East European model 2FO Schematic Diagram Main /9 See page 36 for IC Block DiagramGND Schematic Diagram Main /9 See page 36 for IC Block DiagramsCSPChip Size Package CTL2ICHG XRST2 Mute 30 Sgnd Lrck Xbck Xcsadc Poenclosesw Schematic Diagram Main /9TOU NDG Printed Wiring Board Main /2 Semiconductor LocationUses unleaded solder IC601 60 IC301 AK5356VN-L IC Block DiagramsIC601 SC901585VAR2 IC602 R1160N121B-TR-FA HN58X2564FPIEZ IC Pin Function Description Oscvdd DavddDVDD25LPF DavssDvrego FiliFilo CltvDclsoutl VreflVrefr DclsoutrSCK0 AccessledSI0 SO0Gndsw DRVXcsnv PWMSETCODE3 SCS4Hizsld HizspdlSection Exploded Views 311Ref. No Description NHF800 US NH7002023-317-1 2023-318-1111 124 125 Chassis Section109 117 110M703 Mechanism Deck Section MT-MZNH900-181Ref. No Description Remark 160 3-263-453-01 PLATE, Ratchet M702Section Electrical Parts List Main 1uF 10% 10V C420 125-777-11 C415 125-777-111uF 10% 10V C416 125-777-11 1uF 10% 10V C419 125-777-117uF 10% 16V C673 125-777-11 C669 125-837-111uF 10% C671 125-777-11 1uF 10% 10V C672 127-820-11MA8056-L D303 8-719-056-54 Diode MAZS068008SONNCD6.8H-T1 MA22D2800LS0L702 216-295-00 L607 419-881-1147uH L608 400-402-21 7uH L701 216-295-00R433 245-455-21 R305 RES-CHIP 100 16W R306 10K R307 R308 216-864-11R309 RES-CHIP 16W R310 R312 R314 218-990-11 R315 218-990-11R653 RES-CHIP 22K 16W R654 R657 218-990-11 R649 245-456-21R650 216-793-11 R652 218-990-11470K 16W R922 218-977-11 S894 SWITCH, Push 2 KEYRef. No Description Remark R918 218-985-11 470K 16W R920 218-985-11506 504 501 502503 504Revision History

NHF800 specifications

The Sony NHF800 is a remarkable addition to Sony's range of high-fidelity audio devices, designed to elevate the listening experience for audiophiles and casual listeners alike. Blending cutting-edge technology with user-friendly features, the NHF800 stands out as a versatile and powerful audio solution.

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In summary, the Sony NHF800 is a well-rounded high-fidelity audio device that merges advanced technology with usability. Its high-resolution audio capability, extensive connectivity options, and user-friendly design make it an excellent choice for anyone looking to elevate their listening experience. Whether at home or out and about, the NHF800 ensures that every note resonates with clarity and detail, making music come alive like never before.